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                                    10 (bbb)                          Ex 10(bbb)

                             MASTER LEASE AGREEMENT

[BANK1ONE Logo]
Banc One Leasing Corporation



THIS MASTER LEASE AGREEMENT is made, entered and dated as of February 16, 1998,
by and between:

LESSOR:                                     LESSEE:

BANC ONE LEASING CORPORATION                CERPROBE CORPORATION
1111 Polaris Parkway, Suite A-3             1150 N. FIESTA DRIVE
Columbus, Ohio 43240                        GILBERT, AZ 85233


1.   LEASE OF EQUIPMENT: Lessor leases to Lessee, and Lessee leases from
Lessor, all the property described in the Lease Schedules which are signed from
time to time by Lessor and Lessee.

2.   CERTAIN DEFINITIONS: "Schedule" means each Lease Schedule signed by Lessee
and Lessor which incorporates the terms of this Master Lease Agreement, together
with all exhibits, riders, attachments and addenda thereto. "Equipment" means
the property described in each Schedule, together with all attachments,
additions, possessions, parts, repairs, improvements, replacements and
substitutions thereto. "Lease", "herein", "hereunder", "hereof" and similar
words mean this Master Lease Agreement and all Schedules, together with all
exhibits, riders, attachments and addenda to any of the foregoing, as the same
may from time to time be amended, modified or supplemented. "Prime Rate" means
the prime rate of interest announced from time to time as the prime rate by Bank
One, Columbus, NA; provided, that the parties acknowledge that the Prime Rate is
not intended to be the lowest rate of interest charged by said bank in
connection with extensions of credit. "Lien" means any security interest, lien,
mortgage, pledge, encumbrance, judgment, execution, attachment, warrant, writ,
levy, other judicial process or claim of any nature whatsoever by or of any
person. "Fair Market Value" means the amount which would be paid for an item of
Equipment by an informed and willing buyer (other than a used equipment or scrap
dealer) and an informed and willing seller neither under a compulsion to buy or
sell. "Lessor's Cost" means the invoiced price of any item of Equipment plus any
other cost to Lessor of acquiring an item of Equipment. All items defined in the
Lease are equally applicable to both the singular and plural form of such terms.

3.   LEASE TERM AND RENT: The term of the lease of the Equipment described in
each Schedule ("Lease Term") commences on the date stated in the Schedule and
continues for the term stated therein. As rent for the Equipment described in
each Schedule, Lessee shall pay Lessor the rent payments and all other amounts
stated in such Schedule, payable on the dates specified therein. All payments
due under the Lease shall be made in United States dollars at Lessor's office
stated in the opening paragraph or as otherwise directed by Lessor in writing.

4.   ORDERING, DELIVERY, REMOVAL AND INSPECTION OF EQUIPMENT: If an event of
default occurs or if for any reason Lessee does not accept, or revokes its
acceptance of, equipment covered by a purchase order or purchase contract or if
any commitment or agreement of Lessor to lease equipment to Lessee expires,
terminates or is otherwise canceled, then automatically upon notice from Lessor,
any purchase order or purchase contract and all obligations thereunder shall be
assigned to Lessee and Lessee shall pay and perform all obligations thereunder.
Lessee agrees to pay, defend, indemnify and hold Lessor harmless from any
liabilities, obligations, claims, costs and expenses (including reasonable
attorney fees and expenses) of whatever kind imposed on or asserted against
Lessor in any way related to any purchase orders or purchase contracts. Lessee
shall make all arrangements for, and Lessee shall pay all costs of,
transportation, delivery, installation and testing of Equipment. The equipment
shall be delivered to Lessee's premises stated in the applicable Schedule and
shall not be removed without Lessor's prior written consent. Lessor has the
right upon reasonable notice to Lessee to inspect the Equipment wherever
located. Lessor may enter upon any premises where Equipment is located and
remove it immediately, without notice or liability to Lessee, upon the
expiration or other termination of the Lease Term.

5.   MAINTENANCE AND USE: Lessee agrees it will, at its sole expense: (a) repair
and maintain the Equipment in good condition and working order and supply and
install all replacement parts of other devices when required to so maintain the
Equipment or when required by applicable law or regulation, which parts or
devices shall automatically become part of the Equipment; (b) use and operate
the Equipment in a careful manner in the normal course of its business and only
for the purposes for which it was designed in accordance with the manufacturer's
warranty requirements, and comply with all laws and regulations relating to the
Equipment, and obtain all permits or licenses necessary to install, use or
operate the Equipment; and (c) make no alterations, additions, subtractions,
upgrades or improvements to the Equipment without Lessor's prior written
consent, but any such alterations, additions, upgrades or improvements shall
automatically become part of the Equipment. The Equipment will not be used or
located outside the United States.

6.   NET LEASE; NO EARLY TERMINATION: The Lease is a net lease. Lessee's
obligation to pay all rent and all other amounts payable under the Lease is
absolute and unconditional under any and all circumstances and shall not be
affected by any circumstances of any character including, without limitation,
(a) any setoff, claim, counterclaim, defense or reduction which Lessee may have
at any time against Lessor or any other party for any reason, or (b) any defect
in the condition, design or operation of, any lack of fitness for use of, any
damage to or loss of, or any lack of maintenance or service for any of the
Equipment. Each Schedule is a noncancelable lease of the Equipment described
therein and Lessee's obligation to pay rent and perform all other obligations
thereunder and under the Lease are not subject to cancellation or termination
by Lessee for any reason.

7.   NO WARRANTIES BY LESSOR: LESSOR LEASES THE EQUIPMENT AS-IS, WHERE-IS, AND
WITH ALL FAULTS. LESSOR MAKES NO WARRANTIES OR REPRESENTATION, EXPRESS OR
IMPLIED, OF ANY KIND AS TO THE EQUIPMENT INCLUDING, WITHOUT LIMITATIONS: ITS
MERCHANTABILITY; ITS FITNESS FOR ANY PARTICULAR PURPOSE; ITS DESIGN, CONDITION,
QUALITY, CAPACITY, DURABILITY, CAPABILITY, SUITABILITY OR WORKMANSHIP; ITS
NON-INTERFERENCE WITH OR NON-INFRINGEMENT OF ANY PATENT, TRADEMARK, COPYRIGHT OR
OTHER INTELLECTUAL PROPERTY RIGHT; OR ITS COMPLIANCE WITH ANY LAW, RULE,
SPECIFICATION, PURCHASE ORDER OR CONTRACT PERTAINING THERETO. Lessor hereby
assigns to Lessee the benefit of any assignable manufacturer's or supplier's
warranties, but Lessor, at Lessee's written request, will cooperate with Lessee
in pursuing any remedies Lessee may have under such warranties. Any action taken
with regard to warranty claims against any manufacturer or supplier by Lessee
will be at Lessee's sole expense. LESSOR MAKES NO REPRESENTATIONS OR WARRANTIES,
EXPRESS OR IMPLIED, OF ANY KIND AS TO THE FINANCIAL CONDITION OR FINANCIAL
STATEMENTS OF ANY PARTY OF ANY PARTY OR AS TO THE TAX OR ACCOUNTING TREATMENT OR
CONSEQUENCES OF THE LEASE, THE EQUIPMENT OR THE RENTAL PAYMENTS.

8.   INSURANCE: Lessee at its sole expense shall at all times keep each item of
Equipment insured against all risks of loss or damage from every cause
whatsoever for an amount not less than the greater of the full replacement value
or the Lessor's Cost of such item of Equipment. Lessee at its sole expense shall
at all times carry public liability and property damage insurance in amounts
satisfactory to Lessor protecting Lessee and Lessor from liabilities for
injuries to persons and damage to property of others relating in any way to the
Equipment. All insurers shall be reasonably satisfactory to Lessor, Lessee shall
deliver to Lessor satisfactory evidence of such coverage. Proceeds of any
insurance covering damage or loss of the Equipment shall be payable to Lessor as
loss Payee and shall, at Lessor's option, be applied toward (a) the replacement,
restoration or repair of the Equipment, or (b) payment of the obligations of
Lessee under the Lease. Proceeds of any public liability or property insurance
shall be payable first to Lessor as additional insured to the extent of its
liability, then to Lessee. If an event of default occurs and is continuing, or
if Lessee fails to make timely payments due under Section 9 hereof, then Lessee
automatically appoints Lessor as Lessee's attorney-in-fact with full power and
authority in the place of Lessee and in the name of Lessee or Lessor to make
claim for, receive payment of, and sign and endorse all documents, checks or
drafts for loss or damage under any such policy. Each insurance policy will
require that the insurer give Lessor at least 30 days prior written notice of
any cancellation of such policy and will require that Lessor's interests remain
insured regardless of any act, error, omission, neglect or misrepresentation of
Lessee. The insurance maintained by Lessee shall be primary without any right of
contribution from insurance which may be maintained by Lessor.

9.   LOSS AND DAMAGE: (a) Lessee bears the entire risk of loss, theft, damage
or destruction of Equipment in whole or in part from any reason whatsoever
("Casualty Loss"). No Casualty Loss to Equipment shall relieve Lessee from the
obligation to pay rent or from any other obligation under the Lease.

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9.   LOSS AND DAMAGE (CONTINUED): In the event of Casualty Loss to any item of
Equipment, Lessee shall immediately notify Lessor of the same and Lessee shall,
if so directed by Lessor, immediately repair the same. If Lessor determines that
any item of Equipment has suffered a Casualty Loss beyond repair ("Lost
Equipment"), then Lessee, at the option of Lessor, shall: (1) immediately
replace the Lost Equipment with similar equipment in good repair, condition and
working order free and clear of any Liens and deliver to Lessor a bill of sale
covering the replacement equipment, in which event such replacement equipment
shall automatically be Equipment under the Lease; or (2) On the rent payment
date which is at least 30 but no more than 60 days after the date of the
Casualty Loss, pay to Lessor all amounts then due and payable by Lessee under
the Lease for the Lost Equipment plus the Stipulated Loss Value for such Lost
Equipment as of the date of the Casualty Loss. Upon payment by Lessee of all
amounts due under the above clause (2), the lease of the Lost Equipment will
terminate and Lessor shall transfer to Lessee all of Lessor's right, title and
interest in such Equipment on an "as-is, where-is" basis with all faults,
without recourse and without representation of warranty of any kind, express or
implied.
     (b) "Stipulated Loss Value" of any item of Equipment during its Lease term
equals the present value discounted in arrears to the applicable date of the
applicable SLV Discount Rate of (1) the remaining rents and all other amounts
(including, without limitation, any balloon payment and, as to a terminal rental
adjustment clause ("TRAC") lease, the TRAC value stated in the Schedule, and any
other payments required to be paid by Lessee at the end of the applicable Lease
Term] payable under the Lease for such item on and after such date to the end at
the applicable Lease Term and (2) an amount equal to the Economic Value of the
Equipment. For any item of Equipment, "Economic Value" means the Fair Market
Value of the Equipment at the end of the applicable Lease Term as originally
anticipated by Lessor at the Commencement Date of the applicable Schedule;
provided, that Lessee agrees that such value shall be determined by the books of
Lessor as of the Commencement Date of the applicable Schedule. After the payment
of all rent due under the applicable Schedule and the expiration of the Lease
Term of any item of Equipment, the Stipulated Loss Value of such item equals the
Economic Value of such item. Stipulated Loss Value shall also include any Taxes
payable by Lessor in connection with its receipt thereof. For any item of
Equipment, "SLV Discount Rate" means an interest rate equal to the Prime Rate in
effect on the Commencement Date of the Schedule for such item minus two
percentage points.

10.  TAX BENEFITS INDEMNITY. (a) The Lease has been entered into on the basis
that Lessor shall be entitled to such deductions, credits and other tax
benefits as are provided by federal, state and local income tax law to an owner
of the Equipment (the "Tax Benefits") including, with limitation: (1) modified
accelerated cost recovery deductions on each item of Equipment under Section
168 of the Code (as defined below) in an amount determined commencing with the
taxable year in which the Commencement Date of this applicable Schedule occurs,
using the maximum allowable depreciation method available under Section 168 of
the Code, using a recovery period (as defined in Section 168 of the Code)
reasonably determined by Lessor, and using an initial adjusted basis which is
equal to the Lessor's Cost of such item; (2) amortization of the expenses paid
by Lessor in connection with the Lease on a straight-line basis over the term
of the applicable Schedule; and (3) Lessor's federal taxable income will be
subject to the maximum rate on corporations in effect under the Code as of the
Commencement Date of the applicable Schedule.
     (b) If on any one or more occasions (1) Lessor shall lose, shall not have
or shall lose the right to claim all or any part of the Tax Benefits, (2) there
shall be reduced, disallowed, recalculated or recaptured all or any part of the
Tax Benefits, or (3) all or any part of the Tax Benefits is reduced by a change
in law or regulation (each of these events described in subparagraphs 1, 2 or 3
of this paragraph (b) will be referred to as a "Tax Loss"), then, upon 30 days
written notice by Lessor to Lessee that a Tax Loss has occurred, Lessee shall
pay Lessor an amount which, in the reasonable opinion of Lessor and after the
deduction of all taxes required to be paid by Lessor with respect to the
receipt of such amount, will provide Lessor with the same after-tax net
economic yield which was originally anticipated by Lessor as of the
Commencement Date of the applicable Schedule.
     (c) A Tax Loss shall occur upon the earliest of: (1) the happening of any
event (such as disposition or change in use of an item of Equipment) which may
cause such Tax Loss; (2) Lessor's payment to the applicable taxing authority of
the tax increase resulting from such Tax Loss; or (3) the adjustment of
Lessor's tax return to reflect such Tax Loss.
     (d) Lessor shall not be entitled to payment under this section for any Tax
Loss caused solely by one or more of the following events: (1) a disqualifying
sale or disposition of an item of Equipment by Lessor prior to any default by
Lessee; (2) Lessor's failure to timely or properly claim the Tax Benefits in
Lessor's tax return; (3) a disqualifying change in the nature of Lessor's
business or liquidation thereof; (4) a foreclosure by any person holding
through Lessor a security interest on an item of Equipment which foreclosure
results solely from an act of Lessor; or (5) Lessor's failure to have
sufficient taxable income or tax liability to utilize the Tax Benefits.
     (e) "Code" shall mean the Internal Revenue Code of 1966, as amended. For
the purposes of this Section 10, the term "Lessor" shall include any affiliate
group (within the meaning of Section 1504 of the Code) of which Lessor is a
member for any year in which a consolidated income tax return in filed for such
affiliated group. Lessee's obligations under this section shall survive the
expiration, cancellation or termination of the Lease.

11.  GENERAL TAX INDEMNITY: Lessee will pay, and will defend, indemnify and hold
harmless on an after-tax basis from, any and all Taxes (as defined below) and
related audit and contest expenses on or relating to (a) any of the Equipment,
(b) the Lease, (c) purchase, acceptance, ownership, lease, possession, use,
operation, transportation, return or other disposition of any of the Equipment,
and (d) rentals or earnings relating to any of the Equipment or the Lease.
"Taxes" means present and future taxes or other governmental charges that are
not based on the net income of Lessor, whether they are assessed to or payable
by Lessee or Lessor, including, with limitation (l) sales, use, excise,
licensing, registration, titling, franchise, business and occupation, gross
receipts, stamp and personal property taxes, (ii) levies, imposts, duties,
assessments, charges and withholdings, (iii) penalties, fines, and additions to
tax and (iv) interest on any of the foregoing. Unless Lessor elects otherwise,
Lessor will prepare and file all reports and returns relating to any Taxes and
will pay all Taxes to the appropriate taxing authority. Lessee will reimburse
Lessor for all such payments promptly on request. On or after any applicable
assessment/levy/lien date for any personal property Taxes relating to any
Equipment, Lessee agrees that upon Lessor's request Lessee shall pay to Lessor
the personal property Taxes which Lessor reasonably anticipates will be due,
assessed, levied or otherwise imposed on any Equipment during its Lease Term. If
Lessor elects in writing, Lessee will itself prepare and file all such reports
and returns, pay all such Taxes directly to the taxing authority, and send
Lessor evidence thereof. Lessee's obligations under this section shall survive
the expiration, cancellation or termination of the Lease.

12.  GENERAL INDEMNITY: Lessee assumes all risk and liability for, and shall
defend, indemnify and keep Lessor harmless on an after-tax basis from, any and
all liabilities, obligations, losses, damages, penalties, claims, actions,
suits, costs and expenses, including reasonable attorney fees and expenses, of
whatsoever kind and nature imposed on, incurred by or asserted against Lessor,
in any way relating to or arising out of the manufacture, purchase, acceptance,
rejection, ownership, possession, use, selection, delivery, lease, operation,
condition, sale, return or other disposition of the Equipment or any part
thereof (including, without limitation, any claim for latent or other defects,
whether or not discoverable by Lessee or any other person, any claim for
negligence, tort or strict liability, any claim under any environmental
protection or hazardous waste law and any claim for patent, trademark or
copyright infringement). Lessee will not indemnify Lessor under this section for
loss or liability arising from the events which occur after the Equipment has
been returned to Lessor or for loss or liability caused directly and solely by
the gross negligence of willful misconduct of Lessor. In this section, "Lessor"
also includes any director, officer, employee, agent, successor or assign of
Lessor. Lessee's obligations under this section shall survive the expiration,
cancellation or termination of the Lease.

13.  PERSONAL PROPERTY:  Lessee represents and agrees that the Equipment is,
and shall at all times remain, separately identifiable personal property. Upon
Lessor's request, Lessee shall furnish Lessor a landlord's and/or mortgagee's
waiver and consent to remove all Equipment. Lessor may display notice of its
interest in the Equipment by any reasonable identification. Lessee shall not
alter or deface any such indicia of Lessor interest.

14.  DEFAULT:  Each of the following events shall constitute an event of default
under the Lease: (a) Lessee fails to pay any rent or other amount due under the
Lease within ten days of its due date; or (b) Lessee fails to perform or observe
any of its obligations in Section 8, 18, or 22 hereof; or (c) Lessee fails to
perform or observe any of its other obligations in the Lease for more than 30
days after Lessor notifies Lessee of such failure; or (d) Lessee or any Lessee
affiliate defaults in the payment, performance or observance of any obligation
under any loan, credit agreement or other lease in which Lessor or any
subsidiary (direct or indirect) of Banc One Corporation (which is Lessor's
ultimate parent corporation) is the creditor or lessor; or (e) any settlement,
representation or warranty made by Lessee in the Lease, in any Schedule or in
any document, certificate or financial statement in connection with the Lease
proves at any time to have been untrue or misleading in any material respect as
of the time when made; or (f) Lessee becomes insolvent or bankrupt, or Lessee
admits its inability to pay its debts as they mature, or Lessee makes an
assignment for the benefit of creditors, or Lessee applies for, institutes or
consents to the appointment of a receiver, trustee or similar official for
Lessee or any substantial part of its property or any such official is appointed
without Lessee's consent, or Lessee applies for, institutes or consents to any
bankruptcy, insolvency, reorganization, debt moratorium, liquidation, or similar
proceeding relating to Lessee or any substantial part of its property under the
laws of any jurisdiction or any such proceeding is instituted against Lessee
without stay or dismissal for more than 30 days, or Lessee commences any act
amounting to a business failure or a winding up of its affairs, or Lessee ceases
to do business as a going concern; or (g) with respect to any guaranty, letter
of credit, pledge agreement, security agreement, mortgage, deed of trust, debt
subordination agreement or other credit enhancement or credit support agreement
(whether now existing or hereafter arising) signed or issued by any party in
connection with all or any part of Lessee's obligations under the Lease, the
party signing or issuing any such agreement defaults in its obligations
thereunder or any such agreement shall cease to be in full force and effect or
shall be declared to be null, void, invalid or unenforceable by the party
signing or issuing it; or (h) there shall occur in Lessor's reasonable opinion
any material adverse change in the financial condition, business or operations
of Lessee.



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14. DEFAULT: (CONTINUED):

As used in this section 14, the term "Lessee" also includes any guarantor
(whether now existing or hereafter arising) of all or any part of Lessee's
obligations under the Lease and/or any issuer of a letter of credit (whether no
existing or hereafter arising) relating to all or any part of Lessee's
obligations under the Lease, and the term "Lease" also includes any guaranty or
letter of credit (whether now existing or hereafter arising) relating to all or
any part of Lessee's obligations under the Lease.

15. REMEDIES. If any event of default exists, Lessor may exercise in any order
one or more of the remedies described in the lettered subparagraphs of this
section, and Lessee shall perform its obligations imposed thereby:

  (a) Lessor may require Lessee to return any or all Equipment as provided in
the Lease.

  (b) Lessor or its agent may repossess any or all Equipment wherever found,
may enter the premises where the Equipment is located and disconnect, render
unusable and remove it, and may use such premises without charge to store or
show the Equipment for sale.

  (c) Lessor may sell any or all Equipment at public or private sale, with or
without advertisement or publication, may re-lease or otherwise dispose of it
or may use, hold or keep it.

  (d) Lessor may require Lessee to pay to Lessor on a date specified by Lessor
with respect to any or all Equipment (i) all accrued and unpaid rent, late
charges and other amounts due under the Lease on or before such date, plus (ii)
as liquidated damages for loss of a bargain and not as a penalty, and in lieu of
any further payments of rent, the Stipulated Loss Value of the Equipment on
such date, plus (iii) interest at the Overdue Rate on the total of the
foregoing ("Overdue Rate" means an interest rate per annum equal to the higher
of 18% or 2% over the Prime Rate, but not to exceed the highest rate permitted
by applicable law). The parties acknowledge that the foregoing money damage
calculation reasonably reflects Lessor's anticipated loss with respect to the
Equipment and the related Lease resulting from the event of default. If an
event of default under section 14(f) of this Master Lease Agreement exists,
then Lessee will be automatically liable to pay Lessor the foregoing amounts
as of the next rent payment date unless Lessor otherwise elects in writing.

  (e) Lessee shall pay all costs, expenses and damages incurred by Lessor
because of the event of default or its actions under this section, including,
without limitation any collection agency and/or attorney fees and expenses, any
costs related to the repossession, safekeeping, storage, repair, reconditioning
or disposition of the Equipment and any incidental and consequential damages.

  (f) Lessor may terminate the Lease and/or any or all Schedules, may sue to
enforce Lessee's performance of the obligations under the Lessee an/or may
exercise any other right or remedy then available to Lessor at law or in equity.

     Lessor is not required to take any legal process or give Lessee any notice
before exercising any of the above remedies. None of the above remedies is
exclusive, but each is cumulative and in addition to any other remedy available
to Lessor. Lessor's exercise of one or more remedies shall not preclude its
exercise of any other remedy. No action taken by Lessor shall release Lessee
from any of its obligations to Lessor. No delay or failure on the part of
Lessor to exercise any right hereunder shall operate as a waiver thereof, nor
as an acquiescence in any default, nor shall any single or partial exercise
of any right preclude any other exercise thereof or the exercise of any other
right. After any default, Lessor's acceptance of any payment by Lessee under
the Lease shall not constitute a waiver by Lessor of such default, regardless
of Lessor's knowledge or lack of knowledge at the time of such payment, and
shall not constitute a reinstatement of the Lease if the Lease has been
declared in default by Lessor, unless Lessor has agreed in writing to reinstate
the Lease and to waive the default.

     If Lessor actually repossesses any Equipment, then it will use
commercially reasonable efforts under the then current circumstances to attempt
to mitigate its damages; provided, that Lessor shall not be required to sell,
re-lease or otherwise dispose of any Equipment prior to Lessor enforcing any of
the remedies described above. Lessor may sell or re-lease the Equipment in any
manner it chooses, free and clear of any claims or rights of Lessee and without
any duty to account to Lessee with respect therein except as provided below.
If Lessor actually sells or re-leases the Equipment, it will credit the net
proceeds of any sale of the Equipment, or the net present value (discounted at
the then current Prime Rate) of the rents payable under any new lease of the
Equipment, against and up to (but not exceeding) the Stipulated Loss Value of
the Equipment and any other amounts Lessee owes Lessor, or will reimburse
Lessee for and up to (but not exceeding) Lessee's payment thereof. The term
"net" as used above shall mean such amount after deducting the costs and
expenses described in clause (a) above of this section. If Lessor elects in
writing not to sell or re-lease any Equipment, it will similarly credit or
reimburse Lessee for Lessor's reasonable estimate of such Equipment's Fair
Market Value.

16. LESSOR'S RIGHT TO PERFORM: If Lessee fails to make any payment under the
Lease or fails to perform any of the other agreements in the Lease (including,
without limitation, its agreement to provide insurance coverage as stated in
the Lease), Lessor may itself make such payment or perform such agreement, and
the amount of such payment and the amount of the expenses of Lessor incurred in
connection with such payment or performance shall be deemed to be additional
rent, payable by Lessee on demand.

17. FINANCIAL REPORTS: Lessee agrees to furnish to Lessor: (a) annual financial
statements setting forth the financial condition and results of operation of
Lessee (financial statements shall include the balance sheet, income statement
and changes in financial position and all notes thereto) within 120 days of the
end of each fiscal year of Lessee; (b) quarterly financial statements setting
forth the financial condition and results of operation of Lessee within 60 days
of the end of each of the first three fiscal quarters of Lessee; and (c) such
other financial information as Lessor may from time to time reasonably request
including, without limitation, financial reports filed by Lessee with federal or
state regulatory agencies. All such financial information shall be prepared in
accordance with generally accepted accounting principles. If Lessee fails to
furnish the annual financial statements to Lessor within 30 days of Lessor's
written request, then Lessor may, at its option, charge Lessee a non-performance
fee equal to all of the rentals due under the Lease for the then current month
(unless otherwise prohibited by law) and such fees shall be deemed to be
additional rent, payable by Lessee on demand.

18. NO CHANGES IN LESSEE: Lessee shall not: (a) liquidate, dissolve or suspend
business; (b) sell, transfer or otherwise dispose of all or a majority of its
assets, except that Lessee may sell its inventory in the ordinary course of its
business; (c) enter into any merger, consolidation or similar reorganization
unless it is the surviving corporation; (d) transfer all or any substantial
part of its operations or assets outside of the United States of America; or
(e) without 30 days advance written notice to Lessor, change its name or chief
place of business. Lessee shall at all times maintain a tangible net worth
which is no less than the greater of 75% of its tangible net worth as of the
date of the Master Lease Agreement or 75% of its highest tangible net worth
thereafter.

19. LATE CHARGES: If any rent or other amount payable under the Lease is not
paid when due, then as compensation for the administration and enforcement of
Lessee's obligation to make timely payments, Lessee shall pay with respect to
each overdue payment on demand an amount equal to the greater of fifteen
dollars ($15.00) or five percent (5%) of each overdue payment (but not to
exceed the highest late charge permitted by applicable law) plus any collection
agency and fees and expenses.

20. NOTICES; POWER OF ATTORNEY: (a) Service of all notices under the Lease shall
be sufficient if given personally or couriered or mailed to the party involved
at its respective address set forth herein or at such other address as such
party may provide in writing from time to time. Any such notice mailed to such
address shall be effective three days after deposit in the United States mail
with postage prepaid. (b) With respect to any power of attorney covered by the
Lease, the powers conferred on Lessor thereby; are powers coupled with an
interest; are irrevocable; are solely to protect Lessor's interests under the
Lease; and do not impose any duty on Lessor to exercise such powers. Lessor
shall be accountable solely for amounts it actually receives as a result of its
exercise of such powers.

21. ASSIGNMENT BY LESSOR: Lessor and any assignee of Lessor, with or without
notice to or consent of Lessee, may sell, assign, transfer or grant a security
interest in all or any part of Lessor's rights, obligations, title or interest
in the Equipment, the Lease, any Schedule of the amounts payable under the Lease
or any Schedule to any entity ("transferee"). the transferee shall succeed to
all of Lessor's rights in respect to the Lease (including, without limitation,
all rights to insurance and indemnity protection described in the Lease). Lessee
agrees to sign any acknowledgement and other documents reasonably requested by
Lessor or the transferee in connection with any such transfer transaction.
Lessee, upon receiving notice of any such transfer transaction, shall comply
with the terms and conditions thereof. Lessee agrees that it shall not assert
against any transferee any claim, defense, setoff, deduction or counterclaim
which Lessee may now or hereafter be entitled to assert against lessor. Unless
otherwise agreed in writing, the transfer transaction shall not relieve Lessor
of any of its obligations to Lessee under the Lease and Lessee agrees that the
transfer transaction shall not be construed as being an assumption of such
obligations by the transferee.

22. NO ASSIGNMENT, SUBLEASE OR LIEN BY LESSEE: LESSEE SHALL NOT, DIRECTLY OR
INDIRECTLY, (a) MORTGAGE, ASSIGN, SELL, TRANSFER, OR OTHERWISE DISPOSE OF THE
LEASE OR ANY INTEREST THEREIN OR THE EQUIPMENT OR ANY PART THEREOF, OR (b)
SUBLEASE, RENT, LEND OR TRANSFER POSSESSION OR USE OF THE EQUIPMENT OR ANY
PART THEREFOR TO ANY PARTY, OR (c) CREATE, INCUR GRANT, ASSUME OR ALLOW TO
EXIST ANY LIEN ON THE LEASE, ANY SCHEDULE, THE EQUIPMENT OR ANY PART THEREOF.


                                  Page 3 of 4
<PAGE>   4
23.  EXPIRATION OF LEASE TERM: (a) At least 90 days (or earlier if otherwise
specified), but no more than 270 days prior to expiration of the Lease Term of
each Schedule, Lessee shall give Lessor written notice of its electing one of
the following options for all (but not less than all) of the Equipment covered
by such Schedule; return the Equipment under clause (b) below, or purchase the
Equipment under clause (c) below. The election of an option shall be
irrevocable. If Lessee fails to give timely notice of its election, it shall be
deemed to have elected to return the Equipment.

   (b) If Lessee elects or is deemed to have elected to return the Equipment at
the expiration of the Lease Term of a Schedule or if Lessee is obligated at any
time to return the Equipment, then Lessee shall, at its sole expense and risk,
deinstall, disassemble, pack, crate, insure and return the Equipment to Lessor
(all in accordance with applicable industry standards) at any location in the
continental United States of America selected by Lessor. The Equipment shall be
in the same condition as when received by Lessee, reasonable wear, tear and
depreciation resulting from normal and proper use excepted (or, if applicable,
in the condition set forth in the Lease or the Schedule), shall be in good
operating order and maintenance as required by the Lease, shall be certified as
being eligible for any available manufacturer's maintenance program, shall be
free and clear of any Liens as required by the Lease, shall comply with all
applicable laws and regulations and shall include all manuals, specifications,
repair and maintenance records and similar documents. Until Equipment is
returned as required above, all terms of the Lease shall remain in full force
and effect including, without limitation, obligations to pay rent and insure the
Equipment; provided, that after the expiration of any Schedule and before Lessee
has completed its return of the Equipment or its purchase option (if elected),
the term of the lease of the Equipment covered by such Schedule shall be
month-to-month or such shorter period as may be specified by Lessor.

   (c) If Lessee gives Lessor timely notice of its election to purchase
Equipment, then on the expiration date of the applicable Schedule Lessee shall
purchase all (but not less than all) of the Equipment and shall pay to Lessor
the Fair Market Value of the Equipment plus all Taxes (other than income taxes
on Lessor's gains on such sale), costs and expenses incurred or paid by Lessor
in connection with such sale plus all accrued but unpaid amounts due with
respect to the Equipment and/or the Schedule. The Stipulated Loss Value or
Economic Value of any item of Equipment shall have no bearing or influence on
the determination of Fair Market Value under this clause (c). Upon payment in
full of the above amounts, and if no default has occurred and is continuing
under the Lease, Lessor shall transfer title to such Equipment to Lessee "as-is,
where-is" with all faults and without recourse to Lessor and without any
representation or warranty of any kind whatsoever by Lessor, express or implied.

   (d) For purposes of the purchase option of the Lease, the determination of
the Fair Market Value of any Equipment shall be determined (1) without
deducting any costs of dismantling or removal from the location of use, (2) on
the assumption that the Equipment is in the condition required by the
applicable return and maintenance provisions of the Lease and is free and clear
of any Liens as required by the Lease, and (3) shall be determined by mutual
agreement of Lessee and Lessor or, if Lessor and Lessee are not able to agree
on such value, by the Appraisal Procedure. "Appraisal Procedure" means the
determination of Fair Market Value by an independent appraiser acceptable to
Lessor and Lessee, or, if the parties are unable to agree on an acceptable
appraiser, by averaging the valuation (disregarding the one which differs the
most from the other two) of three independent appraisers, the first appointed
by Lessor, the second appointed by Lessee and the third appointed by the first
two appraisers. For purposes of the "Remedies" section of the Lease, the Fair
Market Value shall be determined by Lessor in good faith and any such valuation
shall be on an "as-is, where-is" basis without regard to the first sentence of
this clause (d). Lessee, at its sole expense, shall pay all fees, costs and
expenses of the above described appraisers.

24.  GOVERNING LAW: THE INTERPRETATION, CONSTRUCTION AND VALIDITY OF THE LEASE
SHALL BE GOVERNED BY THE LAWS OF THE STATE OF OHIO. WITH RESPECT TO ANY ACTION
BROUGHT BY LESSOR AGAINST LESSEE TO ENFORCE ANY TERM OF THE LEASE, LESSEE
HEREBY IRREVOCABLY CONSENTS TO THE JURISDICTION AND VENUE OF ANY STATE OR
FEDERAL COURT IN THE FRANKLIN COUNTY, OHIO, WHERE LESSOR HAS ITS PRINCIPAL
PLACE OF BUSINESS AND WHERE PAYMENTS ARE TO BE MADE BY LESSEE.

25.  MISCELLANEOUS: (a) Subject to the limitations herein, the Lease shall be
binding upon and inure to the benefit of the partes hereto and their respective
heirs, administrators, successors and assigns. (b) This Master Lease Agreement
and each Schedule may be executed in any number of counterparts, which together
shall constitute a single instrument. Only one counterpart of each Schedule
shall be marked "Lessor's Original" and all other counterparts shall be marked
"Duplicate". A security interest in any Schedule may be created through transfer
and possession only of the counterpart marked "Lessor's Original". (c) Section
and paragraph headings in this Master Lease Agreement and the Schedules are for
convenience only and have no independent meaning. (d) The terms of the Lease
shall be severable and if any term thereof is declared unconscionable, invalid,
illegal or void, in whole or in part, the decision so holding shall not be
construed as impairing the other terms of the Lease and the Lease shall continue
in full force and effect as if such invalid, illegal, void or unconscionable
term were not originally included herein. (e) All indemnity obligations of
Lessee under the Lease and all rights, benefits and protections provided by
Lessor by warranty disclaimers shall survive the cancellation, expiration or
termination of the Lease. (f) Lessor shall not be liable to Lessee for any
indirect, consequential or special damages for any reason whatsoever. (g) Each
payment made by Lessee shall be applied by Lessor in such manner as Lessor
determines in its discretion which may include, without limitation, application
as follows: first, to accrued late charges; second, to accrued rent; and third,
the balance to any other amounts then due and payable by Lessee under the Lease.
(h) If the Lease is signed by more than one Lessee, each of such Lessees shall
be jointly and severally liable for payment and performance of all of Lessee's
obligations under the Lease.

26.  ENTIRE AGREEMENT: THE LEASE REPRESENTS THE FINAL, COMPLETE AND ENTIRE
AGREEMENT BETWEEN THE PARTIES HERETO. THERE ARE NO ORAL OR UNWRITTEN AGREEMENTS
OR UNDERSTANDINGS AFFECTING THE LEASE OR THE EQUIPMENT. Lessee agrees that
Lessor is not the agent of any manufacturer or supplier, that no manufacturer
or supplier is an agent of Lessor, and that any representation, warranty or
agreement made by a manufacturer, supplier or their employees, sales
representatives or agents shall not be binding on Lessor.

27.  JURY WAIVER: ALL PARTIES TO THIS MASTER LEASE AGREEMENT WAIVE ALL RIGHTS
TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM BROUGHT BY ANY PARTY
AGAINST ANY OTHER PARTY ON ANY MATTER WHATSOEVER ARISING OUT OF, IN CONNECTION
WITH OR IN ANY WAY RELATED TO THIS MASTER LEASE AGREEMENT.

BANC ONE LEASING CORPORATION                 CERPROBE CORPORATION
                                       ---------------------------------
                                             (Name of Lessee)


Lessor

By: /s/ Clive R. Camlin                 By: /s/ Randal L. Buness
   ------------------------                ----------------------------
Title: Funding Authority                Title: Vice President and
                                               Chief Financial Officer
      ---------------------                   -------------------------
                                        Lease Witness: /s/ Laura M. Back
                                                      -----------------

                                        (SEAL)    OFFICIAL SEAL
                                                  LAURA M. BACK
                                          Notary Public-State of Arizona
                                                 MARICOPA COUNTY
                                          My Comm. Expires July 14, 2001

Regardless of any prior, present or future oral agreement or course of dealing,
no term or condition of the Lease may be amended, modified, waived, discharged,
cancelled or terminated except by a written instrument signed by the party to
be bound; except Lessee authorizes Lessor to complete the Acceptance Date of
each Schedule and the serial numbers of any Equipment.

     CERPROBE CORPORATION
-------------------------------
       (Name of Lessee)

By: /s/ Randal L. Buness
   ----------------------------
Title: Vice President and
       Chief Financial Officer
      -------------------------

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