Electronics Forum | Tue Feb 13 05:11:58 EST 2018 | ameenullakhan
Hi, We are using 10+2 reflow oven ( BTU Pyramax 150 ). We have tried with short TAL ( RTS profile too ). As of Now we are using the attached profile, which has given us lot better results. But the issue is not eliminated. Thanks
Electronics Forum | Tue Feb 13 06:43:39 EST 2018 | ameenullakhan
Attached is one more profile we have tried with high reflow time. The issue with before and this profile is reduced a lot. But not eliminated.
Electronics Forum | Wed Feb 14 02:08:40 EST 2018 | ameenullakhan
Hi Sweetoldbob, Thanks. We are using SMQ92J solder paste ( Sn63/Pb37 ). We are on higher side of reflow time for leaded paste. Regards, Ameen
Electronics Forum | Wed Feb 14 04:48:58 EST 2018 | ameenullakhan
The profile I have shared is for SMQ92J leaded solder paste
Electronics Forum | Tue Jul 21 16:29:44 EDT 2020 | emeto
You have some of the 642s still running? This is impressive. I used to have coupe of these 11-12years ago and I used them for exclusively for simple assemblies with passive components bigger size even back then. Even 0402 was challenge for these base
Electronics Forum | Thu Jun 08 20:07:32 EDT 2023 | daniel_stanphill
The answer to this lies within the datasheets of the components on the board. Each component has its own specs as far as number of heat cycles, time at reflow, peak temperature, whether it can be washed, etc. You do not need to be as thorough on th
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 | Mon Apr 23 17:03:14 EDT 2007 | Theresa Spear
Thank you all for your feedback. Our backside are 99.9% with passive components. However, we do have a lot of through hole components on boards. To go totally selective soldering the equipment can be quite expensive. Most of the time, we left the com
Electronics Forum | Thu Nov 12 12:05:06 EST 2009 | valeo
Up! Thanks anyway for your answer Lynn. But I'm still in the issue regarding the assembly of passive components on substrat with conductive adhesive. We hardly reach the minimum specifications of shear strengh for each component we use (1206, 0805
Electronics Forum | Fri Nov 07 18:12:50 EST 2014 | cot628
This issue is coming from a customer. The customer demands that we do not mechanically center or test passive components, because of issues they had in the past. There has been a studies that it takes about 8-10 newtons to damage chip. Most of our pa
