.gif)
Electronics Forum | Tue Oct 02 09:27:15 EDT 2018 | bandjwet
We are trying to narrow down a search for a benchtop AOI system for PCB rework amongst other items. Many times we will be working with a "golden" board and comparing this against reworked product. Any suggestions on which models to look into? Than
Electronics Forum | Mon Feb 04 17:53:58 EST 2019 | arbpkevin
My topaz X does the same thing. Hope someone can explain this. I have to toggle the button every single time after the first board.
Electronics Forum | Thu Nov 01 12:52:18 EDT 2018 | emeto
Thanks Rob, It looks like my customer wouldn't let me to change the material. However, this potting material still sticks to the non sticking fixture that I have. Can anyone give me a non sticking material that I can make these fixtures out of?
Electronics Forum | Tue Nov 27 08:40:24 EST 2018 | ethanscott
I don't think could suggest anything different than what Rob has suggested. It's really nice to have such information. Thanks, Rob for sharing it.
Electronics Forum | Fri Nov 16 07:55:17 EST 2018 | robl
Hi Prem, We used to place millions of Nickel battery tabs using Cobar paste. We found it particularly aggressive. Just contact your local Cobar distributor and ask them for samples of their most aggressive fluxed paste. Kind regards, Rob.
Electronics Forum | Fri Nov 16 09:04:40 EST 2018 | robl
and here.... https://smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=9389&#Message37375 Which was in the days of leaded, but the ROHS paste had the same flux formulation.
Electronics Forum | Thu Nov 29 01:37:30 EST 2018 | cannizzaro
I think silicone mask is ok, This is so that after soldering, you can use these holes to fit other components later. This peelable layer is needed, unless you want to solder each component manually--From ALLPCB
Electronics Forum | Thu Nov 29 12:42:18 EST 2018 | emeto
Robl, I like this underfilm. Do you think you should place it in the middle of the part? I am curious if they provided some advice to you as how to use it.
Electronics Forum | Thu Nov 29 13:22:39 EST 2018 | roblackey
Hi Evtimov, For BGA's you place 4 on each side right outside the edge balls and it pulls the case down and a bit is pulled between the balls on reflow. Not tried gluing a crystal (they only gave me a strip to play with)
Electronics Forum | Thu Nov 29 13:08:38 EST 2018 | lukejk95
Thank you for responding, we replaced those parts and it happens in step mode too, it happens as soon as it reaches the pcb before the cut and clinch process.
Golden State is a contract manufacturer that makes wire harnesses, electromechanical assemblies (box builds, subassemblies, PCBAs, kits, etc.) and services (sorting, rework, value additive manufacturing engineering)
18220 Butterfield Blvd
Morgan Hill, USA
Phone: 5102268155
.gif)
