Exhibit 10.18 THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"). NO SALE OR DISPOSITION MAY BE EFFECTED WITHOUT THE PRIOR WRITTEN CONSENT OF THE COMPANY OR WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL FOR THE HOLDER, SATISFACTORY TO THE COMPANY, THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE ACT OR RECEIPT OF A NO-ACTION LETTER FROM THE SECURITIES AND EXCHANGE COMMISSION. June __, 1996 MONOLITHIC SYSTEM TECHNOLOGY, INC. a California corporation COMMON STOCK PURCHASE WARRANT AGREEMENT THIS CERTIFIES THAT, for value received, FIELD(1) (hereinafter, the "Holder"), is entitled, upon the terms and subject to the conditions hereinafter set forth, to purchase from Monolithic System Technology, Inc., a California corporation (the "Company"), that number of fully paid and nonassessable shares of the Company's Common Stock at the purchase price per share as set forth in Section 1 below. This Warrant is one of a duly authorized series of warrants (collectively, the "Warrants") issued in accordance with and subject to all terms and conditions of the Note and Warrant Purchase Agreement dated June __, 1996 (the "Purchase Agreement") among the Company and each of the Purchasers identified in the Schedule of Purchasers attached thereto pursuant to which the Company purchased the Warrants and the Company's 8.25% Promissory Notes with an aggregate principal amount of $15 million (the "Notes"). The term "Purchase Agreement" shall include the agreement, in each of its respective forms, used in connection with the purchase and sale of the Warrants to certain investors resident in the United States and to certain additional non-U.S. investors pursuant to the requirements of Regulation S promulgated under the United States Securities Act of 1933, as amended (the "Securities Act"). The term "Warrants" shall refer to all Warrants issued pursuant to the Purchase Agreement in each of its respective forms. TERMS AND CONDITIONS OF WARRANT 1. NUMBER OF SHARES: EXERCISE PRICE; TERM. (a) The Holder shall be entitled to subscribe for and purchase up to that number of shares of the fully paid and nonassessable Common Stock of the Company (the "Shares") determined by dividing (i) FIELD(2) by (ii) the Exercise Price in effect at the time of such subscription and purchase. (b) Until the earlier of (i) the closing of the initial public offering of the Company's Common Stock (the "IPO Closing") pursuant to a registration statement filed with and declared effective by the Securities and Exchange Commission (the "IPO Closing") and (ii) one year from the date of this Warrant, the Exercise Price shall equal $6.50 per Share. After the earlier of (i) the IPO Closing and (ii) the date one year from the date of this Warrant, the Exercise Price shall equal $8.50 per Share. -1- (c) The Holder may exercise this Warrant at any time and from time to time prior to 5:00 p.m. (California Time) on May 31, 1998 (the "Expiration Date"). This Warrant shall expire and cease to be exercisable after the Expiration Date. 2. EXERCISE OF WARRANT. (a) This Warrant may be exercised by the Holder as to the whole or any lesser number of the Shares covered hereby, at any time and from time to time prior to the Expiration Date, upon surrender of this Warrant to the Company at its principal executive office together with the Notice of Exercise and Investment Representation Statement annexed hereto as EXHIBITS A and B, respectively, duly completed and executed by the Holder, and payment to the Company of the aggregate Exercise Price for the Shares to be purchased in the form of (i) a check made payable to the Company, (ii) forgiveness (evidenced by a writing signed by the holder of the respective Note) of outstanding principal owed by the Company under the Notes in an amount equal to the aggregate Exercise Price for the Shares to be purchased, or (iii) any combination of (i) and (ii). Certificates for the Shares so purchased shall be delivered to the Holder within a reasonable time not to exceed 21 days after exercise of the stock purchase rights represented by this Warrant. The exercise of this Warrant shall be deemed to have been effected on the day on which the Holder surrenders this Warrant to the Company and satisfies all of the requirements of this Section 2. Upon such exercise, the Holder will be deemed a shareholder of record of those Shares for which the warrant has been exercised with all rights of a shareholder (including, without limitation, all voting rights with respect to such Shares and all rights to receive any dividends with respect to such Shares). If this Warrant is to be exercised in respect of less than all of the Shares covered hereby, the Holder shall be entitled to receive a new warrant covering the number of Shares in respect of which this Warrant shall not have been exercised and for which it remains subject to exercise. Such new warrant shall be in all other respects identical to this Warrant. (b) In the event (i) the Exercise Price in effect at the time of exercise of this Warrant by the Holder is $6.50 and (ii) the per-share price at which shares of the Company's Common Stock are sold to the public at the IPO Closing is less than $12.50, the Company shall pay to the Holder an amount equal to the product determined by the following equation: Z=X*Y*[I-(P / IPO)], where Z = the amount to be paid by the Company to the Holder pursuant to this subSection 2(b); X = the number of Shares for which the Holder exercised the Warrant at an Exercise Price of $6.50; Y = $6.50; P = the per-share price at which shares of the Company's Common Stock are sold to the public at the IPO Closing; and IPO = $12.50; PROVIDED, however, that in no event shall the value calculated as "Z" above exceed the product of (i) X and (ii) $1.50. The Company may satisfy any obligation to the Holder pursuant to this Section 2(b) by delivery to the Holder of (i) a check made payable to the Holder or (ii) a note in an amount equal to the value of "Z" and in form and substance equivalent to the Notes (including, without limitation, with respect to interest rate and maturity date). 3. COVENANTS OF THE COMPANY. The Company covenants and agrees that all equity securities which may be issued upon the exercise of the rights represented by this Warrant, upon issuance and payment therefore in accordance herewith, will be duly authorized, validly issued, fully -2- paid, and nonassessable shares of capital stock of the Company. The Company further covenants and agrees that, during the period within which the stock purchase rights represented by this Warrant may be exercised, the Company will at all times have duly authorized and duly reserved for issuance upon the exercise of the purchase rights evidenced by this Warrant a number of shares of its Common Stock sufficient for such issuance. 4. TRANSFER, EXCHANGE, OR LOSS OF WARRANT. (a) This Warrant may not be assigned or transferred except as provided in this Section 4 and in accordance with and subject to the provisions of the Securities Act of 1933, as amended, and the Rules and Regulations promulgated thereunder (collectively, the "Securities Act"). Any purported transfer or assignment made other than in accordance with this Section 4 shall be null and void and of no force or effect. (b) Prior to any transfer of this Warrant, other than in an offering registered under the Securities Act, the Holder shall notify the Company of its intention to effect such transfer, indicating the circumstances of the proposed transfer and, upon request, furnish the Company with an opinion of its counsel, in form and substance satisfactory to counsel for the Company, to the effect that the proposed transfer may be made without registration under the Securities Act or qualification under any applicable state securities laws. The Company will promptly notify the Holder if the opinion of counsel furnished to the Company is satisfactory to counsel for the Company. Unless the Company notifies the Holder within ten (10) days after its receipt of such opinion that such opinion is not satisfactory to counsel for the Company, the Holder may proceed to effect the transfer. (c) Unless a registration statement under the Securities Act is effective with respect to the Shares or any other security issued upon exercise of this Warrant, the certificate representing such Shares or other securities shall bear the following legend, in addition to any legend imposed by applicable state securities laws: THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"). NO SALE OR DISPOSITION MAY BE EFFECTED WITHOUT THE PRIOR WRITTEN CONSENT OF THE COMPANY OR WITHOUT AN EFFECTIVE REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL FOR THE HOLDER, SATISFACTORY TO THE COMPANY, THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE ACT OR RECEIPT OF A NO-ACTION LETTER FROM THE SECURITIES AND EXCHANGE COMMISSION. (d) Upon receipt by the Company of satisfactory evidence of loss, theft, destruction, or mutilation of this Warrant and of indemnity satisfactory to the Company, and upon surrender and cancellation of this Warrant, if mutilated, the Company will execute and deliver a new Warrant of like tenor and date and any such lost, stolen, or destroyed Warrant shall thereupon become void. Any such new Warrant executed and delivered shall constitute an additional contractual obligation on the part of the Company, whether or not the Warrant so lost, stolen, destroyed, or mutilated shall be at any time enforceable by anyone. 5. NO FRACTIONAL SHARES OR SCRIP. No fractional shares or scrip representing fractional shares shall be issued upon the exercise of this Warrant. In lieu of any fractional share to which such holder would otherwise be entitled, such holder shall be entitled, at its option, to receive either (i) a cash payment equal to the excess of the Fair Market Value for such fractional share above the Exercise -3- Price for such fractional share (as mutually determined by the Company and the Holder) or (ii) a whole share if the Holder tenders the Exercise Price for one whole share. 6. NO RIGHTS AS SHAREHOLDERS. This Warrant does not entitle the holder hereof to any voting rights, dividend rights, or other rights as a shareholder of the Company prior to the exercise hereof. 7. SATURDAYS, SUNDAYS, HOLIDAYS, ETC. If the last or appointed day for the taking of any action or the expiration of any right required or granted herein shall be a Saturday or a Sunday or shall be a legal holiday, then such action may be taken or such right may be exercised on the next succeeding day not a Saturday or a Sunday or a legal holiday. 8. ADJUSTMENTS. The Exercise Price per Share and the number of Shares purchasable hereunder shall be subject to adjustment from time to time as follows: (a) MERGER. If at any time there shall be a merger or consolidation of the Company with or into another corporation when the Company is not the surviving corporation, then, as a part of such merger or consolidation, lawful provision shall be made so that the holder of this Warrant shall thereafter be entitled to receive upon exercise of this Warrant, during the period specified herein and upon payment of the aggregate Exercise Price then in effect, the number of shares of stock or other securities or property of the successor corporation resulting from such merger or consolidation, to which a holder of the stock deliverable upon exercise of this Warrant would have been entitled in such merger or consolidation if this Warrant had been exercised immediately before such merger or consolidation. In any such case, appropriate adjustment shall be made in the application of the provisions of this Warrant with respect to the rights and interests of the Holder after the merger or consolidation. (b) RECLASSIFICATION, ETC. If the Company shall, at any time, by subdivision, combination, or reclassification of securities or otherwise, change any of the securities as to which purchase rights under this Warrant exist into the same or a different number of securities of any other class or classes, the Exercise Price shall be adjusted such that this Warrant shall thereafter represent the right to acquire such number and kind of securities as would have been issuable as the result of such change with respect to the securities which were subject to the purchase rights under this Warrant immediately prior to such subdivision, combination, reclassification or other change. (c) SPLIT, SUBDIVISION OR COMBINATION OF SHARES. If the Company at any time while this Warrant remains outstanding and unexpired shall split, subdivide or combine the securities as to which purchase rights under this Warrant exist, the Exercise Price shall be proportionately decreased in the case of a split or subdivision or proportionately increased in the case of a combination. 9. NOTICE OF ADJUSTMENTS; NOTICES. Whenever the Exercise Price or number of Shares issuable upon exercise hereof shall be adjusted pursuant to Section 8 hereof, the Company shall issue a written notice setting forth, in reasonable detail, the event requiring the adjustment, the amount of the adjustment, the method by which such adjustment was calculated and the Exercise Price and number of Shares purchasable hereunder after giving effect to such adjustment, and shall cause a copy of such notice to be mailed to the holder of this Warrant. 10. MISCELLANEOUS. (a) SUCCESSORS AND ASSIGNS. This Warrant shall be binding upon any successors or assigns of the Company. -4- (b) GOVERNING LAW. This Warrant shall be governed by and construed in accordance with the laws of the State of California as applied to agreements between California residents entered and to be performed entirely within California. (c) ATTORNEYS' FEES. In any litigation, arbitration, or court proceeding between the Company and the holder relating hereto, the prevailing party shall be entitled to reasonable attorneys' fees and expenses incurred in enforcing this Warrant. (d) AMENDMENTS. This Warrant may be amended and the observance of any term of this Warrant may be waived only with the written consent of the Company and the holders of then-outstanding Warrants exercisable for a majority of the shares of the Company's Common Stock then issuable upon exercise of all outstanding unexercised Warrants sold pursuant to the Purchase Agreement. (e) NOTICE. Any notice, request, or other communication required or permitted hereunder shall be in writing and shall be deemed to have been duly given if personally delivered, sent by facsimile, or mailed by registered or certified mail, postage prepaid, or by recognized overnight courier or personal delivery at the respective addresses or facsimile number of the parties as set forth below. Any Party hereto may by notice so given change its address for future notice hereunder. Notice shall conclusively be deemed to have been given when received. If to the Holder: At the address set forth for the Holder in the Schedule of Purchasers to the Purchase Agreement. If to the Company: Monolithic System Technology, Inc. 2670 Seeley Road San Jose, California 95134 ATTN: Wayne B. Snyder, Chief Financial Officer FAX: (408) 321-0780 (f) INVESTOR RIGHTS. All Shares issuable upon exercise of this Warrant are subject to the registration rights provisions of the Second Amended and Restated Investor Rights Agreement dated July 26, 1995 (the "Rights Agreement"), as such agreement may be amended from time to time, as evidenced by an Addendum to the Rights Agreement executed by the original holder of this Warrant in connection with its purchase of the Notes and this Warrant pursuant to the Purchase Agreement. [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] -5- IN WITNESS WHEREOF, the Company and the Holder have caused this Common Stock Purchase Warrant Agreement to be executed as of the date first above written. MONOLITHIC SYSTEM TECHNOLOGY, INC. By: ------------------------------------- Name: ----------------------------------- Title: ---------------------------------- Acknowledged and Agreed: - ----------------------------------- By: -------------------------------- Name: ------------------------------ Title: ----------------------------- -6-