2б 1623 ⺸ 5% þ. Ͱ 140 985000 22% 15% پ. ̴ ġ ص ̴. ü ֱ 3 ǰ ġ 1690̰, Ͱ 162, 118.
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ȸ 3б PCB ǰ 470 б 36% ð, 4б 600 б 28% þ ߴ.
1987 μȸα ü. 2 ڴ. μȸα ü ȸθ ̴. ݵü, ױ, ܵ ںǰ ǰ ϴ Ѵ. Ϲ ǰ ÷ ű ڱ ϴ ٽ ǰ̴.
ݵü PCB . ַ ǰ ' PCB' 'Ű (Substrate) PCB'. PCB 43%, Ű PCB 54%. ֿ Z SK̴н.
, '1 ' ˷ ̹ ȸ 22 ( ) 9.5% ϰ ִ.
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