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Union Steel Industry Co., Ltd as member of United Steel Industry Group, specialized in steel pipe and pipe fittings designing, manufacturing, stocking and exporting in China.
DC-Generatoren Advanced Energy MDX-L6 - P/N 3152317-000 MDX-L12 - P/N 3152313-000 MDX-L12-650 - P/N 3152313-003 MDX-L12M - P/N 3152313-001 MDX-L12M-650 - P/N 3152344-101 MDX-L15 - P/N 3152354-000 MDX-L18M - P/N 3152345-100 MDX-20K Master -
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Electronics Forum | Wed Sep 10 12:44:55 EDT 2008 | vladig
Well, it wasn't as easy to figure out the root cause. The last image is below. It shows how the board finish looks like (the trace was under solder mask). AS you can see, the layer of E-Ni is spliting (the board shop admitted the problem afterwards).
Electronics Forum | Thu Mar 06 12:37:05 EST 2008 | realchunks
Long, yellow, ugly toe nails will have the same affect on your boards.
Used SMT Equipment | Conveyors
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Parts & Supplies | Pick and Place/Feeders
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Parts & Supplies | Pick and Place/Feeders
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Technical Library | 2015-11-25 14:15:12.0
In this study various printed circuit board surface finishes were evaluated, including: organic solderability preservative (OSP), plasma finish (PF), immersion silver (IAg), electroless nickel / immersion silver (ENIS), electroless nickel / immersion gold hi-phosphorus (ENIG Hi-P), and electroless nickel / electroless palladium / immersion gold (ENEPIG). To verify the performance of PF as a post-treatment option, it was added to IAg, ENIG Hi-P, and ENEPIG to compare with non-treated. A total of nine groups of PCB were evaluated. Each group contains 30 boards, with the exception on ENIS where only 8 boards were available.
