Electronics Forum | Thu Nov 08 10:52:22 EST 2012 | Bryan Ng
I am considering using high-temp ball Sn10Pb90 + eutectic solder paste for MLC reflow (no underfill). You can see that there is no Intermetallic bond for the paste and the balls. Under high stress/shock condition, the solder joints develop micro c
Electronics Forum | Mon Nov 12 15:21:09 EST 2012 | davef
High-temp ball Sn10Pb90 + eutectic solder paste is common place for MLC reflow. Temperatures necessary to alloy the high-temp ball Sn10Pb90 and eutectic solder would be high enough to compromise interposer, board and many components. What are your:
Electronics Forum | Thu Nov 08 12:10:53 EST 2012 | cdeguchi
Hello, We have 2 AOI Automatated Inspection Systems, Model YTV-BV, as we are going through auditing and the Auditor requests that we need to have documentation to indicate whether the units are required to calibrate annually or not. Please kindly r
Electronics Forum | Sat Nov 10 19:54:04 EST 2012 | kahrpr
Some people put spark gaps on the PCB it a trace that comes to a point that's exposed from the circuit you are trying to protect to a trace that comes to a point from the ground trace. The 2 points are about .005 inches apart. When the charge hits th
Electronics Forum | Fri Nov 09 10:02:46 EST 2012 | stiva
I have accuired a Novastar 1800A Reflow Oven, But no Documentation. I am trying to alter the profile of the machine, but cannot access the setup menu. The screen says enter the security code to continue. Does anyone know what the security code is for
Electronics Forum | Mon Nov 12 18:52:16 EST 2012 | cdeguchi
Hello, We have a Blackstone Stencil Cleaner, CH-2408. Again, we are going through auditing and the Auditor requests that we need to have some type of document to indicate whether the unit is required to calabrate or not. Please kindly reply and let u
Electronics Forum | Wed Nov 14 09:19:45 EST 2012 | davef
Sent: Wed, 14 Nov 2012 08:23:03 -0500 Subject: RE: SMTnet Forum: Question About Blackstone Stencil Cleaner, CH-2408 Dave, This E mail is to confirm that the Stencil Cleaner Model CH-2408, manufactured by Blackstone-NEY Ultrasonics, does not require
Electronics Forum | Tue Nov 13 22:40:02 EST 2012 | davef
I expect that suppliers can just about always hold solder mask registration within a true position of 3 thou. That's the old SMT padstack think ... make the solder mask openings extend 3 thou larger than the copper. That way, even if the copper and t
Electronics Forum | Tue Nov 13 11:41:23 EST 2012 | dontfeedphils
I can't remember what motor control cards in the machine are interchangeable, but if the controller card for the theta axis is a common control card then you can swap out the one currently controlling the theta axis with a different axis and see if t
Electronics Forum | Thu Nov 15 23:45:53 EST 2012 | jaimebc
robgd3, The Z motor can be purchased separately, however, the theta motor can't. You need to buy the whole midas head. I didn't get as far as dissembling the theta motor casing to get to the theta motor. That was my worse case scenario. We ran thou
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