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                                                                  EXHIBIT 10.23

February 1, 1998

Vincent F. Ratford
5689 Snowdon Place
San Jose, California 95138

Dear Vincent:

        It give us a great pleasure to extend this offer of employment to you
with Virage Logic Corporation. Virage Logic is an emerging semiconductor startup
and will greatly benefit from your contributions. To be sure that you understand
the terms and conditions of this offer of employment, I would like to detail
them below:

        This offer is conditioned on Virage Logic getting a commitment from
investors to close financing in the next 2-4 weeks or get a very firm commitment
to secure such financing.

        Your position will be Vice President of worldwide marketing and sales
reporting to me. In this position you will receive a base salary of $140,000 per
year plus the following compensation package:

        1.    $10,000 bonus if Virage Logic realizes $2.5 Million in sales in
              total (including the pre booked sales) for the fiscal year 1998
              ending September 30, 1998.

        2.    Additional $30,000 bonus (prorated from $2.5M) if Virage Logic
              realizes $5.0 Million (including the pre booked sales) in sales
              for the fiscal year 1998 ending September 30, 1998.

        3.    Additional $20,000 bonus (prorated from $5.0M) if Virage Logic
              realizes $6.0M.

        The bonus will be paid every quarter as Virage Logic hits the target
millstones.

        In addition to this, we would like to offer you 200,000 (Two Hundred
Thousand) Founders shares of Virage Logic Corporation to be vested over four
years and subject to the board of directors approval.

        In the event that your employment is terminated for reason other than
for cause following a change of control of the company, 25% of the remaining
unvested stock will vest and become immediately exercisable. In addition, you
will receive 3 months of base salary as severance pay.

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Vincent F. Ratford
February 1, 1998
Page 2

        If the company is acquired after you have been with Virage Logic more
than one year, all unvested shares become immediately fully vested and subject
to the same constrained put forth on the shares of the key personal of the
company.

        You will be eligible for all the standard company benefits, including a
full medical and dental coverage as of the date of hire. Two weeks of vacation
and 10 paid holidays.

        As is normal practice, this offer is contingent upon verification of
work authorization as required by the Immigration Reform and Control Act of
1986, as well as your signing the "Employment Invention and Confidential
Information Agreement." I have enclosed a copy of the Employment Invention and
Confidential Information Agreement for your review.

        If you find the terms of this offer acceptable, please sign below
conveying your acceptance and indicate a start date prior to returning this
letter. Retain the enclosed copy of this letter for your records. Vin, we are
excited about the opportunity to have you join our Company and personally I am
very excited to work with you. We are confident you will make a significant
contribution to the success and future of Virage Logic Corporation. We certainly
look forward to an affirmation reply to his offer by February 4, 1998.

Very truly yours,

Adam Kablanian
President and CEO

/s/  Vincent Ratford                    2/5/98
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Signature of Applicant                  Start Date<PAGE>   1

                                                                   EXHIBIT 10.24

August 6, 1998

Raymond Leung
4018 Ben Lomond Drive
Palo Alto, California 94306

Dear Raymond:

        It gives us a great pleasure to extend this offer of employment to you
with Virage Logic Corporation. Virage Logic is an emerging semiconductor startup
and will greatly benefit from your contributions. To be sure that you understand
the terms and conditions of this offer of employment, I would like to detail
them below:

        Your position will be Vice President of Engineering operations and
reporting to Adam Kablanian. In this position you will receive a base salary of
$4,807.70 bi-weekly ($125,000 annualized), plus the following compensation
package:

        In addition to this, we would like to offer you 100,000 (One Hundred
Thousand) Founders shares of Virage Logic Corporation to be vested over four
years and subject to the board of directors approval and any legal requirements
of the Virage Logic Corporation Stock Option Plan.

        The vesting schedule will be as follows:

        -     Quarterly vesting for the first year of employment unless you
              voluntarily terminate you employment prior to completion of one
              year. Should you voluntarily terminate prior to one year of
              service you will forfeit all vested options.

        -     Quarterly thereafter for the remaining 75%.

        If the company is acquired and your position is eliminated, all unvested
shares become immediately fully vested and subject to the same constraints put
forth on the shares of the key personnel of the company.

        You will be eligible for all the standard company benefits, including a
full medical and dental coverage as of the date of hire. Two weeks of vacation,
five days sick leave and 10 paid holidays.

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Raymond Leung
August 6, 1998
Page 2

        As is normal practice, this offer is contingent upon verification of
work authorization as required by the Immigration Reform and Control Act of
1986, as well as your signing the "Employment Invention and Confidential
Information Agreement." I have enclosed a copy of the Employment Invention and
Confidential Information Agreement for your review.

        If you find the terms of this offer acceptable, please sign below
conveying your acceptance and indicate a start date prior to returning this
letter. Retain the enclosed copy of this letter for your records. Raymond, we
are excited about the opportunity to have you join our Company. We are confident
you will make a significant contribution to the success and future of Virage
Logic Corporation. We certainly look forward to an affirmation reply to his
offer by August 12, 1998.

Very truly yours,

Renac Hogan
Human Resources Manager

/s/ Raymond Leung                     8/26/98
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Signature of Applicant                Start Date<PAGE>   1

                                                                   EXHIBIT 10.25

April 5, 1999

James Pekarsky
3173 Monterey Blvd.
Oakland, California  94602

Dear James:

        It give us a great pleasure to extend this offer of employment to you
with Virage Logic Corporation. Virage Logic is an emerging semiconductor startup
and will greatly benefit from your contributions. To be sure that you understand
the terms and conditions of this offer of employment, I would like to detail
them below:

        Your position will be Vice President of Finance, CEO reporting to Adam
Kablanian. In this position you will receive a salary of $5,769.24 bi-weekly
($150,000 annualized).

        In addition to this, we would like to offer you 100,000 (One Hundred
Thousand) shares of Virage Logic Corporation to be vested over four years and
subject to the board of directors approval.

        In the event that your employment is terminated for reason other than
for cause, following a change of control during your first 12 months of
employment you will immediately vest 25% and if after 12 months, all remaining
unvested shares become immediately fully vested.

        You will be eligible for all the standard company benefits, including
401K, medical, dental and vision coverage as of your date of hire. Three weeks
of Paid Time Off and 10 paid holidays per year.

        As is normal practice, this offer is contingent upon verification of
work authorization as required by the Immigration Reform and Control Act of
1986, as well as your signing the "Employment Invention and Confidential
Information Agreement." I have enclosed a copy of the Employment Invention and
Confidential Information Agreement for your review.

<PAGE>   2

James Pekarsky
April 5, 1999
Page 2

        If you find the terms of this offer acceptable, please sign below
conveying your acceptance. Retain the enclosed copy of this letter for your
records. James, we are excited about the opportunity to have you join our
Company. We are confident you will make a significant contribution to the
success and future of Virage Logic Corporation. We certainly look forward to an
affirmation reply to his offer by April 12, 1999.

Very truly yours,

Remae Hogan
Human Resources Manager

/s/ James Pekarsky                          5/10/99
------------------------------------        ------------------------------------
Signature of Applicant                      Start Date<PAGE>   1

                                                                   EXHIBIT 10.26

January 18, 2000

Kenneth V. Rousseau
1341 Cerro Verde
San Jose, California  95120

Dear Ken,

It gives us a great pleasure to extend this offer to employment to join Virage
Logic Corporation. Virage Logic is an emerging semiconductor startup and we
believe that you can make a significant contribution to our company.

Your position will be Vice President, Software Development, reporting to Adam
Kablanian. In this position you will receive a salary of $5,769.23 bi-weekly
($150,000 annualized). You will also be eligible to participate in the VIP
Program. Your target bonus is 25% of your base salary. Virage Logic will
reimburse you relocation costs to move personal belongings and provide
transportation for you and your family to Seattle after one year of employment.

In addition to this, we would like to offer you 200,000 (Two Hundred Thousand)
shares of Virage Logic Corporation to be vested over four years and subject to
the board of directors approval. In the event that your employment is terminated
for reason other than for cause, following a change of control during your first
12 months of employment you will immediately vest 25% of your shares.

You will have the opportunity to participate according to the terms of the
respective plans, in a comprehensive package of benefits, including 401K,
medical, dental and vision coverage. In addition, you will be eligible for 3
weeks Paid Time Off and 10 paid holidays per year.

This offer is contingent upon your ability to present documentation evidencing
your compliance with terms of the Immigration Reform and Control Act of 1986, as
well as your signing the "Employment Invention and Confidential Information
Agreement." I have enclosed a copy of the Employment Invention and Confidential
Information Agreement for your review.

Further, this offer does not constitute, and may not be construed as, a
commitment to employment for any specific duration. Your employment with the
company will be at-will, which means that you may leave the Company or the
Company may require you to leave its employ, at any time, and for any reason.

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Kenneth V. Rousseau
January 18, 2000
Page 2

This letter sets forth the exclusive terms of your offer of employment, and you
acknowledge that you have not relied on any representations or statements,
whether oral or written, regarding your employment with Virage Logic.

Your signature below will signify your acceptance of our employment offer.
Retain the enclosed copy of this letter for your records. Ken, we are excited
about the opportunity to have you join our Company. We certainly look forward to
a prompt and positive reply to this offer by January 21, 2000.

Very truly yours,

Remae Hogan
Human Resources Manager

/s/ Kenneth V. Rousseau                     31 January 2000
------------------------------------        ------------------------------------
Signature of Applicant                      Start Date

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