Electronics Forum: pass (Page 117 of 142)

Production Testing - HASS

Electronics Forum | Tue Mar 27 09:21:45 EDT 2007 | realchunks

Hi Donovan, I guess it really depends on the product, how it's built and how you'd stress test it. Many arguments can be made about how far to test, then when one fails in the field was it due to manufacturing or test? But the bottom line is most

solder paste measurement machine

Electronics Forum | Fri Apr 27 11:24:53 EDT 2007 | realchunks

Hi Steve-O, Good question(s). This process was set-up by an engineer that had a PhD in statistics, took him a year to develop and then thru it over the wall at us. The biggest problem we saw was SPC to measure solder volume. SPC is good for measu

Reflow oven profiling - frequency ???

Electronics Forum | Thu May 17 19:21:39 EDT 2007 | diesel_1t

We are currently using Oven Rider (ECD) to "verify" just the conduct of the peak temperature; we define which product is the higher runner for this line and then with the settings for this product (already profiled with thermal couples attached to th

Mydata A12 tool tip damage

Electronics Forum | Fri Jul 20 07:09:29 EDT 2007 | chrispy1963

Sr. Tech, youre absolutely correct that the X-Wagon (pancake) motor is the one which will do final positioning when moving to a programmed position. The X Axis motor in back of the machine is used for rapid traverse of the axis. I was thinking more

What is gonna impact boards without silkscreen on quality and mf

Electronics Forum | Fri Aug 17 10:50:15 EDT 2007 | Frank

I agree that the documentation should be used and not necessarily the silk screen. The silk screens can be a first line of defense, but nothing beats the proper documentation. Years ago I visited a contract manufacturer that a friend was working at

DI water testing?

Electronics Forum | Sat Aug 25 12:22:30 EDT 2007 | erokc

Is it sufficent to simply put meter probes in the water to get a resistance reading? I'm very skeptical of the Culligan man as they tried to pass distilled water for DI water. As I watched my container being filled I asked how they determined when

DI water testing?

Electronics Forum | Mon Aug 27 11:20:58 EDT 2007 | davef

Q1: Is it sufficent to simply put meter probes in the water to get a resistance reading? A1: No. You need a meter for the purpose. Myron-L [myronl.com] is one such company Q2: I'm very skeptical of the Culligan man as they tried to pass distilled w

Mirtec aoi

Electronics Forum | Tue Nov 06 06:23:31 EST 2007 | clampron

Good Morning Roger, The Mirtec's can be adjusted to lower your false call rate. This can be done by reducing the matching percentage for each componnent but the result of this action is that the machine becomes less selective. If you lower them too

QFN soldering

Electronics Forum | Mon Nov 12 09:37:17 EST 2007 | russ

You need to perform process a capability study prior to putting these controls into place. Cleaning a stencil after each pass will get ugly, solvent residues remaining in apertures etc. 2D inspection is good. Change paste every hour will get very

Selective Soldering Equipment

Electronics Forum | Fri Dec 07 12:01:14 EST 2007 | elg1

The 3000 hours is correct. It was a VERY fast ROI! Back to the discussions on the earlier threads, some of this information is correct. If you exceed the design limitations for keep out requirements and your board tolerances vary, you can have twe

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