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Economic Calendar Terms

US SEMI book/bill ratio

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The SEMI (Semiconductor Equipment and Materials International) book-to- bill is a ratio of three-month moving average bookings to three-month moving average shipments for the North American semiconductor equipment industry. Shipments and bookings figures are in millions of U.S. dollars. The data are contained in a monthly Express Report published by SEMI that tracks shipments and orders worldwide of North American-based manufacturers of equipment used to manufacture semiconductor devices, not shipments and orders of the chips them- selves.