Electronics Forum | Thu Mar 14 15:11:33 EDT 2013 | Andy
I am interested in performing SMT Assembly on flex boards that would be a couple of inches wide but 2 to 5 feet long. Obviously quite a challenge. I would like to hear from anyone that may have seen anything similar done, or at least has an idea of h
Electronics Forum | Wed Mar 20 16:21:54 EDT 2013 | woodsmt
I would reccomend at least a 8 zone system when doing RoHs. Most of the better systems (Vitronics, heller, BTU, ETC) built since 2006 should be able to run the higher temps for Pb Free. Should be a lot of them on the market world wide (used) with l
Electronics Forum | Fri Mar 22 04:20:29 EDT 2013 | jlawson
Also Rehm Thermal Systems Ovens would be worth a look... They are well made, ALL stainless tunnel , 3 phase blowers, highly realiable, and they have new entry level series called VXC Series starting at 6 zones+, but based on same tech and build as t
Electronics Forum | Fri Mar 15 12:48:01 EDT 2013 | anvil1021
Hello All.....wondering if anyone out there has needed to isolate a QFN ground pad from the device and how you may have gone about it. We are thinking about using a micro drill to remove the pad, but if anyone out there has a better idea I would be v
Electronics Forum | Fri Mar 15 16:26:04 EDT 2013 | hegemon
Mask the pad on the PWB using liquid solder mask. Cure the mask and away you go. Use a mini stencil and a squeegee to maintain planarity and minimize issues at paste print. We have used this technique before. In other cases we have masked the bott
Electronics Forum | Fri Mar 15 18:44:34 EDT 2013 | anvil1021
We will try both the solder mask and the .001" Kapton and see where we end up with each. This is a fine pitch dual row QFN and we cannot afford too much paste on the .004" stencil we are using. We have experienced shorting in the past with .005" sten
Electronics Forum | Tue Mar 19 13:02:49 EDT 2013 | caurbach
We've used masking tape and peelable (pink) mask to mask our boards before conformal coating for a long, long time. This is a huge time sink, and increases our lead times (particularly because of the cure time for the pink mask). What are other com
Electronics Forum | Tue Mar 19 17:17:25 EDT 2013 | technitelec
Hello to everybody i am looking for someone that can tell me how to bypass one faulty module on Fuji NXT machine, i have one module that is always in Emergency stop i think that the problem is coming from a bad cable and i need to keep ru
Electronics Forum | Wed Mar 20 14:21:28 EDT 2013 | jeffharley
Hello All, I am wondering if anyone has come up with an easy and safe way to drain a solder pot on a wave solder machine? We are getting rid of an old machine and replaceing it with an newer machine and we want to use as much of the solder from the o
Electronics Forum | Fri Sep 20 14:06:27 EDT 2013 | jorge_quijano
We were doing the same a few months ago, it took us 1 shift with 2 persons to drain it (we were repairing a leak), we were disconecting the resistors once they were not in contact with molten solder to prevent overheating... Here you have a pic of t
