Electronics Forum | Wed Jan 15 12:10:22 EST 2020 | emeto
Avillaro, I don't have hands on experience with Vapor Phase equipment, but my guess is that it will work better for thick boards like yours. Trying another chemistry is a logical move. May be it is worth trying the fixture for connector flatness as n
Electronics Forum | Fri Feb 28 08:48:00 EST 2020 | SMTA-Joe
We've made the decision to move towards Gold Immersion on our PCBs to eliminate flatness issues with QFNs and BGAs. Land/component pad geometry, population density, and other factors, have made it necessary to ensure a near perfectly flat surface tha
Electronics Forum | Fri Oct 23 05:02:34 EDT 2020 | gabriel1blue
I change the settings to match another machine we have and that actually got the original drives working after replacing the belt. I ordered an adapter that will connect to the 26 pin flat cable and adapt to a 34 pin connector and pull the power from
Electronics Forum | Sun Feb 28 13:51:56 EST 2021 | bengill
We have a unique connector with flat leads, i.e. the leads leave the connector body flat parallel to the pads. The leads are without a heel, they are flush with the connector body. Moreover, one can't solder beneath the connector because the leads ar
Electronics Forum | Thu Apr 03 09:48:31 EST 2003 | davef
R1: Contacting Altera to find out if the BGA pads are gold. D1: Bet money the pads were ENIG. R2: Contacting Altera to find out if they use abrasives. D2: If abrasives were the problem, you�d see it in many pads, especially those close to the probl
Electronics Forum | Thu Dec 28 16:17:23 EST 2006 | joey_dragon
Good tidings, all. I am looking for a machine that will allow us to mount a flat flexible strip (such as TennRich's B.Type) to a row of pads on a PCB. I have not much knowledge about the process, I guess I expect to see a machine with some hot bar.
Electronics Forum | Tue Jul 15 09:02:09 EDT 2008 | ehess
Has anyone using these ovens had any problems with the chain (flat) belt slipping? I suggested to the tech we remove a link in the flat chain, and he responded it would make it out of warranty. It's the same type of chain flat belt as most wash and
Electronics Forum | Tue May 08 08:26:15 EDT 2001 | caldon
Yes Siemens has a fixed tray feeder for matrix trays. If I remember correctly the tray will occupy 1/2 of the table.The feeder is a two part system 1) is the base 2) the the flat tray (just like what is used in the waffle pack changer). the flat tray
Electronics Forum | Mon Jun 18 21:21:25 EDT 2001 | davef
Two things: 1 A flat surface will probably help the "balls on the socket sliding off the ridge of HASL" problem, but possibly consider less risky choices for your flat surfaces that immersion silver, like: OSP, ENIG, and immersion tin. 2 Don�t throw-
Electronics Forum | Fri Nov 16 10:53:30 EST 2001 | Carol Stirling
Hello Everyone, Our board supplier changed our board surface finish on a prototype to flat solderable tin (FST) because of the PWB thickness (.125"). The pads seem to be contaminated, particularly on second side pass through reflow. The solder appea
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