North American semiconductor fab tool makers see 4th month of positive book-to-bill ratio

June 22, 2012 — North-America-based manufacturers of semiconductor fab equipment posted $1.61 billion in orders worldwide in May 2012, $1.54 billion in billings, and a 1.05 book-to-bill ratio, shows SEMI. 

The three-month average of worldwide bookings in May 2012, $1.61 billion, crept 0.6% above the final April 2012 level of $1.60 billion. May 2012 saw <1% decline year-over-year, down 0.7% from May 2011’s $1.62 billion in orders.

The three-month average of worldwide billings in May 2012, $1.54 billion, grew 5.3% over the final April 2012 level of $1.46 billion. May 2012 billings fell 8.0% from May 2011’s billings of $1.67 billion.

Chipmakers are adding capacity and process technologies to meet demand for chips in mobile applications — namely smart phones and tablets, said Denny McGuirk, president and CEO at SEMI. "Bookings a re at the highest levels since May 2011 and this is the fourth consecutive month that new orders have outpaced billings."

Table. 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.


Billings (3-mo. avg)

Bookings (3-mo.


Book-to-bill ratio





Dec 2011




Jan 2012




Feb 2012




March 2012




April 2012 (final)




May 2012 (prelim)




Source: SEMI June 2012

A book-to-bill of 1.05 means that $105 worth of orders were received for every $100 of product billed for the month.

Also read: Semiconductor fab tool makers see sequential increase in Q1

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 Equipment Market Data Subscription (EMDS).

SEMI is a global industry association serving the nano- and micro-electronic manufacturing supply chains. For more information, visit

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