Mention copper to almost anyone in the PCB industry these days and the first thing that springs to mind is the ongoing price increase. Although copper pricing is not directly monitored by BPA, the impact on the price of laminate and PCBs is monitored through BPA's quarterly survey for its PCB Information Service. \n\nIn the short term, forecasted increases on the demand side for copper prices are likely to remain at least at the current level. The trend in copper usage has diverged in the fact that a number of different applications now exist. \n\nAt one time, 1 ounce (35µm) copper was standard, but the average is now 0.5 ounces. Using thinner copper, if the design will allow, can, to some extent, offset a price increase. However, one segment of the PCB industry which is particularly vulnerable to copper prices is the automotive sector, where recent developments have seen the introduction of thick copper PCBs for smart fuse boxes and power electronics. These boards use 4 ounce, 6 ounce and 10 ounce copper--up to 20 times the standard thickness.
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