Electronics Forum | Thu Nov 11 11:11:18 EST 2004 | clampron
D.B., You are justified in your concern over the last requirement. I have been imposed by a customer with the same hand solder/rework requirements. It seems the biggest concern is thermally shocking ceramic chips. You are much less likely to do this
Electronics Forum | Thu Nov 11 11:48:57 EST 2004 | rlackey
Adding flux prior to reflow was not an uncommon process on certain packages - a couple of our Universal GSM'S have flux heads for this reason (Not that we've ever used it on anything). What is the component they are suggesting using additional flu
Electronics Forum | Thu Nov 11 10:09:06 EST 2004 | D.B.Davis
Dear Colleagues, I am working with a new prototype product that is presenting some interesting problems. My Engineering Dept. has made some suggestions that I find a little odd. I am looking for some confirmation from fellow SMD personnel as to the
Electronics Forum | Sun Dec 22 22:20:26 EST 2019 | sssamw
Sometime yes, if your design is not good enough, then supplier provide a good solution or suggestion, then you can try. Supplier is not only a supplier, sometime they're professional and expert on their area. But change should follow your change mana
Electronics Forum | Thu Nov 28 19:24:04 EST 2019 | luciano_zhang
Do you allow your manufacturer to do some changes to your PCB design? If yes, do you think that the manufacture can make your design better?
Electronics Forum | Mon Dec 02 20:05:25 EST 2019 | crystal12
personally, I do allow. usually, they will do some design for manufacturability change. this cannot be avoided. I have read an interesting article talking about this question, maybe you can check: http://www.starivergroup.com/News/info.aspx?itemid=10
Electronics Forum | Mon Feb 18 09:58:21 EST 2019 | SMTA-Joe
Thanks. Something to think about!
Electronics Forum | Thu Dec 26 20:36:56 EST 2019 | luciano_zhang
Thank you for your comments
Electronics Forum | Wed Jan 01 21:57:34 EST 2020 | luciano_zhang
Thank you for your comments
Electronics Forum | Mon Feb 18 07:49:17 EST 2019 | SMTA-Joe
the tarnishing is happening across all the traces without solder even being applied. The PCB is soldered into the housing first. Once this is complete the traces have changed, and when it is time to solder the components to the traces this tarnishing
