Electronics Forum | Thu Jan 08 14:33:50 EST 2004 | dwzeek
Toe fillets are not required per IPC. Toe fillets could be used as a process indicator, if you desire; I would not. Gull wing leads are typically cut off on the ends when manufactured; this exposes the non-plated material in the lead, typically coppe
Electronics Forum | Fri Jan 30 09:55:34 EST 2004 | Mark
I was wondering if anyone is using Fuji Flexa yet first of all. And if so what form of CAD socketing and documentation did you get? At the moment I run SMT programming (FujiCam) and Doc Control(Unidoc) so I will be seeing the whole picture. This will
Electronics Forum | Thu Feb 19 19:34:52 EST 2004 | Tom B.
Jim, There are 2 thoughts to this technology. SMDP (Soldermask Defined Pads) Can achieve more uniform opening of the land, yet as you know Regisration shift of mask can become a problem. Also there has been debate as to whther SMDP cause crack p
Electronics Forum | Fri Feb 27 15:28:25 EST 2004 | DaveM
Both Cyberoptics inline (Cyber Sentry) and stand alone (LSM, LSM2 & LSM300) work well. As previously mentioned, the Sentry series inline systems work well, but reqiuire programming. The LSM series stand alone systems are good, but can be operator dep
Electronics Forum | Sat Mar 06 02:54:25 EST 2004 | tommy
1)Solder paste selection 2)Reflow profile.Focus on soaking and TAL. 3)Moisture control for BGA. 4)Maybe the BGA solder ball already with void. 5)PCB design.Any via on bga land? 6)Solder masking type. 7)Solder paste volume apply on land. 8)IPC class 3
Electronics Forum | Thu Mar 11 12:05:22 EST 2004 | russ
the ones we use have a temp adjust/control. To answer reflowing adjacent components we reflow them during the rework. However if we do not want to reflow we either change the tip on the gun to a more localized area or we apply temporary mask to pre
Electronics Forum | Wed Apr 07 11:21:26 EDT 2004 | stefwitt
Hi Dilbert, it is a step up transformer from 3 phase 208 to 3 phase 380. Each machine does not draw more than 3 Amps per phase. However, circuit breakers are rated at 15 Amps. The transformer has three power outlets, each one has a Perilex (European)
Electronics Forum | Fri Apr 02 11:23:44 EST 2004 | pjc
ECD has some advantages in terms of upgrade path. Once you buy the ECD SuperM.O.L.E., you can use it in a OvenRIDER, WaveRIDER and ReworkRIDER products. The OR, WR and RR are solder machine management devices for solder process control. Where profile
Electronics Forum | Sun Apr 04 15:33:01 EDT 2004 | Jimmy
We are looking at several reflow ovens with intent to acquire one for both air and nitrogen reflow capability (i.e. have the capability to reflow in either air or nitrogen environment). Would be interested to know what I should look for in comparing
Electronics Forum | Wed May 12 08:35:20 EDT 2004 | solderpro
yes this paste is a pain in the paste.... there are very few reasons for solderballs, component to pad ratio and placement.... solder paste control, using a mixer, not hand mixing, checking viscosity and temp..... or simply and bad profile and your
