TRIQUINT SEMICONDUCTOR, INC. 2007 EMPLOYEE STOCK PURCHASE PLAN

Exhibit 10.54

TRIQUINT SEMICONDUCTOR, INC.

2007 EMPLOYEE STOCK PURCHASE PLAN

The following constitute the provisions of the 2007 Employee Stock Purchase Plan of TriQuint Semiconductor, Inc.

1. Purpose . The purpose of the Plan is to provide employees of the Company and its Designated Companies with an opportunity to purchase Common Stock at a discount. It is the intention of the Company to have the Plan qualify as an “employee stock purchase plan” under Section 423 of the Code, although the Company makes no undertaking or representation to maintain such qualification. The provisions of the Plan, accordingly, will be construed so as to extend and limit Plan participation in a uniform and nondiscriminatory basis consistent with the requirements of Section 423 of the Code. In addition, the Plan authorizes the purchase of Common Stock under a Non-423(b) Component, pursuant to rules, procedures or sub-plans adopted by the Administrator and designed to achieve tax, securities law or other objectives, provided, however, that U.S. Eligible Employees will not be permitted to purchase Stock under the Non-423(b) Component.

2. Definitions .

(a) “ Affiliate ” means any entity, other than a Subsidiary, in which the Company has an equity or other ownership interest.

(b) “ Administrator ” means the Board or any Committee designated by the Board to administer the Plan pursuant to Section 14.

(c) “ Applicable Laws ” means the requirements relating to the administration of equity-based awards under U.S. state corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation system on which the Common Stock is listed or quoted and the applicable laws of any foreign country or jurisdiction where awards are, or will be, granted under the Plan.

(d) “ Board ” means the Board of Directors of the Company.

(e) “ Change in Control ” means the occurrence of any of the following events:

(i) Any “person” (as such term is used in Sections 13(d) and 14(d) of the Exchange Act) becomes the “beneficial owner” (as defined in Rule 13d-3 of the Exchange Act), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the total voting power represented by the Company’s then outstanding voting securities; or

(ii) The consummation of the sale or disposition by the Company of all or substantially all of the Company’s assets; or

(iii) The consummation of a merger or consolidation of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by

remaining outstanding or by being converted into voting securities of the surviving entity or its parent) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity or its parent outstanding immediately after such merger or consolidation; or

(iv) A change in the composition of the Board occurring within a two (2)-year period, as a result of which less than a majority of the Directors are Incumbent Directors. “Incumbent Directors” means Directors who either (A) are Directors as of the effective date of the Plan, or (B) are elected, or nominated for election, to the Board with the affirmative votes of at least a majority of the Directors at the time of such election or nomination (but will not include an individual whose election or nomination is in connection with an actual or threatened proxy contest relating to the election of Directors to the Company).

(f) “ Code ” means the Internal Revenue Code of 1986, as amended. Any reference to a section of the Code herein will be a reference to any successor or amended section of the Code.

(g) “ Code Section 423(b) Component ” shall mean an employee stock purchase plan which is designed to meet the requirements set forth in Section 423(b) of the Code. The provisions of the Code Section 423(b) Component shall be construed, administered and enforced in accordance with Section 423(b) of the Code.

(h) “ Committee ” means a committee of the Board appointed in accordance with Section 14 hereof.

(i) “ Common Stock ” means the common stock of the Company.

(j) “ Company ” means TriQuint Semiconductor, Inc., a Delaware corporation.

(k) “ Compensation ” means an Employee’s base straight time gross earnings, commissions (to the extent such commissions are an integral, recurring part of compensation), overtime and shift premium, but exclusive of payments for incentive payments, bonuses and other compensation. The Administrator has the exclusive discretion to determine what constitutes Compensation for purposes of the Plan.

(l) “ Designated Company ” means any Affiliate and Subsidiary that has been designated by the Administrator from time to time in its sole discretion as eligible to participate in the Plan. For purposes of the Code Section 423(b) Component, only the Company and its Subsidiaries may be Designated Companies, provided, however, that at any given time, a Subsidiary that is a Designated Company under the Code Section 423(b) Component shall not be a Designated Company under the Non-423(b) Component.

(m) “ Director ” means a member of the Board.

(n) “ Eligible Employee ” means any individual who is a common law employee of an Employer and is customarily employed for at least twenty (20) hours per week and more than five (5) months in any calendar year by the Employer, provided, however, that employees of a Designated Company in the Non-423(b) Component may be Eligible Employees even if their customary employment is less than five (5) months per calendar year and/or twenty (20) hours per

week, to the extent required by Applicable Laws. For purposes of the Plan, the employment relationship will be treated as continuing intact while the individual is on sick leave or other leave of absence that the Employer approves. Where the period of leave exceeds ninety (90) days and the individual’s right to reemployment is not guaranteed either by statute or by contract, the employment relationship will be deemed to have terminated on the ninety-first (91 ^st ) day of such leave. To the extent permitted by Applicable Laws, the Administrator, in its discretion, from time to time may, prior to an Offering Date for all options to be granted on such Offering Date, determine that the definition of Eligible Employee will or will not include an individual if he or she: (i) has not completed at least two (2) years of service since his or her last hire date (or such lesser period of time as may be determined by the Administrator in its discretion), (ii) customarily works not more than twenty (20) hours per week (or such lesser period of time as may be determined by the Administrator in its discretion), (iii) customarily works not more than five (5) months per calendar year (or such lesser period of time as may be determined by the Administrator in its discretion), (iv) is an officer or other manager, or (v) is a highly compensated employee under Section 414(q) of the Code, provided, however, that for Eligible Employees participating in the Code Section 423(b) Component, such determination must be made on a uniform and nondiscriminatory basis.

(o) “ Employer ” means any one or all of the Company and its Designated Companies.

(p) “ Exchange Act ” means the Securities Exchange Act of 1934, as amended, including the rules and regulations promulgated thereunder.

(q) “ Exercise Date ” means the first Trading Day on or after June 1 and December 1 of each year. The first Exercise Date under the Plan will be the first Trading Day on or after December 1, 2007. The Administrator, in its discretion, from time to time may, prior to an Offering Date for all options to be granted on such Offering Date, determine when the Exercise Dates will occur during an Offering Period.

(r) “ Fair Market Value ” means, as of any date and unless the Administrator determines otherwise, the value of Common Stock determined as follows:

(i) If the Common Stock is listed on any established stock exchange or a national market system, including without limitation the Nasdaq Stock Market, LLC its Fair Market Value will be the closing sales price for such stock (or the closing bid, if no sales were reported) as quoted on such exchange or system on the date of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable;

(ii) If the Common Stock is regularly quoted by a recognized securities dealer but selling prices are not reported, its Fair Market Value will be the mean of the closing bid and asked prices for the Common Stock on the date of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; or

(iii) In the absence of an established market for the Common Stock, the Fair Market Value thereof will be determined in good faith by the Administrator.

(s) “ Fiscal Year ” means the fiscal year of the Company.

(t) “ Non-423(b) Component ” means the grant of an option under the Plan which is not intended to meet the requirements set forth in Section 423(b) of the Code.

(u) “ Offering Date ” means the first Trading Day of each Offering Period.

(v) “ Offering Periods ” means the period of time the Administrator may determine prior to an Offering Date, for options to be granted on such Offering Date, during which an option granted under the Plan may be exercised, not to exceed twenty-seven (27) months. Unless the Administrator provides otherwise, Offering Periods will have a duration of approximately six (6) months (i) commencing on the first Trading Day on or after June 1 of each year and terminating on the first Trading Day on or following December 1, approximately six (6) months later, and (ii) commencing on the first Trading Day on or after December 1 of each year and terminating on the first Trading Day on or following June 1, approximately six (6) months later; provided, however, that the first Offering Period under the Plan will commence on the later of (i) the first Trading Day on or after June 1, 2007, or (ii) the first Trading Day on or after the Company’s 2007 Annual Meeting of Stockholders, and will end on the first Trading Day on or after December 1, 2007. The duration and timing of Offering Periods may be changed pursuant to Sections 4 and 20.

(w) “ Parent ” means a “parent corporation,” whether now or hereafter existing, as defined in Section 424(e) of the Code.

(x) “ Plan ” means this TriQuint Semiconductor, Inc. 2007 Employee Stock Purchase Plan, which includes a Code Section 423(b) Component and a Non-423(b) Component.

(y) “ Purchase Period ” means the period during an Offering Period which shares of Common Stock may be purchased on a participant’s behalf in accordance with the terms of the Plan. Unless and until the Administrator provides otherwise, the Purchase Period will have the same duration and coincide with the length of the Offering Period.

(z) “ Purchase Price ” shall be determined by the Administrator (on a uniform and nondiscriminatory basis) prior to an Offering Date for all options to be granted on such Offering Date, subject to compliance with Section 423 of the Code (or any successor rule or provision or any other applicable law, regulation or stock exchange rule) or pursuant to Section 20. Unless and until the Administrator provides otherwise, the Purchase Price will be equal to eighty-five percent (85%) of the Fair Market Value of a share of Common Stock on the Offering Date or the Exercise Date, whichever is lower.

(aa) “ Subsidiary ” means a “subsidiary corporation,” whether now or hereafter existing, as defined in Section 424(f) of the Code.

(bb) “ Trading Day ” means a day on which the national stock exchange upon which the Common Stock is listed is open for trading.

(cc) “ U.S. Eligible Employee ” means an Eligible Employee who (i) resides in the United States, and (ii) is employed by the Company or by a Designated Company located in the United States.

3. Eligibility .

(a) First Offering Period . Any individual who is an Eligible Employee immediately prior to the first Offering Period under the Plan will be automatically enrolled in the first Offering Period.

(b) Subsequent Offering Periods . Any individual who is an Eligible Employee on a given Offering Date of any future Offering Period will be eligible to participate in the Plan, subject to the requirements of Section 5.

(c) Limitations . Any provisions of the Plan to the contrary notwithstanding, no Eligible Employee will be granted an option under the Plan (i) to the extent that, immediately after the grant, such Eligible Employee (or any other person whose stock would be attributed to such Eligible Employee pursuant to Section 424(d) of the Code) would own capital stock of the Company or any Parent or Subsidiary of the Company and/or hold outstanding options to purchase such stock possessing five percent (5%) or more of the total combined voting power or value of all classes of the capital stock of the Company or of any Parent or Subsidiary of the Company, or (ii) to the extent that his or her rights to purchase stock under all employee stock purchase plans (as defined in Section 423 of the Code) of the Company or any Parent or Subsidiary of the Company accrues at a rate which exceeds twenty-five thousand dollars ($25,000) worth of stock (determined at the Fair Market Value of the stock at the time such option is granted) for each calendar year in which such option is outstanding at any time.

4. Offering Periods . The Plan will be implemented by consecutive Offering Periods with a new Offering Period commencing on the first Trading Day on or after June 1 and December 1 each year, or on such other date as the Administrator will determine; provided, however, that the first Offering Period under the Plan will commence on the later of (i) the first Trading Day on or after June 1, 2007, or (ii) the first Trading Day on or after the Company’s 2007 Annual Meeting of Stockholders, and will end on the first Trading Day on or after December 1, 2007. The Administrator will have the power to change the duration of Offering Periods (including the commencement dates thereof) with respect to future offerings without stockholder approval if such change is announced prior to the scheduled beginning of the first Offering Period to be affected thereafter.

5. Participation .

(a) First Offering Period . An Eligible Employee who has become a participant in the first Offering Period under the Plan pursuant to Section 3(a) will be entitled to continue his or her participation in such Offering Period only if he or she submits to the Company’s payroll office (or its designee) a properly completed subscription agreement authorizing contributions to the Plan in the form provided by the Administrator for such purpose or following an electronic or other enrollment procedure prescribed by the Administrator (i) no earlier than the effective date of the filing of the Company’s Registration Statement on Form S-8 with respect to the shares of Common Stock issuable under the Plan (the “Effective Date”) and (ii) no later than ten (10) business days from the Effective Date or such other period of time as the Administrator may determine (the “Enrollment Window”). A participant’s failure to submit the subscription agreement during the Enrollment Window pursuant to this Section 5(a) will result in the automatic termination of his or her participation in the first Offering Period under the Plan.

(b) Subsequent Offering Periods . An Eligible Employee who is eligible to participate in the Plan pursuant to Section 3(b) may become a participant by (i) submitting to the Company’s payroll office (or its designee), on or before a date prescribed by the Administrator prior to an applicable Offering Date, a properly completed subscription agreement authorizing contributions to the Plan in the form provided by the Administrator for such purpose, or (ii) following an electronic or other enrollment procedure prescribed by the Administrator.

6. Payroll Deductions/Contributions .

(a) At the time a participant enrolls in the Plan pursuant to Section 5, he or she will elect to have payroll deductions made on each pay day during the Offering Period in an amount not exceeding fifteen percent (15%) of the Compensation which he or she receives on each pay day during the Offering Period; provided, however, that should a pay day occur on an Exercise Date, a participant will have the payroll deductions made on such day applied to his or her account under the subsequent Offering Period. To the extent required by Applicable Laws, the Administrator, in its discretion, may decide that a participant may contribute to the Plan by means other than payroll deductions, provided that contributions other than payroll deductions will be permissible only for Eligible Employees participating in the Non-423(b) Component. A participant’s subscription agreement will remain in effect for successive Offering Periods unless terminated as provided in Section 10 hereof.

(b) Payroll deductions or other contributions authorized by a participant will commence on the first pay day following the Offering Date and will end on the last pay day prior to the Exercise Date of such Offering Period to which such authorization is applicable, unless sooner terminated by the participant as provided in Section 10 hereof; provided, however, that for the first Offering Period under the Plan, payroll deductions or other contributions will commence on the first pay day on or following the Enrollment Window.

(c) All payroll deductions or other contributions made for a participant will be credited to his or her account under the Plan and will be withheld in whole percentages only. A participant may not make any additional payments into such account, unless required by loca law.

(d) A participant may discontinue his or her participation in the Plan as provided in Section 10, or may increase or decrease the rate of his or her payroll deductions or other contributions during the Offering Period by (i) properly completing and submitting to the Company’s payroll office (or its designee), on or before a date prescribed by the Administrator prior to an applicable Exercise Date, a new subscription agreement authorizing the change in payroll deduction or contribution rate in the form provided by the Administrator for such purpose, or (ii) following an electronic or other procedure prescribed by the Administrator. If a participant has not followed such procedures to change the rate of payroll deductions or other contributions, the rate of his or her payroll deductions or contributions will continue at the originally elected rate throughout the Offering Period and future Offering Periods (unless terminated as provided in Section 10). The Administrator may, in its sole discretion, limit the nature and/or number of payroll deduction or contribution rate changes that may be made by participants during any Offering Period. Any change

in payroll deduction or contribution rate made pursuant to this Section 6(d) will be effective as of the first full payroll period following five (5) business days after the date on which the change is made by the participant (unless the Administrator, in its sole discretion, elects to process a given change in payroll deduction or contribution rate more quickly).

(e) Notwithstanding the foregoing, to the extent necessary to comply with Section 423(b)(8) of the Code and Section 3(c), or if the Administrator reasonably anticipates a participant has contributed a sufficient amount to purchase a number of shares of Common Stock equal to or in excess of the applicable limit for such Offering Period (as set forth in Section 7 or as established by the Administrator), a participant’s payroll deductions or other contributions may be decreased to zero percent (0%) at any time during an Offering Period. Subject to Section 423(b)(8) of the Code and Section 3(c) hereof, or for participants who have had their contributions reduced due to the applicable limits on the maximum number of shares that may be purchased in any Offering Period, payroll deductions or other contributions will recommence at the rate originally elected by the participant effective as of the beginning of the first Offering Period which is scheduled to end in the following calendar year, unless terminated by the participant as provided in Section 10.

(f) At the time the option is exercised, in whole or in part, at the time some or all of the Common Stock issued under the Plan is disposed of, or at the time of any other relevant taxable event, the participant must make adequate provision for the Company’s or Employer’s federal, state, or any other tax liability payable to any authority, national insurance, social security or other tax withholding obligations, if any, which arise upon the relevant taxable event. At any time, the Company or the Employer may, but will not be obligated to, withhold from the participant’s compensation the amount necessary for the Company or the Employer to meet applicable withholding obligations, including any withholding required to make available to the Company or the Employer any tax deductions or benefits attributable to sale or early disposition of Common Stock by the Eligible Employee.

7. Grant of Option . On the Offering Date of each Offering Period, each Eligible Employee participating in such Offering Period will be granted an option to purchase on each Exercise Date during such Offering Period (at the applicable Purchase Price) up to a number of shares of Common Stock determined by dividing such Eligible Employee’s co