Electronics Forum | Thu Jan 08 11:17:14 EST 1998 | Richard
| A potential purchaser of our products (switchmode power supplies for telecommunications) has asked what the benefits of SMT are to him. | Our marketing people wish to obtain a list of the benefits of SMT to the purchaser of the end product. i.e. th
Electronics Forum | Wed Aug 22 21:11:25 EDT 2001 | davef
When it works right, it's a beautious thing. => When goes wrong, you have one board with some of the other board's material, not too coo. Scribed and broken ceramic has bad-butt sharp edges. You'll feel this sticky stuff on your hands, look down,
Electronics Forum | Thu Sep 06 10:58:49 EDT 2001 | davef
If your words imaged correctly, it seems a bit strange to have a trace that is wider than the pad where it connects, because we�re used to seeing a narrower trace connecting to a wider pad. It�s tough to determine what the designer was thinking abou
Electronics Forum | Tue Sep 25 13:01:48 EDT 2001 | Hussman
If the flux you are applying by brush is alcohol based, use some alcohol on a few failed PCBs and retest. It souldn't take a lot of flux to reflow the balls to a pad that's already covered with solder and flux from the first BGA - unless you are cle
Electronics Forum | Wed Sep 26 11:15:59 EDT 2001 | Hussman
What do you folks use for control on your wave solder process? Primarily after wave. I know there are a variety of "wave riders" that will assure proper wave solder parameters, but would like to know what down stream controls some are using. We ar
Electronics Forum | Fri Oct 05 08:35:52 EDT 2001 | Hussman
Hey Steven, Achieving the proper profile like you described does require you to engineer proper conveyor speeds and zone temps. Most conveyorized ovens have the inside of the ovens divided into zones. Each zone has a top and bottom heater that can
Electronics Forum | Fri Oct 05 11:59:54 EDT 2001 | mparker
I am looking to learn of possible causes and solutions for the following problem. A potential customer is demanding that I use a saponifier in the aqueous wash, he has lab test results of former CM's products that leads him to believe it is necessar
Electronics Forum | Sat Oct 13 16:42:35 EDT 2001 | kenbliss
I agree with EMC based on what you described, and they build good pallets along with a few others, a small word of caution is that pallets are bit expensive typically several hundred dollars or more each. So if you find that is the road you go, be s
Electronics Forum | Fri Nov 09 20:33:28 EST 2001 | caldon
There is two directions I see here...1) you are looking for a bid comaprison or 2) you are going to build boards with the machines you cause they are not being used in full capasity. Some OEMs and/or CEMs charge extra for "cut tape" (Not full reel)c
Electronics Forum | Fri Nov 09 16:57:27 EST 2001 | davef
Sure, it�s fine to use the proper amount of flux and no solder when reworking BGA. Recognize that these new solder connections have less metal and a lower standoff than similar BGA solder connections that have not been reworked. This undoubtedly
