Electronics Forum | Tue Jul 12 08:54:34 EDT 2016 | leeg
well there you go. I found that trying > different values in the "Placing Stroke" had a > big effect. I changed it to 2mm and it placed > them well, but I could see the board also flexing > a little, went to 1mm and the problem came back, > so
Electronics Forum | Mon Sep 12 20:24:26 EDT 2022 | stephendo
I'll answer the easy part. If you put low temperature trays in the oven at 120C, they will warp and partially melt. I have seen it more often with reels of LEDs. Someone is told to bake them before use so the put them in the batch oven and the next
Electronics Forum | Tue Sep 13 14:10:13 EDT 2022 | emeto
You can have a dry cabinet with or without heater. They use desiccants to take the humidity out from the parts. As you can imagine it will be a lengthy process. The ones with heater can do 40C, which will be preferred for plastic and paper tapes. I w
Electronics Forum | Thu Sep 15 19:32:51 EDT 2022 | totech
I would like to Add that Mitch is very knowledgeable on this subject, I believe since 2008 this has been a topic of his .. different of low temp baking 40c 50c 60c vs 90c or 125c I do have some totech independent evaluation on the subject if you lik
Electronics Forum | Fri Feb 23 09:55:02 EST 2024 | carl_p
Got you. 225C for peak does seem low to me. Henkle is the main one i've used with a peak of 245c & Alpha around the same although I try to keep that at no higher than 235C as we use it for LED arrays. If the peak is that low, is the liquidus te
Electronics Forum | Fri Feb 23 11:50:14 EST 2024 | emanuel
Unfortunately it is not possible to post pictures here. It looks the same as in these photos: https://yic-assm.com/wp-content/uploads/2019/06/dewetting-1.jpg https://res.cloudinary.com/engineering-com/image/upload/v1577777622/tips/20191216_174750_1_a
Electronics Forum | Wed Aug 07 11:55:31 EDT 2002 | slthomas
Ron, have a look at http://www.fda.gov/cdrh/dsma/cgmphome.html It would be a nightmare, if your plant is not structured to support it. It's a huge pain in the fanny even when you (alledgedly) are. I'm not sure what you're pursuing, but if you're c
Electronics Forum | Thu May 05 01:50:44 EDT 2016 | darby
Dear Forumites, It's been a while, but I have a question. I was recently asked to provide a scenario on capacity if we retired two older lines and replaced with a new line. My capacity figures were based on real time production over a period of six
Electronics Forum | Mon May 08 08:54:28 EDT 2000 | Lee Radney
Ok... Anybody got any quick, low cost ideas that can help me here? We run various panel layouts (all products are same width) thru our reflow oven. The problem is that due to the different layouts of our panels, the moveable center support chain
Electronics Forum | Mon Sep 21 09:45:17 EDT 1998 | Dave F
| am working on the design of a showboard to demonstrate our | assembly capabilities. we are working with double sided assemblies involving BGAs and CSPs. could someone suggest | types of BGAs/ CSPs (type, name, I/O, etc)that would be a challenge t
