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Exhibit 10.33.1
 
 LSI Corporation
    
    1 800 372 24471110 American Parkway NE
    
    lsi.comAllentown, PA 18109
  To:
    
    Denis RegimbalRe:
    
    Benefits Summary Pursuant to the Agere Systems Inc.s Officer Severance Policy
 Leave of Absence:
    
    1/5/08 -- 2/28/09
    
    Termination Date:
    
    3/1/09Annual Salary:
    
    $300,000
    
    Annual Target Bonus:
    
    $225,000 (75%)
  
    
    Separation Agreement.This Agreement is intended to formalize and set forth the terms of your
separation under the Agere Systems Inc. Officer Severance Policy. This Agreement supersedes
and replaces in its entirety the provisions of the Officer Severance Policy.
    
    Last Work Date.January 4, 2008. Your final paycheck for January 2008 service and for
accrued but unused vacation shall be paid on or about February 1, 2008.
    
    Leave of Absence (LOA); Payments.Agere agrees to place you on a LOA from January 5, 2008
through February 28, 2009 following which time you will terminate from Ageres payroll. During
the LOA, Agere shall pay you leave of absence payments (the LOA Payments) in an amount equal
to One Million and Fifty Thousand Dollars ($1,050,000) as follows:
 February 1, 2008
    
    $
    42,857.00March 1, 2008
    
    $
    42,857.00April 1, 2008
    
    $
    42,857.00May 1, 2008
    
    $
    42,857.00June 1, 2008
    
    $
    42,857.00July 1, 2008
    
    $
    42,857.00August 1, 2008
    
    $
    42,857.00September 1, 2008
    
    $
    42,857.00October 1, 2008
    
    $
    42,857.00November 1, 2008
    
    $
    42,857.00December 1, 2008
    
    $
    492,859.00January 1, 2009
    
    $
    42,857.00February 1, 2009
    
    $
    42,857.00March 1, 2009
    
    $
    42,857.00Total:
    
    $
    1,050,000.00




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
    
    Release and Waiver of Claims.As a condition to receiving the LOA payments and the other
benefits hereunder, you must sign a general waiver and release agreement in the attached form.
    
    Equity.Upon your termination on March 1, 2009, all your unvested options and restricted
stock units shall vest and shall be treated in accordance with the provisions of the
applicable agreements and plans pursuant to which they were granted.
    
    Section 280G Gross-Up.To the extent applicable, all payments hereunder and any acceleration
of equity awards that become subject to excise taxes shall be grossed up for purposes of
Section 280G of the Internal Revenue Code of 1986, as amended.
    
    Qualified and Non-Qualified Plan Benefits:You will receive a payout of your accrued
retirement benefits, including payments under the Agere Systems Inc. Management 401(k) Plan,
the Agere Systems Inc. Pension Plan and the Agere Systems Inc. Supplemental Pension Plan, in
accordance with the terms of the applicable plan.
    
    Benefits:You are eligible to continue your participation in Ageres medical, dental and
vision and insurance plans during the LOA period in the same manner as an active employee.
Upon termination you will be eligible to continue your participation in Ageres medical,
dental and vision plans through COBRA for up to 18 months. Following your termination, Agere
will pay for COBRA benefits and pay for and continue your other insurance coverage through the
earlier of (a) December 31, 2009 or (b) such date as you are receiving benefits from another
employer.
  Agere Systems Inc./s/ Denis Regimbal
    
    By:
    
    /s/ Jean F. RankinDenis Regimbal
    
    Name:
    
    Jean F. RankinTitle:
    
    PresidentDate: November 12, 2007
    
    Date:
    
    November 12, 2007
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GENERAL WAIVER AND RELEASE AGREEMENT
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/s/ Denis Regimbal
Denis RegimbalDate: November 12, 2007
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