Electronics Forum | Thu Jun 29 06:26:36 EDT 2006 | AR
Hi Slaine, The terminations are still present on the component but all the solder (including the pad finish) has coalesced on to the terminations. The termination that normally is shiny and bright in colour has turned matte grey on that zone where t
Electronics Forum | Thu Aug 24 16:08:18 EDT 2006 | Frank R.
Thanks Bill and Dave for your help, Sorry Dave if I didn't search for information in archives. After wave process we have 2 ICT, 2 AOI machines 4 PVA conformal coating machine that will be use on 3 different lines. The quind of automation I want to
Electronics Forum | Wed Aug 30 08:06:45 EDT 2006 | scombs
The reason I asked earlier about Gridlok is that we are using the on 2 Dek Horizon printers (since Jan 06) with edge clamps and they work well. We run them in Auto mode so they conform to the board at each print so I do not have to worry about the op
Electronics Forum | Fri Jan 26 16:47:35 EST 2007 | electronhose
IMHO I would avoid sprayed silicones like the plague. They can travel around your facility and cause solder wetting issues that you will never know the root cause for. Also found this e-drive article on using silicones around motors and relays. Loo
Electronics Forum | Mon Feb 05 10:21:21 EST 2007 | davef
Thermal conductivity [W/m-�C] * Silver: 418 * Aluminum: 403 * Copper [rolled annealed]: 392 * Copper [electrodeposited]: 392 * Gold: 297 * Nickel: 90.7 * Tin: 73 * SAC: 73 * Castin: 57 * Pb37Sn63: 51 * Lead: 35 * Epoxy, phenolic: 25-75 * Conformal co
Electronics Forum | Sun Mar 25 22:21:03 EDT 2007 | sleech
Let me explain. At 125 degrees C, the oven is above the boiling point of water. It will be vaporized and eventually be vented from the oven. However at temperatures of 90 degrees c and lower the relative humidity becomes an issue. For the life of me,
Electronics Forum | Mon Mar 05 22:51:05 EST 2007 | davef
Humiseal * HT500 HumiTape silicone free (Kapton tape isn't) * HT600 HumiTape [ESD safe version] Try: Shercon [10425 Slusher Dr, Santa Fe Springs, CA 90670; 800-228-3218 F800-955-8988 562-946-8555 F562-946-1015 http://www.shercon.com] "Conformal Coa
Electronics Forum | Mon Mar 05 15:29:50 EST 2007 | ck_the_flip
When no-clean flux and no-clean soldering first came out in the late 80's / early 90's, there were lots of White Papers written about conformal coating adhesion and no-clean flux. I'm pretty sure all CC's will adhere to today's chemistries. To be o
Electronics Forum | Mon Apr 23 14:05:07 EDT 2007 | Cmiller
Dave, we have the same issue running a new bare board through the oven with no paste. If there is an imcompatibility with our flux would it still manifest itself when there is not flux? Im sure there is some residual flux in the oven all the time. We
Electronics Forum | Mon Jun 25 11:55:47 EDT 2007 | ck_the_flip
I don't think THEY (Humiseal) know how their material cures. I have a data sheet from them for 1B73, and it says 24 hours at room temperature or 30 min. @ 170�F. We use our in-line oven mainly to dry the material and make it tack-free. You would