Electronics Forum | Wed Jul 21 13:18:19 EDT 2004 | patrickbruneel
Thomas, The first thing I would suggest you to do is identify the type of problem your dealing with �pinhole� or �blowhole� before you can take the appropriate action to correct the problem. A pinhole is a void or cavity caused by non-wettable part
Electronics Forum | Thu Sep 02 10:51:45 EDT 2004 | patrickbruneel
Hi Ken, Thank you for the reply Ken. I hope I don�t get my behind in trouble for subject change in this thread. But you hit the nail on the head in your comment with Hitachi, when they converted to lead-free they had a �5 times higher defect rate� i
Electronics Forum | Fri Oct 29 15:43:43 EDT 2004 | glaucon
Forgot details: Use a sample product that you will be running in production. Let each Equipment vendor run a test to meet your requirements. Often with each of these machines (MPM/DEK/EKRA) the key machine features are: -2D Inspection (for minimiz
Electronics Forum | Tue Nov 09 13:36:03 EST 2004 | russ
If I remember correctly since I cannot find my copy of IPC 600, I believe that the 20% reduction applies to "defects" and not the total etch process. By the way what is being used to measure down to .0005"? For this measurement to be correct it wou
Electronics Forum | Wed Jan 26 07:18:13 EST 2005 | clampron
Good Morning TM, We have a table top AOI (actually several of them) We did a side by side evaluation when we first looked at it. We looked at Qualectron, NSpec and Mirtec (Samsung at the time). Some of the criteria that was important to us: *Librar
Electronics Forum | Wed Apr 06 11:10:47 EDT 2005 | smt_rookie
We process a double-side reflow board (10 ups). Chips and IC's on the bottom side while chips, IC's plus thru-hole connectors and IC sockets on top side (bottom side first then top side reflow). In the past, we were not encountering any soldering pro
Electronics Forum | Thu May 05 09:46:04 EDT 2005 | davef
Board fab, Defects, Pad coatings, Gold black plague articles 1 Nick Biunno's article: http://www.nukcg.org/downloadfiles/Hadco%20on%20Immersion%20Gold%20failures.pdf 2 George Milad's article: http://www.circuitree.com/ct/cda/articleinformation/featu
Electronics Forum | Thu May 26 06:59:06 EDT 2005 | CLampron
Good Morning, We have several Mirtec table top machines. We bought the first one when it was under the Samsung name. We had the advantage of doing a side by side comparison with several other systems. The Mirtec was the leader in performance. Since
Electronics Forum | Thu Jun 23 09:07:39 EDT 2005 | CMiller
I have owned an Agilent SJ-10 and currently a YesTech machine. I dont know about any other manufacturers but I can tell you Agilents support left a lot to be desired. I dont know if it is the people or the company but I have major issues with the w
Electronics Forum | Thu Aug 11 21:43:19 EDT 2005 | Ken
Those temp stickers are useless unless you can stick them into the copper barrel. They can only determine "skin" temperature which has nothing to do with what is happening in the barrels. Your solder is filling the barrel then going cold. I'll gua
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