Electronics Forum: alpha and 600smd (Page 2 of 4)

Re: MoonMan and Tetras

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

Quick Frame and Dek 265GS

Electronics Forum | Wed May 20 07:13:15 EDT 1998 | smd

Does anyone use the "Quick Frame" with their Dek printer? The threads on the screws keep stripping, so we thought maybe we'd send our frames to a machine shop for heftier screws. Has anyone done this? Is there a better way? Isn't it weird how Alpha k

Re: solder balls and flux

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

Re: solder balls and flux

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

Wave Cassettes and Heat convection

Electronics Forum | Mon Jan 15 09:19:29 EST 2007 | tk380514

We use Alpha EF-2202 low-VOC No-Clean flux Selective wave soldering cassettes Bottom pre-heating wave soldering machine We have one component that will not solder properly: http://www.epcos.com/web/generator/Web/Sections/ProductCatalog/Capacitors/Ul

UPDATE: Quick Frame and Dek 265GS

Electronics Forum | Thu Jun 11 07:28:12 EDT 1998 | smd

Before risking screwing up the alignment of the frame, and upon the advice of several SMTNET users, I decided to see if I could get away W. just changing the screws. I found screws with 2x the pull strength as Alpha's. But they didn't fit!! The Alph

Mixing No-clean and water soluble processes

Electronics Forum | Wed Feb 24 11:28:09 EST 2010 | vleasher

I apologize for being so vague. It is a standard leaded process using ALPHA OM-5100 for the SMT. So would a reduction in wash temp result in less white residue?

Re: Quick Frame and Dek 265GS

Electronics Forum | Wed May 20 19:35:59 EDT 1998 | Rin Or

| Does anyone use the "Quick Frame" with their Dek printer? | The threads on the screws keep stripping, so we thought | maybe we'd send our frames to a machine shop for heftier | screws. Has anyone done this? Is there a better way? | Isn't it weird h

Re: Quick Frame and Dek 265GS

Electronics Forum | Thu May 28 21:35:12 EDT 1998 | Soeurn Ses Top Line

| | | Does anyone use the "Quick Frame" with their Dek printer? | | The threads on the screws keep stripping, so we thought | | maybe we'd send our frames to a machine shop for heftier | | screws. Has anyone done this? Is there a better way? | | Isn

Quad ZCR 941 and Lead Free?

Electronics Forum | Mon Jun 20 10:59:18 EDT 2005 | Jason Fullerton

Extra cooling is better (Alpha recommends -3 to -7 degC/sec) for cosmetics. Less chance of s o called 'cooling lines' that look similar to 'cold' tin-lead joints. (Seems a bit steep to me - I worry about the risk of cracking ceramic caps.) Might be


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