Document:

Salary Raise Letter - Yu Liu

 Exhibit 10.22 
 February 1, 2008 
 Yu Liu 
 Dear Yu, 
 In recognition of your continued and valued contributions to Apache, I am pleased to
inform you that effective February 1, 2008, your annualized base salary has been increased by an amount of 10,000.00 USD or 8.33%. Your new base salary is 130,000.00 USD. 
 All Apache employees are part of the momentum being created in 2008, and I would like to thank you for your continuing contributions to the company, and our team. 

 

	
	 /s/ Andrew Yang

	 Andrew Yang

	 CEO

	
	 /s/ Yu Liu

	 Yu LiuOffer Letter - Aveek Sarkar

 Exhibit 10.23 
 Apache Design Solutions, Inc. 
 1881 Landings Drive 

Mountain View, CA 94043 
 Sept
11, 2003 
 Mr. Aveek Sarkar 

[Address] 
 Dear Aveek: 

It my pleasure to offer you the position of Senior Product Engineer, reporting to Henry Lee (Director of Product Engineering) at Apache
Design Solutions, Inc. (the “Company”). This letter shall serve to confirm the terms of your employment with the Company. Such employment shall begin no later than October 13, 2003. If the terms discussed below are acceptable to you,
please sign this confirmation letter where indicated and return it to me. 
 1. Compensation. 

a. Salary. You will be paid a salary of $7916.00 per month ($95,000 annually) prorated for your start-date, less applicable withholdings and
deductions (hereafter “Salary”). The salary will be paid bi-weekly. 
 b. Stock Option Plan. Subject to Board
approval, the Company will also grant you an option to purchase Seventy thousands (70,000) shares of Common Stock at an exercise price equal to the then fair market value as determined by the Board of Directors. Such Option shall be subject to
vesting restrictions and other standard provisions set forth in the Company’s stock option documentation as follows: (i) 25% of the Shares shall vest in full at the end of your first full year of employment with the Company and
(ii) the remainder shall vest monthly over the three-year period thereafter such that at the end of four full years of continuous employment with the Company, all of the Shares shall be fully vested. 

2. Vacation, Holidays and Sick-Leave. The Company will provide you with 15 paid time-off (PTO) days per year of service during your employment.
PTO includes vacation and sick leave. PTO is pro-rated for a partial year of service. Holidays will be provided in accordance with the Company’s policies. 
 3. Health Insurance. You may elect to join the Apache medical and dental benefit plan as offered to all employees. The Company will cover the cost of the HMO plan for yourself and your family. If
you desire to be covered by a PPO plan, the difference will be deducted from your salary on a bi-weekly basis. 

 4. Non-Compete and Outside Activities. You agree that, while serving as a full-time employee of the
Company, you will not engage in any activity which is competitive with the Company, either during or after work hours. 
 5. Proprietary
Information and Inventions Agreement. Your acceptance of this offer is contingent upon the execution of the Company’s Proprietary Information and Inventions Agreement, a copy of which is attached hereto as Exhibit A for your execution.

 6. Arbitration. Any controversy between the parties hereto involving the construction of application of any terms, covenants or
conditions of this Agreement, or any claims arising out of or relating to this Agreement or the breach thereof or with your employment with the Company or any termination of that employment, will be submitted to and settled by final and binding
arbitration in Palo Alto, California, in accordance with the Model Employment Dispute Resolution Rules of the American Arbitration Association (the “Rules”) then in effect. Any arbitrator shall be selected pursuant to such Rules and
judgment upon the award rendered by the arbitrators may be entered in any court having jurisdiction thereof. 
 The terms of
this offer and the enclosed Proprietary Information and Inventions Agreement must be agreed to as a condition of your employment. To accept this offer, please sign below and where indicated on the Proprietary Information and Inventions Agreement.
This offer is valid until Sept 20, 2003. 
 Employment with the Company is not for a specific term and can be terminated by
yourself or by the Company at any time for any reason, with or without cause, without liability to either party. Any contrary representations which may have been made or which may be made to you are superseded by this offer. This offer represents
the full and complete agreement between us. We request that all of our employees, to the extent possible, give us advance notice if they intend to resign. 
 We look forward to working with you to make Apache Design Solutions, Inc. a great success in bringing this new technology to the marketplace. If you have any questions about this offer, please feel free
to call me. 
  

	
	 Sincerely,

	
	 /s/ Andrew T. Yang

	
	 Andrew T. Yang

	CEO and Chairman, Apache Design Solutions, Inc.
	
	 Cc: Cindy Suen, Office Manager/Apache Design

 ACCEPTANCE 
 I accept this employment offer. The provisions stated in this letter supersede all prior discussions and offer negotiations. 

 

			
	 Accepted:
	 	/s/ Aveek Sarkar

			
		
	 Printed Name:
	 	Aveek Sarkar

			
		
	 Date:
	 	9/22/03

			
		
	 Start Date:
	 	10/10/2003

 EXHIBIT A 
 PROPRIETARY INFORMATION AND INVENTIONS AGREEMENTLetter Agreement - Ping Yang

 Exhibit 10.24 
 As of January 14, 2011 
 Ping Yang 

 

	 	Re:	Board Membership 

 Dear Ping: 

This letter confirms the agreement between you and Apache Design Solutions, Inc., a Delaware corporation (the “Company”),
regarding your continued membership on the Company’s Board of Directors (the “Board”) and your services to the Company. Such membership shall continue until your successor is duly elected and qualified or until your earlier death,
resignation or removal. The Company would like you to serve as a member of its Audit Committee, as Interim Chair of the Nominating and Corporate Governance Committee (“NCGC”) and as the Chair of the Compensation Committee. 

Cash Compensation 

Board Retention Fee. For so long as you remain a member of the Board, you will earn an annual fee at the annual rate of $40,000.00.

 Compensation Committee Chair Fee. For so long as you remain Chairman of the Compensation Committee of the Board, you
will earn an additional annual fee at the annual rate of $10,000.00. You will not be entitled to a retainer as Interim Chair of the NCGC. 
 Travel Reimbursement. The Company will reimburse you for all reasonable, documented travel expenses incurred by you in connection with your attendance at in-person Board meetings or committees
thereof. 
 Stock Option Grant 
 As consideration for your services as a member of the Board and subject to the Board’s approval which is expected to occur after the Company obtains the next independent valuation of its common
stock, you will be granted a nonqualified stock option to purchase 9,375 shares of the Company’s common stock (the “Option”), such Option to become vested, subject to your continued service as a member of the Board and early
termination and adjustment as provided in the applicable stock option agreement, in twelve equal monthly installments from and after the date of grant. The per-share exercise price of the shares underlying the Option will be equal to the fair market
value of the Company’s common stock on the date of the Option grant as determined by the Board in its sole discretion, and the maximum term of the Option will be ten (10) years. The Option will be granted under the Company’s stock
incentive plan as then in effect (the “Plan”) and will be evidenced by and subject to a standard stock option agreement under 

 
the Plan that you will be required to sign as a condition to receiving the Option. The shares underlying the Option will fully accelerate and vest upon the Company’s consummation of a
Corporate Transaction (as defined in the Plan). 
 In addition to the Option, as consideration for your services as a member of
the Board and subject to the Board’s approval, on the date of the Company’s next regularly scheduled Board meeting (currently scheduled for February 3, 2011), and, provided you remain in Board service and the Company is then a private
company (i.e., not subject to the reporting requirements of the Securities Exchange Act of 1934, as amended (the “1934 Act”), on the date of each subsequent twelve-month anniversary thereafter, you will be granted a nonqualified stock
option to purchase 12,500 shares of the Company’s common stock (each, an “Annual Option”), each Annual Option to become vested, subject to your continued service as a member of the Board and early termination and adjustment as
provided in the applicable stock option agreement, in twelve equal monthly amounts following the applicable grant date. The per-share exercise price of the shares underlying each Annual Option will be equal to the fair market value of the
Company’s common stock on the date of the Annual Option grant as determined by the Compensation Committee in its sole discretion, and the maximum term of each Annual Option will be ten (10) years. Each Annual Option will be granted under
the Plan and will be evidenced by and subject to a standard stock option agreement under the Plan that you will be required to sign as a condition to receiving the Annual Option. The shares underlying each Annual Option will fully accelerate and
vest upon the Company’s consummation of a Corporate Transaction. 
 If the Company becomes subject to the reporting
requirements of the 1934 Act, however, the terms of your annual refresher grants to be made after the February 2011 initial annual refresher grant shall be as set forth I this paragraph. On or about February 3, 2012, provided you are then
providing Board services to the Company, subject to the approval of the Compensation Committee, you shall be granted a nonqualified option to purchase 4200 shares of the Company’s common stock. Such option shall vest on the date immediately
prior to the date of the Company’s first annual stockholders’ meeting. On the date of the Company’s first annual stockholders’ meeting and on the date of each subsequent annual stockholders’ meeting thereafter, provided you
are then serving on the Company’s Board of Directors, you shall be granted an additional nonqualified option to purchase 12,500 shares of the Company’s common stock. Each such option shall vest in full on the day immediately preceding the
date of the Company’s subsequent annual meeting of its stockholders. Each option shall have an exercise price equal to the fair market value on the date of grant as determined by the Plan. Each option shall vest in full on the consummation date
of a Corporate Transaction and shall be subject to the terms of the Plan and the ancillary agreements of the Plan. 
 You will
not be eligible for any Company health insurance, workers’ compensation, vacation, retirement or other benefits. However, as a member of the Board, you will be covered under a directors’ and officers’ liability policy in accordance
with the terms of such policy, as such policy may be amended, replaced or terminated in 

 
the discretion of the Board. In addition, you will be indemnified by the Company pursuant to the terms of the Company’s standard indemnification agreement. You will continue to perform such
services as an independent contractor and not as an employee of the Company. 
 Confidential Information 

As a member of the Board, you have had and will have access to certain confidential and proprietary information of the Company. You
understand that the Company has rights to information that has been created, discovered or become known to the Company which is confidential and has commercial value in its business (“Proprietary Information”). For example, Proprietary
Information includes, but is not limited to, software programs, other computer programs and copyrightable material, code, web design or architecture, technical drawings, product ideas, trade secrets, data and know-how, inventions (whether patentable
or not), improvements, marketing plans and customer lists. You understand that your relationship with the Company creates a relationship of confidence and trust between you and the Company. You agree to keep in confidence and trust all Proprietary
Information, and you will not use or disclose any Proprietary Information except as directed by the Company. The Company shall be the sole owner of all rights in and to all Proprietary Information. Upon termination of this letter, or otherwise upon
the Company’s request, you agree to return to the Company all Proprietary Information of the Company. 
 Representations 

By accepting this offer you represent and warrant that your position as a member of the Board of the Company does not violate any
agreement, obligations or understandings that you may have with any third party or any current or prior employer. Further, you understand that you are not entitled (contractually or otherwise) to serve as a member of the Board for any period of time
and that, pursuant to the Company’s bylaws, contracts and applicable law, you may be removed or replaced at any time, with or without cause, by the Board or the stockholders of the Company. 

Complete Agreement 
 This
letter agreement and the other documents identified herein constitute the complete, final and exclusive entire agreement between you and the Company with respect to the terms and conditions of your membership on the Board, and they supersede any
other agreement or promises made to you by anyone, whether oral or written, in relation to the subject matter hereof, including the March 13, 2006 letter agreement. This letter agreement will be construed and interpreted in accordance with the
laws of the State of California, without regard to conflicts of laws. This letter agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same
instrument. All numbers herein shall be subject to stock splits and the like. This letter agreement may be amended or modified 

 
by a written agreement between the parties to this agreement (unless modified or amended in a Board-approved plan, in which case such modifications or amendments shall be binding on you without
an additional written agreement). 
 We hope you accept our offer and we look forward to continuing our productive and mutually
beneficial working relationship. 
 Thank you. 
  

					
		  	Best regards,	 	
			
		  	/s/ Andrew T. Yang	 	
			
		  	Andrew T. Yang	 	
		  	Chief Executive Officer	 	

 ************************************************************************ 

I accept the above offer to continue my membership on the Board of Directors of Apache Design Solutions, Inc., a Delaware corporation.

  

	
	 /s/ Ping Yang

	 Ping Yang

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