SAN JOSE — North America-based semiconductor equipment manufacturers continued to see orders slide relative to sales in October, the SEMI trade group said.
The book-to-bill ratio fell 10 basis points sequentially to 0.93, the fifth straight month of declines from a high of 1.10 in June.
A book-to-bill of 0.93 means that $93 worth of orders were received for every $100 of product billed for the month.
The three-month average worldwide bookings in October was $1.10 billion, down 7% from the revised September figures and down 1.9% from October 2013. Three-month average worldwide billings were down 5.8% from September to $1.18 billion, but up 10.6% from a year ago.
| 
 | Billings | Bookings | Book-to-Bill | 
| May 2014 | $1,407.8 | $1,407.0 | 1.00 | 
| June 2014 | $1,327.5 | $1,455.0 | 1.10 | 
| July 2014 | $1,319.1 | $1,417.1 | 1.07 | 
| August 2014 | $1,293.4 | $1,346.1 | 1.04 | 
| September 2014 (final) | $1,256.5 | $1,186.2 | 0.94 | 
| October 2014 (prelim) | $1,184.0 | $1,102.9 | 0.93 | 
Source: SEMI, November 2014