Electronics Forum: stencil design (Page 1 of 112)

stencil design software

Electronics Forum | Fri May 17 11:10:25 EDT 2002 | wister

Is there any software to design the stencil openings? It may be including automatic modify the aperture,monitoring aspect ratio and area ratio,even let you know the whole vloume of the opening and average ratio?because the stencil design is more impo

CCGA stencil design

Electronics Forum | Fri Mar 17 03:41:33 EST 2000 | JackT

Hi folks, Is anybody have an experience in stencil design for CCGA ? Currently, I'm running with 5 mils thickness stencil and I encountered that there were defect on contact after reflow soldering process. Appreciate your help ! thx..Jack

uBGA stencil design

Electronics Forum | Wed Feb 22 08:02:56 EST 2006 | dj44

I was looking for an stencil design for a 0.5mm pitch uBGA. Pad size is 0.38mm in diameter. We have been using 5mil stencil with type 3 no clean paste. What size aperture should we be using? Any suggestions?

stencil design software

Electronics Forum | Wed Feb 05 08:20:14 EST 2003 | mbroadway

I'm new to the smt game. I'm trying to learn the basics of stencil design. I've just been tasked with removing and replacing a couple of mictor connectors. I need to find/design stencils for the solder paste. These boards are proprietary, and we don'

Nordic aQFN73 stencil design

Electronics Forum | Tue Apr 17 08:57:05 EDT 2018 | dleeper

Thanks for the update! I guess whoever designed the package knew what they were doing.

No Clean stencil design

Electronics Forum | Mon May 15 15:42:29 EDT 2000 | Doug Smith

Can anyone tell me a recomended stencil apt. design for PBGA's and Ceramic BGA's when using a no clean (UP78) paste?

stencil design software

Electronics Forum | Wed May 22 12:16:14 EDT 2002 | wister

Yes,stencil supplier can give me some suggestion.but all need to be verified again and again.if there is such software can tell us everything about the stencil design? verify if before it be made.I do think it will save time to launch NPI and save ti

Nordic aQFN73 stencil design

Electronics Forum | Wed Apr 11 09:04:06 EDT 2018 | emeto

Try one aperture 60x60mil

Nordic aQFN73 stencil design

Electronics Forum | Tue Apr 17 16:34:25 EDT 2018 | slthomas

I attributed it to luck, but whatever keeps you up and running!

Nordic aQFN73 stencil design

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.

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