BANNOCKBURN, IL – Printed circuit boards that incorporate high-speed chips and microwave circuitry have many parameters that are different from more mainstream rigid and flexible printed boards, says IPC. These differences are covered in the “B” revision of IPC-6018, Qualification and Performance Specification for High Frequency (Microwave) Printed Boards.

CAPE TOWN – African and mining industry representatives have held productive talks on how to reengage several producers of so-called conflict minerals into the international markets.

RANCHO CUCAMONGA, CA – Arlon Electronic Materials reported sales fell 9.2% year-over-year for the quarter ended Mar. 31.

The laminates maker reported revenue of $20 million for the period. The drop in sales was partially attributed to lower demand for printed circuit board materials related to telecommunications in China.

Segment operating income was $2.5 million for the period, up 19% compared to the same period of 2011.

MELVILLE, NY – Park Electrochemical Corp. reported net sales of $43.7 million for the fourth quarter ended Feb. 26, down 14.6% year-over-year.

The firm reported net earnings before special items of $3.9 million, down 53% year-over-year.

In the fourth quarter, the firm recorded a restructuring charge of $1.25 million in connection with the closing of its Park Advanced Composite Materials facility in Waterbury, CT.

Park’s net sales for the fiscal year were $193.3 million, down 8.7% compared to last year.

Net earnings before special items were $23.2 million, down 32% year-over-year.

Park Electrochemical develops and manufactures digital and RF/microwave printed circuit materials.