Electronics Forum | Tue Dec 14 03:45:31 EST 2004 | rlackey
I don't think that the ones I encountered were "fake", I think that they were cheap copies - ie. actually meant to work, not just to part someone with their cash - engineered to a price (just a very low one!). It does seem a bit strange to go to the
Electronics Forum | Fri Dec 17 14:13:18 EST 2004 | Claude_Couture
I have done this several times in order to save my butt: adding liquid flux in a jar of not so fresh paste, stirring it slow for 2-3 minutes, to make it usable. Of course, use no-clean flux for no clean paste, etc. During one production slow-down,
Electronics Forum | Fri Dec 17 14:30:42 EST 2004 | Dreamsniper
I goy this issue: Voids in almost every ball of my BGA's prcessed since we changed our BGA via tenting to double tenting. The tenting is done with a dry film application to fill the via from the solder side then apply LPI Mask on the surface of the
Electronics Forum | Fri Dec 17 14:31:52 EST 2004 | Dreamsniper
I got this issue: Voids in almost every ball of my BGA's processed since we changed our BGA via tenting to double tenting. The tenting is done with a dry film application to fill the via from the solder side then apply LPI Mask on the surface of the
Electronics Forum | Sun Jan 09 19:37:15 EST 2005 | Bob R.
I'm just thinking out loud here with no experience to back it up, but I could see where you're trapping air or solvent filled voids inside the via by tenting from both sides. When you go through a heat cycle like reflow or wave solder you could be e
Electronics Forum | Mon Dec 20 21:16:30 EST 2004 | adlsmt
DeHart went out of business some time ago. I do not know if someone bought the rights to sell spares but I do have a DeHart printer in storage that perhaps can be canabalized for the parts you need. I got it at an auction but it has some type of sens
Electronics Forum | Wed Dec 22 10:18:52 EST 2004 | tonyfox
Our company laser re-ball's BGA down to 100 microns ball size. One of our OEM customers have asked us to function test there BGA on Mobile phone PCB's. Origionally we thought of a test sockets however the sockets interfere with other devices on the P
Electronics Forum | Wed Dec 22 23:29:57 EST 2004 | KEN
Check with Dupont's web site. They have a wealth of information on the various polyimide products they manufacture. I was quite surrised at the differences in materials and in particular the dimensional stability and hydroscopy. Good stuff mayna
Electronics Forum | Wed Dec 29 17:58:30 EST 2004 | carterhoward
Hi All, We�re a C-M and have been using C-Cam for about 4 or 5 years now. We we�re one of the first customers on there 16 bit platform, so we�ve seen a lot of changes. Our company runs Philips with PPS, and C-Cam has been a rock sold platform. As f
Electronics Forum | Fri Jan 07 19:49:26 EST 2005 | Darren
I just went through the spiel about these Agilis feeders one of the questions I asked was "Does the part that separates the cover tape from the carrier ever gum up or jam?" I was told they have never seen any problem from this issue, but when you men
