North American Semiconductor Equipment Industry Posts April Book-to-Bill Ratio

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North American Semiconductor Equipment Industry Posts April 2007 Book-to-Bill Ratio of 1.00

SAN JOSE, Calif. – May 22, 2007 – North American-based manufacturers of semiconductor equipment posted $1.60 billion in orders in April 2007 (three-month average basis) and a book-to-bill ratio of 1.00 according to the April 2007 Book-to-Bill Report published today by SEMI. A book-to-bill of 1.00 means that $100 worth of orders were received for every $100 of product billed for the month.

The three-month average of worldwide bookings in April 2007 was $1.60 billion. The bookings figure is over 12 percent higher than the final March 2007 level of $1.42 billion and even with the $1.60 billion in orders posted in April 2006.

The three-month average of worldwide billings in April 2007 was $1.60 billion. The billings figure is over 11 percent than the final March 2007 level of $1.44 billion and almost 11 percent higher than the April 2006 billings level of $1.44 billion.

"This year, several large integrated device manufacturers are believed to be investing a substantial part of their capex in the first quarter. This is one reason that the April book to bill report shows strong gains in both billings and bookings for new semiconductor equipment from North American based suppliers," said Stanley T. Myers, president and CEO of SEMI. “Updated figures also show relative equilibrium of orders and shipments over the past few months, reflecting continued market stability for North American providers of chip making equipment."

The SEMI book-to-bill is a ratio of three-month moving averages of worldwide bookings and billings for North American-based semiconductor equipment manufacturers. Billings and bookings figures are in millions of U.S. dollars.



(Three-month avg.)


(Three-month avg.)


November 2006




December 2006




January 2007




February 2007




March 2007 (final)




April 2007 (prelim.)




The data contained in this release was compiled by David Powell, Inc., an independent financial services firm, without audit, from data submitted directly by the participants. SEMI and David Powell, Inc. assume no responsibility for the accuracy of the underlying data.

The data are contained in a monthly Book-to-Bill Report published by SEMI. The report tracks billings and bookings worldwide of North American-headquartered manufacturers of equipment used to manufacture semiconductor devices, not billings and bookings of the chips themselves.

SEMI is a global industry association serving companies that provide equipment, materials and services used to manufacture semiconductors, displays, nano-scaled structures, micro-electromechanical systems (MEMS) and related technologies. SEMI maintains offices in Austin, Beijing, Brussels, Hsinchu, Moscow, San Jose (Calif.), Seoul, Shanghai, Singapore, Tokyo and Washington, D.C. For more information, visit

Association Contacts

Dan Tracy/SEMI
Tel: 1.408.943.7987

Scott Smith/SEMI
Tel: 1.408.943.7957

Editors Note:

The May 2007 SEMI Book-to-Bill Report is scheduled for publication on June 14, 2007; 3:00 p.m. PDT (subject to change).

Independently from SEMI, The Semiconductor Equipment Association of Japan (SEAJ) releases its May Book-to-Bill Report on approximately the same date. The SEAJ Book-to-Bill Report tracks billings and bookings worldwide of Japanese-headquartered semiconductor equipment manufacturers. For more information on the SEAJ data, visit

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