Electronics Forum: stencil (Page 270 of 540)

Where can I get Quad AVX-500 spare parts

Electronics Forum | Tue Apr 06 11:01:10 EDT 2004 | TONY

I would like to know where I can purchase spare parts for the Quad (Tyco) AVX-500 stencil printer?

Type 4 solder paste

Electronics Forum | Fri Apr 30 15:13:55 EDT 2004 | SWagner

You could comprimise on the E-Fab stencil and buy a laser cut nickle, it will have similar release characteristics to an E-Fab and only costs $600, they can be purchased from Stork Veco, they are located in Europe.

BGA rework

Electronics Forum | Thu May 06 18:48:22 EDT 2004 | Dreamsniper

SUMMIT 750. My yield is 75%-98%. And they all depend on the pad design, stencil, paste, operator, thermal profile, etc. I have 98% yield on some of our products with good pad design. Process is easy to control. Dreamy

screen printer - vision

Electronics Forum | Sun Apr 25 14:37:24 EDT 2004 | Kirk

I have a question about vision in semi automatic screen printer. How is it work? how operator adjust PCB with stencil? Kirk

screen printer - vision

Electronics Forum | Mon Apr 26 15:04:14 EDT 2004 | pjc

You are correct in understanding that the vision system comes into play for subsequent boards- to align them. Yes- if you missalign the first board and set the cameras to that board, all subsequet boards will not be aligned. Mylar is a thin polyester

BGA Rework

Electronics Forum | Wed Apr 28 12:24:15 EDT 2004 | paul_bmc

How are you applying the flux paste? Stencil or my hand, brush or dot? Are you balling the BGA's or are they already pre-balled?

Vision Software of MPM Printer

Electronics Forum | Fri May 07 17:39:15 EDT 2004 | dedwards

Sam call Harry Parriott at Value Machine Sales in Ohio, USA. He is a MPM expert that used to work for MPM. He buys, rebuilds and sells MPM stencil printers. 740-344-4260

solder balls

Electronics Forum | Thu May 06 10:28:27 EDT 2004 | Bryan She

Modify your stencil aperture shape...reduce the solder paste deposited on pad,will reduce the solder balls.Be sure your reflow profile are good before doing this.rising slope is very important. This is my opinion.thanks. Bryan

High Volume BGA re-balling

Electronics Forum | Fri May 14 14:08:04 EDT 2004 | bwet

Perhaps you can try to use the new StencilQuik(TM) technque as it more easily facilitates solder balls dropping onto the pads. Info at http://www.solder.net/stencilquik.asp

Volume of paste deposited with respect to board thickness

Electronics Forum | Tue Jun 01 07:26:55 EDT 2004 | johnwnz

Alistair, your paste deposit is controlled by a few things: Stencil thickness Squeegee pressure Squeegee speed Print gap in 99 out of 100 applications for paste printing you would have a print gap of 0 i.e. on contact printing where the PCB is in fu


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