Document:

Executive Employment Agreement

 Exhibit 10.50 
  
 [LETTERHEAD] 
  
 EXECUTIVE EMPLOYMENT AGREEMENT 
  
 This Executive Employment Agreement (“Agreement”) is made effective as of September 23, 2003 (“Effective Date”), by and between Proflowers (“Company”) and Ken Constable
(“Executive”). 
  
 The parties agree as follows:

  
 1. At Will Employment. Company and Executive agree that
Executive’s employment is not for a specified period, and either party may terminate the employment relationship at any time, with or without cause or notice. 
  
 2. Duties. 
  
 2.1 Position. Executive is employed as Sr. Vice President and General Manager, Consumer Division and shall have the duties and responsibilities as
set forth on the attached job description. Executive shall perform faithfully and diligently all duties assigned to Executive. Company reserves the right to modify Executive’s position and duties at any time in its sole and absolute discretion.

  
 2.2 Best Efforts/Full-time. Executive will expend
Executive’s best efforts on behalf of Company, and will abide by all policies and decisions made by Company, as well as all applicable federal, state and local laws, regulations or ordinances. Executive will act in the best interest of Company
at all times. Executive shall devote Executive’s full business time and efforts to the performance of Executive’s assigned duties for Company, unless Executive notifies the CEO in advance of Executive’s intent to engage in other paid
work and receives the CEO’s written consent to do so. 
  
 2.3
Work Location. Executive’s principal place of work shall be located in San Diego, CA, or such other location as the parties may agree upon from time to time. 
  
 3. Compensation. 
  
 3.1 Base Salary. As compensation for Executive’s performance of Executive’s duties hereunder, Company shall pay to Executive an initial
Base Salary of Three Hundred Thousand ($300,000) per year, payable in accordance with the normal payroll practices of Company, less required deductions for state and federal withholding tax, social security and all other employment taxes and payroll
deductions. In the event Executive’s employment under this Agreement is terminated by either party, for any reason, Executive will earn the Base Salary prorated to the date of termination. 

 3.2 Corporate Annual Bonus. In addition to the base salary, Executive will be eligible to earn a
corporate annual bonus based upon fiscal year end corporate results and contingent upon his employment on the last day of the applicable fiscal year. The bonus will be paid in the pay period after fiscal year end corporate results are audited and
approved by the Vice President of Finance. If Executive’s employment is terminated without Cause before the end of the fiscal year, he will be paid a bonus, after the end of the fiscal year, based on year end corporate results, in proportion to
the number of months he worked in the fiscal year. 
  
 (a) The
amount of the corporate annual bonus will be determined at the sole and absolute discretion of the Company, based on fiscal year end corporate results. Bonus target amounts are generally determined as a percentage of base salary. The target
percentage for Executive’s position is currently fifty percent (50%) of his base salary. 
  
 (b) The Company reserves the right to alter or discontinue the corporate annual bonus, at any time, at its discretion, but such change or discontinuation willbe effective on a prospective basis. If the corporate
annual bonus is altered or discontinued before the fiscal year end, Executive shall be paid a bonus in accordance with the current plan, after the end of the fiscal year, in proportion to the number of months he worked before the bonus plan was
altered or discontinued. 
  
 3.3 Stock Options. Subject to
the Board of Directors’ approval, Executive will be granted an incentive stock option to purchase 300,000 shares of Company’s Common Stock under Company’s 1999 Stock Option/Stock Issuance Plan and related option documents at an
exercise price equal to the fair market value of that stock on the date of the grant (the “Option”). The Option will be subject to the terms and conditions of the Plan and the standard stock option agreement provided pursuant to the Plan,
which Executive will be required to sign as a condition of receiving the Option. These documents will be provided to you under separate cover. 
  
 3.4 Performance and Salary Review. The CEO will periodically review Executive’s performance on no less than an annual basis. Adjustments to
salary or other compensation, if any, may be made by the CEO, at any time, in its sole and absolute discretion. Executive’s base salary and benefits will not be reduced, unless the Company determines, for business reasons, the salaries and/or
benefits of all senior executives of the Company must be reduced. 
  
 3.5 Relocation Expenses. Subject to the contingency provided below, the Company shall reimburse Executive for the moving costs associated with Executive’s relocation from Colorado to San Diego to work for Proflowers, as follows:
(1) the shipping costs for relocation of household items (furniture, clothing, etc.) and automobiles, up to a maximum of $15,000; (2) temporary housing expenses, not to exceed $3,000 per month, for up to 3 months, for a total of $9,000 which if not
exhausted will be paid out as a cash bonus; (3) travel expenses, up to a total of $2,500, for Executive and spouse, to travel between Colorado and San Diego for the purpose of house hunting and final relocation; (4) a payment of 1% of the cost of
Executive’s new home, to pay for real estate expenses associated with the purchase of a new home in San Diego, including escrow fees, title insurance etc. but not mortgage points or attorneys fees. Executive must submit receipts for these costs
to Penny Handscomb within thirty days after they are incurred. Reimbursement for any other expenses associated with the move, shall be paid at the discretion of the CEO. In order for Proflowers to benefit from this expenditure, and for Executive to
earn it, Executive must remain employed by the Company for 
  

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 twelve (12) months. The relocation expenses shall be advanced to Executive within thirty (30) days after he submits a
request for reimbursement, with appropriate receipts, but Executive must repay Company a prorated amount of the total advanced should Executive fail to earn the relocation expenses by resigning from Proflowers or being terminated with Cause before
the end of twelve (12) months of employment. 
  
 4. Customary
Fringe Benefits. Executive will be eligible for all customary and usual fringe benefits generally available to full time employees of Company subject to the terms and conditions of Company’s benefit plan documents. Accordingly, Executive
will earn 17 days of PTO per year during the first two years of employment, but may take an additional 5 days off per year, without pay, in the first two years. Company reserves the right to change or eliminate the fringe benefits on a prospective
basis, at any time, effective upon notice to Executive. 
  
 5.
Business Expenses. Executive will be reimbursed for all reasonable, out-of-pocket business expenses incurred in the performance of Executive’s duties on behalf of Company. To obtain reimbursement, expenses must be submitted promptly with
appropriate supporting documentation in accordance with Company’s policies. 
  
 6. Termination of Executive’s Employment. 
  
 6.1 Termination for Cause by Company. Although Company anticipates a mutually rewarding employment relationship with Executive, Company may terminate Executive’s employment immediately at any time for
Cause. For purposes of this Agreement, “Cause” is defined as: (a) Executive’s material breach of this Agreement or Company’s Employee Innovations and Proprietary Rights Agreement; (b) Executive’s final, non-appealable
conviction or entry of a plea of nolo contendere for fraud, misappropriation or embezzlement, or any felony; or (c) Executive’s death. In the event Executive’s employment is terminated in accordance with this subsection 6.1, Executive
shall be entitled to receive only the Base Salary then in effect, prorated to the date of termination. All other Company obligations to Executive pursuant to this Agreement, other than vested retirement and pension benefits, if any, will become
automatically terminated and completely extinguished. Executive will not be entitled to receive the Severance Payment described in subsection 6.2 below. 
  
 6.2 Termination Without Cause by Company/Severance. Although Executive’s employment is terminable at will, and Company may terminate
Executive’s employment under this Agreement without Cause at any time, it shall provide at least thirty calendar (30) days’ advance written notice of a termination without Cause to Executive. In the event of such termination, Executive
will receive the Base Salary then in effect, prorated to the date of termination, and a “Severance Payment” equivalent to ten (10) months of Executive’s Base Salary then in effect, less all legally required deductions, payable over a
period of twelve months in accordance with Company’s regular payroll cycle, provided that Executive: (a) complies with all surviving provisions of this Agreement as specified in subsection 12.8 below; and (b) executes a full general release,
releasing all claims, other than vested retirement and pension benefits, if any, known or unknown, that Executive may have against Company arising out of or any way related to Executive’s employment or termination of employment with Company.
All other Company obligations to Executive, other than vested retirement and pension benefits, if any, will be automatically terminated and completely extinguished. 
  

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 6.3 Voluntary Resignation by Executive. Executive may voluntarily resign Executive’s position
with Company, at any on thirty (30) days’ advance written notice. In the event of Executive’s resignation, Executive will be entitled to receive only the Base Salary for the thirty-day notice period. All other Company obligations to
Executive pursuant to this Agreement, other than vested retirement and pension benefits, will become automatically terminated and completely extinguished. In addition, Executive will not be entitled to receive the Severance Payment described in
subsection 6.2 above. 
  
 7. No Conflict of Interest.
During the term of Executive’s employment with Company and during any period Executive is receiving payments from Company pursuant to this Agreement, Executive must not engage in any work, paid or unpaid, that creates an actual or potential
conflict of interest with Company. Such work shall include, but is not limited to, directly or indirectly competing with Company in any way, or acting as an officer, director, employee, consultant, stockholder, volunteer, lender, or agent of any
business enterprise of the same nature as, or which is in direct competition with, the business in which Company is now engaged or in which Company becomes engaged during the term of Executive’s employment with Company, as may be determined by
the CEO in his sole discretion. If the CEO believes such a conflict exists during the term of this Agreement, the CEO may ask Executive to choose to discontinue the other work or resign employment with Company. If the CEO believes such a conflict
exists during any period in which Executive is receiving severance payments pursuant to this Agreement, the CEO may ask Executive to choose to discontinue the other work or forfeit the remaining severance payments. In addition, Executive agrees not
to refer any client or potential client of Company to competitors of Company, without obtaining Company’s prior written consent, during the term of Executive’s employment and during any period in which Executive is receiving severance
payments from Company or is subject to the Nonsolicitation provision, paragraph 9.1, below. Nothing contained herein or in Paragraph 2.2 shall prevent Executive from serving on a Board of Directors with a company that is not in competition with the
Company, nor from participating in a volunteer capacity with a charitable institution. 
  
 8. Confidentiality and Proprietary Rights. Executive agrees to read, sign and abide by Company’s Employee Innovations and Proprietary Rights Assignment Agreement, which is provided with this Agreement and
incorporated herein by reference. 
  
 9. Nonsolicitation.
Executive understands and agrees that all information regarding Company employees and/or customers that is not a matter of public record is confidential and constitutes trade secrets, and the following nonsolicitation provisions are intended for the
protection of these assets. 
  
 9.1 Nonsolicitation of
Customers or Prospects. Executive agrees that during the term of this Agreement and for a period of one (1) year after the termination of this Agreement, Executive will not either directly or indirectly, separately or in association with others,
interfere with, impair, disrupt or damage Company’s relationship with any of its customers or customer prospects by soliciting or encouraging others to solicit any of the Company’s customers or encourage others to solicit any of them for
the purpose of diverting or taking away business from Company. 
  

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 9.2 Nonsolicitation of Company’s Employees. Executive agrees that during the term of this
Agreement and for a period of one (1) year after the termination of this Agreement, Executive will not either directly or indirectly, separately or in association with others, interfere with, impair, disrupt or damage Company’s business by
soliciting, encouraging or attempting to hire any of Company’s employees or causing others to solicit or encourage any of Company’s employees to discontinue their employment with Company. 
  
 9.3 No Violation of Rights of Third Parties. Executive warrants that
the performance of all of the terms of this Agreement and as an employee of Company does not and will not breach any agreement to keep in confidence proprietary information, knowledge or data acquired by Executive prior to his employment with
Company. Executive agrees not to disclose to Company, or induce Company to use, any confidential or proprietary information or material belonging to any previous employer or others. Executive warrants that he is not a party to any other agreement
that will interfere with his full compliance with this Agreement. Executive further agrees not to enter into any agreement, whether written or oral, in conflict with the provisions of this Agreement. 
  
 10. Injunctive Relief. Executive acknowledges that Executive’s
breach of the covenants contained in sections 7-9 (collectively “Covenants”) may cause irreparable injury to Company and agrees that in the event of any such breach, Company shall be entitled to seek temporary, preliminary and permanent
injunctive relief without the necessity ofproving actual damages. 
  
 11. Agreement to Arbitrate. To the fullest extent permitted by law, Executive and Company agree to arbitrate any controversy, claim or dispute between them arising out of or in any way related to this Agreement, the employment
relationship between Company and Executive and any disputes upon termination of employment, including but not limited to breach of contract, tort, discrimination, harassment, wrongful termination, demotion, discipline, failure to accommodate, family
and medical leave, compensation or benefits claims, constitutional claims; and any claims for violation of any local, state or federal law, statute, regulation or ordinance or common law. Claims for workers’ compensation and unemployment
insurance benefits are excluded. For the purpose of this agreement to arbitrate, references to “Company” include all parent, subsidiary or related entities and their employees, supervisors, officers, directors, agents, pension or benefit
plans, pension or benefit plan sponsors, fiduciaries, administrators, affiliates and all successors and assigns of any of them, and this agreement shall apply to them to the extent Executive’s claims arise out of or relate to their actions on
behalf of Company. 
  
 11.1 Consideration. The mutual
promise by Company and Executive to arbitrate any and all disputes between them (except for those referenced above) rather than litigate them before the courts or other bodies, provides the consideration for this agreement to arbitrate. 

 
 11.2 Initiation of Arbitration. Either party may exercise the right
to arbitrate by providing the other party with written notice of any and all claims forming the basis of such right in sufficient detail to inform the other party of the substance of such claims. In no event shall the request for arbitration be made
after the date when institution of legal or equitable proceedings based on such claims would be barred by the applicable statute of limitations. 
  

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 11.3 Arbitration Procedure. The arbitration will be conducted in San Diego, California by a single
neutral arbitrator and in accordance with the California Arbitration Act, California Code of Civil Procedure 1281 et seq. The parties are entitled to representation by an attorney or other representative of their choosing. The arbitrator shall have
the power to enter any award that could be entered by a judge of the trial court of the State of California, and only such power, and shall follow the law. The parties agree to abide by and perform any award rendered by the arbitrator. The
arbitrator shall issue the award in writing and therein state the essential findings and conclusions on which the award is based. Judgment on the award may be entered in any court having jurisdiction thereof. 
  
 11.4 Costs of Arbitration. Company shall bear the costs of the
arbitration filing and hearing fees and the cost of the arbitrator. 
  
 12. General Provisions. 
  
 12.1 Successors and
Assigns. The rights and obligations of Company under this Agreement shall inure to the benefit of and shall be binding upon the successors and assigns of Company. Executive shall not be entitled to assign any of Executive’s rights or
obligations under this Agreement. 
  
 12.2 Waiver. Either
party’s failure to enforce any provision of this Agreement shall not in any way be construed as a waiver of any such provision, or prevent that party thereafter from enforcing each and every other provision of this Agreement. 
  
 12.3 Attorneys’ Fees. Each side will bear its own attorneys’
fees in any dispute unless a statutory section at issue, if any, authorizes the award of attorneys’ fees to the prevailing party. 
  
 12.4 Severability. In the event any provision of this Agreement is found to be unenforceable by an arbitrator or court of competent jurisdiction,
such provision shall be deemed modified to the extent necessary to allow enforceability of the provision as so limited, it being intended that the parties shall receive the benefit contemplated herein to the fullest extent permitted by law. If a
deemed modification is not satisfactory in the judgment of such arbitrator or court, the unenforceable provision shall be deemed deleted, and the validity and enforceability of the remaining provisions shall not be affected thereby. 
  
 12.5 Interpretation; Construction. The headings set forth in this
Agreement are for convenience only and shall not be used in interpreting this Agreement. This Agreement has been drafted by legal counsel representing Company, but Executive has participated in the negotiation of its terms. Furthermore, Executive
acknowledges that Executive has had an opportunity to review and revise the Agreement and have it reviewed by legal counsel, if desired, and, therefore, the normal rule of construction to the effect that any ambiguities are to be resolved against
the drafting party shall not be employed in the interpretation of this Agreement. 
  
 12.6 Governing Law. This Agreement will be governed by and construed in accordance with the laws of the United States and the State of California. Each party consents to the jurisdiction and venue of the state
or federal courts in San Diego, California, if applicable, in any action, suit, or proceeding arising out of or relating to this Agreement. 
  

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 12.7 Notices. Any notice required or permitted by this Agreement shall be in writing and shall be
delivered as follows with notice deemed given as indicated: (a) by personal delivery when delivered personally; (b) by overnight courier upon written verification of receipt; (c ) by telecopy or facsimile transmission upon acknowledgment of receipt
of electronic transmission; or (d) by certified or registered mail, return receipt requested, upon verification of receipt. Notice shall be sent to the addresses set forth below, or such other address as either party may specify in writing.

  
 12.8 Survival. Sections 6.2 (Termination Without
Cause/Severance), 7 (“No Conflict of Interest”), 8 (“Confidentiality and Proprietary Rights”), 9 (“Nonsolicitation”), 10 (“Injunctive Relief”), 11 (“Agreement to Arbitrate”), 12 (“General
Provisions”) and 13 (“Entire Agreement”) of this Agreement shall survive Executive’s employment with Company. 
  
 13. Entire Agreement. This Agreement, including the Company Employee Innovations and Proprietary Rights Assignment Agreement incorporated herein by
reference and Company’s 1999 Stock Option/Stock Issuance Plan, and related option documents described in subsection 3.3 of this Agreement, constitutes the entire agreement between the parties relating to this subject matter and supersedes all
prior or simultaneous representations, discussions, negotiations, and agreements, whether written or oral. This Agreement may be amended or modified only with the written consent of Executive and the CEO. No oral waiver, amendment or modification
will be effective under any circumstances whatsoever. 
  
 THE PARTIES TO THIS
AGREEMENT HAVE READ THE FOREGOING AGREEMENT AND FULLY UNDERSTAND EACH AND EVERY PROVISION CONTAINED HEREIN. WHEREFORE, THE PARTIES HAVE EXECUTED THIS AGREEMENT ON THE DATES SHOWN BELOW. 
  

	 Dated:
	 	 9/20/03

	 	 	 	 By:
	 	     /s/    Ken
Constable        

	 	 	 	 	 	 	            KEN CONSTABLE

  
  
  

	 	 	 	 	 	 	 	 	            PROFLOWERS
					
	 Dated:
	 	 Sept 19.03

	 	 	 	 By:
	 	     /s/    Penny Handscomb

	 	 	 	 	 	 	 	 	             Penny Handscomb
             VP Human Resources & Training
             5005 Wateridge Vista Drive, Suite 200
             San Diego, CA 92121

  
  
  

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 EXHIBIT A 
  

Job Description – Sr. VP and General Manager Consumer Division 
  
 Reporting to the Chief Executive Officer: 
  

Responsibilities 
  

	 	•	 	Full P&L responsibility for $90 million business to consumer division 

  

	 	•	 	Articulate, lead, and champion division’s vision and strategy to fuel continued aggressive growth within highly competitive environment. Keeper of the company’s brand
image and customer relationships. 

  

	 	•	 	Manage and support organization which encompasses all marketing functions (acquisition, retention, business development, merchandising, public relations) along with customer service
organization Must operate effectively within shared resource environment for support in information technology, procurement, logistics, finance and human resources. 

  

	 	•	 	10-20% travel 

  

	 	•	 	And any other duties, which may be assigned from time to time 

  
 Qualifications 
  

	 	•	 	Minimum five years general management experience, with proven track record of building growth companies or divisions from $50-500 million dollars in revenues and beyond.
Experience growing companies beyond $100 million preferred. 

  

	 	•	 	Proven innovator, visionary and strategist, with deep functional expertise and track record of leadership in consumer marketing organizations. 

  

	 	•	 	Experience growing consumer businesses and capturing market share within an industry characterized by a small number of well established competitors. Ability to build powerful
brands and consumer loyalty over time with both large and small budgets. Understands difference between brand equity and brand awareness and knows how to wage war on established brands to compete for consumer mindshare. Particular interest in
products/services that create brand loyalty by virtue of perceived high quality and high value. Understands how to manage portfolio of marketing activities with various payback periods, can balance direct response and brand marketing campaigns.

  

	 	•	 	Exceptional leadership, personnel and managerial skills in general management capacity 

  

 -8-<PAGE>

                                                                   EXHIBIT 10.44

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY BRACKETS,
HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

                     PATENT ASSIGNMENT AND CROSS-LICENSE AND
                           TRADEMARK LICENSE AGREEMENT

         This Patent Assignment and Cross-License and Trademark License
Agreement ("Agreement") is entered into as of February 11, 2003 ("Effective
Date") by and between the Parties,

                  Entegris, Inc., a Minnesota corporation having corporate
         offices at 3500 Lyman Boulevard, Chaska, Minnesota 55318 ("Entegris"),
         and

                  Entegris Cayman Ltd., a Cayman Island corporation and
         wholly-owned subsidiary of Entegris, Inc. ("Entegris Cayman"), and

                  Asyst Technologies, Inc., a California corporation having a
         principal place of business at 48761 Kato Road, Fremont, California
         94538 ("Asyst").

         WHEREAS, Asyst is the owner of patents relating to wafer and/or reticle
containers, including SMIF Pods and Front Opening Unified Pods ("FOUPs"), load
ports for interfacing with wafer and/or reticle containers ("Ports"), material
handling systems for transporting, storing, delivering and loading SMIF Pods,
FOUPs and individual wafers, and systems used to track, identify, manage,
control and route lots, carriers, wafers and/or reticles during the manufacture
of semiconductor devices ("Tracking Systems").

         WHEREAS, Entegris and Entegris Cayman are the owners of patents
relating to wafer and/or reticle carriers and containers, Ports, and/or Tracking
Systems.

         WHEREAS, Entegris, Entegris Cayman, and Asyst are parties to that
certain Asset Purchase Agreement, dated as of February 11, 2003 (the "Asset
Purchase Agreement") under which the Parties have agreed to transfer and to
license certain patents relating to wafer and/or reticle containers, Ports,
material handling systems and/or Tracking Systems.

         In consideration of the above, Entegris, Entegris Cayman, and Asyst
agree as follows:

                                A R T I C L E 1

                                   DEFINITIONS

         1.1      "POD AND CARRIER PATENTS" means United States and foreign
patents issued on or before the seventh anniversary of the Effective Date having
claims directed to sealable, transportable containers, wafer and/or reticle
carriers and containers, or components of wafer and/or reticle carriers and
containers, including, but not limited to, the patents identified in Exhibit I
to this Agreement. By way of example, components of wafer and/or reticle
carriers and containers may include, without limitation, purging components,
valves, manifolds, filters, cartridges, sensors embedded in or residing in the
interior of wafer and/or reticle carriers and

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT   Page - 1 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

containers, and vapor drains. Pod and Carrier Patents do not include Combined
Pod and Port Patents, Environmental Control Patents, MHS Patents, or AutoID/Lot
Tracking Patents as defined below.

         1.2      "COMBINED POD AND PORT PATENTS" means United States and
foreign patents issued on or before the seventh anniversary of the Effective
Date having claims directed to (a) the combined structure of a wafer or reticle
container and a Port or (b) the operation of a wafer or reticle container and a
Port, including, but not limited to, the patents identified in Exhibit II to
this Agreement.

         1.3      "PORT PATENTS" means United States and foreign patents issued
on or before the seventh anniversary of the Effective Date having claims
directed to the structure and/or operation of a Port.

         1.4      "MHS PATENTS" means United States and foreign patents issued
on or before the seventh anniversary of the Effective Date having claims
directed to the structure and/or operation of a material handling system for
transporting, storing, delivering and/or loading wafer and/or reticle containers
or individual wafers in the manufacture of semiconductor devices, or components
of such a system.

         1.5      "ENVIRONMENTAL CONTROL PATENTS" means United States and
foreign patents issued on or before the seventh anniversary of the Effective
Date having claims directed to environmental control features of Ports for
controlling the environment inside of wafer and/or reticle containers, including
purging systems, including, but not limited to, the patents identified in
Exhibit III to this Agreement; provided, however, that Environmental Control
Patents do not include patents with claims principally directed to environmental
control features within wafer and/or reticle containers.

         1.6      "AUTOID/LOT TRACKING PATENTS" means United States and foreign
patents issued on or before the seventh anniversary of the Effective Date having
claims principally directed to systems or components of systems used to track,
identify, manage, control and route lots, carriers, wafers and/or reticles
during the manufacture of semiconductors or semiconductor wafers, including, but
not limited to, the patents identified in Exhibit IV to this Agreement.

         1.7      "LICENSED PATENTS" means Pod and Carrier Patents, Port
Patents, Combined Pod and Port Patents, MHS Patents, Environmental Control
Patents, and AutoID/Lot Tracking Patents.

         1.8      "EXCLUSIVE RIGHTS PATENTS" means the Patents and Applications
identified in Schedules 1b and 1c of Exhibit I to this Agreement and all foreign
equivalents and counterparts, divisions, continuations, continuations-in-part,
reexaminations, and reissues of such Patents and Applications.

         1.9      "ACQUIRED PRODUCTS" means sealable transportable containers
made primarily of plastic, wafer and/or reticle carriers and containers
specifically adapted for use in the manufacture, storage, transport of
semiconductor wafers and plastic flat panel carriers and

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT   Page - 2 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

containers specifically adapted for use in the manufacture, storage, and
transport of flat panel displays.

         1.10     "RETICLE POD" means containers for holding reticles comprising
a base, a machine operable latch mechanism, a top cover, and a seal. Reticle
Pod does not include containers used solely for shipment of reticles between
facilities.

         1.11     "NON-PLASTIC FLAT PANEL DISPLAY PRODUCTS" means non-plastic
carriers and containers specifically adapted for use in the manufacture, storage
and transport of flat panel displays.

         1.12     "LICENSED TRADEMARKS" means the marks ASYST(R),
A SYST(R), and A(R).

         1.13     "SUBSIDIARIES" means any corporation, company or other legal
entity, in which more than fifty percent (50%) of the shares entitled to vote
for the election of directors or persons performing similar functions are, now
or hereafter, owned or controlled, directly or indirectly by a Party hereto, or
jointly by the Parties hereto; provided, however, that any corporation, company
or other legal entity shall be a Subsidiary only for as long as such ownership
or control exists.

         1.14     "THIRD PARTY" means any person or entity other than Asyst,
Entegris, Entegris Cayman, Asyst's Subsidiaries, and Entegris' Subsidiaries.

         Unless otherwise defined herein all capitalized terms shall have the
same meaning and effect as set forth in the Asset Purchase Agreement.

                                A R T I C L E 2

                      PATENT ASSIGNMENT AND LICENSE GRANTS

         2.1      Asyst hereby sells, assigns, transfers and otherwise conveys
to Entegris Cayman the entire right, title and interest in and to the specific
Patents and Applications identified in Exhibit I and any foreign counterparts,
and all other patents or applications that now or in the future claim priority
to any Patent or Application identified in Exhibit I.

                  2.1.1    Asyst shall execute assignments in the form of
         Exhibit V to this Agreement and Asyst shall execute any and all other
         documents necessary and sufficient to permit Entegris Cayman to effect
         the transfer of all right, title and interest in the Patents of Exhibit
         I to Entegris Cayman and to record the assignment of the Patents or
         Applications identified in Exhibit I to Entegris Cayman in the United
         States Patent and Trademark Office and in the Patent Offices of other
         relevant jurisdictions.

                  2.1.2    Notwithstanding the provisions of Articles 2.1 and
         2.1.1, Asyst shall sell, assign, transfer and otherwise convey only
         Asyst's undivided fifty percent ownership of the right, title and
         interest in Application USSN 10/161,436 identified in Schedule 1c of
         Exhibit I.

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT   Page - 3 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

         2.2      Entegris and Entegris Cayman grant to Asyst and Asyst's
Subsidiaries a world-wide, fully-paid, exclusive, non-transferable (except as
provided in Article 7.2) license, including the right to grant sublicenses,
under all Exclusive Rights Patents owned or licensable by Entegris Cayman or
Entegris to make, have made, use, sell, offer to sell, import, export, and
otherwise dispose of, anywhere in the world, all products except Acquired
Products.

                  2.2.1    Asyst, as exclusive licensee for all products except
         Acquired Products, shall have the power to institute and prosecute, at
         Asyst's own expense, suits for infringement of the Exclusive Rights
         Patents by any products except Acquired Products, and, if required by
         law, Entegris Cayman and/or Entegris will join as party plaintiff in
         such suits.

                  2.2.2    All expenses in such suits, including Entegris
         Cayman's and Entegris' attorneys' fees, will be paid entirely by Asyst.

                  2.2.3    Asyst shall have the sole right to collect all
         damages, profits and awards of any nature resulting from such suits.

                  2.2.4    Asyst is empowered to settle any claim or suit for
         infringement of the Exclusive Rights Patents by any products except
         Acquired Products by granting the infringing party a sublicense.

                  2.2.5    Asyst, Entegris Cayman and Entegris shall reasonably
         assist and cooperate with one another with regard to litigation
         procedures such as producing documents, making inventors available for
         deposition, and providing information at the other's reasonable
         request.

         2.3      Asyst grants to Entegris Cayman a world-wide, royalty-bearing,
exclusive, non-transferable (except as provided in Article 7.2) license,
including the right to grant sublicenses, under all Combined Pod and Port
Patents owned or licensable by Asyst to make, have made, use, sell, offer to
sell, import, export, and otherwise dispose of, anywhere in the world, Acquired
Products.

                  2.3.1    Entegris Cayman, as exclusive licensee for Acquired
         Products, shall have the power to institute and prosecute, at Entegris
         Cayman's own expense, suits for infringement of the Combined Pod and
         Port Patents by Acquired Products, and, if required by law, Asyst will
         join as party plaintiff in such suits.

                  2.3.2    All expenses in such suits, including Asyst's
         attorneys' fees, will be paid entirely by Entegris Cayman.

                  2.3.3    Entegris Cayman shall have the sole right to collect
         all damages, profits and awards of any nature resulting from such
         suits.

                  2.3.4    Entegris Cayman is empowered to settle any claim or
         suit for infringement of the Combined Pod and Port Patents by Acquired
         Products by granting the infringing party a sublicense.

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT   Page - 4 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                  2.3.5    Asyst, Entegris Cayman, and Entegris shall reasonably
         assist and cooperate with one another with regard to litigation
         procedures such as producing documents, making inventors available for
         deposition, and providing information at the other's reasonable
         request.

         2.4      Entegris Cayman and Entegris grant to Asyst and Asyst's
Subsidiaries a worldwide, fully-paid, nonexclusive, nontransferable (except as
provided in Article 7.2) license under Pod and Carrier Patents owned or
licensable by Entegris Cayman or Entegris to (a) conduct development, research,
testing, or demonstration of Acquired Products, provided that Asyst does not
transfer Acquired Products to third parties for purposes other than development,
research, testing, or demonstration, and (b) to make, have made, use, sell,
offer to sell, import, export, and otherwise dispose of, anywhere in the world,
Non-Plastic Flat Panel Display Products.

         2.5      Entegris Cayman and Entegris grant to Asyst and Asyst's
Subsidiaries a world-wide, fully-paid, non-exclusive, non-transferable (except
as provided in Article 7.2) license under all Port Patents, MHS Patents,
Environmental Control Patents, and AutoID/Lot Tracking Patents owned or
licensable by Entegris Cayman or Entegris to make, have made, use, sell, offer
to sell, import, export, and otherwise dispose of, anywhere in the world, all
products except Acquired Products.

         2.6      Asyst grants to Entegris Cayman a world-wide, royalty-bearing,
non-exclusive, non-transferable (except as provided in Article 7.2) license
under Pod and Carrier Patents, MHS Patents, Environmental Control Patents, and
AutoID/Lot Tracking Patents owned or licensable by Asyst to make, have made,
use, sell, offer to sell, import, export, and otherwise dispose of, anywhere in
the world, Acquired Products.

         2.7      The licenses granted in this Article 2 shall extend for the
life of the Licensed Patents and the Exclusive Rights Patents.

         2.8      The rights and licenses granted under Articles 2.4, 2.5, and
2.6 of this Agreement exclude the right to grant sublicenses.

         2.9      No right or license is granted by Asyst to Entegris Cayman or
Entegris or by Entegris Cayman or Entegris to Asyst under this Agreement, by
implication or by estoppel, or otherwise to any patents, inventions, patent
application, know-how, technology, trademark, copyright, trade secret, or other
property right, other than the rights and licenses expressly granted in Article
2 of this Agreement.

                                A R T I C L E 3

                                   WARRANTIES

         3.1      Asyst represents and warrants that Asyst has the full right,
power, and authority to enter into and perform its obligations under this
Agreement and grant to Entegris Cayman and Entegris the licenses and other
rights as set forth herein, and there are no outstanding

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

agreements, grants, licenses, encumbrances, liens, or agreements, either written
or implied, inconsistent therewith or pursuant to which this Agreement or the
parties' performance hereunder would violate, breach, or cause a default.

         3.2      The execution, delivery, and performance of this Agreement
have been duly authorized by all necessary corporate actions on the part of
Asyst.

         3.3      Entegris Cayman represents and warrants that Entegris Cayman
has the full right, power, and authority to enter into and perform Entegris
Cayman's obligations under this Agreement, and there are no outstanding
agreements, grants, licenses, encumbrances, liens, or agreements, either written
or implied, inconsistent therewith or pursuant to which this Agreement or the
parties' performance hereunder would violate, breach, or cause a default.

         3.4      The execution, delivery, and performance of this Agreement
have been duly authorized by all necessary corporate actions on the part of
Entegris Cayman.

         3.5      Entegris represents and warrants that Entegris has the full
right, power, and authority to enter into and perform Entegris's obligations
under this Agreement, and there are no outstanding agreements, grants, licenses,
encumbrances, liens, or agreements, either written or implied, inconsistent
therewith or pursuant to which this Agreement or the parties' performance
hereunder would violate, breach, or cause a default.

         3.6      The execution, delivery, and performance of this Agreement
have been duly authorized by all necessary corporate actions on the part of
Entegris.

         3.7      DISCLAIMER OF WARRANTIES. EXCEPT AS EXPRESSLY SET FORTH
HEREIN, EACH PARTY EXPRESSLY DISCLAIMS, TO THE EXTENT ALLOWED BY APPLICABLE LAW,
ANY AND ALL WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WITHOUT
LIMITATION THE WARRANTIES OF DESIGN, MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE (EVEN IF INFORMED OF SUCH PURPOSE), NONINFRINGEMENT OF THE INTELLECTUAL
PROPERTY RIGHTS OF THIRD PARTIES, OR ARISING FROM A COURSE OF DEALING, USAGE OR
TRADE PRACTICES, IN ALL CASES WITH RESPECT THERETO.

         3.8      Nothing in this Agreement shall be construed as:

                  3.8.1    a representation or warranty by Asyst or Entegris
         Cayman or Entegris of the validity, enforceability or scope of any of
         the Licensed Patents; or

                  3.8.2    a requirement that Asyst or Entegris Cayman or
         Entegris shall file any patent application or secure any patent, except
         that Asyst will maintain all applications being transferred to Entegris
         Cayman until said files are physically transferred; or

                  3.8.3    a representation or warranty that any product made,
         used, sold, or otherwise disposed of by Asyst or Entegris Cayman or
         Entegris is free from infringement of patents of Third Parties.

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

         3.9      Asyst agrees that if Asyst intends not to maintain any
Licensed Patents owned by Asyst, Asyst will provide Entegris Cayman reasonable
notice of at least 45 days of said intention not to pay said maintenance fees or
annuities and Asyst will offer to transfer any of such patents to Entegris
Cayman for sole consideration of Entegris Cayman paying said maintenance fee or
annuity. Entegris Cayman will then provide a nonexclusive license back to Asyst
to make, use and sell products covered by any of said patents.

         3.10     Asyst will not in the future disparage the patents of Exhibit
I.

         3.11     Entegris Cayman agrees that if Entegris Cayman intends not to
maintain any Combined Pod and Port Patents, Port Patents, Environmental Control
Patents, or Auto ID/Lot Tracking Patents owned by Entegris Cayman, Entegris
Cayman will provide Asyst reasonable notice of at least 45 days of said
intention not to pay said maintenance fees or annuities and Entegris Cayman will
offer to transfer any of such patents to Asyst for sole consideration of Asyst
paying said maintenance fee or annuity. Asyst will then provide a nonexclusive
license back to Entegris Cayman to make, use and sell products covered by any of
said patents.

         3.12     Entegris agrees that if Entegris intends not to maintain any
Combined Pod and Port Patents, Port Patents, Environmental Control Patents, or
Auto ID/Lot Tracking Patents owned by Entegris, Entegris will provide Asyst
reasonable notice of at least 45 days of said intention not to pay said
maintenance fees or annuities and Entegris will offer to transfer any of such
patents to Asyst for sole consideration of Asyst paying said maintenance fee or
annuity. Asyst will then provide a nonexclusive license back to Entegris and
Entegris Cayman to make, use and sell products covered by any of said patents.

         3.13     Asyst warrants that Asyst has disclosed to Entegris all other
licenses and all pending litigation involving Pod and Carrier Patents, Combined
Pod and Port Patents, Environmental Control Patents, and Auto ID/Lot Tracking
Patents owned by Asyst.

         3.14     Entegris warrants that Entegris has disclosed to Asyst all
other licenses and all pending litigation involving Pod and Carrier Patents,
Combined Pod and Port Patents, Environmental Control Patents, and Auto ID/Lot
Tracking Patents owned by Entegris.

                                A R T I C L E 4

                                    ROYALTIES

         4.1      See Exhibit VI.

         4.2      Entegris hereby guarantees the payment of the royalties due by
Entegris Cayman under this agreement.

                                A R T I C L E 5

                           TRADEMARK LICENSE AGREEMENT

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

         5.1      Asyst grants Entegris Cayman a royalty-bearing, non-exclusive,
non-transferable (except as provided in Article 7.2) license under the Licensed
Trademarks to use the Licensed Trademarks in conjunction with marketing and
selling Acquired Products.

                  5.1.1    Use of the Licensed Trademarks by Entegris Cayman
         shall inure to the benefit of Asyst.

                  5.1.2    Entegris Cayman shall use the Licensed Trademarks in
         a form which is in accordance with sound trademark practice so as not
         to weaken the value of the Licensed Trademarks.

                  5.1.3    Entegris Cayman shall not engage in any act or
         omission which may diminish or impair the goodwill or reputation
         associated with the Licensed Trademarks.

         5.2      TRADEMARK QUALITY CONTROL.

                  5.2.1    In order to promote the goodwill symbolized by each
         of the Licensed Trademarks, Entegris Cayman will insure that the goods
         with which the Licensed Trademarks are associated are continuously of
         the same high quality as the goods marketed under the Licensed
         Trademarks by Asyst.

                  5.2.2    All uses of the Licensed Trademarks on Acquired
         Products and packaging for Acquired Products shall be approved by Asyst
         prior to use; provided, however, that such approval shall not be
         unreasonably withheld.

                  5.2.3    Upon reasonable notice from Asyst that the standards
         specified in Article 5.1 are not satisfied or discovery by Entegris
         Cayman or Entegris that the standards specified in Article 5.1 are not
         satisfied, Asyst shall have the right to inspect the Acquired Products
         manufactured by Entegris Cayman or Entegris, and the methods of
         manufacture of the Acquired Products on the premises of Entegris Cayman
         or Entegris, on the premises of third-party manufacturers, and
         elsewhere, as part of appropriate quality control.

                  5.2.4    Entegris Cayman shall, when requested by Asyst, make
         available to Asyst, at a time and place mutually agreed upon by
         Entegris Cayman and Asyst, a sample of each Acquired Product marketed
         by Entegris Cayman in association with the Licensed Trademarks at the
         time of such a request for the purpose of inspecting the Acquired
         Products.

                  5.2.5    Upon notice from Asyst or discovery by Entegris
         Cayman that the standards specified in Article 5.1 are not satisfied,
         Entegris Cayman shall, at Entegris Caymans' expense, promptly take any
         corrective action or destroy any Acquired Product or the packaging for
         any Acquired Product that does not satisfy the standards of Article
         5.1.

                  5.2.6    In order to promote the goodwill symbolized by each
         of the Licensed Trademarks, Entegris will insure that the goods with
         which the Licensed Trademarks are

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

         associated are continuously of the same high quality as the goods
         marketed under the Licensed Trademarks by Asyst.

                  5.2.7    Entegris shall, when requested by Asyst, make
         available to Asyst, at a time and place mutually agreed upon by
         Entegris and Asyst, a sample of each Acquired Product marketed by
         Entegris in association with the Licensed Trademarks at the time of
         such a request for the purpose of inspecting the Acquired Products.

                  5.2.8    Upon notice from Asyst or discovery by Entegris that
         the standards specified in Article 5.1 are not satisfied, Entegris
         shall, at Entegris' expense, promptly take any corrective action or
         destroy any Acquired Product or the packaging for any Acquired Product
         that does not satisfy the standards of Article 5.1.

                                A R T I C L E 6

                                ENTIRE AGREEMENT

         6.1      This Agreement along with the Exhibits to this Agreement and
the Asset Purchase Agreement constitute the entire agreement and understanding
of Asyst, Entegris Cayman, and Entegris and supersedes all prior understandings
and representations (oral or written) between the parties with respect to the
subject matter hereof. Neither this Agreement nor any subsequent agreement
amending, supplementing, or terminating this Agreement shall be binding on the
parties unless and until it has been signed by duly authorized representatives
of the Parties.

                                A R T I C L E 7

                                  MISCELLANEOUS

         7.1      DISPUTE RESOLUTION. The dispute resolution procedures of the
Asset Purchase Agreement are applicable to all disputes arising under this
Assignment.

         7.2      TRANSFERABILITY.

                  7.2.1    Entegris shall not transfer this Agreement or the
         licenses and rights granted to Entegris under this Agreement to any
         third party, by agreement, assignment, merger, asset sale,
         consolidation, operation of law, or otherwise, without the prior
         written consent of Asyst; provided, however, that Entegris may transfer
         this Agreement to a successor in ownership of all or substantially all
         of the assets of Entegris, if the successor expressly assumes in
         writing Entegris' obligations under this Agreement.

                  7.2.2    Entegris Cayman shall not transfer (a) any of the
         patents and applications assigned from Asyst to Entegris Cayman, or (b)
         this Agreement, or (c) any licenses or rights granted to Entegris
         Cayman under this Agreement to any Third Party, by agreement,
         assignment, merger, asset sale, consolidation, operation of law, or
         otherwise, without the prior written consent of Asyst; provided,
         however, that Entegris Cayman may

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

         transfer (a) the patents and applications assigned from Asyst to
         Entegris Cayman, or (b) this Agreement, or (c) any licenses or rights
         granted to Entegris Cayman under this Agreement to Entegris or a
         Subsidiary of Entegris, if Entegris or the Subsidiary expressly assumes
         in writing Entegris Cayman's obligations under this Agreement.

                  7.2.3    Entegris shall not permit any Entegris Subsidiary to
         transfer (a) any of the patents and applications assigned from Asyst to
         Entegris Cayman, or (b) this Agreement, or (c) any licenses or rights
         granted to Entegris Cayman under this Agreement to any Third Party, by
         agreement, assignment, merger, asset sale, consolidation, operation of
         law, or otherwise, without the prior written consent of Asyst;
         provided, however, that Entegris Subsidiaries may transfer (a) the
         patents and applications assigned from Asyst to Entegris Cayman, or (b)
         this Agreement, or (c) any licenses or rights granted to under this
         Agreement to Entegris or a Subsidiary of Entegris, if Entegris or the
         Subsidiary expressly assumes in writing the obligations under this
         Agreement.

                  7.2.4    Asyst shall not transfer this Agreement or the
         licenses and rights granted to Asyst under this Agreement to any third
         party, by agreement, assignment, merger, asset sale, consolidation,
         operation of law, or otherwise, without the prior written consent of
         Entegris; provided, however, that Asyst may transfer this Agreement to
         a successor in ownership of all or substantially all of the assets of
         Asyst, if the successor expressly assumes in writing Asyst's
         obligations under this Agreement.

         7.3      GUARANTEE. Entegris guarantees the performance and obligations
of Entegris Cayman under this agreement.

         7.4      CONFIDENTIALITY. The terms of this Agreement are deemed
confidential and shall not be disclosed to third parties or publicly unless
authorized in writing by all parties; except upon written agreement of the
parties or by operation of law or as required by SEC regulations. Any
information disclosed to one of the parties during the transfer and licensing of
the patents identified herein may be designated in writing by any party to be
confidential and where there is such designation said information will not be
publicly disclosed or disclosed to third parties except upon written agreement
of the parties or by operation of law or as required by SEC regulations.

         7.5      NO STRICT CONSTRUCTION. The normal rule of construction to the
effect that any ambiguities are to be resolved against the drafting Party shall
not be employed in the interpretation of this Agreement. Unless the context
clearly requires a different interpretation, words denoting the singular will
include the plural and vice versa; words denoting any gender will include all
genders; words denoting persons will include corporations, partnerships, joint
ventures, proprietorships and other business entities.

         7.6      CHOICE OF LAW. This Agreement shall be construed under, and
interpreted in accordance with, the laws of the State of Minnesota.

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COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

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COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

         7.7      EXECUTION. This Agreement may be executed in counterparts by
the Parties, each of which shall be deemed an original, and which together shall
constitute one and the same instrument, having the same force and effect as if a
single original had been executed by all the Parties.

IN WITNESS THEREOF, each of the Parties has caused this Agreement to be executed
by its duly authorized representative.

Dated: February 11, 2003           Asyst Technologies, Inc.

                                   By: /s/ Geoffrey Ribar
                                       ----------------------------
                                   Name: Geoffrey Ribar
                                   Title: Senior Vice President and
                                          Chief Financial Officer

Dated: February 11, 2003           Entegris Cayman Ltd.

                                   By: /s/ John D. Villas
                                       ----------------------------
                                   Name: John D. Villas
                                   Title: Director

Dated: February 11, 2003           Entegris, Inc.

                                   By: /s/ Michael Wright
                                       -----------------------------
                                   Name: Michael Wright
                                   Title: Chief Operating Officer

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COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                                    EXHIBIT I

SCHEDULE Ia

<TABLE>
<CAPTION>
------------------------------------------------------------------------------------------------------
PATENT
NUMBERS                              TITLE                                      ISSUE DATE/FILING DATE
------------------------------------------------------------------------------------------------------
<S>            <C>                                                              <C>
4,739,882      Container Having Disposable Liner                                    April 26, 1988
------------------------------------------------------------------------------------------------------
4,815,912      Box Door Actuated Retainer                                           March 28, 1989
               - Corresponding Patents in EP, DE, JP
------------------------------------------------------------------------------------------------------
4,995,430      Sealable Transportable Container Latch Mechanism                     February 26, 1991
               - Corresponding Patents in EP, DE, JP, SG, TW
------------------------------------------------------------------------------------------------------
5,469,963      Sealable Transportable Container Improved Liner                      November 28, 1995
               - Corresponding Patent in TW
------------------------------------------------------------------------------------------------------
5,611,452      Sealable Transportable Container Improved Liner                      March 18, 1997
------------------------------------------------------------------------------------------------------
6,042,651      Molecular Contamination Control System                               March 28, 2000
------------------------------------------------------------------------------------------------------
6,216,873      SMIF Container Including a Reticle Support Structure                 April 17, 2001
               - Foreign application pending in TW
------------------------------------------------------------------------------------------------------
6,221,163      Molecular Contamination Control System                               April 24, 2001
------------------------------------------------------------------------------------------------------
6,223,396      Pivoting Side Handles                                                May 1, 2001
------------------------------------------------------------------------------------------------------
6,319,297      Modular SMIF Pod Breather, Adsorbent, and Purge Cartridges           November 20, 2001
------------------------------------------------------------------------------------------------------
6,368,411      Molecular Contamination Control System                               April 9, 2002
------------------------------------------------------------------------------------------------------
6,398,032      SMIF Pod Including Independently Support Wafer Cassette              June 4, 2002
               - Foreign applications pending in EP, HK, JP, KR
------------------------------------------------------------------------------------------------------
               SMIF Container Including an Electrostatic Dissipative Reticle
6,513,654      Support Structure                                                    February 4, 2003
               - Corresponding PCT Application pending
------------------------------------------------------------------------------------------------------
USSN           System for Preventing Improper Insertion of FOUP Door                December 13, 2001
10/020,761     Into FOUP
------------------------------------------------------------------------------------------------------
</TABLE>

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                              EXHIBIT I, CONTINUED

SCHEDULE Ib

<TABLE>
--------------------------------------------------------------------------------------------------
<S>            <C>                                                              <C>
5,740,845      Sealable Transportable Container Having Breather Assembly        April 2, 1998
--------------------------------------------------------------------------------------------------
5,785,186      Substrate Housing and Docketing System                           July 28, 1998
               - Corresponding Patents in EP, CN, AU, JP
--------------------------------------------------------------------------------------------------
5,810,062      Two Stage Valve for Charging and/or Vacuum Relief of Pods        September 22, 1998
--------------------------------------------------------------------------------------------------
5,823,361      Substrate Support Apparatus for a Substrate Housing              October 20, 1998
--------------------------------------------------------------------------------------------------
5,853,214      Aligner for a Substrate Carrier                                  December 29, 1998
               - Corresponding Patents in JP, DE, CN, AU
--------------------------------------------------------------------------------------------------
5,984,116      Substrate Support Apparatus for a Substrate Housing              November 16, 1999
               - Corresponding Patents in AU, CN, JP, DE
--------------------------------------------------------------------------------------------------
6,187,182      Filter Cartridge Assembly for a Gas Purging System (Joint        February 13, 2001
               Ownership with Entegris)
               - Corresponding Patent in TW
               - Foreign applications pending in CA, CN, EP, JP, KR
--------------------------------------------------------------------------------------------------
</TABLE>

SCHEDULE Ic

<TABLE>
--------------------------------------------------------------------------------------------------
<S>            <C>                                                              <C>
USSN           SMIF Container with Latch Lock Mechanism                         July 10, 2001
09/902,195     - Corresponding PCT Application pending
--------------------------------------------------------------------------------------------------
USSN           Laterally Floating Latch Hub Assembly                            December 13, 2001
10/022,309     - Corresponding PCT and Taiwan Application pending
--------------------------------------------------------------------------------------------------
USSN           System for Providing Electrical Ground Path Through a            June 3, 2002
10/161,436     Port Door
--------------------------------------------------------------------------------------------------
USSN           Transportable Container Including Internal Environment           January 24, 2002
10/042,849     Monitor
               - Corresponding PCT and Taiwan Application pending
--------------------------------------------------------------------------------------------------
</TABLE>

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COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                                   EXHIBIT II

<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------------------
PATENT
NUMBERS                            TITLE                                        ISSUE DATE
-------------------------------------------------------------------------------------------------
<S>            <C>                                                              <C>
4,674,939      Sealed Standard Interface Apparatus                              June 23, 1987
               - Corresponding patents in EP, DE, JP, KR
-------------------------------------------------------------------------------------------------
5,169,272      Method and Apparatus for Transferring Articles Between Two       December 8, 1992
               Controlled Environments
               - Corresponding patents in EP, JP
-------------------------------------------------------------------------------------------------
5,370,491      Method and Apparatus for Transferring Articles Between Two       December 6, 1994
               Controlled Environments
-------------------------------------------------------------------------------------------------
5,547,328      Method and Apparatus for Transferring Articles Between Two       August 20, 1996
               Controlled Environments
-------------------------------------------------------------------------------------------------
5,834,915      Substrate Housing and Docking System                             November 10, 1998
-------------------------------------------------------------------------------------------------
5,895,191      Sealable, Transportable Container Adapted for Horizontal         April 20, 1999
               Loading and Unloading
-------------------------------------------------------------------------------------------------
</TABLE>

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[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                                   EXHIBIT III

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------
PATENT
NUMBERS                               TITLE                                         ISSUE DATE
-----------------------------------------------------------------------------------------------------
<S>            <C>                                                                 <C>
4,724,874      Sealable Transportable Container Having a Particle Filtering        February 16, 1988
               System
               - Corresponding Patents in EP, DE, JP, SG
-----------------------------------------------------------------------------------------------------
5,848,933      Docking and Environmental Purging System for Integrated Circuit     December 15, 1998
               Wafer Transport Assemblies
-----------------------------------------------------------------------------------------------------
5,879,458      Molecular Contamination Control System                              March 9, 1999
               - Corresponding Patent in SG
               - Foreign applications pending in EP, JP, KR
-----------------------------------------------------------------------------------------------------
5,988,233      Evacuation-Driven SMIF Pod Purge System                             November 23, 1999
               - Corresponding patents in EP, HK, JP, KR
-----------------------------------------------------------------------------------------------------
6,056,026      Passively Activated Valve for Carrier Purging                       May 2, 2002
               - Corresponding Patent in TW
               - Foreign applications pending in CN, EP, JP, KR
-----------------------------------------------------------------------------------------------------
6,120,371      Docking and Environmental Purging System for Integrated Circuit     September 19, 2000
               Wafer Transport Assemblies
-----------------------------------------------------------------------------------------------------
6,164,664      Kinematic Coupling Compatible Passive Interface Seal                December 26, 2000
-----------------------------------------------------------------------------------------------------
6,368,411      Molecular Contamination Control System                              April 9, 2002
-----------------------------------------------------------------------------------------------------
</TABLE>

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 16 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                                   EXHIBIT IV

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------
PATENT
NUMBERS                                TITLE                                        ISSUE DATE
-----------------------------------------------------------------------------------------------------
<S>            <C>                                                                 <C>
4,827,110      Method and Apparatus for Monitoring the Location of Wafer Disks     May 2, 1989
-----------------------------------------------------------------------------------------------------
4,833,306      Bar Code Remote Recognition System for Process Carriers of          May 23, 1989
               Wafer Disks
               - Corresponding Patents in CA, EP, DE, KR, TW
-----------------------------------------------------------------------------------------------------
4,888,473      Wafer Disk Location Monitoring System and Tagged Process            December 19, 1989
               Carriers for Use Therewith
-----------------------------------------------------------------------------------------------------
4,974,166      Processing Systems with Intelligent Article Tracking                November 27, 1990
               - Corresponding Patents in EP, DE, JP, KR, TW
-----------------------------------------------------------------------------------------------------
5,097,421*     Intelligent Wafer Carrier                                           March 17, 1992
               - Corresponding Patents in EP, DE, JP, SG
-----------------------------------------------------------------------------------------------------
5,166,884      Intelligent System for Processing and Storing Articles              November 24, 1992
               - Corresponding Patents in JP
-----------------------------------------------------------------------------------------------------
5,339,074      Very Low Frequency Tracing System                                   August 16, 1994
               - Corresponding Patents in FR, DE, IT, JP, KR
-----------------------------------------------------------------------------------------------------
5,831,738      Apparatus and Methods for Viewing Identification Marks on           November 3, 1998
               Semiconductor Wafers
               - Corresponding Patents in KR
               - Foreign application pending in JP
-----------------------------------------------------------------------------------------------------
6,473,668      Intelligent Minienvironment                                         October 29, 2002
-----------------------------------------------------------------------------------------------------
</TABLE>

* Currently in litigation with Jenoptik

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 17 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                                    Exhibit V

                                   ASSIGNMENT

         WHEREAS, Asyst Technologies, Inc., has rights and interest to a certain
patents and patent applications described as follows:

<TABLE>
<CAPTION>
--------------------------------------------------------------------------------------------------------
PATENT NUMBER /                                                                       ISSUE DATE/FILING
SERIAL NUMBER                              TITLE                                           DATE
--------------------------------------------------------------------------------------------------------
<S>                <C>                                                                <C>
  4,739,882        Container Having Disposable Liner                                  April 26, 1988
--------------------------------------------------------------------------------------------------------
  4,815,912        Box Door Actuated Retainer                                         March 28, 1989
--------------------------------------------------------------------------------------------------------
  4,995,430        Sealable Transportable Container Latch Mechanism                   February 26, 1991
--------------------------------------------------------------------------------------------------------
  5,469,963        Sealable Transportable Container Improved Liner                    November 28, 1995
--------------------------------------------------------------------------------------------------------
  5,611,452        Sealable Transportable Container Improved Liner                    March 18, 1997
--------------------------------------------------------------------------------------------------------
  6,042,651        Molecular Contamination Control System                             March 28, 2000
--------------------------------------------------------------------------------------------------------
  6,216,873        SMIF Container Including a Reticle Support Structure               April 17, 2001
--------------------------------------------------------------------------------------------------------
  6,221,163        Molecular Contamination Control System                             April 24, 2001
--------------------------------------------------------------------------------------------------------
  6,223,396        Pivoting Side Handles                                              May 1, 2001
--------------------------------------------------------------------------------------------------------
  6,319,297        Modular SMIF Pod Breather, Adsorbent, and Purge Cartridges         November 20, 2001
--------------------------------------------------------------------------------------------------------
  6,368,411        Modular Contamination Control System                               April 9, 2002
--------------------------------------------------------------------------------------------------------
  6,398,032        SMIF Pod Including Independently Support Wafer Cassette            June 4, 2002
--------------------------------------------------------------------------------------------------------
  6,513,654        SMIF Container Including an Electrostatic Dissipative Reticle      February 4, 2003
                   Support Structure
--------------------------------------------------------------------------------------------------------
  USSN             System for Preventing Improper Insertion of FOUP Door              December 13, 2001
  10/020,761       Into FOUP
--------------------------------------------------------------------------------------------------------
  5,740,845        Sealable Transportable Container Having Breather Assembly          April 2, 1998
--------------------------------------------------------------------------------------------------------
  5,785,186        Substrate Housing and Docketing System                             July 28, 1998
--------------------------------------------------------------------------------------------------------
  5,810,062        Two Stage Valve for Charging and/or Vacuum Relief of Pods          September 22, 1998
--------------------------------------------------------------------------------------------------------
  5,823,361        Substrate Support Apparatus for a Substrate Housing                October 20, 1998
--------------------------------------------------------------------------------------------------------
  5,853,214        Aligner for a Substrate Carrier                                    December 29, 1998
--------------------------------------------------------------------------------------------------------
  5,984,116        Substrate Support Apparatus for a Substrate Housing                November 16, 1999
--------------------------------------------------------------------------------------------------------
  6,187,182        Filter Cartridge Assembly for a Gas Purging System                 February 13, 2001
                   (Joint Ownership with Entegris)
--------------------------------------------------------------------------------------------------------
  USSN             SMIF Container with Latch Lock Mechanism                           July 10, 2001
  09/902,195
--------------------------------------------------------------------------------------------------------
  USSN             Laterally Floating Latch Hub Assembly                              December 13, 2001
  10/022,309
--------------------------------------------------------------------------------------------------------
  USSN             Transportable Container Including Internal Environment             January 24, 2002
  10/042,849       Monitor
--------------------------------------------------------------------------------------------------------
</TABLE>

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 18 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

An undivided fifty percent ownership interest in Application USSN 10/161,436
titled "System for Providing Electrical Ground Path Through a Port Door" filed
on June 3, 2002.

                  WHEREAS, ENTEGRIS CAYMAN LTD. is desirous of acquiring any and
all such interest in and to said patents and applications.

                  NOW, THEREFORE, Be It Known, that for good and valuable
consideration, the receipt of which is hereby acknowledged by the undersigned,
the entire rights, title and interest of said above identified patents and
applications, the inventions disclosed and claimed therein, and any renewals,
continuations, divisionals, continuation-in-parts, reissues, extensions,
substitutions, foreign or domestic counterparts thereof, including any and all
rights to apply for and obtain patents therefore in all foreign countries, is
hereby sold, assigned and transferred to ENTEGRIS CAYMAN LTD.

                  The undersigned agrees to sign such papers, testify orally and
do other things at the expense of ENTEGRIS CAYMAN LTD. or its successors or
assigns, as may be reasonably necessary for the purpose of obtaining and
enforcing the patents.

                          Signed at this 11th day of February, 2003.

                                 ASYST TECHNOLOGIES, INC.

                                 By: /s/ Geoffrey Ribar
                                     -----------------------------

                                 Printed Name: Geoffrey Ribar

                                 Its: Senior Vice President and Chief Financial
                                      Officer

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 19 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                                   Exhibit VI

                                    ROYALTIES

Asyst shall be entitled to receive certain royalties on the Net Revenues (as
defined below) as set forth below:

         VI.2(a)        The sum equal to [*]% of all Net Revenues generated in
                        the semiconductor industry by Entegris, Entegris Cayman
                        or Entegris' Subsidiaries during each year with respect
                        to (i) [*] (iii) spare and replacement parts in respect
                        of the products described in (i) and (ii) of this
                        subsection VI.2(a), for a period of five (5) years after
                        the Closing Date stated in the Asset Purchase Agreement;
                        and

         VI.2(b)        a portion of all Net Revenues generated in the
                        semiconductor industry by Entegris or Entegris'
                        Subsidiaries during each year with respect to (i) 300mm
                        FOUPs or wafer carriers or containers having
                        substantially the same structure as a 300mm FOUP and
                        used in production of semiconductors or wafers, (ii) the
                        300mm FOUPS purchased by Entegris from Asyst in the
                        semiconductor industry; and (iii) spare and replacement
                        parts in respect of the products described in (i) and
                        (ii) of this subsection VI.2(b) for a period of five (5)
                        years after the Closing Date as set forth below:

                        (i)    The sum equal to [*]% of such Net Revenues up to
                               $[*] million per annum;

                        (ii)   [*]% of such Net Revenues between $[*] million
                               and $[*] million per annum; and

                        (iii)  [*]% of such Net Revenues over $[*] million per
                               annum.

         For purposes hereof, the 300mm FOUPS and wafer carriers or containers
having substantially the same structure as a 300mm FOUP and used in production
of semiconductors or wafers for which Asyst is entitled to the above royalties
shall not include any of Entegris' current products or containers which are used
to ship wafers between facilities. [*]

         Notwithstanding the above, [*].

         VI.2(c)        The term "Net Revenues" shall mean the total sales price
                        of the particular product(s) for which customers are
                        billed or otherwise charged (including the lease or
                        consignment of product) for by Entegris in the usual
                        course of business during each fiscal year of Entegris,
                        excluding: (i) revenues received from services related
                        to the particular product(s) (including without
                        limitation cleaning services); (ii) sales taxes, excise
                        taxes and other taxes levied in respect of such sales;
                        (iii) return sales; (iv) transportation and insurance
                        costs incurred by Entegris with respect to such
                        product(s). Royalties on products

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 20 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                        discounted below [*]% of the average selling price of a
                        product on a quarterly basis will be based upon [*]% of
                        the average selling price of that product on a quarterly
                        basis. Any out-of-payment-period credit adjustments for
                        return sales or other bona fide price adjustments which
                        exceed royalties payable for any period will be accrued
                        and offset against royalties which accrue to Asyst in
                        subsequent payment periods. With respect to product(s)
                        leased or consigned by Entegris, or if the pricing of a
                        royalty-bearing product hereunder is otherwise
                        commingled with the pricing of other products and
                        services of Entegris or a wholly-owned subsidiary of
                        Entegris, then the price of the royalty-bearing products
                        for the purposes of calculating royalties shall be equal
                        to the average net sales price of all equivalent
                        products sold by the Entegris for the fiscal quarter in
                        question, without giving effect in the calculation of
                        such average to any products given away or commingled
                        with other goods and services; provided, however, that
                        the bundling of multiple royalty-bearing products
                        together without the commingling of non-royalty-bearing
                        products or services is treated as a single aggregate
                        sale and royalty is calculated based upon the aggregate
                        sale price for such products (i.e. not the average net
                        sales price of equivalent products).

         VI.2(d)        Entegris shall keep records, with respect to the sale of
                        all the products subject to royalties under this Section
                        V.2 and the selling prices thereof. Asyst shall at its
                        own expense have a right, through an independent
                        certified public accountant selected by Asyst, to
                        examine and audit, not more than once each fiscal year,
                        and during normal business hours and upon prior
                        reasonable notice, all such records and accounts as may,
                        under recognized accounting practices, contain
                        information bearing upon the amount of royalty payment
                        due to Asyst from Entegris under this Agreement.

                        If Asyst's calculation of royalties differs from
                        Entegris' calculation, Asyst may, at its option, deliver
                        a notice to Entegris disputing Entegris' calculation (a
                        "Challenge Notice") at any time, but in no event more
                        than ninety (90) days after the close of a calendar year
                        with respect to royalties accrued during that calendar
                        year. If a Challenge Notice is delivered to Entegris
                        pursuant to the preceding sentence, Asyst and Entegris
                        shall, during the thirty (30) days following such
                        delivery, use all commercially reasonable efforts to
                        reach agreement. If during such period Asyst and
                        Entegris are unable to agree regarding the disputed
                        calculation, Asyst and Entegris shall promptly
                        thereafter select an Accounting Referee (as hereinafter
                        defined) and cause such Accounting Referee to promptly
                        review this Agreement, any related agreements, all such
                        records and accounts as may, under recognized accounting
                        practices, contain information bearing upon the amount
                        of royalty payment due to Asyst from Entegris under this
                        Agreement and the respective parties' disputed
                        calculations. The Accounting Referee shall deliver to
                        Asyst and Entegris as promptly as practicable a report
                        setting forth the Accounting Referee's calculation. Such
                        report shall be final and binding upon Asyst and

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 21 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

<PAGE>

                        Entegris. The cost of such report shall be borne by (i)
                        Asyst if the Accounting Referee's calculation changes
                        royalties by less than [*] percent ([*]%) of the
                        royalties stated in the disputed Royalty Statement(s);
                        or (ii) the Entegris if the Accounting Referee's
                        calculation changes royalties by greater than [*]
                        percent ([*]%) of the royalties stated in the disputed
                        Royalty Statement(s). The "Accounting Referee" shall
                        mean a reputable firm of independent auditors of
                        national standing other than the auditors of the
                        Entegris, at or prior to the Closing Date. In any event,
                        adjustment shall be made to compensate for any errors or
                        omission disclosed by Accounting Referee's report.

         VI.2(e)        The thresholds for determining the amount of royalties
                        to be paid hereunder shall be based on a calendar year.
                        Royalties hereunder shall be remitted to Asyst quarterly
                        for royalties accrued during each preceding quarter,
                        based on Net Revenues to date for the current calendar
                        year. The Net Revenue thresholds in Section VI.2(b)
                        shall be prorated for partial years at the beginning and
                        end of the royalty term.

         VI.2(f)        Within forty-five (45) days after the end of each fiscal
                        quarter of Entegris, commencing upon the close of the
                        first fiscal quarter after the Closing Date and
                        continuing thereafter until all of the royalties payable
                        hereunder shall have been reported and paid, Entegris
                        shall furnish Asyst a statement signed by a duly
                        authorized officer of Entegris showing all products
                        subject to royalties which were sold during such quarter
                        and the prices at which they were sold, and the amount
                        of the royalty payable thereon (the "Royalty
                        Statement"). If no products subject to royalty have been
                        sold, that fact shall be set forth in such a statement.
                        The royalties stated to be payable to Asyst in the
                        Royalty Statement shall be paid within forty-five (45)
                        days after the end of that quarter in which they accrue.

         VI.2(g)        A bonus royalty of [*] percent ([*]%) on revenues
                        generated by Entegris and Entegris' Subsidiaries in
                        excess of $[*] from Entegris' current and future SMIF
                        Pods and all royalty bearing products for combined
                        calendar years 2003, 2004 and 2005. The maximum payment
                        under this section shall not exceed $[*]. For purposes
                        hereof, Asyst shall be entitled to credit for Asyst and
                        Entegris' respective sales for 2003 prior to the
                        Effective Date for the products identified in Sections
                        VI.2(a) and VI.2(b).

PATENT ASSIGNMENT AND CROSS-LICENSE AND TRADEMARK LICENSE AGREEMENT  Page - 22 -

[] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24b-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

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