SEMI book-to-bill slips

Mark LaPedus, EETimes
2/22/2011 6:34 PM EST

SAN JOSE, Calif. – North America-based manufacturers of semiconductor equipment posted a book-to-bill ratio of 0.85 in January, down from 0.90 in December, according to SEMI.

A book-to-bill of 0.85 means that $85 worth of orders were received for every $100 of product billed for the month. 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.

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