Electronics Forum | Fri Dec 10 06:06:54 EST 1999 | Wolfgang Busko
Hi Glen, looks like flux or solder mask problem. In your first mail you said that only some boards show these symptoms and others not. First I would check on the differences between those Boards, manufactorer, solder resist, contamination. If that d
Electronics Forum | Mon Dec 06 04:40:39 EST 1999 | cklau
Halo; In your last message you did not mentioned why your customer need to use IPA to clean PCB's as their requirement and what subtances they want to get rid of (is it flux stain PCB's or component?).If so recommend your value customer of flux 910
Electronics Forum | Mon Dec 06 12:37:57 EST 1999 | Russ
Christopher, in response to your request concerning if I have the same issue using OA fluxes the answer would be no. This finish works well with all of our current Water Soluble fluxes. As a note, I have done some further testing and so far it see
Electronics Forum | Sat Dec 04 11:33:58 EST 1999 | Clifford Peaslee
Larry, We will be adding the view all messages in a thread on a single page feature shortly. It is in development. Also, it will be different than before. The previous forum version held the parent messages within its message. Now we will show each
Electronics Forum | Sun Dec 05 22:43:27 EST 1999 | dreamsniper
Charley, Though my reply is quite late, it might be a good info for you and i hope that this info could help or could provide you some views. Some companies practice at least 1 board gap, which means the length of the pcb you are currently loading,
Electronics Forum | Thu Dec 02 11:42:03 EST 1999 | John S.
Dick, My company made the transition from thru-hole to SMT about a year ago. We've been building thru-hole boards successfully for years, but our customer requirements have forced us into the transition. Wolfgang made a very good comment. Start s
Electronics Forum | Tue Nov 23 20:21:44 EST 1999 | Curtis T.
Does any one have any experience with the transition automation permalex squeegee blade (I called them and they couldn't tell me much), or any blade other than the typical nickle coated spring steel. Part of our production has been moved (by our cus
Electronics Forum | Thu Nov 18 19:45:26 EST 1999 | Deon Nungaray
Deon Response: Hello Will, Yes, you can reflow a double sided board using 63/37 solder paste on both sides. There are some limitations as far as the mass of the components to reflow the second time. If you have doubts or are concerned that a compone
Electronics Forum | Mon Nov 15 14:40:38 EST 1999 | Bob Smith
Hi, I have a problem I've never seen before so I hope someone here can help. A recent batch of PCBs arrived where the copper lands delaminate with a small pull. Normally you have to pull pretty hard and the whole land comes off the substrate. These
Electronics Forum | Fri Nov 12 05:14:42 EST 1999 | S L CHANG
We are currently cleaning solder paste (TAMURA SQ-1030FP) from stencil using an ultrasonic stencil cleaner with solvent (HYSPER-Non CFC). The process cycle time is 30 sec. cleaning in 1st ultrasonic tank and another 30sec. cleaning in 2nd ultrasonic
