Electronics Forum | Tue Apr 01 12:12:43 EDT 2008 | jdengler
On our machine we have found that some IC's require a different light for inspection based on the manufacturer. Have you tried other lighting options? You may need to talk to the AOI manufacturer to see if there is something the machine may be able
Electronics Forum | Wed Apr 02 09:56:59 EDT 2008 | patsama_n
Every time to create new AOI program we must manual set at bright lighting level for each component. then this case we think the parameter of AOI setting it not concern for this problem due to the golden board that we use to confirm machine before st
Electronics Forum | Wed Mar 07 20:37:38 EST 2001 | davef
I agree. The bar coded label you use should not be affected by the solder mask of the board. The label should have sharp contrast between the segments of the code to modulate the returned light and allow the reader to discriminate between light and
Electronics Forum | Wed Jan 09 10:46:17 EST 2019 | rvines1
I've recently seen some TO-220 FETs that appear to be counterfeit parts that have had the marked area resurfaced and remarked with a false part number. I don't know much about semiconductor manufacturing, and I just want to know if there is a type o
Electronics Forum | Wed Jan 09 12:13:38 EST 2019 | robl
Yep, lots of ways to do it and lots of ways to check it. Immediately blacklist the supplier who sent them in to your business. Manufacturers don't need to do this. I've heard excuses such as remarked due to automotive qualification, but normally di
Electronics Forum | Tue Oct 02 20:47:30 EDT 2001 | davef
There is no standard that describes component part marking requirements. Component fabricators take different approaches to marking. The major marking methods are: * Laser * Epoxy * No marking Maybe with this as a starting point, we can discuss yo
Electronics Forum | Thu Sep 06 10:04:54 EDT 2001 | blnorman
We have started switching all our PCB marking from labels to Laser marking. We have a silkscreen patch put on the boards then use a CO2 laser to burn the mark off to produce the barcode. Our marking downtime has gone from an average of 8 hours a we
Electronics Forum | Mon Mar 01 13:06:55 EST 2004 | Chris
Hi I have a question about fiducial mark. Can anyone explain me how it is work?. Do you have to during programming set exactly center of the mark? or approximate point the mark and the machine during placemnt will correct it. In some P&P i have met
Electronics Forum | Tue Apr 29 11:18:16 EDT 2008 | bandjwet
All: I am interested in how process engineers are both removing and adding markings to active devices. We have a job where we have to both remove the markings of and the re-mark SOICs. The markings on the devices look like they are pad or ink jet p
Electronics Forum | Wed Sep 16 10:21:14 EDT 2015 | beta
Hi all, Is there much in the way of difference between a Fuji CP6 machine with the CE mark and a machine without the CE Mark? I know why the CE Mark is required within the EU but I am talking nuts & bolts here - is the machine any different? or is
