Electronics Forum | Tue Apr 27 09:26:43 EDT 1999 | Chrys Shea
| | | Hey MoonMan, | | | | | | Did I catch in one of your fabulous threads that you're using Tetra stencils? I'm anxious to find out how you're liking them. | | | | | | We we're all set up to go to Tetras, then mgt decided to close down our factor
Electronics Forum | Tue Apr 27 05:26:14 EDT 1999 | Charles Stringer
| | Hey MoonMan, | | | | Did I catch in one of your fabulous threads that you're using Tetra stencils? I'm anxious to find out how you're liking them. | | | | We we're all set up to go to Tetras, then mgt decided to close down our factory - Dooop!
Electronics Forum | Thu May 03 10:23:33 EDT 2001 | davef
Yes, Alpha's frames help develop upper body strength. All stencils, regardless of the type of frame, can have loose foils. Stencils with removable foils require a specialized storage system for the foils and lots of band-aids. Some foil frame su
Electronics Forum | Sat May 29 22:10:28 EDT 1999 | Earl Moon
| We are looking into frameless stencil systems for screen printing. Outside frame size of 29x29. | | Pros: smaller storage requirements and cheaper stencils. | | Cons: sharp metal edges, additional change over time required | | Can anyone relay
Electronics Forum | Tue Feb 29 21:53:46 EST 2000 | Kelvin Chow
Dear Robert, On PBGA assembly, BGA sphere shrinkage number depends to the following factors, a. BGA Sphere size (before reflow) b. Solder mask opening diameter As far as I know, no formular has been established yet. Most of my friends just collect
Electronics Forum | Tue Feb 29 21:53:46 EST 2000 | Kelvin Chow
Dear Robert, On PBGA assembly, BGA sphere shrinkage number depends to the following factors, a. BGA Sphere size (before reflow) b. Solder mask opening diameter As far as I know, no formular has been established yet. Most of my friends just collect
Electronics Forum | Thu Feb 25 04:24:15 EST 1999 | Charles Stringer
| | Has anyone used the mechanical stencil foil tensioning system from certain company that eliminates using stencil frames and epoxy & mesh? Any comments on whether it's worth looking into? We go through product revisions like we go through clean
Electronics Forum | Thu Apr 22 17:39:26 EDT 1999 | Earl Moon
| To all who will be potentially my salvation, | | I am currently researching Polyimide stencils for possible use and manufacture. If I may be indulged - with due reference to all past enquiries and notes on the subject - can anyone offer an up to d
Electronics Forum | Tue May 23 21:14:22 EDT 2006 | davef
First, where the temperatures that aare mentioned in the original post measured? Second, it sounds like the PdAg component terminations are not seeing enough heat [your soldering iron touch-up proves this]. Your 232*C peak is the absolute minimum s
Electronics Forum | Wed May 22 08:43:40 EDT 2002 | pjc
I have experience cleaning NC for military boards. The reason for cleaning the NC is due to conformal coating requirements. Zestron Vigon A200 and Atron AC 100, as well as Petroferm Hydrex DX have both been effective at cleaning Alpha UP78 NC paste.
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