Electronics Forum | Tue Aug 07 14:39:55 EDT 2001 | SL
I and my fellows have been long term customers of Quad and recently purchased the nineth, I think, Quad machine a QSV as well as two stencil printers in the recent past. My experience with the Quad Corporation has been outstanding in terms of custom
Electronics Forum | Tue Feb 01 21:44:54 EST 2000 | Dave F
Ashok: A fine mess you gotten us into now!!! ;-) You have no good options. BEST OPTION: Get the customer to accept the boards "as is." Rework will only degrade the product. Agree to accept all liability related to this solder condition (which y
Electronics Forum | Wed Feb 02 11:48:48 EST 2000 | Christopher Lampron
Dave, Ashok mentioned that the end termination of the component were dull and grey. I have had similar problems with Murata components exibiting the same characteristics on the end terminations. As it turns out, they have some exotic plating material
Electronics Forum | Thu Jan 27 14:49:53 EST 2000 | Glenn Robertson
Tuan - One of the reasons I suggested pre-tinning (aside from the negative effects of Gold on appearance and reliability) is the known slower wetting of Sn/Ag and Sn/Cu alloys as compared to Sn/Pb. If you don't have to be Lead-free, the high Lead
Electronics Forum | Mon Jan 24 16:37:26 EST 2000 | Kris W
To all, This may appear to be laziness on my part, but I need to ask for some advice. We are in the process of qualifying no-clean solder paste to replace or current RMA paste. I have performed qualification runs and extensive reliability testing
Electronics Forum | Wed Jan 05 16:46:44 EST 2000 | Dennis O'Donnell
Several methods work well. 1. (Low Volume Method) Using an Xacto blade, scrape off the solder mask holding the blade flush being careful not to use the pointed part of the blade. 2. (High Volume Method)Tape off the area that you don't want the mas
Electronics Forum | Tue Dec 24 17:06:00 EST 2002 | MA/NY DDave
Hi, Lots of good answers and I am sure questions in the above. I have too many questions to really know whether your idea is a good one, as it could be, or one that will cause you more problems. Based on the size of the PWB that you will buy and t
Electronics Forum | Thu Dec 16 20:41:56 EST 1999 | TNT
Hey C.K, If you are looking for inspection of the solder paste before reflow, there are many types of inspection: 1.Paste height measurements at random positions 2.3D inspection with shadow contrast capabilities based on an autocad format 3.3D inspec
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 | Wed Nov 03 21:17:40 EST 1999 | Doug B.
Yes this is absolutely true. No-clean flux residue has various affects on the functionality of circuitry especially high impedance circuits. It also affects solderability, and reliability. No-clean flux will always leave a detectable residue. Mos
