Printed Circuit Board Manufacturing Industry Profile

Manufacturers of printed circuit boards (PC boards) are included as part of the electronic component manufacturing industry. As of 1984, the printed circuit board manufacturing industry consisted of a total of 585 plants with an employment of 435,100 (NCO 1984). Industry personnel indicate that the actual number of plants may be closer to 1,000 (USEPA 1986). The industry consists of large facilities totally dedicated to printed circuit boards, large and small captive facilities, small job shops doing contract work, and specialty shops doing low-volume and high-volume precision work. Approximately half of the printed circuit boards produced are by independent producers, while the rest are by captive producers. Over 65 percent of all printed circuit board manufacturing sites are located in the northeastern states and in California (NCO 1984). The printed circuit board manufacturers visited as a part of this study are all considered small. Generally, these small companies can be characterized as those that produce up to 3,000 to 5,000 square feet of processed board each month and require approximately 8,000 to 10,000 square feet of building space. Large companies can be characterized as those that produce or 30,000 to 50,000 square feet per month.

Products and Their Use
Printed circuit boards can be classified into three basic types: single-sided, double-sided, and multi-layered. The total board production in 1983 was 14 million square meters (PEI 1983). Double-sided boards accounted for about 55 percent of the printed circuit boards produced, while multi-layer board production made up 26 percent (PEI 1983). The type of board produced depends on the spatial and density requirement, and on the complexity of the circuitry. Printed circuit boards are used mainly in the production of business machines, computers, communication equipment, control equipment and home entertainment equipment.
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