The June report, provided by the Association Connecting Electronic Industries, or IPC, also reflected an increase in bookings for both printed and flexible circuit boards. Booking for rigid printed circuit boards grew 29.3%, while flexible shipments were up 11%. Compared to the previous month, rigid PCB shipments increased 13.7% and rigid bookings increased 9.7%.

Year to date, flexible circuit shipments increased 0.6% and bookings were up 15.5%. Compared to the previous month, flexible circuit shipments went up 28.1% and flexible circuit bookings declined 2.7%. For rigid PCBs and flexible circuits combined, industry shipments in June 2010 increased 24.4% from June 2009, as orders booked increased 27.8% from June 2009. Year to date, combined industry shipments were up 17.6% and bookings were up 33.4%. Compared to the previous month, combined industry shipments for June 2010 increased 14.8% and bookings went up 8.6%.

Additional highlights from IPC’s report: The North American flexible circuit book-to-bill ratio in June 2010 remained high at 1.15, while the book-to-bill ratio for the North American rigid printed circuit board industry stood at 1.12 in June. The combined rigid and flexible circuit board industry book-to-bill ratio in June 2010 was 1.12. Rule of thumb: A ratio of more than 1.00 suggests that current demand is ahead of supply, which is a positive indicator for sales growth over the next two to three months.

“The book-to-bill ratios for both rigid PCBs and flexible circuits remain well above parity, which suggests a positive outlook for the remainder of the year,” said Denny McGuirk, IPC president and CEO. “Sales growth is stabilizing, but year-on-year growth in both segments is continuing in double digits.”

The full June printed circuit board report is available online.