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| x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|---|--------------------------------------------------------------------------------------|

| o | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|---|------------------------------------------------------------------------------------------|

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| DELAWARE                                                      |   | 04-3457049                             |
|---------------------------------------------------------------|--------|----------------------------------------|
| (State or other jurisdiction ofincorporation or organization) |   | (I.R.S. EmployerIdentification Number) |

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| Title of each class              |   | Name of each exchange on which registered           |
|----------------------------------|--------|-----------------------------------------------------|
| Common Stock, $0.00001 par value |   | The Nasdaq Stock Market, LLC (Nasdaq Global Market) |

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|          |         |                                                                                           |         |   |
|---------------|--------------|------------------------------------------------------------------------------------------------|--------------|--------|
|          |    |                                                                                           |    | Page   |
| PART III |    |                                                                                           |    |   |
| Item 10.      |    | Directors, Executive Officers, and Corporate Governance                                        |    | 1      |
| Item 11.      |    | Executive Compensation                                                                         |    | 7      |
| Item 12.      |    | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters |    | 10     |
| Item 13.      |    | Certain Relationships and Related Transactions and Director Independence                       |    | 13     |
| Item 14.      |    | Principal Accountant Fees and Services                                                         |    | 14     |
|          |         |                                                                                           |
| PART IV  |    |                                                                                           |    |   |
| Item 15.      |    | Exhibits and Financial Statement Schedules                                                     |    | 15     |
|          |    | Signatures                                                                                     |    |   |

----

| Item 10. | Directors, Executive Officers and Corporate Governance |
|----------|--------------------------------------------------------|

| Name                                |    | Age    |    | Term Expires |    | Position                                                                  |
|-------------------------------------|--------------|--------|--------------|-------------------|--------------|---------------------------------------------------------------------------|
| CLASS I DIRECTORS                   |    |   |    |              |    |                                                                      |
| Lawrence A. Kaufman, Ph.D.(1)(3)(4) |    | 70     |    | 2011              |    | Director                                                                  |
| David Yang(1)(2)(3)                 |    | 42     |    | 2011              |    | Director                                                                  |
|                                |         |   |         |
| CLASS II DIRECTORS                  |    |   |    |              |    |                                                                      |
| Roger W. Blethen(2)(4)              |    | 59     |    | 2012              |    | Lead Director                                                             |
| Yang Zhao, Ph.D.                    |    | 48     |    | 2012              |    | President, Chief Executive Officer and Chairman of the Board of Directors |
|                                |         |   |         |
| CLASS III DIRECTORS                 |    |   |    |              |    |                                                                      |
| Michael Tung(1)(3)                  |    | 55     |    | 2013              |    | Director                                                                  |
| Quan Zhou, Ph.D.                    |    | 53     |    | 2013              |    | Director                                                                  |

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| (1) | Member of audit committee.        |
|-----|-----------------------------------|
| (2) | Member of compensation committee. |
| (3) | Member of nominating committee    |
| (4) | Member of governance committee    |

----

----

|         | • |   | preside over board meetings in the absence of the chairman and lead “executive sessions” of the board (i.e., sessions without management present);                                      |
|--------------|---------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|    | • |   | consult with other directors concerning corporate governance matters and identification of issues for board meeting discussions and set the board meeting agenda in consultation with the chairman; |
|    | • |   | advise the chief executive officer on organizational development, business strategy and corporate governance; and                                                                                   |
|    | • |   | advise the chief executive officer and chief financial officer on appropriate communications policies and procedures.                                                                               |

----

----

|         | • |   | each non-employee director receives a cash retainer in the amount of $20,000 per year;                                                                                                                                                                                                                                                                                                                                                          |
|--------------|---------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|    | • |   | our lead director and chairpersons of our standing committees receive additional annual cash retainers, as follows: lead director, $20,000; audit committee chair, $10,000; compensation committee chair, $7,500; nominating committee chair, $5,000; and governance committee chair, $5,000;                                                                                                                                                   |
|    | • |   | each incumbent non-employee director receives annually a non-qualified stock option to purchase 12,000 shares of our common stock, and any newly elected non-employee director will receive upon such election a non-qualified stock option to purchase 20,000 shares of our common stock; and                                                                                                                                                  |
|    | • |   | our non-employee directors also receive cash fees for each meeting of the board of directors or of any committee of which they are members that they attend, as follows: all non-employee directors, $2,500 per board meeting; audit committee chair, up to $1,500 per audit committee meeting; compensation committee chair, $2,500 per compensation committee meeting; and other members of our standing committees, $1,000 per committee meeting. |

|                   |   | Fees earnedor paidin  cash(1) |   |   | OptionAwards(2) |   |   | Total  |   |
|------------------------|--------|----------------------------------------------|--------|--------|-----------------|--------|--------|--------|--------|
| Roger W. Blethen(3)    |   | $                                            | 66,500 |   |            | $      | 5,182  |   |   | $ | 71,682 |   |
| Lawrence A. Kaufman(3) |   | $                                            | 34,000 |   |            | $      | 5,182  |   |   | $ | 39,182 |   |
| Michael Tung(3)        |   | $                                            | 46,000 |   |            | $      | 5,182  |   |   | $ | 51,182 |   |
| David Yang(3)          |   | $                                            | 39,000 |   |            | $      | 5,182  |   |   | $ | 44,182 |   |
| Paul M. Zavracky(4)    |   | $                                            | 44,000 |   |            | $      | 5,182  |   |   | $ | 49,182 |   |

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| (1) | Amounts shown reflect fees earned in calendar year 2010 and do not include fees paid in 2010 for services provided in calendar year 2009.                                                                                                                                                                                                                                                                                                   |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | Represents the grant date fair value of non-qualified stock options granted to each non-employee director, computed in accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 718 (“ASC 718”). The assumptions used to calculate the fair value of the stock options granted in 2010 are described in Note 12 to the consolidated financial statements included in this Report. |
| (3) | On May 12, 2010, we granted to each non-employee director a non-qualified stock option to purchase 12,000 shares of our common stock at an exercise price of $3.35 per share, vesting in equal installments on each of the first three anniversaries of the date of grant.                                                                                                                                                                  |
| (4) | Paul M. Zavracky, Ph.D. served as a director until December 31, 2010. Dr. Zavracky was appointed as our President of North American and European Operations on November 30, 2010, and resigned from our board of directors on December 31, 2010.                                                                                                                                                                                            |

----

| Name                          |   | Age |   | Position                                             |
|-------------------------------|--------|-----|--------|------------------------------------------------------|
| Yang Zhao, Ph.D               |   | 48  |   | President, Chief Executive Officer; Director         |
| Patricia Niu                  |   | 44  |   | Chief Financial Officer                              |
| Mark S. Laich                 |   | 49  |   | Vice President – Worldwide Sales and Marketing |
| Paul M. Zavracky, Ph.D.  |   | 62  |   | President of North American and European Operations  |

----

| Item 11. | Executive Compensation |
|----------|------------------------|

|                                                    |   |   |   |            |    |   |           |   |    | Option         |   |   | All other   |   |   |           |   |
|---------------------------------------------------------|--------|--------|--------|-----------------|---------|--------|----------------|--------|---------|----------------|--------|--------|------------------|--------|--------|----------------|--------|
|    Name and Principal Position |   | Year   |   | Salary ($) |    |   | Bonus ($) |   |    | awards ($) (1) |   |   | compensation ($) |   |   | Total ($) |   |
|                                                    |   |   |   |            |    |   |           |   |    |           |   |   |             |   |   |           |   |   |   |   |   |   |
| Yang Zhao, Ph.D (3)                                     |   | 2010   |   | $               | 258,845 |   |           | $      | 275,000 |           |   | $      | -                |   |   | $              | -      |   |   | $ | 533,845 |   |
| President and Chief Executive Officer                   |   | 2009   |   |            | 257,683 |   |           |   | 200,000 |           |   |   |             |   |   |           | 3,000  | (2) |   |   | 460,683 |   |
|                                                    |   |   |   |            |    |   |           |   |    |           |   |   |             |   |   |           |   |   |   |   |   |   |
|                                                    |   |   |   |            |    |   |           |   |    |           |   |   |             |   |   |           |   |   |   |   |   |   |
| Patricia Niu                                            |   | 2010   |   |            | 175,000 |   |           |   | 90,000  |           |   |   | 10,599           |   |   |           | -      |   |   |   | 275,599 |   |
| Chief Financial Officer                                 |   | 2009   |   |            | 155,000 |   |           |   | 75,000  |           |   |   | -                |   |   |           | -      |   |   |   | 230,000 |   |
|                                                    |   |   |   |            |    |   |           |   |    |           |   |   |             |   |   |           |   |   |   |   |   |   |
|                                                    |   |   |   |            |    |   |           |   |    |           |   |   |             |   |   |           |   |   |   |   |   |   |
| Mark S. Laich                                           |   | 2010   |   |            | 180,000 |   |           |   | 90,000  |           |   |   | -                |   |   |           | -      |   |   |   | 270,000 |   |
| Vice President – Worldwide Sales and Marketing    |   | 2009   |   |            | 165,000 |   |           |   | 115,000 |           |   |   | -                |   |   |           | -      |   |   |   | 280,000 |   |
|                                                    |   |   |   |            |    |   |           |   |    |           |   |   |             |   |   |           |   |   |   |   |   |   |

| (1) | Amounts shown do not reflect compensation actually received by the named executive officer. The amounts shown represent the grant date fair value of stock options granted to the named executive officer, computed in accordance with ASC 718. The assumptions used to calculate the fair value of the stock options granted in 2010 and 2009 are described in Note 12 to the consolidated financial statements included in this Report.                                                                                                                 |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | Dr. Zhao was awarded $3,000 in 2009 under our patent reward policy, as a result of the issuance and assignment to us of patents on inventions made by Dr. Zhao.                                                                                                                                                                                                                                                                                                                                                                                      |
| (3) | A portion of Dr. Zhao’s salary payments were paid in Renminbi, or RMB, the legal currency of the People’s Republic of China.  Changes in the Dr. Zhao’s salary from 2009 to 2010 reflect currency exchange rate fluctuations.  For purposes of this table, amounts paid in RMB are translated to United States dollars at the weighted average exchange rate for the period in which the payment occurred, consistent with the manner in which we report our compensation in our consolidated financial statements. |

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|          |   | Option Awards                |
|---------------|--------|-----------------------------------|
|          |   | Number of securities    |   |   | Option |   | Option |
|          |   | underlying unexercised options(1) |   |   | exercise |   | expiration |
| Name          |   | (#) Exercisable              |   |   | (#) Unexercisable |   |   | (#) Unearned |   |   | price ($) |   | date |
| Yang Zhao     |   |                              | 46,250 | (2) |   |   | - |   |   |   | - |   |   | $ | 0.30 |   | 01/01/2015 |
|          |   |                              | 187,500 | (3) |   |   | 62,500 | (3) |   |   | - |   |   |   | 11.70 |   | 10/03/2017 |
|          |   |                              | - |   |   |   | - |   |   |   | 250,000 | (3) |   |   | 11.70 |   | 10/03/2017 |
|          |   |                              | 50,000 | (4) |   |   | 50,000 | (4) |   |   | - |   |   |   | 2.53 |   | 08/08/2018 |
| Patricia Niu  |   |                              | 10,000 | (5) |   |   | - |   |   |   | - |   |   |   | 0.30 |   | 09/08/2014 |
|          |   |                              | 25,000 | (6) |   |   | - |   |   |   | - |   |   |   | 1.54 |   | 11/09/2016 |
|          |   |                              | 37,500 | (7) |   |   | 12,500 | (7) |   |   | - |   |   |   | 7.64 |   | 08/22/2017 |
|          |   |                              | 37,500 | (8) |   |   | 37,500 | (8) |   |   | - |   |   |   | 2.53 |   | 08/08/2018 |
|          |   |                              | - |   |   |   | 25,000 | (9) |   |   | - |   |   |   | 3.42 |   | 03/12/2020 |
| Mark S. Laich |   |                              | 60,000 | (10) |   |   | 60,000 | (10) |   |   | - |   |   |   | 1.80 |   | 10/28/2018 |

----

| (1)       | With the exception of Dr. Zhao’s option expiring on October 3, 2017, all option awards disclosed in this table vest as to 25% of the maximum number of shares issuable pursuant to such award on the first anniversary of the vesting start date, as set by our board of directors, and vest as to an additional 25% of the shares on each subsequent anniversary of the vesting start date, such that each option will be fully vested on the fourth anniversary of the vesting start date.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|  (2) | Granted pursuant to our 2000 Omnibus Stock Plan on February 10, 2005 with a vesting start date of January 1, 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| (3)       | Granted on October 3, 2007. An option of 250,000 shares was granted pursuant to our 2000 Omnibus Stock Plan and vests in equal installments over four years. An additional option for 250,000 shares was granted pursuant to our 2007 Stock Incentive Plan and vests according to the following performance-based criteria: (i) 62,500 shares vest on the day after any period of 12 rolling months in which we recognize at least $10.5 million in earnings before taxes, excluding amortization of intangible assets associated with future acquisitions, which we refer to in this footnote as “adjusted earnings;” (ii) an additional 62,500 shares vest on the day after any period of 12 rolling months in which we recognize at least $13.1 million in adjusted earnings; (iii) an additional 62,500 shares vest on the day after any period of 12 rolling months in which we recognize at least $15.8 million in adjusted earnings; and (iv) an additional 62,500 shares vest on the day after any period of 12 rolling months in which we recognize at least $18.4 million in adjusted earnings. Irrespective of the above terms and conditions, the performance based options will vest fully on the eighth anniversary of the grant date. |
| (4)       | Granted on August 8, 2008 with a vesting start date of August 8, 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| (5)       | Granted on October 15, 2004 with a vesting start date of September 8, 2004.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| (6)       | Granted on November 9, 2006 with a vesting start date of November 9, 2006.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| (7)       | Granted on August 22, 2007 with a vesting start date of August 22, 2007.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| (8)       | Granted on August 8, 2008 with a vesting start date of August 8, 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| (9)       | Granted on March 12, 2010 with a vesting start date of March 12, 2010.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| (10)      | Granted on October 28, 2008 with a vesting start date of October 28, 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |

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| Item 12. | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters |
|----------|------------------------------------------------------------------------------------------------|

|         | • |   | each beneficial owner of 5% or more of the outstanding shares of our common stock; |
|--------------|---------|--------|------------------------------------------------------------------------------------|
|    | • |   | each of our named executive officers;                                              |
|    | • |   | each of our directors; and                                                         |
|    | • |   | all of our executive officers and directors as a group.                            |

|                                                                                                                  |   | Beneficial Ownership |      |
|-----------------------------------------------------------------------------------------------------------------------|--------|----------------------|-----------|
| Name and Address of Beneficial Owner                                                                                  |   | SharesOutstanding    |      |   | Right toAcquire |   |   | Total |   |   | % ofOutstanding |   |
| 5% Stockholders                                                                                                       |   |                 |      |   |   |   |   |   |   |   |   |   |
| Entities Affiliated with IDG-Accel China Growth Fund II L.P.                                                          |   |                 | 4,725,223 |   |   |   | — |   |   |   | 4,725,223 |   |   |   | 19.83 | % |
| c/o IDG VC Management Ltd.(1)Unit 1509, The Center99 Queen’s RoadCentral, Hong Kong                             |   |                 |      |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Seligman Spectrum Focus (Master) Fund(2)PO Box 309Ugland House, South Church StreetGeorge Town, Grand Cayman KY1-1104 |   |                 | 3,078,289 |   |   |   | — |   |   |   | 3,078,289 |   |   |   | 12.92 | % |
| Still River Fund II, LP1601 Trapelo RoadWaltham, Massachusetts 02451                                                  |   |                 | 2,778,107 |   |   |   | — |   |   |   | 2,778,107 |   |   |   | 11.66 | % |
| Entities Affiliated with InveStar Capital, Inc.(3)333 W. San Carlos StreetSan Jose, California 95110                  |   |                 | 2,357,620 |   |   |   | — |   |   |   | 2,357,620 |   |   |   | 9.90 | % |
|                                                                                                                  |   |                 |      |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Executive Officers                                                                                                    |   |                 |      |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Yang Zhao, Ph.D                                                                                                       |   |                 | 779,003   | (4) |   |   | 283,750 |   |   |   | 1,062,753 |   |   |   | 4.41 | % |
| Patricia Niu                                                                                                          |   |                 | 40,000    |   |   |   | 116,250 |   |   |   | 156,250 |   |   |   | * |   |
| Paul M. Zavracky                                                                                                      |   |                 | 22,422    |   |   |   | 99,000 |   |   |   | 121,422 |   |   |   | * |   |
| Mark S. Laich                                                                                                         |   |                 | —   |   |   |   | 60,000 |   |   |   | 60,000 |   |   |   | * |   |
|                                                                                                                  |   |                 |      |   |   |   |   |   |   |   |   |
| Non-Employee Directors                                                                                                |   |                 |      |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Quan Zhou, Ph.D.                                                                                                      |   |                 | 4,725,223 | (1) |   |   | — |   |   |   | 4,725,223 |   |   |   | 19.83 | % |
| Michael Tung                                                                                                          |   |                 | 2,357,620 | (3) |   |   | 24,000 |   |   |   | 2,381,620 |   |   |   | 9.99 | % |
| David Yang                                                                                                            |   |                 | 925,000   | (5) |   |   | 24,000 |   |   |   | 949,000 |   |   |   | 3.98 | % |
| Roger W. Blethen                                                                                                      |   |                 | —   |   |   |   | 99,000 |   |   |   | 99,000 |   |   |   | * |   |
| Lawrence A. Kaufman                                                                                                   |   |                 | —   |   |   |   | 17,333 |   |   |   | 17,333 |   |   |   | * |   |
| All current directors and executive officers as a group (9 persons)                                                   |   |                 | 8,849,268 |   |   |   | 723,333 |   |   |   | 9,572,601 |   |   |   | 38.99 | % |

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| *         | Less than 1.0%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|-----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1)       | Information based upon a Form 3 filed with the Securities and Exchange Commission on March 28, 2011. Includes 4,146,394 shares of which the record owner is IDG-Accel China Growth Fund II L.P., 339,108 shares of which the record owner is IDG-Accel China Investors II L.P., 150,000 shares of which the record owner is IDG Technology Venture Investments, LP., 71,393 shares of which the record owner is IDG Technology Venture Investments, LLC, and 18,328 shares of which the record owner is IDG Technology Venture Investment III, L.P.  Quan Zhou, Ph.D. and Patrick J. McGovern are directors and executive officers of IDG-Accel China Growth Fund GP II Associates Ltd., which is the ultimate general partner of both IDG-Accel China Growth Fund II L.P. and IDG-Accel China Investors II L.P. Dr. Zhou and Mr. McGovern are the managing members of IDG Technology Venture Investment III, LLC, which is the general partner of IDG Technology Venture Investment III, L.P. Messrs. Zhou and McGovern are the managing members of IDG Technology Venture Investments, LLC, which is the general partner of IDG Technology Venture Investments, LP.  Each of Mr. McGovern and Dr. Zhou disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein, if any. |
| (2)       | Information based upon amendment to Schedule 13G filed with the Securities and Exchange Commission on February 10, 2011.  The Schedule 13G was filed jointly with Ameriprise Financial, Inc. and RiverSource Investments, LLC. Ameriprise Financial, Inc., is the parent company of RiverSource Investments, LLC. RiverSource Investments, LLC is an investment adviser to the reporting person.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|  (3) | Includes 1,285,551 shares held by InveStar Semiconductor Development Fund, Inc., and 1,072,069 shares held by InveStar Semiconductor Development Fund, Inc. (II) LCD, together the “InveStar Funds.” InveStar Capital, Inc., a Cayman Islands limited liability company, acts as investment manager of InveStar Funds and exercises investment control over the shares held by such entities. Michael Tung is the chief financial officer and managing partner of VentureStar-InveStar Capital Inc. and Mr. Tung may be deemed to beneficially own the shares held by InveStar Funds and each disclaims beneficial ownership of such shares except to the extent of any pecuniary interest therein. TSMC International Investment Ltd. holds 97.08% interest in the InveStar Funds.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| (4)       | Includes 135,675 shares of common stock held by Yang Zhao, as Trustee of the Yang Zhao Children’s Grantor Retained Annuity Trust and 333,187 shares of common stock held by Yang Zhao, as Trustee of the Yang Zhao Grantor Retained Annuity Trust FBO Naifeng Yang.  140,000 shares of our common stock were issued to Dr. Zhao on April 4, 2011 pursuant to a restricted stock award agreement under our 2007 Stock Incentive Plan.  This award is subject to a right of repurchase which will lapse according to the following vesting schedule: 87,500 shares on the first anniversary of the date of grant and 17,500 shares on each of the next three anniversaries of the date of grant.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| (5)       | Includes 462,500 shares held by Asia Pacific Genesis Venture Capital Fund, L.P., 128,000 shares held by C&D Capital Corp., 113,500 shares held by Global Vision Venture Capital Co., Ltd., 62,500 shares held by Asia Pacific Century Venture Capital LTD, 47,500 shares held by China Power Venture Capital Co., Ltd., 26,500 shares held by Nien Hsing International (Bermuda) Ltd., 21,500 shares held by Asiagroup Worldwide Limited, 17,500 shares held by STAR Pacific Worldwide Limited, 16,500 shares held by A&D Capital Corp., 16,500 shares held by J&D Capital Corp., and 12,500 shares held by CAM-CID Asia Pacific Investment Corp. The CID Group and its affiliates have entered into investment management agreements to manage the investment direction of these entities’ funds. Steven Chang, managing partner of The CID Group, and David Yang, a partner of The CID Group, share voting and dispositive power over shares held by these entities. Mr. Yang disclaims beneficial ownership in all shares except to the extent of his pecuniary interest therein, if any.                                                                                                                                                                                                                          |

----

|                                                          |   | Number of shares to beissued upon exercise ofoutstanding options,warrants and rights |    | Weighted-averageexercise price ofoutstanding options,warrants and rights |    | Number of sharesremaining available forfuture issuance underequity compensationplans (excluding sharesreflected in column (a)) |      |
|---------------------------------------------------------------|--------|----------------------------------------------------------------------------------------------------------|--------------|-------------------------------------------------------------------------------|--------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|
| Plan Category                                                 |   | (a)                                                                                                      |    | (b)                                                                           |    | (c)                                                                                                                                                          |      |
| Equity Compensation Plans Approved by Security Holders        |   | 1,932,430                                                                                                |    | $                                                                             | 5.30         |                                                                                                                                                    | 1,343,538 | (1) |
| Equity Compensation Plans Not Approved by Security Holders(2) |   | 655,650                                                                                             |    |                                                                          | 3.18         |                                                                                                                                                    | 594,350   |   |
|                                                          |   |                                                                                                     |    |                                                                          |         |                                                                                                                                                    |      |   |
| Total                                                         |   | 2,588,080                                                                                                |    | $                                                                             | 4.76         |                                                                                                                                                    | 1,937,888 |   |

----

| (1) | Excludes 600,000 additional shares which may become issuable under our 2007 Stock Incentive Plan on or after November 9, 2011 pursuant to evergreen provisions approved by our stockholders, which provide that, on each of the first five anniversaries of the adoption of the 2007 Incentive Plan the shares available for the future grant of awards under the plan shall be increased by the lesser of (i) 300,000 shares and (ii) an amount determined by the board of directors. |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | Our Amended and Restated 2009 Nonqualified Inducement Stock Option Plan has not been submitted for approval by our stockholders.                                                                                                                                                                                                                                                                                                                                                                 |

----

|   | • |   | we have been or are to be a participant;                                                                                                                                                                                                            |
|--------|---------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | • |   | the amount involved exceeds $120,000; and                                                                                                                                                                                                           |
|   | • |   | any of our directors, executive officers or holders of more than 5% of our capital stock, or any immediate family member of or person sharing the household with any of these individuals, had or will have a direct or indirect material interest. |

----

| Item 14. | Principal Accountant Fees and Services |
|----------|----------------------------------------|

|               |   | Fees   |    |
|--------------------|--------|--------|---------|
| Fee category  |   | 2010   |    |   | 2009 |   |
| Audit fees         |   | $      | 535,000 |   |   | $ | 567,000 |   |
| Audit-related fees |   |   | 40,000  |   |   |   | 25,000 |   |
| Tax fees           |   |   | 31,000  |   |   |   | 63,000 |   |
|               |   |   |    |   |   |   |   |   |
| Total fees         |   | $      | 606,000 |   |   | $ | 655,000 |   |

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| Item 15. | Exhibits, Financial Statement Schedules, and Reports on Form 8-K |
|----------|------------------------------------------------------------------|

|            |                                                                                                                                                                                                       |                    | Incorporated by Reference |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------|---------------------------|
| Exhibit No | Description                                                                                                                                                                                                | FiledwithThisForm10-K/A | Form                      | Filing Date | Exhibit No. |
| 31.1            | Certification of the Chief Executive Officer required by Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | X                       |                      |   |   |
| 31.2            | Certification of the Chief Financial Officer required by Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | X                       |                      |   |   |
| 32.1            | Certification of the Chief Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                             | X                       |                      |   |   |
| 32.2            | Certification of the Chief Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                             | X                       |                      |   |   |

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|   | MEMSIC, INC. |                    |
|--------|--------------|-------------------------|
|   | (Registrant) |                    |
|   |         |                    |   |
|   | By:          | /s/ Yang Zhao      |   |
|   |         | Yang Zhao               |   |
|   |         | Chief Executive Officer |   |
|   |         | and President           |   |