Electronics Forum | Thu May 27 13:49:01 EDT 1999 | Greg Curler
One of our board fab houses is asking (again) to eliminate the reference designators and polarity markings from boards. This isn't feasible for thru-hole, but what is the industry trend on surface mount assemblies?
Electronics Forum | Thu May 27 14:35:32 EDT 1999 | John Thorup
| One of our board fab houses is asking (again) to eliminate the reference designators and polarity markings from boards. This isn't feasible for thru-hole, but what is the industry trend on surface mount assemblies? | Who is working for who? I w
Electronics Forum | Wed Aug 05 09:41:50 EDT 2015 | kmots15
For upside down and rotated parts try using the index mark (F6) in the package database for that component, at least then the machine should look for a unique feature on the bottom and if it cannot find it the part will be rejected. For the index ma
Electronics Forum | Thu May 27 14:44:05 EDT 1999 | Deon Nungaray
| One of our board fab houses is asking (again) to eliminate the reference designators and polarity markings from boards. This isn't feasible for thru-hole, but what is the industry trend on surface mount assemblies? | Deon Response: Hi Greg, Fr
Electronics Forum | Fri Nov 16 18:07:54 EST 2007 | wayne123
The way that the last two companies that I have worked for do is, as soon as the I.C is programmed it is marked with a either a gray or Yellow sharpie (just a small dot) in addition we always tried to make sure that this dot was at the end of I.C whe
Electronics Forum | Tue May 28 21:00:59 EDT 2002 | davef
That is the rub here, isn�t it? For those posting, it�s easier [but much slower] to start a new thread than to search the archives. [And posters could view their issue so unique and novel that it could never have been discussed several years earlie
Electronics Forum | Tue Aug 20 08:51:58 EDT 2013 | proceng1
I don't know about a poster, but we just print the Data Sheet for parts with questionable polarity markings. Just remember, that not all SMT LEDs are marked by Cathode. We have ONE LED that we use that the manufacturer puts a dot on the anode side.
Electronics Forum | Tue May 28 08:31:49 EDT 2002 | Hussman69
Hello, I know I will probably get a dozen "check the archives" answers, but what the heck. What is YOUR typical polarity mark for SMT devices? Do you use silk screen or cut a corner off a pad? Let me know and thanks.
Electronics Forum | Wed Aug 21 08:17:19 EDT 2013 | TB
We are just looking for something to get trainees familiar with the different polarity marking so they know what to look for.
Electronics Forum | Wed Jul 24 16:12:39 EDT 2013 | tbouslog
I am looking for a poster (or anything) that shows Polarity Markings for different SMT Components. I would like something for SMT Operators and SMT Setup to be able to look at when training or when they are questioning the polarity of a part. If anyb
