Electronics Forum | Tue Mar 08 11:50:55 EST 2011 | pgoodyear
As a technician that does frequent board level repair / rework some issues have come to mind. I have been an electronics technician for almost 50 years. In that time I have seen the evolution of electronics from point to point wiring using vacuum
Electronics Forum | Wed Sep 29 22:41:54 EDT 1999 | Dave F
| Does anyone know of a web site (or other source) that illustrates the orientation of polarized SMT packages with respect to the carrier tape sprocket holes? | | THANKS, | | Doug | Doug: I believe EIA-481 is the spec. you're looking for. You ca
Electronics Forum | Sun Jan 13 19:44:02 EST 2008 | grantp
Hi, We need to solder a USB plug onto a PCB in our SMT machines, and this is the same type of plug you see on USB storage devices. It's a very flat connector with 4 SMT pins, however the hard part is the bottom of the connectors is the same level
Electronics Forum | Mon Sep 20 11:50:26 EDT 1999 | Wolfgang Busko
| Hi all, | | As a student in elctronic sciences, I'd like to know why there is a difference in the voltage required for PC boards with surface mounted devices and the voltage needed by traditionnal components like leaded film capacitors? | | I won
Electronics Forum | Wed Jul 28 16:48:13 EDT 1999 | Earl Moon
| | Yeh Dan, | | | Bought one of those DEK/Universal 265's awhile back. Swear it went faster with their name on it. Never done AMI. What's it all about? | | | Earl Moon | | Hello Earl! | | I have spoken to AMI a couple times while trying to do so
Electronics Forum | Tue Mar 09 14:22:09 EST 2004 | billschreiber
There is an article on our web site by Richard Clouthier, �SMT Stencil Cleaning: A Decision That Could Impact Production.� He talks about how high pressure sprays can damage the delicate land mass areas between fine-pitch apertures. High pressure ai
Electronics Forum | Thu Mar 04 15:34:55 EST 2004 | adlsmt
I agree with above but would like to add: 1. You may want to try something like Bioact SC-10 wipes to clean your stencils. If what your using works good stick with it. Ultrasonic cleaners are expensive, take up room and my experience has not been go
Electronics Forum | Wed Aug 18 08:38:46 EDT 1999 | Jason Gregory
| Is there process by which one can do a double sided reflow (SMT on both sides) in one pass through the oven? | Paul, Here's a way it might be done. Screen your bottom side with paste (if only passives, 0603-1206 & sot 23's), dispense glue for sam
Electronics Forum | Mon Mar 29 18:17:48 EST 2004 | kerryn
It should be noted that some of the main reasons to change from manual cleaning to automated stencil cleaning are: � Manual cleaning is not consistent � quality is totally in the operators hands � Contamination left on the stencil and in the aperture
Electronics Forum | Mon Jul 22 09:53:13 EDT 2019 | kylehunter
Hey all! As background, I recently purchased a full SMT line for my company. We have a DEK 265, an assembleon opal xii, and a Heller 1500. Currently our jobs are leaded, and the heller is working perfectly. An upcoming job that we are potentially g
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