Electronics Forum | Wed Jul 18 17:09:45 EDT 2018 | slthomas
Update - next run started out horribly so went to another stencil design. Reduced thermal pad coverage by about 40% with 4 panes, with cutouts to avoid the vias. Worked like a charm for 10 boards (90 parts). I think we're finally on to something.
Electronics Forum | Thu Jan 07 17:25:24 EST 2016 | hegemon
Not sure how anyone could pretend to "ballpark" a cost for a board, regardless of size, especially in small quantities. You might need 10 assemblies, but the MOQ for your main component might be 100, 200, 500, 5K pcs. Makes me laugh every time I
Electronics Forum | Mon Jun 18 08:14:20 EDT 2001 | Carl Evans
If you require several changeovers per shift the quick connect closed loop pump option would be your best bet.You can change between pump and blades within minutes. Hoever if you have several different size pumps a simple pump switch over would be pe
Electronics Forum | Fri Feb 20 15:46:44 EST 2004 | russ
Kinda what I thought, Ken, what would the parameters be relating to sphericity, flux, etc... We use type 3 63/37 usually watersoluble but for this I think I'm gonna have to use no-clean paste. When you say it can be done, what exactly does that
Electronics Forum | Fri Aug 04 13:33:15 EDT 2006 | Chunks
Hi Phil, It all depends on your product. You say small lot sizes, but are your board 20 by 20 inches in size with 5K parts both top and bottom? If so then even building 3 of these could take you days to build. Then take you weeks to trouble shoot
Electronics Forum | Tue Oct 03 09:23:55 EDT 2006 | kenscj
We are encountering BGA solder open connection. At Functional Test, the board failed. Debug guy diagnosed this BGA open connection (2 locations), by using multimeter. Under 5DX inspection, there is connection. Take the board for localised reflow at
Electronics Forum | Tue Jan 24 21:30:09 EST 2012 | jorge_quijano
It means the machine places another component, no missing PCBs are built. As an update I have measured this % in the newest machine and it is below 1%, but in our worst machine (old quad) it is as high as 9% for a small batch of 10 boards (~15 comp p
Electronics Forum | Mon Dec 22 18:20:22 EST 2014 | sreejhu
Hello, Also I wanted to tell you. I decided to go with a brand new machine. Please tell me which is the best machine for mid Volume. Samsung, heller, Dima, essemtec, acto USA, C.I.F Which company do you suggest me.. The best. My duties: We have boa
Electronics Forum | Mon Apr 27 11:20:18 EDT 2015 | anirudh_thabjul
hi everyone, I want to prototype my PCB. i have designed entire thing and also created GERBER files. Now i want to be prototyped. So, While searching online PCB manufacturing Companies, I found Many companies. But everywhere it is mentioned choose
Electronics Forum | Thu Nov 30 04:02:26 EST 2000 | Chris May
Michael, Thanks for your response. More info:- The processes are as follows, Stencil Print (6 thou on DEK 248) Placement on Contact 3AV and Reflow on BTU 4 zone Top & Bottom oven.It is not an In-Line system. Our board technology is mixed but heavi
winsouce.jpg)
