Exhibit 10.01

INCREMENTAL TERM LOAN COMMITMENT AGREEMENT

May 16, 2008

Fairchild Semiconductor International, Inc.

82 Running Hill Road

South Portland, Maine 04106

Fairchild Semiconductor
Corporation

82 Running Hill Road

South Portland, Maine 04106



|Re: | Incremental Term Loan Commitments
|--- | ---------------------------------

Ladies and Gentlemen:

Reference is hereby made to the Credit Agreement, dated as of June 26, 2006, among Fairchild Semiconductor International, Inc. (Holdings),
Fairchild Semiconductor Corporation (the Borrower), the lenders from time to time party thereto, Deutsche Bank Trust Company Americas, as administrative agent (in such capacity, the Administrative Agent), Bank
of America, N.A., as syndication agent, and Citicorp USA, Inc., Citizens Bank of Massachusetts and JPMorgan Chase Bank, N.A., as co-documentation agents (as amended, modified or supplemented from time to time, the Credit
Agreement). Unless otherwise defined herein, capitalized terms used herein shall have the respective meanings set forth in the Credit Agreement.

Each lender (each, an Incremental Term Loan Lender) party to this letter agreement (this Agreement) hereby severally agrees to provide the Incremental Term Loan Commitment set forth opposite its name on
Annex I attached hereto (for each such Incremental Term Loan Lender, its Incremental Term Loan Commitment). Each Incremental Term Loan Commitment provided pursuant to this Agreement shall be subject to all of the terms and
conditions set forth in the Credit Agreement, including, without limitation, Sections 1.01(e) and 1.14 thereof.

Each Incremental Term Loan Lender, the
Borrower and the Administrative Agent acknowledge and agree that the Incremental Term Loan Commitments provided pursuant to this Agreement shall constitute Incremental Term Loan Commitments of the respective Tranche specified in Annex I
attached hereto and, upon the incurrence of Incremental Term Loans pursuant to such Incremental Term Loan Commitments, shall constitute Incremental Term Loans under such specified Tranche for all purposes of the Credit Agreement and the other
applicable Credit Documents. Each Incremental Term Loan Lender, the Borrower and the Administrative Agent further agree that, with respect to the Incremental Term Loan Commitment provided by each Incremental Term Loan Lender pursuant to this
Agreement, such Incremental Term Loan Lender shall receive from the Borrower such upfront fees, unutilized commitment fees and/or other fees, if any, as may be separately agreed to in writing with the Borrower and the Administrative Agent, all of
which fees shall be due and payable to such Incremental Term Loan Lender on the terms and conditions set forth in each such separate agreement.

Furthermore, each of the parties to this Agreement hereby agrees to the terms and conditions set forth on Annex I hereto in respect of each Incremental Term Loan Commitment provided pursuant to this Agreement.



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Each Incremental Term Loan Lender party to this Agreement, to the extent not already a party to the Credit Agreement as a
Lender thereunder, (i) confirms that it is an Eligible Transferee, (ii) confirms that it has received a copy of the Credit Agreement and the other Credit Documents, together with copies of the financial statements referred to therein and
such other documents and information as it has deemed appropriate to make its own credit analysis and decision to enter into this Agreement and to become a Lender under the Credit Agreement, (iii) agrees that it will, independently and without
reliance upon the Administrative Agent or any other Lender and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in taking or not taking action under the Credit Agreement and
the other Credit Documents, (iv) appoints and authorizes the Administrative Agent and the Collateral Agent to take such action as agent on its behalf and to exercise such powers under the Credit Agreement and the other Credit Documents as are
delegated to the Administrative Agent and the Collateral Agent, as the case may be, by the terms thereof, together with such powers as are reasonably incidental thereto, (v) agrees that it will perform in accordance with their terms all of the
obligations which by the terms of the Credit Agreement and the other Credit Documents are required to be performed by it as a Lender, and (vi) in the case of each Incremental Term Loan Lender organized under the laws of a jurisdiction outside
the United States, attaches the forms and/or Section 4.04(b)(ii) Certificate referred to in Section 4.04(b) of the Credit Agreement, certifying as to its entitlement as of the date hereof to a complete exemption from United States
withholding taxes with respect to all payments to be made to it by the Borrower under the Credit Agreement and the other Credit Documents.

Upon the date
of (i) the execution of a counterpart of this Agreement by each Incremental Term Loan Lender, the Administrative Agent, the Borrower, Holdings and each Subsidiary Guarantor, (ii) the delivery to the Administrative Agent of a fully executed
counterpart (including by way of facsimile or other electronic transmission) hereof and (iii) the payment of any fees then due and payable in connection herewith (such date, the Agreement Effective Date), each Incremental
Term Loan Lender party hereto (x) shall be obligated to make the Incremental Term Loans provided to be made by it as provided in this Agreement on the terms, and subject to the conditions, set forth in the Credit Agreement and in this Agreement
and (y) to the extent provided in this Agreement, shall have the rights and obligations of a Lender under the Credit Agreement and under the other applicable Credit Documents.

The Borrower acknowledges and agrees that (i) it shall be liable for all Obligations with respect to the Incremental Term Loan Commitments provided hereby including, without limitation, all Incremental Term Loans
made pursuant thereto, and (ii) all such Obligations (including all such Incremental Term Loans) shall be entitled to the benefits of the respective Security Documents and the Guaranties.

Each of the Guarantors (a) acknowledges and consents to the acceptance by the Borrower of the Incremental Term Loan Commitments and the incurrence of the
Incremental Term Loans pursuant to the Incremental Term Loan Commitments, (b) agrees that the acceptance by the Borrower of the Incremental Term Loan Commitments and the incurrence of the Incremental Term Loans pursuant to the Incremental Term
Loan Commitments shall not (i) operate to reduce or discharge such Guarantors obligations under the Credit Documents or (ii) impair or otherwise adversely affect any of the Liens granted by such Guarantor in or pursuant to the Credit
Documents, and (c) agrees that the Incremental Term Loans incurred pursuant to the Incremental Term Loan Commitments shall constitute Guaranteed Obligations (as defined in the Credit Agreement and as defined in the Subsidiaries Guaranty) and
Obligations (as defined in the Security Documents).

Attached hereto as Annex II is the officers certificate required to be delivered pursuant
to clause (iii) of the definition of Incremental Loan Commitment Requirements appearing in Section 11.01 of the Credit Agreement certifying that the conditions set forth in clauses (i) and (ii) of the definition of
Incremental Loan Commitment Requirements appearing in Section 11.01 of the Credit Agreement have been satisfied (together with calculations demonstrating same (where applicable) in reasonable detail).



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Attached hereto as Annex III are opinions of Gibson, Dunn & Crutcher LLP and Paul D. Delva, counsel to
the respective Credit Parties, delivered as required pursuant to clause (v) of the definition of Incremental Loan Commitment Requirements appearing in Section 11.01 of the Credit Agreement.

Attached hereto as Annex IV are true and correct copies of officers certificates, board of director resolutions and good standing certificates of the Credit
Parties required to be delivered pursuant to clause (vi) of the definition of Incremental Loan Commitment Requirements appearing in Section 11.01 of the Credit Agreement.

You may accept this Agreement by signing the enclosed copies in the space provided below, and returning one copy of same to us before the close of business on
May 16, 2008. If you do not so accept this Agreement by such time, our Incremental Term Loan Commitments set forth in this Agreement shall be deemed canceled.

After the execution and delivery to the Administrative Agent of a fully executed copy of this Agreement (including by way of counterparts and by facsimile or other electronic transmission) by the parties hereto, this Agreement may only be
changed, modified or varied by written instrument in accordance with the requirements for the modification of Credit Documents pursuant to Section 13.12 of the Credit Agreement.

In the event of any conflict between the terms of this Agreement and those of the Credit Agreement, the terms of the Credit Agreement shall control.

THIS AGREEMENT SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

[SIGNATURE PAGES FOLLOW]



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|                                   |  |                          
|---------------------------------- |  | -------------------------
|Very truly yours,                 
|                                  
|BANK OF AMERICA, N.A.             
|                                   | 
|By:                                |  | /s/ Jane A. Parker       
|Name:                              |  | Jane A. Parker           
|Title:                             |  | Senior Vice President    
|                                  
|JPMORGAN CHASE BANK, N.A.         
|                                   | 
|By:                                |  | /s/ David F. Gibbs       
|Name:                              |  | David F. Gibbs           
|Title:                             |  | Managing Director        
|                                  
|HSBC BANK USA, N.A.               
|                                   | 
|By:                                |  | /s/ Elise Russo          
|Name:                              |  | Elise Russo              
|Title:                             |  | First Vice President     
|                                  
|COMERICA BANK                     
|                                   | 
|By:                                |  | /s/ Chris Rice           
|Name:                              |  | Chris Rice               
|Title:                             |  | Corporate Banking Officer
|                                  
|RBS CITIZENS, NATIONAL ASSOCIATION
|                                   | 
|By:                                |  | /s/ William F. Granchelli
|Name:                              |  | William F. Granchelli    
|Title:                             |  | Senior Vice President    
|                                  
|RAYMOND JAMES BANK, FSB           
|                                   | 
|By:                                |  | /s/ Andrew D. Hahn       
|Name:                              |  | Andrew D. Hahn           
|Title:                             |  | Senior Vice President    
|                                  
|MERRILL LYNCH BANK USA            
|                                   | 
|By:                                |  | /s/ Derek Befus          
|Name:                              |  | Derek Befus              
|Title:                             |  | Vice President           

[SIGNATURE PAGES FOLLOW]



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|                                     |  |                         
|------------------------------------ |  | ------------------------
|DEUTSCHE BANK TRUST COMPANY AMERICAS
|                                     | 
|By:                                  |  | /s/ Paul OLeary        
|Name:                                |  | Paul OLeary            
|Title:                               |  | Director                
|                                    
|DEUTSCHE BANK TRUST COMPANY AMERICAS
|                                     | 
|By:                                  |  | /s/ Marcus M. Tarkington
|Name:                                |  | Marcus M. Tarkington    
|Title:                               |  | Director                
|                                    
|GOLDMAN SACHS CREDIT PARTNERS L.P.  
|                                     | 
|By:                                  |  | /s/ Mark Walton         
|Name:                                |  | Mark Walton             
|Title:                               |  | Authorized Signatory    

[SIGNATURE PAGES FOLLOW]



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Agreed and Accepted as of the date set forth above.



|                                     |  | 
|------------------------------------ |  | 
|FAIRCHILD SEMICONDUCTOR CORPORATION,

|                       |  |                                        
|---------------------- |  | ---------------------------------------
|a Delaware corporation
|                       | 
|By:                    |  | /s/ Robin A. Sawyer                    
|Name:                  |  | Robin A. Sawyer                        
|Title:                 |  | Vice President and Corporate Controller

|                                     |  | 
|------------------------------------ |  | 
|                                    
|DEUTSCHE BANK TRUST COMPANY AMERICAS

|                                     |  |                 
|------------------------------------ |  | ----------------
|                                     | 
|By:                                  |  | /s/ Paul OLeary
|Name:                                |  | Paul OLeary    
|Title:                               |  | Director        
|                                    
|DEUTSCHE BANK TRUST COMPANY AMERICAS

|       |  |                         
|------ |  | ------------------------
|       | 
|By:    |  | /s/ Marcus M. Tarkington
|Name:  |  | Marcus M. Tarkington    
|Title: |  | Director                

Each Guarantor acknowledges and agrees to each the foregoing provisions of this Incremental Term Loan Commitment
Agreement and to the incurrence of the Incremental Term Loans to be made pursuant thereto.



|                                             |  | 
|-------------------------------------------- |  | 
|FAIRCHILD SEMICONDUCTOR INTERNATIONAL, INC.,

|                       |  |                                        
|---------------------- |  | ---------------------------------------
|a Delaware corporation
|                       | 
|By:                    |  | /s/ Robin A. Sawyer                    
|Name:                  |  | Robin A. Sawyer                        
|Title:                 |  | Vice President and Corporate Controller

|                                                                          |  | 
|------------------------------------------------------------------------- |  | 
|                                                                         
|FAIRCHILD SEMICONDUCTOR CORPORATION OF CALIFORNIA, a Delaware corporation

|                                                         |  | 
|-------------------------------------------------------- |  | 
|KOTA MICROCIRCUITS, INC., a Colorado corporation        
|QT OPTOELECTRONICS, INC., a Delaware corporation        
|QT OPTOELECTRONICS, a California corporation            
|FAIRCHILD ENERGY, LLC, a Maine limited liability company
|ROCTOV, LLC, a Delaware limited liability company       

|       |  |                    
|------ |  | -------------------
|       | 
|By:    |  | /s/ Robin A. Sawyer
|Name:  |  | Robin A. Sawyer    
|Title: |  | Vice President     



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ANNEX I

TERMS AND CONDITIONS FOR

INCREMENTAL TERM LOAN COMMITMENT AGREEMENT

Dated as of May 16, 2008



|1. | Name of Borrower:                    Fairchild Semiconductor Corporation
|-- | ------------------------------------------------------------------------



|2. | B-1 Incremental Term Loan Commitment Amounts (as of the Agreement Effective Date):
|-- | ----------------------------------------------------------------------------------



|                                     |  |                                           
|------------------------------------ |  | ------------------------------------------
|Name of Incremental Term Loan Lender |  | Amount of Incremental Term Loan Commitment
|Bank of America, N.A.                |  | $88,000,000                               
|JPMorgan Chase Bank, N.A.            |  | $15,000,000                               
|HSBC Bank USA, N.A.                  |  | $13,000,000                               
|Comerica Bank                        |  | $10,000,000                               
|RBS Citizens, National Association   |  | $10,000,000                               
|Raymond James Bank, FSB              |  | $8,000,000                                
|Merrill Lynch Bank USA               |  | $2,000,000                                
|Deutsche Bank Trust Company Americas |  | $2,000,000                                
|Goldman Sachs Credit Partners L.P.   |  | $2,000,000                                
|Total                                |  | $150,000,000                              



|                                                                                                                          |  |                           
|------------------------------------------------------------------------------------------------------------------------- |  | --------------------------
|3.      Designation of Tranche of Incremental Term Loan Commitments (and Incremental Term Loans to be funded thereunder): |  | B-1 Incremental Term Loans
|                                                                                                                          | 
|4.      B-1 Incremental Term Loan Borrowing Date:                                                                         |  | May 16, 2008              
|                                                                                                                          | 
|5.      B-1 Incremental Term Loan Maturity Date:                                                                          |  | June 26, 2013             
|                                                                                                                         
|6.      Dates for, and amounts of, B-1 Incremental Term Loan Scheduled
Repayments:                                       



|                         |  |         
|------------------------ |  | --------
|Scheduled Repayment Date |  | Amount  
|June 30, 2008            |  | $375,000
|September 30, 2008       |  | $375,000
|December 31, 2008        |  | $375,000
|March 31, 2009           |  | $375,000
|June 30, 2009            |  | $375,000
|September 30, 2009       |  | $375,000
|December 31, 2009        |  | $375,000
|March 31, 2010           |  | $375,000
|June 30, 2010            |  | $375,000
|September 30, 2010       |  | $375,000
|December 31, 2010        |  | $375,000
|March 31, 2011           |  | $375,000
|June 30, 2011            |  | $375,000
|September 30, 2011       |  | $375,000
|December 31, 2011        |  | $375,000



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|                                                                   |  |                                                                
|------------------------------------------------------------------ |  | ---------------------------------------------------------------
|March 31, 2012                                                     |  | $ 375,000                                                      
|June 30, 2012                                                      |  | $375,000                                                       
|September 30, 2012                                                 |  | $375,000                                                       
|December 31, 2012                                                  |  | $375,000                                                       
|March 31, 2013                                                     |  | $375,000                                                       
|Incremental Term Loan Maturity Date for B-1 Incremental Term Loans |  | Outstanding principal balance of the B-1 Incremental Term Loans



|                            |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|--------------------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|7.      Applicable Margins: |  | B-1 Incremental Term Loans maintained as Eurodollar Loans:         2.50%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                            |  | B-1 Incremental Term Loans maintained as Base Rate Loans:          1.50%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                            | 
|8.      Use of Proceeds:    |  | Notwithstanding that Section 7.08 of the Credit Agreement permits the Borrower to use the proceeds of Incremental Term Loans for working capital and general corporate purposes of the
Borrower and its Subsidiaries, including to finance Permitted Acquisitions and to refinance the 5% Convertible Senior Subordinated Notes, the Borrower agrees to use the proceeds of the B-1 Incremental Term Loans solely (in addition to cash on hand
and availability under the Revolving Loan Commitments) to refinance in full the outstanding 5% Convertible Senior Subordinated Notes. The Borrower agrees that the failure to comply with the foregoing sentence shall be an immediate Event of Default
under the Credit Agreement.



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ANNEX II

OFFICERS CERTIFICATE

May 16, 2008

Reference is made to the Credit Agreement (as amended, modified, supplemented, increased and extended from time to time, the Credit Agreement) dated as of June 26, 2006 among Fairchild
Semiconductor International, Inc., a Delaware corporation (Holdings), Fairchild Semiconductor Corporation, a Delaware corporation (the Borrower), the Lenders identified therein and Deutsche Bank Trust Company
Americas, as Administrative Agent. Capitalized terms used herein and not defined herein shall have the meanings assigned to such terms in the Credit Agreement.

In connection with the provision of Incremental Term Loan Commitments on the date hereof in the aggregate principal amount of $150 million, the undersigned, the Senior Director, Risk Management and Assistant Treasurer of Holdings, hereby
certifies on behalf of Holdings as follows:

1. No Default or Event of Default exists or would result from the provision of such Incremental Term Loan
Commitments on the date hereof.

2. All of the representations and warranties contained in the Credit Documents are true and correct in all material
respects on the date hereof after giving effect to the provision of such Incremental Term Loan Commitments (unless stated to relate to a specific earlier date, in which case such representations and warranties shall be true and correct in all
material respects as of such earlier date).

3. Attached hereto as Annex 1 are calculations demonstrating (in reasonable detail) compliance with the
covenants contained in Sections 9.07, 9.08 and 9.09 of the Credit Agreement for the Calculation Period most recently ended prior to the date hereof, on a Pro Forma Basis, as if the relevant Incremental Term Loans to be made pursuant to such
Incremental Term Loan Commitments (assuming the full utilization thereof) had been incurred, and the proceeds thereof had been applied, on the first day of such Calculation Period.

[SIGNATURE PAGE FOLLOWS]



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IN WITNESS WHEREOF, I have executed this Officers Certificate as of the date set forth above.



FAIRCHILD SEMICONDUCTOR INTERNATIONAL, INC.,a Delaware corporationBy:

/s/ Carla A. DupuisName:

Carla A. DupuisTitle:

Senior Director, Risk Management and Assistant Treasurer