Document:

September
      29, 2006

    

    

    Advanced
      Technology Acquisition Corp.

    14
      A
      Achimeir Street 

    Ramat
      Gan
      52587 Israel

    

    CRT
      Capital Group LLC

    262
      Harbor Drive

    Stamford,
      Connecticut 06902

    

    Re:
      Initial Public Offering

    

    Gentlemen:

    

    The
      undersigned director of Advanced Technology Acquisition Corp. (“Company”), in
      consideration of CRT Capital Group LLC (“CRT”) entering into a letter of intent
      (“Letter of Intent”) to underwrite an initial public offering of the securities
      of the Company (“IPO”) and embarking on the IPO process, hereby agrees as
      follows (certain capitalized terms used herein are defined in paragraph 9
      hereof): 

    

    1.
      If the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Pre-IPO Shares and IPO Shares beneficially owned
      by it
      in accordance with the majority of the votes cast by the non-affiliated holders
      of the IPO Shares.

    

    2.
      In the
      event that the Company fails to consummate a Business Combination within 18
      months from the effective date (“Effective Date”) of the registration statement
      relating to the IPO (or 24 months under the circumstances described in the
      prospectus relating to the IPO), the undersigned shall take all reasonable
      actions within such person’s power to cause (i) the Company to dissolve and
      liquidate the Trust Account to holders of IPO Shares as soon as reasonably
      practicable, and after approval of the Company's stockholders of a plan of
      dissolution and distribution and subject to the requirements of the Delaware
      General Corporation Law (the “DGCL”), including voting for the adoption of a
      resolution by the Board, prior to such Termination Date, pursuant to Section
      275(a) of the DGCL, which shall deem the dissolution of the Corporation
      advisable and (b) cause to be prepared such notices as are required by said
      Section 275(a) of the DGCL as promptly thereafter as possible, and (ii) vote
      his
      shares in favor of any plan of dissolution and distribution recommended by
      the
      Company's board of directors. The undersigned hereby waives any and all right,
      title, interest or claim of any kind in or to any distribution of the Trust
      Account and any remaining net assets of the Company as a result of such
      liquidation with respect to his Pre-IPO Shares (“Claim”) and hereby waives any
      Claim the undersigned may have in the future as a result of, or arising out
      of,
      any contracts or agreements with the Company and will not seek recourse against
      the Trust Account for any reason whatsoever. The undersigned hereby agrees
      that
      the Company shall be entitled to a reimbursement from the undersigned for any
      distribution of the Trust Account received by the undersigned in respect of
      such
      person’s Pre-IPO Shares. 

    

    3.
      The
      undersigned acknowledges and agrees that the Company will not consummate any
      Business Combination which involves a company which is affiliated with any
      of
      the initial stockholders unless the Company obtains an opinion from an
      independent investment banking firm that the business combination is fair to
      the
      Company’s stockholders from a financial point of view.

    

    4.
      Neither
      the undersigned, any member of the Immediate Family of the undersigned, nor
      any
      affiliate (“Affiliate”) of the undersigned will be entitled to receive and will
      not accept any compensation for services rendered to the Company prior to or
      in
      connection with the consummation of the Business Combination, provided that
      commencing on the Effective Date, LMS Nihul (“Related Party”), shall be allowed
      to charge the Company $10,000 per month, representing an allocable share of
      Related Party’s overhead, to compensate it for the Company’s use of Related
      Party’s offices, utilities and personnel. The undersigned shall also be entitled
      to reimbursement from the Company for its reasonable out-of-pocket expenses
      incurred in connection with the organization of the Company, the IPO, and
      certain activities on behalf of the Company, such as identifying and
      investigating possible targets for our initial Business
      Combination.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    5.
      Neither the undersigned, any member of the Immediate
      Family of
      the
      undersigned, nor any Affiliate of the undersigned will be entitled to receive
      or
      accept a finder’s fee or any other compensation in the event the undersigned,
      any member of the Immediate
      Family of
      the
      undersigned or any Affiliate of the undersigned originates a Business
      Combination.

    

    6.
      The
      undersigned agrees to serve as a director of the Company until the earlier
      of
      the consummation by the Company of a Business Combination or the dissolution
      and
      liquidation of the Company. The undersigned’s biographical information furnished
      to the Company and CRT and attached hereto as Exhibit A is true and accurate
      in
      all respects, does not omit any material information with respect to the
      undersigned’s background and contains all of the information required to be
      disclosed pursuant to Item 401 of Regulation S-K, promulgated under the
      Securities Act of 1933. The undersigned’s Questionnaire furnished to the Company
      and CRT and annexed as Exhibit B hereto is true and accurate in all respects.
      The undersigned represents and warrants that:

    

    a.
      he is
      not subject to, or a respondent in, any legal action for, any injunction,
      cease-and-desist order or order or stipulation to desist or refrain from any
      act
      or practice relating to the offering of securities in any
      jurisdiction;

    

    b.
      he has
      never been convicted of or pleaded guilty to any crime (i) involving any fraud
      or (ii) relating to any financial transaction or handling of funds of another
      person, or (iii) pertaining to any dealings in any securities and he is not
      currently a defendant in any such criminal proceeding; and

    

    c.
      he has
      never been suspended or expelled from membership in any securities or
      commodities exchange or association or had a securities or commodities license
      or registration denied, suspended or revoked.

    

    7.
      The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement and to serve as a director
      of
      the Company.

    

    8.
      This
      letter agreement shall be governed by and construed and enforced in accordance
      with the laws of the State of New York, without giving effect to conflicts
      of
      law principles that would result in the application of the substantive laws
      of
      another jurisdiction. The undersigned hereby (i) agrees that any action,
      proceeding or claim against him arising out of or relating in any way to this
      letter agreement (a “Proceeding”) shall be brought and enforced in the courts of
      the State of New York or of the United States of America for the Southern
      District of New York, and irrevocably submits to such jurisdiction, which
      jurisdiction shall be exclusive, (ii) waives any objection to such exclusive
      jurisdiction and that such courts represent an inconvenient forum and (iii)
      irrevocably agrees to appoint Corporation Service Company as agent for the
      service of process in the State of New York to receive, for the undersigned
      and
      on his behalf, service of process in any Proceeding. If for any reason such
      agent is unable to act as such, the undersigned will promptly notify the Company
      and CRT and appoint a substitute agent acceptable to each of the Company and
      CRT
      within 30 days and nothing in this letter will affect the right of either party
      to serve process in any other manner permitted by law.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    9.
      As
      used herein, (i) a “Business Combination” shall mean an acquisition by
merger,
      capital stock exchange, asset acquisition, stock purchase or other similar
      business combination with a technology or technology-related business that
      has
      operations or facilities located in Israel, or that intends to establish
      operations or facilities in Israel, such as research and development,
      manufacturing or executive offices, following the Company's initial business
      combination with a target business;
      (ii)
“Immediate
      Family” shall mean, with respect to any person, such person’s spouse, lineal
      descendents, father, mother, brothers or sisters (including any such relatives
      by adoption or marriage); (iii) “
      Insiders” shall mean all officers, directors and stockholders of the Company
      immediately prior to the IPO; (iv) “Pre-IPO Shares” shall mean all of the shares
      of Common Stock of the Company owned by an Insider prior to the IPO; and (v)
      “IPO Shares” shall mean the shares of Common Stock issued in the Company’s IPO;
and
      (vi)
“Trust Account” shall mean that certain trust account established with
      Continental Stock Transfer & Trust Company, as trustee, into which the
      Company will deposit the “funds to be held in trust,” as described in the
      Prospectus.

    

    

    

    [REMAINDER
      OF PAGE INTENTIONALLY BLANK. SIGNATURE PAGE FOLLOWS

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    
      	 	 	 	 
	/s/ Elisha
              Yanay	 	 	 
	
              
Elisha
              Yanay	 	 	
            
	 	 	 	 

    

     

     

     

     

    [Signature
      Page to Director and Officer
      Letter]

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    EXHIBIT
      A

    

    INSIDER
      BIOGRAPHY (AS INCLUDED IN S-1)

    

    Elisha
      Yanay
      has been
      a director since our inception. Since July 2004, Mr. Yanay has served as a
      Senior Vice President of Motorola, Inc., a global communications company. Mr.
      Yanay has been the General Manager of Motorola Israel Ltd. since 1990 and has
      been its Chairman since 2001. Prior to that, in the course of his 36 years
      with
      Motorola, Mr. Yanay served in a variety of positions, including as marketing
      manager for all signaling products in Israel and as Motorola Israel’s
      representative in the U.S. Mr. Yanay has served as the Chairman of the Israel
      Association of Electronics and Information Industries since January 2004. Mr.
      Yanay is also leading Education 2000, a forum for the expansion and enhancement
      of technological and scientific education in Israel, and is the Industry
      Representative on the Council for Higher Education, a position he has held
      since
      January 2002. Mr. Yanay received the Rothschild Prize for Innovation in 1980
      for
      the computerized irrigation system that he designed and developed. Mr. Yanay
      has
      a B.Sc. in Electronics Engineering from the Technion Institute of Technology
      in
      Haifa, Israel. In June 1997, in recognition of his personal initiative and
      contribution to the development and promotion of technological education in
      Israel, Mr. Yanay was named a Distinguished Fellow of the Technion Faculty
      of
      Electrical Engineering and an Honorary Fellow of the Tel-Aviv University Faculty
      of Engineering. In May 1998, Mr. Yanay was awarded Honorary Fellow of the
      Technion.

     

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    EXHIBIT
      B

    

    INSIDER
      D&O QUESTIONNAIRESeptember
      29, 2006

    

    

    Advanced
      Technology Acquisition Corp.

    14
      A
      Achimeir Street 

    Ramat
      Gan
      52587 Israel

    

    CRT
      Capital Group LLC

    262
      Harbor Drive

    Stamford,
      Connecticut 06902

    

    Re:
      Initial Public Offering

    

    Gentlemen:

    

    The
      undersigned director of Advanced Technology Acquisition Corp. (“Company”), in
      consideration of CRT Capital Group LLC (“CRT”) entering into a letter of intent
      (“Letter of Intent”) to underwrite an initial public offering of the securities
      of the Company (“IPO”) and embarking on the IPO process, hereby agrees as
      follows (certain capitalized terms used herein are defined in paragraph 9
      hereof): 

    

    1.
      If the
      Company solicits approval of its stockholders of a Business Combination, the
      undersigned will vote all Pre-IPO Shares and IPO Shares beneficially owned
      by it
      in accordance with the majority of the votes cast by the non-affiliated holders
      of the IPO Shares.

    

    2.
      In the
      event that the Company fails to consummate a Business Combination within 18
      months from the effective date (“Effective Date”) of the registration statement
      relating to the IPO (or 24 months under the circumstances described in the
      prospectus relating to the IPO), the undersigned shall take all reasonable
      actions within such person’s power to cause (i) the Company to dissolve and
      liquidate the Trust Account to holders of IPO Shares as soon as reasonably
      practicable, and after approval of the Company's stockholders of a plan of
      dissolution and distribution and subject to the requirements of the Delaware
      General Corporation Law (the “DGCL”), including voting for the adoption of a
      resolution by the Board, prior to such Termination Date, pursuant to Section
      275(a) of the DGCL, which shall deem the dissolution of the Corporation
      advisable and (b) cause to be prepared such notices as are required by said
      Section 275(a) of the DGCL as promptly thereafter as possible, and (ii) vote
      his
      shares in favor of any plan of dissolution and distribution recommended by
      the
      Company's board of directors. The undersigned hereby waives any and all right,
      title, interest or claim of any kind in or to any distribution of the Trust
      Account and any remaining net assets of the Company as a result of such
      liquidation with respect to his Pre-IPO Shares (“Claim”) and hereby waives any
      Claim the undersigned may have in the future as a result of, or arising out
      of,
      any contracts or agreements with the Company and will not seek recourse against
      the Trust Account for any reason whatsoever. The undersigned hereby agrees
      that
      the Company shall be entitled to a reimbursement from the undersigned for any
      distribution of the Trust Account received by the undersigned in respect of
      such
      person’s Pre-IPO Shares. 

    

    3.
      The
      undersigned acknowledges and agrees that the Company will not consummate any
      Business Combination which involves a company which is affiliated with any
      of
      the initial stockholders unless the Company obtains an opinion from an
      independent investment banking firm that the business combination is fair to
      the
      Company’s stockholders from a financial point of view.

    

    4.
      Neither
      the undersigned, any member of the Immediate Family of the undersigned, nor
      any
      affiliate (“Affiliate”) of the undersigned will be entitled to receive and will
      not accept any compensation for services rendered to the Company prior to or
      in
      connection with the consummation of the Business Combination, provided that
      commencing on the Effective Date, LMS Nihul (“Related Party”), shall be allowed
      to charge the Company $10,000 per month, representing an allocable share of
      Related Party’s overhead, to compensate it for the Company’s use of Related
      Party’s offices, utilities and personnel. The undersigned shall also be entitled
      to reimbursement from the Company for its reasonable out-of-pocket expenses
      incurred in connection with the organization of the Company, the IPO, and
      certain activities on behalf of the Company, such as identifying and
      investigating possible targets for our initial Business
      Combination.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    5.
      Neither the undersigned, any member of the Immediate
      Family of
      the
      undersigned, nor any Affiliate of the undersigned will be entitled to receive
      or
      accept a finder’s fee or any other compensation in the event the undersigned,
      any member of the Immediate
      Family of
      the
      undersigned or any Affiliate of the undersigned originates a Business
      Combination.

    

    6.
      The
      undersigned agrees to serve as a director of the Company until the earlier
      of
      the consummation by the Company of a Business Combination or the dissolution
      and
      liquidation of the Company. The undersigned’s biographical information furnished
      to the Company and CRT and attached hereto as Exhibit A is true and accurate
      in
      all respects, does not omit any material information with respect to the
      undersigned’s background and contains all of the information required to be
      disclosed pursuant to Item 401 of Regulation S-K, promulgated under the
      Securities Act of 1933. The undersigned’s Questionnaire furnished to the Company
      and CRT and annexed as Exhibit B hereto is true and accurate in all respects.
      The undersigned represents and warrants that:

    

    a.
      he is
      not subject to, or a respondent in, any legal action for, any injunction,
      cease-and-desist order or order or stipulation to desist or refrain from any
      act
      or practice relating to the offering of securities in any
      jurisdiction;

    

    b.
      he has
      never been convicted of or pleaded guilty to any crime (i) involving any fraud
      or (ii) relating to any financial transaction or handling of funds of another
      person, or (iii) pertaining to any dealings in any securities and he is not
      currently a defendant in any such criminal proceeding; and

    

    c.
      he has
      never been suspended or expelled from membership in any securities or
      commodities exchange or association or had a securities or commodities license
      or registration denied, suspended or revoked.

    

    7.
      The
      undersigned has full right and power, without violating any agreement by which
      he is bound, to enter into this letter agreement and to serve as a director
      of
      the Company.

    

    8.
      This
      letter agreement shall be governed by and construed and enforced in accordance
      with the laws of the State of New York, without giving effect to conflicts
      of
      law principles that would result in the application of the substantive laws
      of
      another jurisdiction. The undersigned hereby (i) agrees that any action,
      proceeding or claim against him arising out of or relating in any way to this
      letter agreement (a “Proceeding”) shall be brought and enforced in the courts of
      the State of New York or of the United States of America for the Southern
      District of New York, and irrevocably submits to such jurisdiction, which
      jurisdiction shall be exclusive, (ii) waives any objection to such exclusive
      jurisdiction and that such courts represent an inconvenient forum and (iii)
      irrevocably agrees to appoint Corporation Service Company as agent for the
      service of process in the State of New York to receive, for the undersigned
      and
      on his behalf, service of process in any Proceeding. If for any reason such
      agent is unable to act as such, the undersigned will promptly notify the Company
      and CRT and appoint a substitute agent acceptable to each of the Company and
      CRT
      within 30 days and nothing in this letter will affect the right of either party
      to serve process in any other manner permitted by law.

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    9.
      As
      used herein, (i) a “Business Combination” shall mean an acquisition by
merger,
      capital stock exchange, asset acquisition, stock purchase or other similar
      business combination with a technology or technology-related business that
      has
      operations or facilities located in Israel, or that intends to establish
      operations or facilities in Israel, such as research and development,
      manufacturing or executive offices, following the Company's initial business
      combination with a target business;
      (ii)
“Immediate
      Family” shall mean, with respect to any person, such person’s spouse, lineal
      descendents, father, mother, brothers or sisters (including any such relatives
      by adoption or marriage); (iii) “ Insiders” shall mean all officers, directors
      and stockholders of the Company immediately prior to the IPO; (iv) “Pre-IPO
      Shares” shall mean all of the shares of Common Stock of the Company owned by an
      Insider prior to the IPO; and (v) “IPO Shares” shall mean the shares of Common
      Stock issued in the Company’s IPO; and (vi) “Trust Account” shall mean that
      certain trust account established with Continental Stock Transfer & Trust
      Company, as trustee, into which the Company will deposit the “funds to be held
      in trust,” as described in the Prospectus.

    

    

    

    [REMAINDER
      OF PAGE INTENTIONALLY BLANK. SIGNATURE PAGE FOLLOWS]

    

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    
      	 	 	 	 
	/s/ Avigdor
              Kaplan	 	 	 
	
              
Avigdor
              Kaplan	 	 	
            
	 	 	 	 

    

     

     

     

     

    [Signature
      Page to Director and Officer
      Letter]

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    EXHIBIT
      A

    

    INSIDER
      BIOGRAPHY (AS INCLUDED IN S-1)

    

    Avigdor
      Kaplan
      has
      served as a director since our inception. Since 1997, Mr. Kaplan has been the
      President and Chief Executive Officer of CLAL Insurance Pensions & Finance
      Group, one of Israel's leading insurance, mutual funds, pension funds and
      financial services groups. From 1992 through 1997, Mr. Kaplan was the Director
      General of Kupat Holim Clalit, Israel's first and largest health management
      organization (HMO). Prior to that, Mr. Kaplan held a series of positions of
      increasing responsibility at Israel Aircraft Industries and the Israel Police.
      Mr. Kaplan has served and serves as chairman and board member on numerous Boards
      of Directors of the subsidiaries of CLAL Insurance Group and as Chairman of
      the
      Board of Company for the Development of Cancer Cures and Rheumatic Diseases.
      Mr.
      Kaplan has a B.A in economics and statistics from Hebrew University in
      Jerusalem, Israel and a M.Sc. in Industrial Management Engineering from the
      Technion Institute of Technology in Haifa, Israel.

     

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    EXHIBIT
      B

    

    INSIDER
      D&O QUESTIONNAIRE

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