Electronics Forum | Tue Jul 19 09:06:00 EDT 2016 | davef
We used to use those, back in the bad old times. basically, it's a router with a blade on it that is used to trim the leads of PTH components that are mounted on boards. Nasty process. Difficult to control. Messy, firing cut leads all over the plac
Electronics Forum | Mon Feb 12 09:51:51 EST 2007 | rgduval
From what I see, you have a couple of options... 1. Hand solder the secondary side LED's. This is only a good option if you're going to be at low-ish volumes. Higher volumes tend to necessitate more automation to reduce production costs. However
Electronics Forum | Mon Apr 23 11:49:46 EDT 2007 | ck_the_flip
Wow, you're using the Surface Mount Adhesive for mechanical vibration? I've never heard of SMT adhesive being used for things other than holding the components in place before wave solder. Does it work for mechanical purposes? Glue/Wave is a proce
Electronics Forum | Wed Jul 15 15:35:21 EDT 1998 | Michael Fogel
Hello Mark, Here in ECI, because the nature of our products, are using the method of press fit connectors in big numbers and although we have SMT components (around 200 per board) as well as T/H components we still preferred to use press fit because
Electronics Forum | Wed Jul 28 12:02:48 EDT 1999 | Wolfgang Busko
| | While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That wou
Electronics Forum | Sat Oct 02 03:27:52 EDT 1999 | Brian
| I am currently in the middle of a company wide war and I'm looking for data (AMMO). Here are the problems: | | 1) I am looking for anyone who has done or seen any reports on Thermal Shock to smt parts and/or via holes caused by Soldering Irons at
Electronics Forum | Mon Jun 08 15:00:08 EDT 1998 | Earl Moon
| I work QA at an OEM in Alberta, Canada. I saw earlier posts on the smtnet regarding PCB haloing criteria. I am currently in a dispute with my PCB vendor over the acceptability of haloing (delamination) around plated through holes and vias on a lot
Electronics Forum | Tue Jul 27 11:59:19 EDT 1999 | Wolfgang Busko
While inspecting incoming PCBs we detected around all plated-through-holes (only there and all in the same place) some halfmoonshaped light rings that match obviously only with the pink ring symptom shown in the IPC-A-600 chapter 2.5.2.. That would m
Electronics Forum | Mon Oct 15 10:57:32 EDT 2001 | davef
Before this wave solder pallet salesman blather gets too far out-of-control, let�s stop for a minute. The three major approaches you have are: 1 SELECTIVE SOLDERING: Using: * Specialty wave soldering machine to solder specific areas of a board * P
Electronics Forum | Fri Oct 22 19:34:56 EDT 2010 | hegemon
Thanks for the help guys. Nice to think I was basically on the right path. PCB manufacturer has finally conceded the barrel defects and is remaking the PCBs. We are big on pre-tinning the leads of TH connectors as well as providing some good pre
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