Electronics Forum | Fri Mar 27 12:44:07 EDT 2009 | stepheniii
Let me be the first to suggest; Get a better oven. 5 zones minimum. If you can't, you will have to have some way of profiling the board. Does the oven have thermocouple ports? If not you will have to buy some kind of termperature datalogger. Mayb
Electronics Forum | Mon Apr 09 14:51:04 EDT 2018 | justconmac
UPDATE The reason for the board count in the wave when there are no boards is due to operators leaving racks with empty PCB slots. The input feed sensor is a little bit more in the center of the conveyor whereas the output feed is a slightly closer t
Electronics Forum | Fri Mar 27 10:04:51 EDT 2009 | ericthered
We have been having problems with proper wetting when running mainly lead free but also leaded solder in our Ersa Hotflow 3. Solder either often looks grainy or doesn't flow over the whole pad. This is generally the case when my profile is 170 firs
Electronics Forum | Fri Sep 08 21:49:24 EDT 2017 | sbar5781
Hello, I have a few PCB boards i am trying to be manufactured that are miniaturized medical devices. Thus they require IPC Class 3 Specs. However as miniature devices they have limited space, including a 0.4mm pitch BGA socket, which currently has
Electronics Forum | Wed Oct 04 09:55:51 EDT 2006 | borgie
Hi. I have product in lead containing process that consist lead free BGAs and also big ceramic BGAs with high temperature bumbs. Pcb tends to bow in a reflow profile, since I need long preheating times and relatively high peak temperature to melt BG
Electronics Forum | Wed Apr 07 22:15:31 EDT 2004 | davef
We're not familiar with the AUG5 from Taiyo. [It doesn't show on their US site.] Is it liquid photoimageable? Printed solder masks are more likely to bleed. But you wouldn't have any solderability with bleed. Your plating seems acceptable [if th
Electronics Forum | Tue Sep 28 19:22:48 EDT 2021 | kumarb
Hi. Aside from the good advice above, wish to throw in our experience with our 1809EXL. Had < 200 on-hours and the oven would not melt the assorted fresh paste we sourced from different suppliers. The s/w reported that the set temps were being
Electronics Forum | Wed Sep 20 19:54:36 EDT 2000 | David Harper
dang nabit
Electronics Forum | jandon |
Sat Jan 10 05:48:09 EST 2015
Electronics Forum | Tue Jan 06 06:56:26 EST 2015 | stivais
How about rework (touch-up) for Class 3? Some say that you are not allowed to rework anything for Class 3. Though I have not found any proof for this 'requirement' in the standards.
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