BANNOCKBURN, IL - The 90-day moving average shipments of all types of circuit boards rose 0.9% year-on-year in February, according to the latest poll of U.S. PCB fabricators. Bookings fell 34.1%, however, due to seasonality.

A large percentage of the production includes boards built offshore and distributed by North American vendors. According to IPC, which takes the poll, 33% of the shipments reported were produced offshore, down two points from January.

The domestic book-to-bill ratio was flat at 1.08, the third month in a row the key indicator was above 1.0. The ratio is based on data collected by IPC from rigid and flex producers and is calculated by dividing three months worth of orders by sales. A ratio over 1.0 is considered an indicator of rising demand.

Separately, the ratios were 1.04 for rigid PCBs, up 0.04 points, and 1.23 for flexible circuits, down 0.13 points.

Rigid board shipments, estimated by IPC to make up 75% of all domestic PCBs, were down 3.2% in February vs. a year ago. Bookings were down 9.8% for the month. Flex sales grew 21.2%, but bookings fell 105%.

Year-to-date flex bookings are down 26.2% and shipments are up 33.8%. Rigid shipments are down 1.8% and bookings are off 6%. Shipments of all boards are up 4.3% and bookings are down 10.1%.

Sequentially, combined shipments were up 5.1% over January, while bookings were 28.3% lower percent. Rigid shipments were up 11.2% and bookings climbed 4.5% sequentially. Flex shipments were down 13.9% and bookings were down 104.7%.

Domestic production accounted for 74% of rigid and 37% of flex circuit shipments in January, IPC said.

Flex sales include some value-added services in addition to the bare flex circuits.

In a statement, IPC cautioned that month-to-month comparisons should be made with caution as they may reflect cyclical effects.

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