SAN JOSE – North America-based semiconductor equipment manufacturers posted a 90-day moving average of $253 million in orders in April, up 3% from the revised March figures.

The April bookings were down 77% from $1.09 billion a year ago.

The 90-day average worldwide billings was $389.9 million, down 11% from March and 71% from April 2008.

"Capital investment by chip makers remains limited and bookings for semiconductor manufacturing equipment from North America-based companies have been essentially flat at extraordinarily low levels for the past quarter," said Stanley T. Myers, president and CEO of SEMI.

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.

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