Electronics Forum | Tue Nov 28 21:07:44 EST 2000 | Alvin K
Gold is porous and spots on gold plated PCBs is one of the drawbacks of using gold as a solderability protector. Base Nickel exposure seems to be the cause of this and is aggravated when the gold thickness is less than what it should be. I agree with
Electronics Forum | Mon May 21 04:30:17 EDT 2012 | adetuc65
Hi, I need some advice. What should I look at when buying a new X-Ray machine for off line BGA inspection? Should I concentrate on spot size?, Sensor resolution ? I need 130-160Kv and 70 degree Tilt axis board size about 30cm x 30cm Any suggestions
Electronics Forum | Fri Sep 10 00:02:14 EDT 2004 | Darren
Dror, If I understand your question correctly, you would like to know what the operators should be doing in what priority during setup or changeover? Simply stated if you are doing on line setup due to limitations in feeder quantity or manpower avail
Electronics Forum | Wed Nov 21 12:29:52 EST 2001 | mparker
Now that we know where you've been and what you wish to accomplish next, I can still give you some suggestions. 1. Get IPC-7912. Use it to evaluate your CM's. Especially if you have multiple contractors supplying like products. You will quickly see
Electronics Forum | Thu Aug 06 09:51:20 EDT 1998 | Bob Willis
This text may be of interest to any one with tin lead spots Guide to Solder Spots - A New Plague in Manufacture ? So what are solder spots ? They appear to be the next big problem in modern reflow assembly in fact in any process that involves solder
Electronics Forum | Fri Jun 19 15:03:15 EDT 2020 | jmelson
OK, I am really happy with the robustness of my CSM84. I wonder how hard it would be to hack up one of these 3-phase machines to run off single-phase power? Mostly, it just feeds a big DC supply for the X-Y servos. 2 heads with ANE should be just FI
Electronics Forum | Wed Jan 03 14:56:31 EST 2007 | bman
We also use PS-094 sized labels, and they don't give us any problems. I'm sure you're way ahead of me on this, but just in case, make sure that the sensor is lined up with the notches beside the labels and not the round holes on the edge of the roll
Electronics Forum | Tue Jun 05 21:14:10 EDT 2001 | davef
You aren't going to post our stuff on your "Hey, I'm the wizard site", are you? Board fab, Pad coatings, OSP 1 OSPs: Imidazole (Via Systems) is good. Entek (Enthone) works, but requires strict thickness control in fab. 2 Enthone CU56 allows one t
Electronics Forum | Thu Jun 13 20:55:46 EDT 2002 | russ
Having just gine through a similar problem myself (with much less equip.) Here are a few things to consider and/or look at Do you have the proper pad size? It should be the same size as the pad on the BGA. Is the board warping during your operati
Electronics Forum | Fri May 02 08:43:48 EDT 2008 | chineechooze
I am Indian and a guru in industry so let me answer questions one by one 1. What is the future status on thru-hole boars, are they going to stay for long time on a market? TRU-HOLE MAKING A BIG COME BACK. THEY COME IN THE LEADFREE NOW. 2. Which
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