Electronics Forum | Thu Feb 23 13:29:12 EST 2006 | pjc
http://www.practicalcomponents.com/indium-pcb409.htm
Electronics Forum | Sun Jan 05 20:10:16 EST 2020 | sssamw
Yes, you may need tell us how the PCB designed, how it re-flow(even it's Indium voiding formula), how stencil is. The void ratio means area ratio, not diameter ratio, so you need calculate it. If you have high ratio void, show its picture.
Electronics Forum | Mon Mar 08 19:31:07 EST 2004 | Ken
Check out Indium Solder. They have an evaluation board "from Hell"!!! I believe they sell it for eval purposes...will supply cad data for stencil as well as pcb's for print test. I was stunned at the complexity. Hope this helps
Electronics Forum | Sun Feb 27 17:06:18 EST 2005 | Darby
This is the profile we came up with on a 1500 to satisfy the parameters suggested by Indium. This was on an FR4 1mm thick 4 layer pcb that I would descrbe as medium density, QFP, SOP, AL-CAP, TANTS, D-PAK, MINI SPRING COIL, SOT and CHIPS were all use
Electronics Forum | Mon Dec 25 08:43:35 EST 2017 | arjunkolavara
Hi , We are having Pin hole issues on the passive locations in the board after the SMT reflow process. Details: PCB surface Finish : ENIG . Solder paste : Alpha OM338 – M13 / Indium SMQ92J Location : Its Random and more on passive components. {
Electronics Forum | Fri Jun 28 03:04:21 EDT 2002 | Dreamsniper
Forgot to include the following: Dwell time is from 55 secs to 68 secs. Indium specs for the paste is maximum peak @ 228'C and 30 to 90 secs dwell time above 183'C. PCB is a 6 layer board with Dimension of 205 x 166 mm but is slightly dense with 11
Electronics Forum | Thu Jan 10 02:16:09 EST 2019 | ameenullakhan
Hi Steve, Thanks. This from the trusted supplier. HASL finished PCB. Even PCB supplier is using the water wash flux for fabrication. Its almost eliminated with N2 environment. And we had got a expert view from Dr. Lee of Indium on the issue st
Electronics Forum | Thu Oct 05 13:00:54 EDT 2006 | Mario Scalzo, SMT CPE
Good afternoon! We have a Hand Assembly & Rework Pb-Free RoHS compliant kit available! Please email me offline. Should you have any further questions, please don't hesitate to ask. My contact information is below. Regards, Mario Scalzo, SMT CPE
Electronics Forum | Wed Oct 30 02:37:58 EST 2002 | Dreamsniper
Hi Guys, I have a fine pitch QFP that I suspect of having a solderability (wetability) problem. The heel joint is 50%-75% of the lead thickness so it means that I passed the IPC Class 2 recommended criteria on the Heel. The toe has at least 25%-50% s
Electronics Forum | Tue Mar 17 09:06:25 EST 1998 | Justin Medernach
| | Hi all, | I would like to have some information regarding the paste in holes process.We are the Backplane manufacturing and dealing with lots of thick PCB and would like to change the processes from wave to paste in hole.Any feed back of info
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