Electronics Forum | Thu Jun 16 08:31:15 EDT 2005 | jh0n!
The most part I have the most difficulty with is a 16mil QFN. We found that reducing stencil thickness to 4mil, and reducing aperatures for the IC by 20%, and setting local fiducials to the IC helped immensely. We used to get 75% or more bridged ou
Electronics Forum | Wed Aug 31 09:06:11 EDT 2005 | PWH
Agree with Siverts. We do a build that has 0.3mm pad diamter BGA (0.8mm pitch - distance from pad center to pad center) and 0.5mm dia. BGA balls. Stencil specs. are: 5 mil. thickness, square BGA pad aps. (1:1, 0.3mm square aps), laser cut. Seems
Electronics Forum | Tue Dec 21 16:47:15 EST 1999 | GERARDIN
Hello Pascal As mentioned by Wolfgang the key issue is the printing process capability. For a thick copper level 90�m we noticed that the pad reduction can be greater than 20% depending on supplier sources. Typicaly for a cad Width = 0.4 we can
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 | Fri Dec 28 17:02:04 EST 2007 | davef
We agree with Chunks
Electronics Forum | Wed Jan 02 15:32:27 EST 2008 | shrek
HA-HA-HA... Krikies. What are ya mate? A slavakian?
Electronics Forum | Wed Jan 09 19:04:48 EST 2008 | pnguyvu
5 mil thick is the max and no reduction Any question feel free give me a call @ 714-636-6211 or email me Steve@usastencils.com Regards Steve
Electronics Forum | Wed Nov 23 19:50:23 EST 2016 | gmscribe
Hi guys, I'm working on a design involving a 223-pin BGA with 0.5mm pitch (ball size 0.3mm) with a 16-bit DDR3 controller involved. Currently routing a track between two balls is resulting in a track width of 0.1mm and a spacing of 0.077mm. Now the
Electronics Forum | Mon Nov 16 20:22:52 EST 2015 | billthebuilder
I need one for testing a PnP machine. It's very hard to hunt something down just by package, so does anyone know of anything with a 0.3mm pitch? BGA preferred. Or clues where to look? Thanks!
