Electronics Forum | Wed Nov 16 09:22:24 EST 2005 | chunks
These are all good questions. Dip fluxing is fine. Make sure you let all the remaining flux drip off the board. Letting it drip into the pot will cause a lot of spattering of hot solder � be careful. Dipping the board slowly into the pot should
Electronics Forum | Tue Nov 14 18:38:59 EST 2006 | Brandon
Hello all, I am having an issue with some boards on our Wave Solder. It is a Pb free wave and These particular boards are exibiting A LOT of what I call solder bubbles in the larger than usual vias and un-used thru holes. Settings: 4 inch/min 144c to
Electronics Forum | Thu Feb 28 21:01:09 EST 2008 | davef
Tony: Thanks posting information about your experience with strippers. First, why did you need to strip the entire board? Next, please clarify the following points to expand our knowledge of using Humiseal 1063 Stripper: * How long was the conforma
Electronics Forum | Wed May 07 17:52:36 EDT 2008 | wayne123
I have these boards that are a four layer FR4 material, we had been running them for quite awhile with no trouble, and then they started delaminating, I checked my Reflow oven profile and I was barely hitting the temps required for our paste, we then
Electronics Forum | Fri Nov 18 12:32:56 EST 2011 | gosswald
I have a Quad 2C I have been in the process of setting up. Currently everything seems to be working on the unit but I am having some vision inspection problems with it. The vision system does comes on line and seems to work correctly. I have one bo
Electronics Forum | Thu Aug 09 07:53:16 EDT 2012 | davef
Allowable bow & twist: Together, both IPC-A-600G and IPC-6012B represent the core IPC documents for describing the acceptable and nonconforming conditions that are either externally or internally visible on finished printed boards. IPC-A-600G relies
Electronics Forum | Wed Sep 30 06:22:23 EDT 2015 | mervin
MPMENG, Thank you so much for taking the time to help. The machine has Y snuggers and flippers. The Pcb is loading in the center all the time. The driver cards look fine there is no obvious faults on them or partially burned. The machine was not in
Electronics Forum | Mon Mar 08 20:17:41 EST 1999 | Michael Larsen
| | I'm having a fun time between BGA rework/repair using an SRT 1000 and SPC efforts (much easier) using DEK stencil printing processes and BTU reflow with 6 Fuji lines in between. | | Concerning the BGA stuff, I'm getting about 60% success using
Electronics Forum | Fri Dec 01 16:02:33 EST 2000 | Jim M
Thanks for your reply. I 've tried to clarify and answer your questions. The water soluble paste used is WS3060, type 4. The boards are sent through a inline di cleaner after reflow. There is a hot Di waterwash, rinse and then hot air to dry the wa
Electronics Forum | Tue Oct 17 12:15:19 EDT 2000 | NLykus
Dave, Current process is Insert through hole components topside Dispense SMT glue Place SMT components bottom side Glue cure Insert 1 through hole component by hand Wave Wave temperature is 480oF Topside preheats in D.O.E ranged from 99oc to 108oC
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