Electronics Forum | Sat Apr 21 08:26:57 EDT 2007 | Cmiller
Has anyone experienced a problem with conformal coating adhesion to IS-410 boards? We are having problems with one suppliers boards. IS-410 boards from other suppliers are fine and all FR-4 boards that I have looked at are fine. We are using Conap
Electronics Forum | Fri Nov 05 09:52:44 EST 1999 | Dave F
John: Three things: 1 You are correctamundo!!!! What's the difference between slopping alcohol on dirty boards and washing dirty boards? Clean boards!!!! By the time those very nice people get done with their alcohol cleaning (a nip for the boar
Electronics Forum | Tue Sep 04 13:41:52 EDT 2001 | Brian W.
IPC7912 deals with the end result, ie an OEM getting boards from a contract manufacturer. I have a friend who is sitting on these committees. He tells me there is a new standard due out for actually doing in-process DPMO. From a process standpoint
Electronics Forum | Fri Jun 03 04:16:27 EDT 2005 | Bryan She
Background: We use a thermal boards to setup/profiling the reflow oven for pilot run.and then daily verify the reflow profile with this thermal board.Now we phased into LF production,and the LF thermal board can only withstand 25~30 times reflow excu
Electronics Forum | Tue Apr 03 05:46:35 EDT 2007 | chrissieneale
OK - going to set up some measurements so we can see how big this problem is. I've got the following so far... Number of boards pasted per employee per shift Number of hand placed parts per employee per shift Number of people per shift Time pasting
Electronics Forum | Tue May 31 14:23:16 EDT 2011 | gosswald
I bought an “as is’ Quad IIC package a while back. The machine definitely has issues with the Quadalign Board. The ICs were literally falling off of the board. I am guessing when it was manufactured they did not get the PC board quite hot enough or s
Electronics Forum | Thu Jul 09 22:45:42 EDT 2015 | cathy247
Hello Maxim, we offer below services with Popular Competitive Pricing: －Express PCB Prototyping(2-28 layer) －HDI PCB －Flexible Printed Board(1-8 layer) －Flexi-rigid Printed Board －High Frequency Board(Rogers,Arlon,PTFE) －Blind/Buried Via Board －High
Electronics Forum | Tue Sep 13 07:00:28 EDT 2016 | awhite
Thanks for the reply. When you hit start on the printer, you can see it send the "start cycle (SMEMA)" signal, and it immediately goes to "awaiting board from upstream." This tells me that the printer knows a signal has definitely been sent and rece
Electronics Forum | Tue Apr 27 13:58:15 EDT 1999 | Scott McKee
| Board Experts | | I am fighting with a board house about a delamination problem.. First the facts | 1) 10 layer board .063 thick HASL Finish Aprox 16 in x 17 in. | 2) 150 Boards with this part number built with the same reflow oven settings (2
Electronics Forum | Wed Oct 11 16:05:16 EDT 2000 | NLykus
Does anyone have any experience with running a double sided/surface mount(bottom)board manufactured with CHEM 1 material? We are currently looking at cost cuts. My personal experience recently in running a D.O.E. against other materials and solder
