Electronics Forum: second (Page 171 of 241)

Juki Parallel pickup not working

Electronics Forum | Tue Aug 02 14:05:42 EDT 2022 | jojoled

Hi Evtimov,thanks. Well the "paralell pick" doesnt work at all if place the feeders exactly 104mm apart (for example feeder position 31 and 43) which is exactly the distance of the 2heads..even I put the feeders in 10 and 50 for example, it still pic

Solder paste jetting vs time pressure dispensing

Electronics Forum | Mon Jun 19 12:42:16 EDT 2023 | daniel_stanphill

The my700 can dispense 1 million dots per hour. It's not an exaggeration either. It literally never stops moving, and is dispensing without contacting the board. It uses the same type of mathematical calculations that a plane dropping a bomb uses in

Cleaning PCBs with a MEMS microphone on it

Electronics Forum | Thu Oct 05 13:24:42 EDT 2023 | rgduval

So, a couple of things... First, you're asking about water washing a part, but, note that the manufacturer says to NOT ultrasonically clean their microphones. Those can be two different cleaning types...assembly shops using water wash may not be us

Handling Part Substitutions as a CM

Electronics Forum | Tue Oct 17 00:59:22 EDT 2023 | kylehunter

We are getting back into contract assembly work. We have an older Assembleon (Phillips) pick and place machine. In a program file it just stores the part number and footprint as identifying information. If we are running a job for a second time and t

Re: Solder Paste...

Electronics Forum | Mon Oct 18 05:23:01 EDT 1999 | Brian

Steve What do you mean by better? More/less activity? fewer retouches? longer shelf life at ambient temperature? less hygroscopicity? longer open time on the stencil? easier to wash? easier to treat waste water? easier for washing machine maintenanc

Re: Reflow oven for solder side components??

Electronics Forum | Fri Aug 13 10:19:35 EDT 1999 | Boca

| | We are using a mixed technology process with mostly through-hole parts plus some SMT IC's on the component side and some passive SMT parts on the solder side. We do not have a proper wave soldering machine for doing solder side SMT (double wave

Re: En-Tek Coating

Electronics Forum | Tue Oct 06 17:17:44 EDT 1998 | Chrys

| We are experiencing poor wetting on various components placed on a PCB with En-Tek coating. Is anyone else experiencing simular problems ? We have the following questions: | | 1. How can the thickness of the En-tek coating be measured? | 2. Is En

Re: Moisture Bake-out of Plastic Parts

Electronics Forum | Tue May 26 15:49:05 EDT 1998 | Earl Moon

| | We currently bake plastic SMT parts in accordance with the IPC guidelines for moisture sensitive parts. Because we have double-sided boards that are subjected to either an aqueous or semi-aqueous cleaning process, we do a 24 hour bake at 125 deg

Re: Reflow oven feedback

Electronics Forum | Thu Mar 05 16:54:53 EST 1998 | Brian Stumm @ ETS, LLC

Not sure if you are open to looking at additional vendors but if you are we would love to compete for your business. Go to our web site then call or e-mail me for additional information. Sincerely, Brian Stumm Thermal processing consultant Reflow an

Process control, SMT inspection and rework

Electronics Forum | Tue Apr 09 15:23:05 EDT 2002 | Alan W.

I have recently signed onto a company with very little board assembly experience. I am trying to develop a process control and continuous process improvement program for a new surface mount line, but have run into several people who are not really i


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