Electronics Forum | Wed Jul 11 14:38:28 EDT 2007 | realchunks
Make a back support out of some wood. Laying across the convyor supports gets old after 3 minutes.
Electronics Forum | Tue Jul 17 11:13:40 EDT 2007 | ck_the_flip
I have a friend named Bot, who says, "nothing ever goes wrong with Vitronics."
Electronics Forum | Wed Jul 11 14:44:21 EDT 2007 | fredericksr
Hi folks! Has anyone ever successfully verified adequate ESD control at
Electronics Forum | Thu Jul 12 11:49:34 EDT 2007 | realchunks
Hi Swag, We do this all the time. If your print is spot on, you should not see any shorting.
Electronics Forum | Thu Jul 19 17:54:50 EDT 2007 | swag
Thanks - We ended up using a kapton stencil mainly due to the fact that we couldn't get time on the SMT lines. It worked great, protected the vias and the BGA functions fine.
Electronics Forum | Thu Jul 12 16:17:59 EDT 2007 | bandjwet
We are looking for: 1. A company that sells inspection equipment that can measure the height of solder balls (relative to the plane of the interposer or bottom of the device) OR 2. A service provider who can make some measurements for a user. Any
Electronics Forum | Thu Jul 12 18:21:37 EDT 2007 | arburgos
We are considering buying a new stencil washer machine. We stencil print boards with NC solder paste and in the near future Lead free solder paste. I'd like to hear your experience with this equipments and what you recommend.
Electronics Forum | Fri Jul 13 04:58:01 EDT 2007 | pavel_murtishev
Good afternoon, Heating/Cooling rates contribute to warpage most of all. Try to tweak you profile so that heating/cooling rate would be minimized. Try to switch cooling blowers off maintaining required peak/TAL. Check copper balance for this PWB, by
Electronics Forum | Fri Jul 13 17:01:50 EDT 2007 | sean10
Thanks for your inputs. The board construction seams to be balanced and boards comes back to flat after top side process. we'll be performing experiement variing the profile parameters. if that does not do it, any printing suggestings? Would more sq
Electronics Forum | Fri Jul 13 12:27:30 EDT 2007 | jseagle
As in more dwell? We see the same problem with through holes connected to power or ground planes. The solder reaches the plane and stops. We are having our boards re-designed to increase the thermal relief and expand the hole size. We are also tr