FRANKFURT – PCB sales among German manufacturers rose 9% sequentially in September and 37% year-over-year, according to ZVEI PCB and Electronic Systems.

Bookings rose 5% sequentially and 26% from last year.

The book-to-bill ratio fell to 0.92, as sales outpaced shipments. A ratio of 0.92 means that for every 100 euros of shipments, 92 euros worth of orders were placed. A ratio under 1.0 is considered a sign of a declining market.

Through September, year-to-date sales are up 35% from last year, while bookings are almost twice that of last year.

NORTHBROOK, IL— A new Underwriters Laboratories white paper clarifies the theory of dielectric breakdown and the objective of the dielectric voltage withstand test, which takes place during the product design phase of electronic devices.