Company:  FSI INTERNATIONAL INC
Form Type:  10-Q
Filing Date:  12/29/2011 
CIK:  0000841692 
Address:  3455 LYMAN BLVD. 
City, State, Zip:  CHASKA, Minnesota 55318 
Telephone:  (952) 448-5440 
Fiscal Year:  08/27 
Description of Business
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  FORM 10-Q
    PART I. ITEM 1. FINANCIAL STATEMENTS
      FINANCIAL STATEMENTS
        BALANCE SHEET
        BALANCE SHEET
        INCOME STATEMENT
        CASH FLOW
        NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
      ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL ...
      ITEM 3. QUANTATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
      ITEM 4. CONTROLS AND PROCEDURES
    PART II. OTHER INFORMATION
      ITEM 1. Legal Proceedings
      ITEM 1.A. Risk Factors
      ITEM 2. Unregistered Sales of Equity Securities and Use of ...
      ITEM 3. Defaults upon Senior Securities
      ITEM 5. Other Information
      ITEM 6. Exhibits
    SIGNATURE
    INDEX TO EXHIBITS
  EXHIBIT 10.1
  EXHIBIT 31.1
    CERTIFICATIONS
  EXHIBIT 31.2
    CERTIFICATIONS
  EXHIBIT 32.1
    CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL ...