Electronics Forum | Thu Apr 14 18:28:20 EDT 2005 | darby
We use the standard supports that come with the machine. Print a 1:1 transparency of the first pass side of the pcb including mechanical outline and components. Your customer may need to supply this. Flip this over and tape it into position at th
Electronics Forum | Tue Feb 04 08:20:18 EST 2003 | roertner
This rule is very conservative depending on the epoxy you use and the subsequent handling of the board prior to reflow. You should use lead to pad contact area. Also be sure to look at part height and clearance on your flowsolder machine.
Electronics Forum | Wed Apr 13 16:57:49 EDT 2005 | bradlanger
My company is just starting to do double sided smt. What options are available for under board support for printing and placing the second side? We are using a Dek 248 printer and Samsung CP Series placement machines.
Electronics Forum | Mon Apr 18 09:52:36 EDT 2005 | pjc
FormFlex and the GridLok system will not work on a semi-automatic printer. They were designed for fully automatic machines. The print table is very shallow on the DEK 248, SMTechs and MPM SPM, UP100 and MicroFlex. DEK should have magnetic base suppor
Electronics Forum | Wed Sep 20 15:56:44 EDT 2006 | Rapid
There is a quick change dedicated tooling solution. It involves a "h-tower" and a machined vacuum (or non-vacuum) plate. There are two 8mm threaded holes on the table that are there for support tooling interface. The tower or tooling bolts to thos
Electronics Forum | Tue Sep 05 06:23:19 EDT 2006 | jonatf
Hi guys, I want to improve the set up of our printing machine(EKRA) especially on a 0.5mm thickness double sided boards.I find the support pins very time consuming.. any advice?? thanks.
Electronics Forum | Tue Sep 22 13:14:27 EDT 1998 | Chrys
| We are getting into a lot of double sided boards offlate. Our customer is loading a lot of RNETS, Diodes ( MINLS, SOT23s and other 2 leaded diodes ). We are processing it through a traditional glue process and wave soldering the SMT parts along wit
Electronics Forum | Thu Jul 15 14:55:24 EDT 1999 | JohnW
| I'm designing a board where the parts will only fit if I do one of the following: | | 1. Put BGAs on both sides | | 2. Put BGAs on top, smt TSOPs directly underneath and using blind vias to keep the real estate on the bottom side below the BGA pa
Electronics Forum | Mon Oct 29 15:58:47 EST 2001 | davef
Kitting: Buy-in material in kit form that is complete and in the proper form. Line set-up: Layout all boards to be the same width. Printer set-up: Use a dispenser, instead of a printer. Dispenser set-up: Program & debug off-line. Placement machin
Electronics Forum | Sun Oct 30 03:55:43 EST 2005 | mika
I apologize for my poor english. First: "Double sided sticky tape" is excellent for various reasons; right/left?. Second: NPI? Don't hesitate, If You feel that a certain machine in Your line cofiguration don't place certain/certain's components on th
