Electronics Forum | Tue Jun 13 16:45:30 EDT 2006 | adlsmt
If the only difference is the layer count, check the profile as stated above. If you dont have a profiler you can probably get the local Kic or Mole rep to do a demo on that board. I believe I was the one who stated in an old post that prying the lea
Electronics Forum | Thu Jun 29 08:41:24 EDT 2006 | russ
I agree that a BGA may be the better/easier process overall, but it is not 3 dollars per assy better, I am in agreement that you should be able to handle QFPS just as well as a BGA. PBfree BGAs do not self align BTW, so one needs to keep that in mi
Electronics Forum | Tue Jul 11 21:41:51 EDT 2006 | fordf1502004
I am looking for some help and/or guidance. Our company is currently using a panasonic MPAG3 fine pitch machine, we just recently bought a universal conveyor for the downline operation, when I plug the smema cable from the panasonic into the universa
Electronics Forum | Thu Aug 03 05:25:15 EDT 2006 | Rob
Hi AJ, Just had a look though our parent company's stock on components, and even the smallest of diodes & transistors (such as DFN1006-2 package - roughly 0402)come on 8x4 plastic. All of the 8x2 pitch tapes are paper (EIA: 01005, 0201, 0402; JIS: 0
Electronics Forum | Mon Jul 31 11:27:15 EDT 2006 | Chunks
I am printing convention leaded paste on onto Immersion Silver board. Board has 16mil fine pitch devices. I am having a problem getting the print to stick to board. Or I am having a problem with the stencil. Never experienced this with jobs befor
Electronics Forum | Mon Jul 31 12:59:19 EDT 2006 | slthomas
Nothing like making a handful of changes all at once to confuse an issue, huh? Did you (or whomever ordered the stencil) spec. the same stencil design parameters that you would normally have used? We've never done fine pitch of any sort on silver
Electronics Forum | Mon Aug 28 10:59:34 EDT 2006 | SWAG
Yea, the kapton works good. We've had great success with some pretty fine pitch BGA's. Clean the site well, place the kapton stencil and make sure it's 100% adhered. Apply kapton tape around the perimeter of the stencil for ease of extra paste cle
Electronics Forum | Thu Sep 07 10:45:46 EDT 2006 | vicknesh28
Yes solder is reflowing on the pad but doesnt wick up the lead. Solder paste is sufficient. It just forms a saddle like appearance beneath the failing lead. The failed lead doesnt get reflowed at all. What puzzles me is how can hundreds of leads wet
Electronics Forum | Tue Oct 03 14:14:06 EDT 2006 | slthomas
What is the likelihood that we'll be able to manually dispense paste on 25 mil pitch, 20 mil pads and get away without bridges? We have a CTS Series 753 resnet we need to place and the build qty (30) and board layout (.5" x 1.2" unpanelized, 2-sided)
Electronics Forum | Tue Oct 17 17:27:08 EDT 2006 | adlsmt
Define "pretty easily". Did anyone ever do whatever is making them fall off now before? In most casses where a component "falls off" then someone implements a totally subjective test to make sure the rest of the parts wont "fall off" they damage a lo