Electronics Forum | Mon Mar 27 21:25:01 EST 2000 | Dave F
Pete: Two angles on your question: 1 Yes, the layout of your board can affect the level of bridging you see. 2 That aside, the set-up of your machine also can affect the level of bridging on your board. Shaw, I could set-up your machine to bridge i
Electronics Forum | Thu Feb 17 09:49:02 EST 2000 | JAX
Although I hate to see anyone leave I cannot help but feel that the forum will benifit from it. Once you no longer look at the forum as simply a medium to carry out your technical discussions and start thinking of it as a way to benifit yourself, the
Electronics Forum | Fri Feb 18 10:03:55 EST 2000 | Cunli
Scott, Sorry to see you leave SMTnet. I want to thank you again for being the most frequent contributor in the early days of the Forum, and for your continued partipation and help as editor of the SMT Express. Since archived messages only go back
Electronics Forum | Fri Mar 02 08:52:20 EST 2001 | markkrmp
Are your voids looking like blow holes also? Is this only occurring on the solder joints of the Thru Hole components and Via's? Or does this happen on SMD pads? My experience is that we have seen this but only with some of our older PCB's which are
Electronics Forum | Wed Mar 21 16:32:03 EST 2001 | mparker
The root cause is dependant on the type of solder "splash", ball, whatever, that you are seeing post reflow. If it is smears, then cleaning the stencil underside is probably the answer. Are you using automatic wipers? How many print cycles between w
Electronics Forum | Thu Jul 20 15:47:13 EDT 2000 | Bob Willis
Based on what you have said so far it would be worth trying extra pads and as you may know the drainage pads should be a minimum of three times the length of the pads before them to be effective. Also take some parts stick them to a glass plate and r
Electronics Forum | Mon May 07 09:47:45 EDT 2001 | orbotech
An ultimate truth in AOI is that "you can not avoid what you can not see". At the post solder stage, 2D inspection is typically not enough as it simply "can not see" everything using a single perspective, and therefore, can not detect all of the faul
Electronics Forum | Tue May 22 23:49:58 EDT 2001 | jones
I've never tracked the life of a stencil, but if your seeing an decrease in the life of your stencil you may want to look at the printer itself. What kind of printers are you using? I'm more familiar with MPM screen printers and I have seen were cert
Electronics Forum | Tue May 15 14:23:20 EDT 2001 | medernach
Again, I'm not familiar with your material but SMT Adhesives as a collective group are typically hydroscopic. An increase in humidity in your facility will lower the viscosity of certain materials. I don't want to say who's material I've had bad ex
Electronics Forum | Tue May 29 16:02:36 EDT 2001 | genny
500 insertions � 50 m gold => 300 insertions � 30 m gold => 50 to 75 insertions � 20 m gold => 10 insertions. " Dave stated that the 'm' referred to micro-inches. I could probably insert this board 1000's of times without a problem. Am I missing so
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