Electronics Forum | Mon Dec 31 08:11:23 EST 2001 | hany_khoga
Dear all : We are suffering a severe curvature in our boards when coming out of the wave solder m/c. An Engineer suggested to enter them again for a second pass in the m/c expecting board were thermally mistreated just after the W.S. Can this real
Electronics Forum | Thu Dec 09 21:56:30 EST 2021 | dwl
my two cents is double sided lines aren't worth the trouble if you are low volume/high mix. As others have said, balancing this is a nightmare. There are tradeoffs, of course. You will build up WIP, and this is especially problematic if there are MSD
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
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
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!
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)
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
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
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
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
