Electronics Forum: pcb emerson (Page 1 of 1)

Gold Surface Finish on PCB's

Electronics Forum | Thu Dec 08 08:18:29 EST 2005 | grantp

Hi, We have recently moved to flash gold as well, as we had solderability issues with emerson gold, and this was supposed to be a solution. However I did not know flash gold would be thicker, and could have other issues. Is flash gold a stable boar

underfilling of bga

Electronics Forum | Tue May 19 08:20:10 EDT 2009 | Mity C

Good Morning, We are underfilling some of our BGA's. This is a specified customer requirement. The material we are using is Emerson & Cuming E-1216 (also specified by the customer) The material was selected because of a close CTE match with the PCB.

Solid Solder Deposit

Electronics Forum | Tue Aug 10 09:09:39 EDT 2004 | mattkehoe

wash->ssd top->wash->sticky flux bottom side->place smt components->reflow->wash->sticky flux top side->place topside smt components->reflow->wash) ssd is basically the process of applying solder paste to the pcb with a stencil and the solder reflowe

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