<SUBMISSION>
<ACCESSION-NUMBER>0000891618-04-000530
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20040210
<ITEMS>9
<FILING-DATE>20040211
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CADENCE DESIGN SYSTEMS INC
<CIK>0000813672
<ASSIGNED-SIC>7372
<IRS-NUMBER>770148231
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0102
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-10606
<FILM-NUMBER>04583456
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>2655 SEELY ROAD BLDG 5
<CITY>SAN JOSE
<STATE>CA
<ZIP>95134
<PHONE>4089431234
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>555 RIVER OAKS PARKWAY
<CITY>SAN JOSE
<STATE>CA
<ZIP>95134
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ECAD INC /DE/
<DATE-CHANGED>19880609
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>f96370e8vk.htm
<DESCRIPTION>FORM 8-K
<TEXT>
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<TITLE>e8vk</TITLE>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

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<P align="center"><FONT size="4"><B>SECURITIES AND EXCHANGE COMMISSION</B></FONT>

<DIV align="center"><FONT size="3"><B>WASHINGTON, D.C. 20549</B>
</FONT></DIV>

<P>
<HR noshade width="26%" align="center" size="1">
<P>

<P align="center"><FONT size="5"><B>FORM 8-K</B></FONT>

<P align="center"><FONT size="2"><B>CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF<BR>
THE SECURITIES EXCHANGE ACT OF 1934</B>
</FONT>

<P align="center"><FONT size="2">Date of Report (Date of Earliest Event Reported):&nbsp;&nbsp;&nbsp;<B>February&nbsp;10, 2004</B>
</FONT>

<P align="center"><FONT size="6"><B>CADENCE DESIGN SYSTEMS, INC.</B></FONT>

<P align="center"><FONT size="2">(Exact Name of Registrant as Specified in its Charter)
</FONT>

<DIV align="center">
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%">
<TR valign="bottom">
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><FONT size="2"><B>DELAWARE</B></FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="center" valign="top"><FONT size="2"><B>1-10606</B></FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="center" valign="top"><FONT size="2"><B>77-0148231</B></FONT></TD>
</TR>
<TR valign="bottom">
    <TD colspan="5"><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top" nowrap><FONT size="2">(State or Other Jurisdiction of</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="center" valign="top" nowrap><FONT size="2">(Commission File Number)</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="center" valign="top" nowrap><FONT size="2">(IRS Employer Identification No.)</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><FONT size="2">Incorporation)</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="center" valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="center" valign="top"><FONT size="2">&nbsp;</FONT></TD>
</TR>
</TABLE>
</DIV>

<P align="center"><FONT size="2"><B>2655 SEELY AVENUE, BUILDING 5<BR>
SAN JOSE, CALIFORNIA 95134</B>
</FONT>

<P align="center"><FONT size="2">(Address of Principal Executive Offices) (Zip Code)
</FONT>

<P align="center"><FONT size="2">Registrant&#146;s Telephone Number, Including Area Code:&nbsp;&nbsp;&nbsp;<B>(408)&nbsp;943-1234</B>
</FONT>

<P>
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<P align="center"><FONT size="2">&nbsp;
</FONT>

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<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

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<TR><TD></TD><TD colspan="8"><A HREF="#000">Item 9. Regulation FD Disclosure</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">Signature</A></TD></TR>
<TR><TD colspan="9"><A HREF="#002">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="f96370exv99w1.htm">EXHIBIT 99.1</A></TD></TR>
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<P align="left"><FONT size="2">Item&nbsp;9.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Regulation&nbsp;FD Disclosure
</FONT>

<P align="left"><FONT size="2">On February&nbsp;10, 2004, Cadence Design Systems, Inc., a Delaware corporation (the
&#147;Registrant&#148;), issued a press release announcing the election of Lip-Bu Tan to
its Board of Directors. A copy of the press release is attached hereto as
Exhibit&nbsp;99.1 and incorporated by reference herein.
</FONT>

<P align="center"><FONT size="2">2
</FONT>

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<P align="center"><FONT size="2"><B>Signature</B>
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dated as of February&nbsp;10, 2004.
</FONT>

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    <TD width="46%">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD colspan="5" valign="top" align="left" nowrap><FONT size="2"><B>CADENCE DESIGN SYSTEMS, INC.</B></FONT></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">By:</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">/s/ William Porter</FONT></TD>
</TR>
<TR>
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><HR size="1" noshade></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">William Porter</FONT></TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">&nbsp;</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">Senior Vice President and<BR>
Chief Financial Officer</FONT></TD>
</TR>
</TABLE>
</DIV>

<P align="center"><FONT size="2">&nbsp;
</FONT>

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<DIV align="left"><A NAME="002"></A></DIV>

<P align="center"><FONT size="2"><B>EXHIBIT INDEX</B>
</FONT>

<DIV align="center">
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%">
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR  valign="bottom">
    <TD nowrap align="left"><FONT size="1"><B>Exhibit No.</B></FONT></TD>
    <TD><FONT size="1">&nbsp;</FONT></TD>
    <TD nowrap align="center"><FONT size="1"><B>Description</B></FONT></TD>
</TR>
<TR  valign="bottom">
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    <TD><FONT size="1">&nbsp;</FONT></TD>
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<TR valign="bottom">
    <TD valign="top"><FONT size="2">99.1</FONT></TD>
    <TD><FONT size="2">&nbsp;</FONT></TD>
    <TD align="left" valign="top"><FONT size="2">Press Release of the Registrant issued on February&nbsp;10, 2004.</FONT></TD>
</TR>
</TABLE>
</DIV>

<P align="center"><FONT size="2">&nbsp;
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>f96370exv99w1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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<P align="right"><FONT size="2"><B>EXHIBIT 99.1</B>
</FONT>

<P align="left"><FONT size="2">For more information, please contact:
</FONT>

<P align="left"><FONT size="2">Giovanni Rodriguez<BR>
Eastwick Communications<BR>
for Cadence Design Systems, Inc.<BR>
650-480-4021<BR>
giovanni@eastwick.com
</FONT>

<P align="center"><FONT size="2"><B>CADENCE ELECTS LIP-BU TAN TO ITS BOARD OF DIRECTORS</B>
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>SAN JOSE, Calif. </B>&#150; <B>Feb. 10, 2004 </B>&#150; Cadence Design Systems, Inc. (NYSE:
CDN) today announced that Lip-Bu Tan, chairman and founder of Walden
International, has been elected to the Cadence&#174; Board of Directors.
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#147;We are pleased to have Lip-Bu Tan join the Cadence Board of Directors,&#148;
said Ray Bingham, president and CEO of Cadence. &#147;His stature in the
international community &#150; and experience in advising leading technology
companies &#150; will be great assets to Cadence as it continues to serve the global
market with new-generation technologies.&#148;
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#147;I am delighted to join the Cadence Board of Directors,&#148; said Lip-Bu Tan.
&#147;This is a pivotal time in Cadence&#146;s development as it focuses its energies on
serving the global electronics marketplace. Cadence&#146;s technological and
managerial leadership around the globe will be increasingly visible in the
coming years.&#148;
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Lip-Bu Tan has been active in the venture capital industry for the past
two decades with a special focus on software, semiconductors, and
communications. He introduced and pioneered the U.S. venture capital concept in
Asia and contributed towards the promotion of early-stage technology investing
in the Asia-Pacific region. He is a board member of Flextronics (NASDAQ:
FLEX), the National Venture Capital Association (NVCA), a member of the
Visiting Committee for the Department of Electrical Engineering and Computer
Science at the Massachusetts Institute of Technology, and a member of the Committee of 100.
</FONT>

<P align="center"><FONT size="2">&nbsp;
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<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mr.&nbsp;Tan received his M.S. in Nuclear Engineering from the Massachusetts
Institute of Technology, his MBA from the University of San Francisco, and his
B.S. from Nanyang University in Singapore.
</FONT>

<P align="left"><FONT size="2"><B>About Cadence</B>
</FONT>

<P align="left" style="margin-left:0%; margin-right:0%"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cadence is the largest supplier of electronic design technologies,
methodology services, and design services. Cadence solutions are used to
accelerate and manage the design of semiconductors, computer systems,
networking and telecommunications equipment, consumer electronics, and a
variety of other electronics-based products. With approximately 4,800 employees
and 2003 revenues of approximately $1.1&nbsp;billion, Cadence has sales offices,
design centers, and research facilities around the world. The company is
headquartered in San Jose, Calif., and traded on the New York Stock Exchange
under the symbol CDN. More information about the company, its products and
services is available at www.cadence.com.
</FONT>



<P align="left"><FONT size="2"><I>Cadence and the Cadence logo are registered trademarks of Cadence Design
Systems, Inc. All other trademarks are the property of their respective
owners.</I>
</FONT>

<P align="center"><FONT size="2">&nbsp;
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