Electronics Forum | Wed May 12 16:31:25 EDT 2004 | Mark @ SolderStar
In answer to your questions. (1) pls can any body throw some light on the reflow profiling? Reflow profiling is the process of confirming that you PCB's that pass through your reflow oven are produced within specifications provided by solder paste
Electronics Forum | Wed Dec 12 08:45:37 EST 2001 | zanolli
Dave, In response to your question on flux and heat application; the flux is already incorporated into the solder deposit and the connector usually solders in a standard convection oven profile. If you need more details you can contact me offline
Electronics Forum | Fri Dec 07 09:43:04 EST 2001 | Russ Steiner
I have a mixed technology PCB that has SMT all on bottom, TH parts on both sides (Yes, I realize that's bad. Can't be avoided.) We have designed a 10-up panel, 2 x 5 array. There are 50 leads per bd, 500 per panel. How much time is reasonable to a
Electronics Forum | Mon Mar 13 17:25:54 EDT 2017 | parto
Dear Evtimov, Hi, many thanks for your decent answer. I utterly agree with you that if I would like to have an accurate answer I had to give you more details as you mentioned in your reply.However, I thought that under certain circumstances any prod
Electronics Forum | Fri Aug 21 04:37:26 EDT 2009 | grahamcooper22
Manufacturers of non hermetic SMT components have to test their devices as per IPC JEDEC 20C to check their reflow and moisture sensitivity. In this spec they pass them through reflow 3 times, then check them for damage and retest their performance.
Electronics Forum | Tue Apr 05 03:16:45 EDT 2011 | grahamcooper22
one of my customers with a BTU VIP 70 has the following settings, 100 / 175 / 210 / 250 / 265 with conveyor speed of 18 ins per minute. They get a peak temp of 240~245C and time above liquidus of 220 C is @ 55 secs. Built in thermocouples should give
Electronics Forum | Sat Feb 26 22:32:42 EST 2005 | siverts
The directive is called RoHS. Meaning that is not only the lead that is the issue. The materials need to whithstand a hihger temperature, not only delta T is an issue (but huge). Moisture sensitive devices: how to handle these? You will see an increa
Electronics Forum | Fri Sep 22 02:19:25 EDT 2006 | lead free tester
The directive is called RoHS. Meaning that is > not only the lead that is the issue. The > materials need to whithstand a hihger > temperature, not only delta T is an issue (but > huge). Moisture sensitive devices: how to handle > these? You wil
Electronics Forum | Wed Jan 26 09:51:51 EST 2005 | jbrower
Sure, to be a true lead free enviroment all components need to be lead free or fall within the specifications of lead free as defined by the RoHS Directive. What I am doing is starting stage 1 of our journey. Layed out it looks some thing like this.
Electronics Forum | Sun Apr 25 12:24:45 EDT 1999 | Chrys Shea
| Hello all, | | Our guys here still have some questions on the "optimized" profile which sees a more moderate ramp up straight to reflow temperatures versus the conventional profile which has a plateau at around 150 Celsius. If the optimized profi
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