Electronics Forum | Tue May 07 08:18:12 EDT 2002 | Sir Alexandr
Almst quality of PCB with this pitch defined on used boards. Good board produses Fullmarks , look up to it , stencil parametrs isnt so critical but board material and layouts.
Electronics Forum | Thu May 09 17:22:56 EDT 2002 | davef
I have no opinion on the accuracy and repeatability tolerances you should be looking for on the vision system and the actual alignment of the stencil. I expect Cp=2 from my printer.
Electronics Forum | Sun May 05 08:13:14 EDT 2002 | andysi
I am curreently in my final year of my HNC Mechatronics course. In the project section I am reviewing several screen printers for their suitability to run a new product containing 0.5mm pitch components. I would be interested in anyones opinion in
Electronics Forum | Wed Dec 26 14:21:47 EST 2007 | gersla
I am looking for suggestion of BGA 0.5mm pitch Ball 0.3mm (BGA 8x8mm)assembly and soldering. Stencil thickness? Stencil reduce? Etc.
Electronics Forum | Thu Dec 27 11:05:40 EST 2007 | realchunks
5 or 6 mil thicjk stencil and no reduction.
Electronics Forum | Mon Oct 10 17:47:10 EDT 2005 | jhagve
hi We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin
Electronics Forum | Tue Oct 11 10:49:14 EDT 2005 | jhagve
HI We start to make a product which have a 0.4 mm pitch IC and start having problems with not enough solder printed, to solve this problem we had to increase the manual cleaning, now we are cleaning the stencil every 8 printings, before we was runnin
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?
Electronics Forum | Wed Aug 21 20:11:34 EDT 2002 | mitch
We are going to begin using a 64 pin 10mm QFP with 0.5mm lead pitch. I was recently asked if we need to purchase our PCB with E3 coating instead of tinned pads when using the .5 pitch. The concept being suggested is that the E3 coating will give us b
Electronics Forum | Wed Feb 22 10:00:58 EST 2006 | dougs
We've just set up a couple of products with 0.5mm pitch uBGA devices on them, i went for 5thou thick, laser cut nickel (to aid paste release) square pads same size as the diameter of the uBGA pads. Or you could go to a 4 thou nickel stencil, better
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