Electronics Forum | Thu Jan 13 10:24:35 EST 2005 | SuePH
The pallets are made of a black composite that is 5MM thick, and yes, the bottom is beveled to the cut out space for the connectors. The wave solder machine is a Treiber, so the wave height is hand set. I always aim for the center of the leading edg
Electronics Forum | Tue Feb 01 11:33:26 EST 2005 | Indy
Hi Jay, please let us know your inputs from the seminar regarding SN100 Nihon solder from FCT. This solder seems to have a higher melting temp of 221C. It prints well and visually looks similar to SAC alloy. Have no reliabilty data though. Jay
Electronics Forum | Tue Jan 25 07:49:17 EST 2005 | davef
On "Solder beading seemed to be a problem", consider revisiting the thermal recipe used for reflow. The PTH barrel may not be getting warm enough. On "Component not being designed to pin in paste work, with no proper standoffs", consider: * Using a
Electronics Forum | Wed Jan 26 12:36:14 EST 2005 | Rob Wilson
I saw in a presentation that military testing of lead-free soldering for reliability has not gone well. Basically, unlike commercial applications where the alloys performed better they did worse when under the more extreme military and aerospace con
Electronics Forum | Sun Feb 06 12:03:32 EST 2005 | dhanashekar
can some one give me some suggestion to solve the problem. we are using cooksun/alphametal rma9086 paste for our screenprinting. after the reflow we see lot of solder ball on the board. we have maintained the exact profile given by the manufacurer. w
Electronics Forum | Tue Feb 08 19:10:09 EST 2005 | DasonC
Lead free is not define as NO lead and "a maximum concentration value of 0.1% by weight in homogeneous materials for lead shall be tolerated." Check below link. So replaced your solder from the pot when exceed 0.1%. http://www.leadfree.org/files
Electronics Forum | Fri Feb 18 17:57:46 EST 2005 | Grant
Hi, The normal electronic components you purchase should have lead free variants. Also, all solder paste manufacturers have lead free solder pastes, so you just need to get the paste specification, and then re-profile your oven for it. Temps are hig
Electronics Forum | Fri Feb 18 23:21:00 EST 2005 | JSS
Hi Everybody, Mostly customer asked about the solder paste height checking after printing process.Is it compulsory to check the height if we are using stainless steel stencil and metal blades in fully automatic printer.Any technical answer to their
Electronics Forum | Tue Feb 22 12:42:53 EST 2005 | griinder
I was curious if anyone else has ever added water soluble flux to water soluble solder paste that is only a few days old, but is too dry to use in production. Also, are there any known bad side effects to this process. I have already searched the arc
Electronics Forum | Fri Feb 25 11:37:17 EST 2005 | OverTheHill
I believe I read somewhere, that using leadfree solder in the wave, the dross will actually collect in the bottom of the solderpot. I can't remember where I read this (maybe a nightmarrish dream I had one night). If so, how do you remove it from the
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