North American Semiconductor Equipment Industry Posts May 2015 Book-to-Bill Ratio of 0.99

SAN JOSE, Calif. — June 18, 2015 — North America-based manufacturers of semiconductor equipment posted $1.56 billion in orders worldwide in May 2015 (three-month average basis) and a book-to-bill ratio of 0.99, according to the May EMDS Book-to-Bill Report published today by  SEMI.   A book-to-bill of 0.99 means that $99 worth of orders were received for every $100 of product billed for the month.

SEMI reports that the three-month average of worldwide bookings in May 2015 was $1.56 billion. The bookings figure is 0.8 percent lower than the final April 2015 level of $1.57 billion, and is 11.0 percent higher than the May 2014 order level of $1.41 billion.

The three-month average of worldwide billings in May 2015 was $1.57 billion. The billings figure is 3.7 percent higher than the final April 2015 level of $1.51 billion, and is 11.6 percent higher than the May 2014 billings level of $1.41 billion.

“The May book-to-bill ratio slipped below parity as billings improved and bookings dipped slightly from April’s values,” said Denny McGuirk, president and CEO of SEMI.  “Compared to one year ago, both bookings and billings continue to trend at higher levels.”

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.

(3-mo. avg)
(3-mo. avg)
December 2014 $1,395.9 $1,381.5 0.99
January 2015 $1,279.1 $1,325.6 1.04
February 2015 $1,280.1 $1,313.7 1.03
March 2015 $1,265.6 $1,392.7 1.10
April 2015 (final) $1,515.3 $1,573.7 1.04
May 2015 (prelim) $1,571.2 $1,561.4 0.99

Ource: SEMI ( June 2015

The data contained in this release were 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. The Book-to-Bill report is one of three reports included with the SEMI  Equipment Market Data Subscription (EMDS).

SEMI is the global industry association serving the nano- and micro-electronic manufacturing supply chains. Our 1,900 member companies are the engine of the future, enabling smarter, faster and more economical products that improve our lives. Since 1970, SEMI has been committed to helping members grow more profitably, create new markets and meet common industry challenges. SEMI maintains offices in Bangalore, Beijing, Berlin, Brussels, Grenoble, Hsinchu, Moscow, San Jose, Seoul, Shanghai, Singapore, Tokyo, and Washington, D.C.   For more information, visit


Deborah Geiger

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Dan Tracy

Phone: 1.408.943.7987 
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