Electronics Forum | Wed Oct 15 16:34:36 EDT 2008 | gregcr
Hi All, I am retrofitting a machine with a solder paste dispenser head, and am trying to decide what direction to go, with a dispense valve. The choices I know are either a standard Air over, or some kind of positive displacement valve such as a sc
Electronics Forum | Thu Oct 16 11:15:53 EDT 2008 | davef
A good solder connection with heavy ground plane requires: * Plenty of heat [Is the preheater located too far from the wave? Whenever you look at board temperature, there is a sharp decrease in temperature between the preheater and the wave.] * Conta
Electronics Forum | Thu Oct 30 11:34:51 EDT 2008 | davem
Guys, So I recently started working for a small CM in Southern N.H. We currently use 2 Magic Chef Mini wine friges to store the solder paste (63/37, RoHS). I've been monitoring the room temp (and humidity) and the frige temps all this week. The pro
Electronics Forum | Thu Oct 30 21:06:20 EDT 2008 | ashley
Hello mickd, For Fuji practice, the primary tooling hole preferably be 5mm from the edge of the PCB (lower right hand corner). This is the reference X0, Y0 co-ordinates in the Fuji program where placing co-ordinates going LEFT will be -ve value & go
Electronics Forum | Sat Dec 13 17:46:27 EST 2008 | ysutariya
If you're military then you're probably just needing standard 130Tg FR4 and tin-lead finish. I would check two things: 1. Bake temperature: Isola recommends 300F for 4 hours to drive moisture out. Lower baking temperatures do not require a linea
Electronics Forum | Fri Jan 16 16:36:37 EST 2009 | rwyman
We've used our standard chipbonder- Heraeus PD944- for this type of application. While it does cure before reflow, when the part is placed onto the site, the material compresses and spreads and thus that potential standoff isn't an issue. We've als
Electronics Forum | Tue Feb 03 16:42:50 EST 2009 | cuperpeter
Hello All, > > I have a problem with nonwetting Au > finish after second cycle of reflow soldering > doublesided boards. Solder nonwetted pcb pads (is > wicked to component terminations) Either these > pads or some of non component pads became
Electronics Forum | Fri Mar 06 12:23:39 EST 2009 | stepheniii
Are you working for an OEM? If so see if you can get your engineering department to change their "zero orientation" for the packages. At one place I believe the CAD department called them "G codes". What was really bad there was that one shape had
Electronics Forum | Fri Oct 01 00:49:33 EDT 2010 | darrenj
Yes, we have the Agilis stick feeder and it is a definite improvement on the vibe. It usually comes with a set of starter 'tubeforks', but i bought another starter set after a while since the individual tubeforks are relatively expenisive. Always g
Electronics Forum | Tue Apr 28 21:48:50 EDT 2009 | davef
Confirm the source of the issue. Run a coalescence test on both lots of paste. A simple coalescence test can quickly determine the condition of solder paste after prolonged use. Simply print a small disk [around 4-5mm diameter and 0.2mm thick - a bu
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