Electronics Forum | Mon Mar 21 11:10:32 EST 2005 | blueflag
Help We are having trouble soldering the above we have changed pad size but still have problems ???????
Electronics Forum | Tue Apr 05 01:23:36 EDT 2005 | iwan
Seems what russ told me is make a sense, I will try to get a good connector or at least try daves recommendation if there is no changes. Thanks guys
Electronics Forum | Tue Apr 05 18:32:40 EDT 2005 | Grant
Hi, I guess it matters a lot how fast you can change over the machines, then it becomes more cost per placement I guess. I have heard oursourcing companies purchase most of the parts, and I guess there is a lot of money to be made on that. Regards,
Electronics Forum | Fri Apr 15 11:52:09 EDT 2005 | vikkaraja
Part is being pre rotated already and I also changed the nozzle size from 15mm to 17.5mm this morning. There is no board warpage at all and production is watching for it while an operator puts on a barcode label.
Electronics Forum | Tue Apr 19 09:09:28 EDT 2005 | russ
Here is one reason- It eliminates the viscosity change during printing operation from the paste warming up and getting thinner. I would contact your paste supplier and have them give you the full list.
Electronics Forum | Wed Apr 20 11:08:05 EDT 2005 | py
usual solder cream has a viscosity above 800 000pas at 25�C for each 1�C the viscosity change about 30 000 pas at 15�C you will have nothing ( 37% of viscosity less)on your board...
Electronics Forum | Fri Apr 22 11:27:14 EDT 2005 | chunks
SMT adhesive works great! We actually cut stencils to print adhesive in between areas that always solder short over wave. It's the perfect solder resist. Change a customers board? I thought only Satin could do that?
Electronics Forum | Sat Apr 23 14:14:12 EDT 2005 | indy
i suggest not more than 3 too. if u r runnin more than 3, do electrical test..and look for visual changes Indy
Electronics Forum | Wed Apr 27 23:00:06 EDT 2005 | pdeuel
Definetly need more infomation. What kind of machine? What type of tool? Where in the process id damage noted, before or after reflow? What type of part? have you tried changing vendor?
Electronics Forum | Fri May 13 15:43:17 EDT 2005 | billscheu
just use 63 37 solder for repair. I do not know of any specification which prohibits this and until the people who create the rules change them this is the best. I thought mancorp was an importer of equipment and am thinking they do not have the i
