June 18, 2009– North America-based manufacturers of semiconductor equipment posted $288.5 million in orders in May 2009 (three-month average basis) and a book-to-bill ratio of 0.74 according to the May 2009 Book-to-Bill Report published today by SEMI. A book-to-bill of 0.74 means that $74 worth of orders were received for every $100 of product billed for the month.

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Association Contact

Dan Tracy/SEMI Tel: 1.408.943.7987 E-mail: dtracy@semi.org

Scott Smith/SEMI Tel: 1.408.943.7957 E-mail: ssmith@semi.org

Editor’s Note:

The June 2009 SEMI Book-to-Bill Report is scheduled for publication on July 21, 2009; 3:00 p.m. PDT (subject to change).

The SEMI Book-to-Bill Report provides a first look at the book-to-bill ratio for North American Headquartered Semiconductor Equipment Manufacturers. The three-month average global bookings and billings are a strong indicator for trends in the worldwide semiconductor industry. SEMI follows the protocol established by the U.S. Department of Commerce in publishing our figures only on a three-month average basis. We do this in order to smooth out the natural volatility in bookings. This report is distributed monthly approximately three weeks after the close of each month. Categories covered include front-end (wafer processing/mask/reticle/wafer manufacturing/fab facilities) equipment and final manufacturing (assembly/packaging/test) equipment.

SEMI Book-To-Bill Report Release Dates 2009
Important: Dates are subject to change; Report is released at 3:00 pm Pacific Time.

January 20	July 21
February 19	August 18
March 19	September 17
April 16	October 20
May 21	November 19
June 18	December 17

In addition to the SEMI Book-to-Bill report, two other organizations offer data on book-to-bill trends. The following description explains the coverage of those two reports:

Other notes

The Semiconductor Equipment Association of Japan (SEAJ) is a Japanese organization of semiconductor, liquid crystal display (LCD), and related manufacturing equipment manufacturers. The SEAJ issues a monthly book-to-bill report based on three-month average global bookings and billings of Japanese headquartered equipment manufacturers. The SEAJ Book-to-Bill Report is issued on or shortly after the SEMI book-to-bill report release date. Visit http://www.seaj.or.jp for additional info about this organization.

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