Electronics Forum | Tue Feb 21 01:32:49 EST 2017 | soldertraining
Looking for advice on soldering lead free paste to a board with very heavy gold plating, In my opinion, Gold contact surfaces are often used on circuit boards with membrane switches which is a choice of technology for industrial, commercial and consu
Electronics Forum | Mon Feb 20 15:28:15 EST 2017 | fuzz
Hi guys. I'm dealing with 3 MPM Ultraprint 3000 machines in our plant that were showing different issues. I managed to solve most of them but one is killing me and I can't seem to solve it. It's a 3000 HiE model... Basically, the machine seems to be
Electronics Forum | Tue Feb 21 17:11:24 EST 2017 | u4bga
We're about to setup our own soldering process... I have some experience from the contract manuf industry. Types of solder processes: - tip soldering robot for low volume - Japan UNIX LASER soldering machine for high volume Questions: 1) Examples
Electronics Forum | Sat Feb 25 12:01:28 EST 2017 | ttheis
I'm setting up a asymtek millenium m-cob style dispenser for the first time and running through the master offsets routine but when it attempts to find the needle in the nsz needle sensor it works in the x direction but when it attempts to locate in
Electronics Forum | Mon May 14 04:00:15 EDT 2018 | sarah2018
Before you buy glue dispensing machine, you need tell the supplier two question as below: Two questions before purchase 1.What’s type of glue do you use ? What’s the base characteristic ? A)One-component or two-component (A&B glue)； B)What is the A
Electronics Forum | Fri Mar 10 11:29:46 EST 2017 | mmjm_1099
What part of the country are you located? I know numerous stencil manufacturers in the country that I could refer you to. The one we currently use is Stentech and guarantee next day delivery for basic laser cut stencils. They have always kept their w
Electronics Forum | Tue May 01 20:40:38 EDT 2018 | sarason
In the past I have worked on 600 Amp FET Blocks. The rule was no voids. The circuit board would be heavy copper. 4 times normal plating time. Not particularly high resolution on the board say 20 mils. To help with the heavy plating. The boards were t
Electronics Forum | Wed Mar 15 13:35:40 EDT 2017 | scotceltic
I have a double sided PCBA setup. I have MSL components on both assembly sides. When I run Assy Side one I am within the allotted hours remaining on the MSL component. I then wait 40 hours before running 2nd Assy side. By then the hours on the 1s
Electronics Forum | Fri Nov 03 11:30:29 EDT 2017 | davef
regarding dwl comment, "For low volume hand assembly, deionized water or IPA should work fine." Deionized water: Deionized water is corrosive. It needs to be removed. Proof? Drop a copper coin into a covered jar of DI water and watch what happens ov
Electronics Forum | Fri Nov 03 15:43:20 EDT 2017 | dleeper
IPA and DI water are both very common and effective methods of cleaning PCBAs. http://www.zestron.com/sa/cleaning-applications/smt-electronic-cleaning/pcba-cleaning/aqueous-cleaning.html http://blog.gotopac.com/2010/11/18/ipa-as-a-universal-cleaner
