Electronics Forum | Tue Aug 12 13:40:08 EDT 2008 | ck_the_flip
GR@ICS: Are you drag soldering or point-to-point soldering? Keep in mind. Drag soldering mimics wave soldering. Molten solder is contacting and dragging across the solder mask. Keep in mind, too, that "semi-matt" or "semi-gloss" will also tend to
Electronics Forum | Mon Aug 04 04:58:23 EDT 2008 | stiva
Hi Sound like the same problem that i had. The machine after it had warmed up when initialising would drive the z rod down with the quadalign on checking for the nozzle height (I think). To me it seemed like an overheating problem as after allowin
Electronics Forum | Wed Mar 25 18:29:47 EDT 2009 | badnewz
My Quad IVc's will also do the same thing. Mine are equipped with CyberOptics scanners, not QuadAlign. The Cyberoptics scanners do go bad and once they do, they get very warm to the touch and at the same time, if the Quad is reset, the theta axis wil
Electronics Forum | Thu Jul 31 23:07:55 EDT 2008 | davef
J-STD-006 lists maximum contamination levels for most solder alloys. This is the basis for purchasing solder. The SOLDER BATH contamination levels in J-STD-001 are based on decades of experience. But these contamination thresholds of various metals
Electronics Forum | Fri Aug 01 00:40:06 EDT 2008 | roc2x
thanks,my pad design is 24 x 23 mils and now I chnged my stencil to 24 x 20 mils ship inwrds to lower down my volume. My placement is and part data are ok. My reflow N2 is using 1000ppm, Actual is 700-800ppm I already prolonged my pre-heat butit only
Electronics Forum | Thu Aug 07 17:25:11 EDT 2008 | jlawson
With Laser centering nozzle condition in terms of slider shafts have to return to same position every time. Please check condition of nozzle and make sure slider extends to full position. If slider sticks it can generate errors as the component appea
Electronics Forum | Fri Aug 08 02:24:04 EDT 2008 | jti
Hi, You were right on the money, the day after I posted, I recalibrated the LASER height .020 off on LA head, .01 off on LAIC, running perfect now. Secondary issue is a flicker on the monitor, the grid stays up after teaching XY coordinates, someti
Electronics Forum | Mon Aug 18 16:54:46 EDT 2008 | jlawson
Great to see running. The Vision Monitor Video comes from the Vision Processor Card, including overlay info, grids etc depending on mode you are in, like teaching etc Why is is on still I can not say, could be software version, there was several ve
Electronics Forum | Tue Aug 05 01:13:22 EDT 2008 | Sean
Dear all, As far as I know hot tear or shrink hole defect only happen at plated though hole soldering, especially for those lead free wave process. Recently, a laboratory engineer had done cross section on some of the SMT BGA ball and IC lead solde
Electronics Forum | Mon Sep 15 11:03:51 EDT 2008 | swag
Thanks all for the input. There are no tants. close to these parts. GSx - you are correct in that this is ROHS compliant component so maybe a plating issue. We have done what you describe but to a lesser peak with fair improvement. Not seeing muc
