Electronics Forum: pcb inspection procedure (Page 1 of 63)

Flux residue cleaning procedure

Electronics Forum | Tue Oct 31 01:32:47 EST 2006 | hanocete

thanks for your reply, actually we bake the PCB assembly prior the rework because the package was exposed for quite some time already. The baking time was 24hrs @ 125 deg.C. We notice that there were flux residues on the connectors after the baking.

inspection system

Electronics Forum | Tue Apr 15 08:38:23 EDT 2003 | pjc

Don't have any specific links to papers and articles. Try searching on the IPC.org (plus APEX show http://www.goapex.org) and SMTA.org web sites. Any papers and articles on the process from equipment mfg.'s should be taken with a grain of salt. Sold

Multilayer PCB X-ray inspection

Electronics Forum | Thu Apr 01 15:19:54 EDT 2010 | dilogic

We've got prototype 6-layer PCB's and I suspect that mfg. swapped some internal layers. Would it be possible to use some form of x-ray inspection to verify that? Any ideas?

Blacklight for coating inspection

Electronics Forum | Fri Sep 16 11:28:20 EDT 2011 | dwanzek

I am looking for input on good blacklight to inspect silicon coating coverage on PCB's. This inspection is visual. Any advice or recommendations on lamps or bulbs?

Conformal coating inspection

Electronics Forum | Tue Nov 30 11:08:22 EST 2004 | jdumont

Hey all, we will be starting to coat our PCB's soon. I am looking for info on what type of UV light is needed to inspect the boards. We will be using Humiseal 1B73 Acrylic coating. TIA, JD

AOI inspection after reflow

Electronics Forum | Mon Apr 01 10:09:03 EDT 2013 | markhoch

It sounds as if you have your AOI set up off-line, and you're "AOIing" a sampling of the PCBs produced. If that’s the case, then the responsibility of who drives the inspection really depends on how you configure it. If it's based on the number of P

Multilayer PCB X-ray inspection

Electronics Forum | Thu Apr 08 02:04:53 EDT 2010 | dilogic

Having no real experience with x-ray inspection, this answer helped a lot. What I actually want is to check top 3 layers and it should be pretty straightforward, as the second layer from the top should be almost empty and the third one should be a gr

Multilayer PCB X-ray inspection

Electronics Forum | Mon Apr 05 17:47:21 EDT 2010 | boardhouse

Hi Deni, X-ray will not be able to see through Power and Grn planes. Your only way to find out is: 1) ask your board supplier to supply stack up used. 2) surface grind layer by layer to validate if it is correct stack up. What is making you think

BGA X-Ray inspection question

Electronics Forum | Wed Mar 14 16:30:02 EST 2001 | CAL

Reading x-rays is an art. All balls should be symmetrical in size and shape. Please provide more information on your question. Why just opens? If the Balls are not consistently the same in size or shape there is a problem. Larger balls could be from

Multilayer PCB X-ray inspection

Electronics Forum | Thu Apr 15 10:44:28 EDT 2010 | dwonch

Dumb question maybe but does the board have a layer count window? Usually each layer has it's number visible in copper somewhere on the board and the shop will leave the solder mask clear of this window. If the layers were stacked incorrectly it woul

  1 2 3 4 5 6 7 8 9 10 Next

pcb inspection procedure searches for Companies, Equipment, Machines, Suppliers & Information

Precision PCB Services, Inc
Precision PCB Services, Inc

Products, services, training, and consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep & Sole Agent in North America for Shuttle Star BGA Rework Stations.

Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider

1750 Mitchell Ave.
Oroville, CA USA

Phone: (888) 406-2830

2023 Eptac IPC Certification Training Schedule

High Speed Precision In-Line SPI System - Mirtec MS-11
Void Free Reflow Soldering

World's Best Reflow Oven Customizable for Unique Applications
Pillarhouse USA for handload Selective Soldering Needs

World Source Equipment: Used equipment sale. Hundreds of items on sale.
PCB Depanelizers

Low-cost, self-paced, online training on electronics manufacturing fundamentals