CABOT MICROELECTRONICS CORP
NON-EMPLOYEE DIRECTORS' COMPENSATION SUMMARY
<DOCUMENT>
<TYPE>EX-10.46
<SEQUENCE>4
<FILENAME>directorcompensation.htm
<DESCRIPTION>NON-EMPLOYEE DIRECTORS' COMPENSATION SUMMARY
<TEXT>
<HTML><HEAD>
<TITLE>
Non-employee Directors' Compensation Summary
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<DIV><BR>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG>Exhibit
10.46</STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG><U></U></STRONG></FONT>&nbsp;</DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><STRONG><U>Non-Employee
Directors&#8217; Compensation Summary as of March, 2005</U></STRONG></FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Effective
as of March 7, 2005, non-employee directors are eligible for the following
compensation:</FONT></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV align=center>
<TABLE cellSpacing=0 cellPadding=0 width="60%">
  <TR bgColor=#e2eef6>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Annual
      Retainer Fee</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$35,000</FONT></DIV></TD>
    <TD vAlign=top align=left width="5%">&nbsp;</TD></TR>
  <TR bgColor=#ffffff>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Committee
      Meeting Fees</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$1,500</FONT></DIV></TD>
    <TD vAlign=top align=left width="5%">&nbsp;</TD></TR>
  <TR bgColor=#e2eef6>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Committee
      Chair Annual Retainer Fees:</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">&nbsp;</TD>
    <TD vAlign=top align=left width="5%">&nbsp;</TD></TR>
  <TR bgColor=#ffffff>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Audit
      Committee Chairperson</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$20,000</FONT></DIV></TD>
    <TD vAlign=top align=left width="5%">&nbsp;</TD></TR>
  <TR bgColor=#e2eef6>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Compensation
      Committee Chairperson</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$10,000</FONT></DIV></TD>
    <TD vAlign=top align=left width="5%">&nbsp;</TD></TR>
  <TR bgColor=#ffffff>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 27pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Nominating
      and Corporate Governance Chairperson</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">$10,000</FONT></DIV></TD>
    <TD vAlign=top align=left width="5%">&nbsp;</TD></TR>
  <TR bgColor=#e2eef6>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Annual
      Non-qualified Stock Option Grant</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">10,000</FONT></DIV></TD>
    <TD vAlign=top width="5%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=justify><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">options</FONT></DIV></TD></TR>
  <TR bgColor=#ffffff>
    <TD vAlign=top align=left width="30%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=left><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Initial
      Non-qualified Stock Option Grant</FONT></DIV></TD>
    <TD vAlign=top align=right width="10%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=right><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">15,000</FONT></DIV></TD>
    <TD vAlign=top width="5%">
      <DIV
      style="DISPLAY: block; MARGIN-LEFT: 9pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
      align=justify><FONT
      style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">options</FONT></DIV></TD></TR></TABLE></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><BR></DIV>
<DIV
style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt"
align=left><FONT
style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Under our
Directors&#8217; Cash Compensation Umbrella Program (previously filed as Exhibit
10.36), non-employee directors continue to be eligible to choose to receive
compensation either in cash, in fully vested restricted stock under our Second
Amended and Restated Cabot Microelectronics Corporation 2000 Equity Incentive
Plan, or as deferred compensation under our Director&#8217;s Deferred Compensation
Plan (previously filed as Exhibit 10.28). Our Directors&#8217; Deferred Compensation
Plan allows non-employee directors to defer their compensation in the form of
rights to acquire the equivalent number of shares of common stock at the end of
the deferral period. Non-employee directors continue to receive their respective
annual retainer fees, committee chair annual retainer fees and annual
non-qualified stock option grants at the time of our annual meeting, or upon the
date of a director&#8217;s original election to the Board of Directors, if other than
the annual meeting date.</FONT></DIV>
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