Electronics Forum | Fri Jul 10 07:34:00 EDT 2020 | elijah
From the poor bonding strength of the board, the surface quality problems of the board are divided into: 1. The cleanliness of the board surface; 2. The problem of micro graphite (or surface energy) on the surface. PCB circuit board proofing Youke bo
Electronics Forum | Fri Sep 23 11:13:10 EDT 2005 | arnie
I have been using local fids, and the machine comes up with board stretch or shrink errors on some boards.
Electronics Forum | Thu Jan 03 22:39:37 EST 2002 | davef
For us, it depends on product volume: * Low volume: Tailor's scissors sharpened for the job. * Mid volume: Custom die used in a press. * High volume: We don't do this, but we'd have buy a singulation machine, er something like that. [Search the SMTne
Electronics Forum | Mon Sep 16 12:56:56 EDT 2002 | dragonslayr
simon- davef is on the right track. 1st year electronics courses teaches us that you should always check the power supply first. In this case, the power supply in question is not your power source but the regulated power within the unit. I suspect o
Electronics Forum | Wed Apr 12 21:04:10 EDT 2000 | Dave F
Ashok: You still didn�t tell me why you want additional drying of your boards, but what the hey, we all have our dark secrets. Anywho, let�s consider some options for reducing the moisture of your cleaned boards: OPTION 1 - Up-Grading Your Cleaner
Electronics Forum | Thu Jun 26 03:27:35 EDT 2003 | loz
We currently have a requirement to build flexi circuits and mount two 40 way, 20 thou connectors at each end. The flexi pcb's arrived in singlulated format. Ideally we would like to have the circuits panelised for machine building as hand placing the
Electronics Forum | Thu Jun 26 10:03:36 EDT 2003 | swagner
We have been processing a 3 and 5 up flex array for nearly four years on pallets and have had a pretty steep learning curve. Make sure you have vacuum holes in your pallet for the screen printing process, also work with your support block vendor to
Electronics Forum | Fri Aug 03 04:55:01 EDT 2007 | gregoryyork
I can help with a Misprint cleaner for 12"x18" PCB's bench model machine for around 1500 Dollars not ultrasonics please contact off line for details and I will email brochure etc. If its a conveyorised spray you are looking for then a bench mounted m
Electronics Forum | Mon Mar 12 08:06:44 EDT 2007 | davef
Q1.� is it mondatory to test all components and paths in the PCBA; and check all soldering joints? A1. Nothing is mandatory. You do ICT to prove some component functionality and check manufacturing process. ICT test coverage is driven by factors i
Electronics Forum | Wed Apr 17 22:17:58 EDT 2002 | davef
OK. I give-up: * �Nuts & Volts� Magazine, September 1997, ENCYCLOPEDIA OF ELECTRONIC CIRCUITS: THE CD-ROM OF 1,000 CIRCUITS � PART 1 - TJ Byers - In this three-part series, TJ will show you how to use this CD to go from concept to copper, and build
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