Electronics Forum: two passes (Page 4 of 22)

PLCC's on IP3

Electronics Forum | Thu Apr 22 01:47:28 EDT 1999 | Larry Johnson

Recently, we have been having problems with PLCC's passing vision on our IP's If the part is set up to be placed on Head 2, it will not always pass vision. However, if we move it over to Head 1, it will pass and place just fine. Now, I do realize

Re: PLCC's on IP3

Electronics Forum | Wed Apr 28 00:58:22 EDT 1999 | Will B. Caught

Recently, we have been having problems with PLCC's passing vision on our IP's If the part is set up to be placed on Head 2, it will not always pass vision. However, if we move it over to Head 1, it will pass and place just fine. Now, I do realiz

BGA Rework

Electronics Forum | Thu Apr 10 10:43:23 EDT 2003 | chrissieneale

Thanks for all the posts, i'm off on holiday for the next two weeks, but i know this problem will be around after i get back so hopefully i will be able to update you as to whether the board passes test or not!

Roller tinning machine

Electronics Forum | Sat Apr 04 19:17:23 EDT 2015 | sync40

Hello to everybody. Does someone have some experience or review in the past with roller tinning machines? I mean low cost machines with two rollers and a molten solder tank. The finished soldermasked PCB pass through the rollers (like a lamination)

Re: MESH SIZE

Electronics Forum | Fri Apr 23 12:26:27 EDT 1999 | Jeff Anweiler

I would like to known what�s MESH SIZE mean in the solder paste specification ? Check out the thread from 4/14/99 on solder FINES vs. solder balls. The info you're looking for is in there. "Mesh Size" is a term that is commonly use

Re: BGA repair/rework

Electronics Forum | Mon Mar 08 20:17:41 EST 1999 | Michael Larsen

I'm having a fun time between BGA rework/repair using an SRT 1000 and SPC efforts (much easier) using DEK stencil printing processes and BTU reflow with 6 Fuji lines in between. Concerning the BGA stuff, I'm getting about 60% success using

Re: PLCC's on IP3

Electronics Forum | Thu Apr 22 09:09:10 EDT 1999 | Scotty

Recently, we have been having problems with PLCC's passing vision on our IP's If the part is set up to be placed on Head 2, it will not always pass vision. However, if we move it over to Head 1, it will pass and place just fine. Now, I do realiz

DFM Guidelines

Electronics Forum | Wed Aug 12 00:01:56 EDT 1998 | Peter

I have a customer who is transitioning from 100% thru hole boards to designing boards with smt components. We gave them our basic DFM guidelines and they have laid out 2 boards following these guidelines. When I saw the result of their first pass, I

A.O.I - no salesman pitch pls

Electronics Forum | Wed Jun 11 09:58:35 EDT 2003 | swagner

Solder fillet inspection is something that I would avoid like SARS, solder joints are like a snowflake no two are the same, henceforth unrepeatability. The only time I would look into this would be for uBGA or flipchip on an audit basis utilizing X-

Re: QFP On both side of a board

Electronics Forum | Wed Dec 16 10:21:44 EST 1998 | HallJ

Has any body tried reflowing QFP's on both sides of a board. This has been done for a long time. The only thing I have seen that could start to cause problems is when you get up to the PQFP208 's that are weighing 10g or more. For this You can p


two passes searches for Companies, Equipment, Machines, Suppliers & Information