Electronics Forum | Thu Dec 09 15:03:39 EST 1999 | Andy Yates
I would suggest that as well as repeatedly inspecting the same board and looking at the standard deviations of the measurements, you should perform some form of accuracy test either by measuring a known glass plate or by inspecting a board at 0 and 1
Electronics Forum | Thu Dec 09 00:15:55 EST 1999 | Vinesh Gandhi
Thanks for your feedback. I definitely agree with your viewpoints. Can you send across any documents/papers through e-mail or post them on the smtnet which clearly describes the HARMFUL EFFECTS OF WHITE RESIDUES. My customer's only apprehension is
Electronics Forum | Mon Dec 06 09:16:22 EST 1999 | Dave F
Russ: Three things: 1 Wolfgang is 100% correctamundo about the slow dissolution rate of gold 2 Shear stength of the gold 63/37 solder connection decreases rapidly, as the gold content of the solder connection increases above 2%. 3 There are many
Electronics Forum | Mon Dec 13 00:05:28 EST 1999 | Dennis O'Donnell
I can't figure out why everyone is plating everything with gold. According to the J Standard, gold plating should be removed before soldering to the surface. The gold, when left on the surface to be soldered will contaminate the solder joint and ca
Electronics Forum | Mon Dec 13 16:07:38 EST 1999 | Travson
Russ, Regarding your no clean soldering to gold. We have been doing that for about three years now. We have been using 62/36/2% silver solder paste. I have not done any thorough testing as to joint strength but the finish is shinier. It looks li
Electronics Forum | Fri Dec 03 13:50:09 EST 1999 | Larry Johnson
I thought that you guys were going to change the site back to the way it was. Where you could read all the responces to a posting at once, without haveing to "click" on each individual responce. It wouldn't be that big of a deal, if the site ran qu
Electronics Forum | Sat Dec 04 09:42:18 EST 1999 | Chris McDonald
Just as explained in a follow-up you are getting too much paste on the pad. The pad is probably the right size but you cant have your aperature the same size as your pad. What we have done is put a Cross in the stencil. This will reduce the paste and
Electronics Forum | Tue Dec 07 22:05:19 EST 1999 | sin
Added to MARK suggestion, you should verify you xy table height also by using the meter listed in the maintenace manual. If everything is fine, then i suggest you should check the placement air kisses( can suck your component back up or release to q
Electronics Forum | Wed Dec 08 23:53:35 EST 1999 | Mike Eskridge
Yes, there are several conveyor companies that make a conversion box for SMP1 to SMEMA and SMEMA to SMP1. Basically they are just to differant standards for cable conections between machines. SMEMA stands for Surface Mount Equipment Manufacturers Ass
Electronics Forum | Wed Dec 01 10:26:10 EST 1999 | Dick Casagrande
My company is in the process of determining whether to setup an in-house SMT line. We presently do thru hole assembly and subcontract SMT boards which are growing in number. The economics are not my main concern now. The intangibles, i.e., control, l
