Electronics Forum: stencil (Page 266 of 541)

Printing On Aluminum

Electronics Forum | Wed Aug 20 09:23:34 EDT 2003 | caldon

Hi John- Maybe I am miss reading this but I can not see where a Screen instead of a stencil will benefit you. Is the thinking the screen is plyable enough to contour to the surface?

BGA vrs CGA....

Electronics Forum | Fri Sep 19 12:55:33 EDT 2003 | russ

We usually use a pad that is the same size as the ball. And use a stencil thickness of 7+ mils. Why the teardrop? Russ

BGA vrs CGA....

Electronics Forum | Sat Sep 20 11:24:27 EDT 2003 | Gabriele

Few questions: - wich type of C-CGA ? (CAST or CLASP column to ceramic attach) - column pitch ? - column count ? - capped (with lid) ? or capless (c4 die on top)? - PCB board zize and thickness ? - volume of solder paste ? - Clean or not Clean so

Solder splashes on gold

Electronics Forum | Mon Sep 29 23:46:51 EDT 2003 | daman

Hello everybody, We have a new product having a lot of open gold area. solder splashes during the reflow is a pain in the... Its an extremely small PCB and kapton taping is not an option. Stencil is at 10% reduction, Cleaning after every cycle. Reflo

Mylar sheets

Electronics Forum | Wed Oct 08 12:27:08 EDT 2003 | davef

K&J Marketing sells a KEPOCH stencil made of polyimide that is cut with a laser. * We have never used them. [We have no relationship nor receive benefit K&J Marketing.] * SMTnet Archives contain threads on them.

Where to start with a new reflow oven

Electronics Forum | Mon Oct 13 13:34:13 EDT 2003 | caldon

HI Andrea- to answer Q: 1) Stencils can be order through various vendors that manufacture stencils. You would need to have CAD data for the Stencil company to make them. You design engineer should have the CAD info. Also, the stencil design company c

SMT Quick Frame Adapter

Electronics Forum | Thu Oct 23 10:47:30 EDT 2003 | markhoch

Does anybody know where I can find an SMT 20 x 20 Quick Frame Stencil Adapter???? I've been hunting, and haven't had much luck. Let me know! Thanks!

Printing for 0402

Electronics Forum | Mon Oct 27 09:54:40 EST 2003 | John

We're just now beginning to see 0402's in our designs. Can anyone make recommendations on stencil/aperture designs and print parameters? I'm seeing skips on a small number of joints on these parts. Thanks in advance, John

Reflowing a PowerPak SO-8

Electronics Forum | Wed Nov 05 08:49:39 EST 2003 | Axl

You might want to try reducing your stencil aperture by 10% first off; if it still swims try using a home plate design. Also if your profile is going into liquidous to fast, this might cause the swimming as well, check your profile.

Stencil Printers

Electronics Forum | Wed Dec 03 07:32:03 EST 2003 | IG

$90K is a good budget. Check out Dek and MPM. www.dek.com www.speedlinetechnologies.com/about/about_mpm.html


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