CONFIDENTIAL TREATMENT REQUESTED
BY RUBICON TECHNOLOGY, INC.
FIRST AMENDMENT TO 6” SUPPLY AGREEMENT*
by and between
PEREGRINE SEMICONDUCTOR CORPORATION
RUBICON TECHNOLOGY, INC.
This First Amendment (this “ Amendment ”) to the 6” Supply Agreement dated as of March 26, 2007 (the “
Agreement ”) by and between Peregrine Semiconductor Corp. (“ Peregrine ”) and Rubicon Technology, Inc. (“ Rubicon ”) is
effective as of August 22, 2008 (the “ Effective Date ”).
Now, therefore, in consideration of Rubicon’s interest in accommodating Peregrine to foster a long term supply relationship, the
sufficiency of which is hereby acknowledged, Peregrine and Rubicon agree as follows:
A. Peregrine and Rubicon are parties to the “Agreement”, providing for the purchase and sale of Products, as defined
B. Peregrine has requested Rubicon to reduce shipment volumes in 2008 as defined in Attachment A of the Agreement
and has requested to shift the volume of wafers not shipped in 2008 to early 2009.
1. Definitions. Unless otherwise expressly provided in this Amendment, each capitalized term used in this Amendment
has the same meaning as in the Agreement.
Shipment Volume Rubicon will reduce shipments to [***] wafers per month in August 2008 through December 2008.
To date in 2008, Rubicon has already held back [***] wafers from shipment to Peregrine at Peregrine’s request. In
total, Rubicon will reduce 6” wafer shipments to Peregrine by [***] units in 2008 and shift these wafers shipments to
Q1and Q2 2009. Rubicon will ship these wafers to Peregrine at the Q4 2008 Supply Agreement pricing in the following
monthly volumes in Q1/Q2 2009:
Certain information in this document has been omitted and filed separately with the Securities and Exchange