Document:

Amended and Restated Exempt Employee Letter Agreement - Hing Chu

 EXHIBIT 10.21 
 ATHEROS COMMUNICATIONS, INC. 
 AMENDED AND RESTATED EXEMPT EMPLOYEE LETTER AGREEMENT

 May 8, 2001 
 Mr. Hing Chu 
 Dear Mr. Chu: 
 On behalf of Atheros Communications, Inc., a Delaware
corporation (the “Company”), I am pleased to extend you an offer to join the Company. This letter sets forth the basic terms and conditions of your employment with the Company. This Amended and Restated Exempt Employee Letter Agreement
(this “Agreement”) will amend and restate the Exempt Employee Letter Agreement dated as of April 24, 2001 (the “Original Offer Letter”) in its entirety to read as set forth herein. We would like you to begin your employment
with the Company on or before May 24, 2001. By signing this letter, you will be agreeing to these terms. It is important that you understand clearly both what your benefits are and what is expected of you by the Company. 
  

	1.	Salary. You will be paid an annual base salary of $170,000, less regular payroll deductions, which covers all hours worked. Generally, your salary will be reviewed annually
but the Company reserves the right to change your compensation from time to time on reasonable notice. 

  

	2.	Stock Option. You will receive an option to purchase 105,000 shares of the common stock of the Company. The option will vest as to 12/48ths of the shares on the first
anniversary of your hire date and 1/48th of the shares each full month thereafter. 

  

	3.	Severance Benefits. If you are terminated without Cause (as defined below), you (i) will receive an additional six months of base salary payable over a period of six
(6) months; provided that as a condition to such additional six months of base salary, you shall execute an agreement in a form acceptable to the Company providing for a full release of any and all claims you may have against the Company, its
officers, directors, stockholders and agents. For purposes of this Agreement, “Cause” means (i) gross negligence or willful misconduct in the performance of your duties to the Company, where such gross negligence or willful misconduct
has resulted or is likely to result in substantial and material damage to the Company; (ii) a material and willful violation of any federal or state law that has resulted or is likely to result in substantial and material damage to the Company;
(iii) commission of any act of fraud with respect to the Company; (v) conviction of a felony or a crime involving moral turpitude causing material harm to the standing and reputation of the Company; or (vi) a material, noncurable
breach by you of the provisions of your non-disclosure or proprietary inventions agreement with the Company, in each case as determined in good faith by the Board of Directors of the Company. 

  

	4.	Duties. Your job title will be Director of Product & Test Engineering. Your duties generally will include responsibility for ATE strategy and test program
development, managing all aspects of product characterization, qualification of process, package and product, production release, yield improvement and cost reduction, failure analysis and customer support. You may be assigned other duties as needed
and your duties may change from time to time on reasonable notice, based on the needs of the Company and your skills, as determined by the Company. 

  

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 As an exempt employee, you are required to exercise your specialized expertise, independent judgment and
discretion to provide high-quality services. You are required to follow office policies and procedures adopted from time to time by the Company and to take such general direction as you may be given from time to time by your superiors. The Company
reserves the right to change these policies and procedures at any time. (Also see Adjustments and Changes in Employment Status). You are required to devote your full energies, efforts and abilities to your employment, unless The Company expressly
agrees otherwise. You are not permitted to engage in any business activity that competes with the Company. 
  

	5.	Hours of work. As an exempt employee, you are expected to work the number of hours required to get the job done. However, you are generally expected to be present during
normal working hours of the Company. Normal working hours will be established by the Company and may be changed as needed to meet the needs of the business. 

  

	6.	Adjustments and Changes in Employment Status. You understand that the Company reserves the right to make personnel decisions regarding your employment, including but not
limited to decisions regarding any promotion, salary adjustment, transfer or disciplinary action, up to and including termination, consistent with the needs of the business. 

  

	7.	Proprietary Information Agreement. You will be required to sign and abide by the terms of the enclosed proprietary information agreement, which is incorporated into this
agreement by reference as Exhibit A. 

  

	8.	Immigration Documentation. Please be advised that your employment is contingent on your ability to prove your identity and authorization to work in the U.S. for the Company.
You must comply with the Immigration and Naturalization Service’s employment verification requirements. 

  

	9.	Representation and Warranty of Employee. You represent and warrant to the Company that the performance of your duties will not violate any agreements with or trade secrets of
any other person or entity. 

  

	10.	Employee Benefits. You will be eligible for paid vacation, sick leave and holidays. You will be provided with health insurance benefits and dental insurance benefits, as
provided in our benefit plans. These benefits may change from time to time. You will be covered by workers’ compensation insurance and State Disability Insurance, as required by state law. 

  

	11.	Term of Employment. Your employment with the Company is “at-will.” In other words, either you or the Company can terminate your employment at any time for any
reason, with or without cause and with or without notice. Termination for cause requires no notice and no pay. 

  

	12.	Dispute Resolution Procedure. I agree that prior to my employment with the Company, I must sign and agree to the Arbitration Agreement attached as Exhibit B to this
Agreement. 

  

	13.	Integrated Agreement. Please note that this Agreement, along with the attached Employee’s Proprietary Information and Inventions Agreement (Exhibit A) and the
Arbitration Agreement (Exhibit B), supersedes any prior agreements, representations or promises of any kind, whether written, oral, express or implied between the parties hereto with respect to the subject matters herein. This Agreement constitutes
the full, complete and exclusive agreement between you and the Company with respect to the subject matters herein. This agreement cannot be changed unless in writing, signed by you and the Vice President of Administration and Controller.
Furthermore, you hereby acknowledge that this Agreement supercedes and replaces in its entirety the Original Offer Letter. 

  

	14.	Severability. If any term of this Agreement is held to be invalid, void or unenforceable, the remainder of this Agreement shall remain in full force and effect and shall in
no way be affected; and, the parties shall use their best efforts to find an alternative way to achieve the same result. 

  

	15.	 Confidentiality. You understand and agree that the terms and contents of this Agreement, and the contents of the negotiations and discussions resulting in
this Agreement, shall be maintained as confidential by you and, without limitation, by your respective agents, representatives, successors or assigns, and none of the above shall be disclosed 

  

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except to the extent required by federal or state law, or as otherwise agreed to in writing by you and the Company; provided, however, that nothing herein
shall prevent you from providing information to your respective accountants, auditors, investment advisors or attorneys, each of whom have a professional responsibility to maintain such information as confidential. 

 We look forward to your joining our organization. In order to confirm your agreement with and acceptance of these terms, please sign one copy of this
letter and return it to me. The other copy is for your records. If there is any matter in this letter which you wish to discuss further, please do not hesitate to speak to me. 
  

			
	 Very truly yours,
  
 ATHEROS COMMUNICATIONS, INC.

		
	By:	 	/s/ David Torre
	Title:	 	VP Administration & Controller

 I agree to the terms of employment set forth in this Agreement. 
  

							
				
	 /s/ Hing Chu
	 		 	5/8/2001	 	 
	Hing Chu	 		 	Date	 	

  

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 EXHIBIT A 
 EMPLOYEE’S PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT 
  

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 EXHIBIT B 
 ARBITRATION AGREEMENT 
  

	1.	To the maximum extent permitted by law, I, Hing Chu, and Atheros Communications, Inc. (“the Company”), agree that, except as noted below, any controversy, claim or dispute
arising out of or related to my employment or the termination thereof (“claims”) shall be arbitrated in accordance with the following procedure: 

  

	 	(a)	Any and all claims shall be submitted to final and binding arbitration before the American Arbitration Association (“AAA”) in the city closest to my place of work at the
Company where the AAA has an office. Such arbitration shall be in accordance with the AAA’s then current version of the National Rules for the Resolution of Employment Disputes. The arbitrator shall be selected in accordance with the AAA’s
selection procedures in effect at the time. Either party may initiate arbitration proceedings by filing a demand for arbitration with the AAA in the city closest to my place of work at the Company where AAA has an office. 

 

	 	(b)	The arbitrator shall have the authority to grant any relief authorized by law. 

  

	 	(c)	The arbitrator shall have exclusive authority to resolve all claims covered by this arbitration agreement, and any dispute relating to the interpretation, applicability,
enforceability or formation of this arbitration agreement, including, but not limited to, any claim that all or any part of this arbitration agreement is void or voidable. Any issues involving the arbitrability of a dispute shall be governed by the
Federal Arbitration Act, 9 U.S.C. § 1 et seq. 

  

	 	(d)	The Company will pay all arbitration fees, deposits and administrative costs assessed by the AAA; except that I may be required to pay administrative fees to the AAA not to exceed
the amount of the then-current filing fee for a civil action filed in the court of general jurisdiction in the state where I was last employed by the Company. The arbitrator shall have power to award attorneys’ fees, expert witness fees and
costs according to statute, or according to a separate written agreement between the parties, or the National Rules for the Resolution of Employment Disputes of the AAA, but shall have no other power to award attorneys’ fees, costs or expert
witness fees. 

  

	 	(e)	The claims covered by the above include, but are not limited to, claims for wrongful termination, unpaid wages or compensation, breach of contract, torts, violation of public
policy, claims for harassment or discrimination (including, but not limited to, race, sex, religion, national origin, age, marital status, medical condition, disability, or sexual orientation), claims for benefits (except where an employee benefit
or pension plan specifies a procedure for resolving claims different from this one), claims for physical or mental harm or distress, or any other employment-related claims under any federal, state or other governmental law, statute, regulation or
ordinance, including, but not limited to, Title VII of the Civil Rights Act of 1965, the Americans With Disabilities Act, the Age Discrimination in Employment Act, the California Fair Employment and Housing Act, and any other statutes or laws
relating to an employee’s relationship with the employer, and claims related to the Employee’s Proprietary Information and Inventions Agreement executed by me, a copy of which is attached hereto as Exhibit A. However, claims for
workers’ compensation benefits and unemployment compensation benefits are not covered by this arbitration agreement, and such claims may be presented to the appropriate court or government agency. 

  

	 	(f)	Notwithstanding this agreement to arbitrate, neither party waives the right to seek through judicial process, preliminary injunctive relief to preserve the status quo or prevent
irreparable injury before the matter can be heard in arbitration. 

  

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	 	(g)	The arbitrator shall issue a written arbitration decision stating the arbitrator’s essential findings and conclusions upon which any award is based. A party’s right for
review of the decision is limited to grounds provided under applicable law. 

  

	 	(h)	The parties agree that the arbitration shall be final and binding and any arbitration award shall be enforceable in any court having jurisdiction to enforce this arbitration
agreement. 

  

	2.	BY AGREEING TO THIS BINDING ARBITRATION PROVISION, BOTH THE COMPANY AND I GIVE UP ALL RIGHTS TO TRIAL BY JURY, EXCEPT AS EXPRESSLY PROVIDED HEREIN. 

 

	3.	I agree that this agreement to arbitrate shall survive the termination of my employment. 

  

	4.	This is the complete agreement between me and the Company on the subject of arbitration of disputes. This agreement supersedes any prior or contemporaneous oral or written
understanding on the subject. This agreement cannot be changed unless in writing, signed by me and the Vice President of Administration and Controller of the Company. 

  

					
	AGREED TO AND ACCEPTED:	 		 	
			
	/s/ Hing Chu	 		 	Dated: 5/8/2001
	Hing Chu	 		 	
			
	/s/ David Torre	 		 	Dated: May 8, 2001
	David Torre	 		 	

 Vice President of Administration and Controller 
 Atheros Communications, Inc. 
  

 6Severance and Change in Control Agreement - Hing Chu

 EXHIBIT 10.22 
 SEVERANCE AND CHANGE IN CONTROL AGREEMENT 
 Hing Chu 
 Address on File 
 Dear Hing: 
 This Severance and Change in Control Agreement (this “Agreement”) amends the employment letter agreement dated May 8, 2001 (the “Prior Agreement”), by and between Atheros Communications, Inc.
(the “Company”) and you. This Agreement supersedes any provisions in the Prior Agreement relating to severance payments and benefits, including payments and benefits upon termination in the event of a change in control of the Company.

 Severance. If the Company terminates your employment other than for Cause (as defined below) prior to a Change of Control (as
defined below) or more than 12 months following a Change of Control, and provided that you sign and do not revoke within the time period specified by the Company a standard release of claims in a form mutually acceptable to the Company and you, then
you will receive the following: (a) a lump sum severance payment within 30 days following your termination equal to six months of your base salary at the highest rate in effect during your employment with the Company, and (b) if you
properly elect to continue the Company’s group health plan coverage under COBRA, the continuation of your health coverage for you and your enrolled dependents at no cost to you for six months following the effective date of termination. You
will be able to continue your health benefits beyond six months at your own expense as allowed under the Company’s health plans. 
 Change In Control: In the event of a Change of Control (as defined below), if your employment is terminated without Cause (as defined below) or you terminate your employment for Good Reason (as defined below), in either case within
12 months following the Change of Control, and provided that you sign and do not revoke within the time period specified by the Company (or its successor) a standard release of claims in a form mutually acceptable to the Company (or its successor)
and you, then you shall receive the following: (a) a lump sum severance payment within 30 days following your termination equal to 12 months of your base salary at the highest rate in effect during your employment with the Company; (b) if
you properly elect to continue the Company’s group health plan coverage under COBRA, continuation by the Company (or its successor) of your health coverage for you and your enrolled dependents at no cost to you for 12 months following the
effective date of termination (you will be able to continue your health benefits beyond 12 months at your own expense as allowed under the Company’s health plans); (c) if not already paid to you at the time of termination, your earned cash
incentive bonus under the Company’s bonus plan in effect for the calendar year immediately prior to the termination, as determined by the Board of Directors, payable at the time of termination or the time at which the Board of Directors has
determined the amount of the bonus, whichever is later; (d) your baseline target annual cash incentive bonus under the Company’s bonus plan in effect during the calendar year of the termination, pro rated for the portion of the then
current calendar year prior to the date of termination, payable within 30 days after the date of your termination; and (e) all of your unvested stock options and restricted stock units granted by the Company to you prior to the Change of
Control and that have been assumed or substituted by the acquiring company, shall become fully vested as of the date of termination, and (f) the period in which vested stock options may be exercised will be extended to the earlier of one year
following your termination date or the original expiration date of the option grant. 

 “Change of Control” means: (a) any merger, acquisition or similar transaction or series of
related transactions in which the Company is not the surviving entity, except for a transaction the principal purpose of which is to change the jurisdiction in which the Company is incorporated, (b) the sale, transfer or other disposition of
all or substantially all of the assets of the Company, or (c) any reverse merger or acquisition in which the Company is the surviving entity but in which more than fifty percent (50%) of the Company’s outstanding voting stock is
transferred to holders different from those who held the stock immediately prior to such merger. 
 “Cause” means
(a) intentional and material dishonesty in the performance of your duties for the Company; (b) conduct (including conviction of or plea of nolo contendere to a felony) which has a direct and material adverse effect on the Company or its
reputation; (c) failure to materially perform your reasonable duties or comply with your obligations under this Agreement or the Company’s Confidential Information and Invention Assignment Agreement after receipt of written notice
specifying the failure, if you do not remedy that failure within 10 business days of receipt of written notice from the Company, which notice will state that failure to remedy such conduct may result in termination for Cause; or (d) an
incurable material breach of the Company’s Confidential Information and Invention Assignment Agreement, including, without limitation, theft or other misappropriation of the Company’s proprietary information. 
 “Good Reason” means (a) any material reduction in your authorities, duties or responsibilities not approved in writing by you; provided,
however, that any reduction in your authorities, duties or responsibilities occurring in connection with a Change in Control of the Company shall not constitute either Good Reason or a constructive termination of your employment; (b) any
material reduction in your then current base salary plus target bonus opportunity compensation; or (c) any requirement that your principal place of work for the Company be relocated more than 50 miles from its then current location.
Notwithstanding the foregoing, a termination shall not be considered to be for “Good Reason” unless you notify the Company of the existence of the condition constituting Good Reason within 90 days following the initial existence thereof,
the Company fails to remedy the condition within 30 days following the receipt of such notice, and you terminate employment within 120 days following the initial existence of such condition. 
 All payments and benefits under this Agreement shall be subject to applicable withholding taxes. 
 Section 409A: 
  

	 	•	 	 If, as of the date of your “separation from service” from the Company, you are a “specified employee” (each, for purposes of this Agreement,
within the meaning of Section 409A of the Internal Revenue Code of 1986 (the “Code”) and the guidance issued thereunder (“Section 409A”)), then each payment under this Agreement that would otherwise be paid within the
six-month period following your “separation from service” shall not be paid until the date that is six months and one day after such separation from service (or, if earlier, the date of your death), with any such payment that is required
to be delayed being accumulated during the six-month period and paid in a lump sum on the date that is six months and one day following your separation from service and subsequent payments, if any, being paid in accordance with the dates and terms
set forth herein; provided, however, that the preceding provisions of this sentence shall not apply to any payments if and to the maximum extent that such payments are excluded from the definition of nonqualified deferred compensation subject to
Section 409A, or can otherwise be paid during such six-month period without violating the requirements of Section 409A(a)(2) under applicable guidance under Section 409A. Such payments shall bear interest at an annual rate equal to
the prime rate as set forth in the Eastern edition of the Wall Street Journal on the date of termination, from the date of termination to the date of payment. 

  

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	 	•	 	 Your date of termination for purposes of determining the date that any payment that is treated as nonqualified deferred compensation under Section 409A is to
be paid or provided (or in determining whether an exemption to such treatment applies), shall be the date on which you have incurred a “separation from service” within the meaning of applicable Treasury Department or Internal Revenue
Service guidance under Section 409A. 

 Section 280G: 
 In the event that any benefits payable to you pursuant to this Agreement (“Termination Benefits”) (i) constitute “parachute
payments” within the meaning of the Code, and (ii) but for this paragraph would be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then your Termination Benefits shall be reduced to such
lesser amount which would result in no portion of such benefits being subject to the Excise Tax. Unless the Company and you otherwise agree in writing, any determination required under this paragraph shall be made in writing in good faith by a
nationally recognized accounting firm selected by the Company (the “Accountants”). In the event of a reduction of benefits hereunder, benefits shall be reduced in the order which results in the greatest economic benefit to you. For
purposes of making the calculations required by this paragraph, the Accountants may make reasonable assumptions and approximations concerning applicable taxes and may rely on reasonable, good faith interpretations concerning the application of the
Code, and other applicable legal authority. The Company and you shall furnish to the Accountants such information and documents as the Accountants may reasonably request in order to make a determination under this paragraph. The Company shall bear
the cost of all fees the Accountants charge in connection with any calculations contemplated by this paragraph. 
 Nothing in this Agreement
shall alter the at-will nature of your employment or provide an obligation express or implied for the payment of severance except as expressly provided herein. 
 Except as amended hereby, all other terms and conditions of the Prior Agreement shall remain in full force and effect. This Agreement and the Prior Agreement constitute the complete and entire agreement among the
parties relating to the subject matter thereof, and there are no prior or contemporaneous oral or written representations, promises or agreements not expressly set forth therein. This Agreement may not be modified in any respect except by a writing
dated and signed by the parties hereto. 
  

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 In order to confirm your agreement with and acceptance of the foregoing provisions of this Agreement,
please sign one copy of this letter and return it to Sharon Thompson. The other copy is for your records. 
  

			
	Very truly yours,
	
	ATHEROS COMMUNICATIONS, INC.
		
	By:	 	/s/ Sharon Thompson
	Title:	 	Vice President Global Human Resources

 The undersigned agrees to the amendment of the Prior Agreement set forth in this Severance and Change in
Control Agreement. 
  

							
				
	 /s/ Hing Chu
	 		 	2/12/09	 	 
	Hing Chu	 		 	Date	 	

  

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