Electronics Forum | Wed Jun 16 15:44:52 EDT 1999 | Jagman
| WOULD LIKE TO DO RELOW OF 2 SIDED SMT BOARDS. USUALLY THE BOTTOM SIDE HAS RESISTORS AND CAPS ONLY. WHEN THE BOTTOM OF THE BOARD HEATS UP, THE PARTS ARE FREE TO MOVE AND ONLY SURFACE TENSION WILL KEEP THE COMPONENT FROM FALLING OFF. | CAN BOARDS BE
Electronics Forum | Tue Jul 13 09:16:13 EDT 1999 | Dick Casagrande
| WOULD LIKE TO DO RELOW OF 2 SIDED SMT BOARDS. USUALLY THE BOTTOM SIDE HAS RESISTORS AND CAPS ONLY. WHEN THE BOTTOM OF THE BOARD HEATS UP, THE PARTS ARE FREE TO MOVE AND ONLY SURFACE TENSION WILL KEEP THE COMPONENT FROM FALLING OFF. | CAN BOARDS BE
Electronics Forum | Wed Dec 08 20:00:56 EST 2021 | scotceltic
Throughout the years in SMT PCBA production I have seen OEM's and contract houses move away from a Double-Sided PCBA Line setup. Ex Single pass for bottom-side and then straight into duplicate equipment for top-side. The norm these days seems to be
Electronics Forum | Sun Oct 03 13:32:54 EDT 2010 | schen
Hi. there's no other way to do except hand solder the top side cap or using hand print hand place method during SMT process. otherwise you will have to spend more time just to set up this process. bottom line is you have to install this one cap first
Electronics Forum | Sat May 06 23:44:24 EDT 2006 | mika
We get away with edge clearance of 5 mm on the bottom side and 3 mm on the top side. This is mainly because of our BTU-reflow ovens. The rest of our assy-line can handle 3 mm edge clearence. Assuming that a double sided pcba is running secondary sid
Electronics Forum | Thu Aug 19 15:49:05 EDT 2004 | pjc
Hi Erhard, Go to http://www.globalstencil.com They are the stencil firm that worked with MPM for developing technology for printing with thick stencils that are milled out on the bottom to account for existing components on the top side of a PC boa
Electronics Forum | Tue Apr 01 16:14:37 EDT 2014 | emeto
Hello, I have newer generation machine(MV-7) and in my software I can open two programs at the same time. After you do that there is a button in the software saying T/B. when you press this button it will run board1(or top side) and right after you
Electronics Forum | Fri Jul 24 17:28:57 EDT 2020 | rsatmech
Hello all, We have a new model running upon analysis I found one challenge while cleaning the send side boards. We have a thru hole in top where it's bottom ends are covered inside the shield. Operator find difficult to clean as it has high chanc
Electronics Forum | Wed Aug 18 10:34:35 EDT 2004 | russ
We do this every day, We print the bottom side, then the top, and have a tool that presses the connector on. We then process the board down the line. The only tricky thing is keeping fingers out of paste. Fortunately this is a single sided board.
Electronics Forum | Mon Oct 25 08:16:46 EDT 2004 | mmjm_1099
This is what I have come across with some of the gerber datas. Most CAD/Gerbers don't carry the fiducials because some of my customers don't have them as a standard but when the board house gets it they are the ones adding the fiducials. So send in a
