Electronics Forum: elongated hole (Page 1 of 1)

Re: Help I need DATA on Thermal shock caused by REWORK!

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

Re: Wavesolder PCB Temp. Settings

Electronics Forum | Sat Nov 14 08:00:34 EST 1998 | Earl Moon

Also the preheating of the board is done to help evaporate any water/alcohol that is in the flux - water is a big problem in No-clean processes. From our experience, a temp range around 200f - no more than 220f is ideal for the bigger boards, but t

Re: Help I need DATA on Thermal shock caused by REWORK!

Electronics Forum | Sat Oct 02 20:19:19 EDT 1999 | John Dwinell

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 Ir

Re: PCB Standards

Electronics Forum | Wed Jun 10 18:40:00 EDT 1998 | Earl Moon

I am looking for the Industry standards on vias. Are they required to be plated with solder or is copper plating enough? What about reliabilty with either one? Also, if tenting the via is required should it be copper plated or solder plated over

Re: Qualifying new PWB Vendors

Electronics Forum | Fri Jan 15 17:13:07 EST 1999 | Earl Moon

Hello, We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. So far, the tests I can think of

Re: Qualifying new PWB Vendors

Electronics Forum | Fri Jan 15 16:55:50 EST 1999 | Chrys

Hello, We are qualifying new sources of PWB vendors. We've got the first lot of "produciton" boards in and we want to put them through the paces before turing the vendors on. So far, the tests I can think of performin

Re: PCB fab supplier supplier/evaluation

Electronics Forum | Sun Aug 08 11:15:32 EDT 1999 | Earl Moon

Mike, Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no goo

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