Electronics Forum | Tue Feb 09 11:23:25 EST 1999 | michele sommaruga
I would like to have information about the processability of different packages. In particular I would like to known for which package I can use a double reflow for soldering. Best Regards
Electronics Forum | Tue Mar 20 14:34:45 EDT 2007 | realchunks
Hi Bill, Gasketing between the board and stencil may leak alittle, giving you a fuzzy print. If not, you should be OK. Another variable may be you need to perform an understencil wipe more often, adding to your cycle time. So why ya wanna double
Electronics Forum | Wed Mar 21 17:08:34 EDT 2007 | iit
The biggest problem with double printing is that if the squeegee pressure and speed are correct, the stencil apertures are already filled with paste. Printing again can force paste between the bottom of the stencil and the top of the board creating
Electronics Forum | Wed Mar 21 19:01:33 EDT 2007 | dekhead
If you MUST double print, probably to get good aperture fill near board edges, I would recommend letting off on pressure (maybe 20%) to minimize the bleed. Alot depends on your board (gasket) quality.
Electronics Forum | Tue Mar 20 09:11:32 EDT 2007 | scooter
Is there any down side, besides time, in printing the same board in both directions? bill
Electronics Forum | Tue Mar 20 10:27:36 EDT 2007 | davef
Print styles: Print - Most common print mode * A single print stroke forward on first board * A single print stroke reverse on next board Print-Print (Double Print) * Both forward and reverse printing strokes * Helps to ensure complete filling of th
Electronics Forum | Wed Mar 21 13:21:53 EDT 2007 | scooter
I wish you wouldn't have asked why! We had a rush job and the stencil maker used a frame (normally we don't use the frame type) and placed in the frame wrong so in order to get it to work we printed in both direction. So I thought maybe we should do
Electronics Forum | Tue Feb 09 13:07:00 EST 1999 | ETS - Brian Stumm
By double reflow are you referring to double sided reflow? Or are you referring to reflowing twice? | I would like to have information about the processability of different packages. | In particular I would like to known for which package I can use
Electronics Forum | Tue Jun 13 21:53:31 EDT 2000 | Dave F
This site is dedicated to double sided reflow and solder balls. Wasssup?
Electronics Forum | Wed Feb 10 07:50:52 EST 1999 | michele sommaruga
I am referring to reflowing twice. Fist time I reflow the up side, turn the PCB and reflow the bottom side. | By double reflow are you referring to double sided reflow? Or are you referring to reflowing twice? | | | | I would like to have informat
