Electronics Forum: paste aperture vol. density (Page 2 of 2)

Need Help for CCGA Rework

Electronics Forum | Thu Nov 10 15:43:10 EST 2005 | 1st Article

myu, Is using a 0.6mm stencil wise? 42.5 X 42.5 has two models, the 1mm pitch has 41x41 array with 1657 I/O and the 1.27mm pitch has 33x33 with 1088 I/O. For a typical c-cga with 1.0mm - 1.27mm pitch, may requires a 2mil stencil, 1.0mm pitch gets .

Re: uBGA

Electronics Forum | Tue Jul 13 15:04:24 EDT 1999 | Scott McKee

| | | | Hi all , | | | | | | | | We are trying to implement the micro-BGA technology at our plant. I need the clarification to the following points: | | | | | | | | 1. Is underfill required for micro-BGAs? | | | | | | | | 2. What type of stencil a

Stencil cleaners.

Electronics Forum | Mon Jul 17 13:37:35 EDT 2006 | carln

Here is something I copied from Circuitnet.com. This appears to answer your question and then some... http://www.circuitnet.com/experts/ Ask the Experts Jul 17, 2006 What type of cleaner method is preferred for lead-free stencils? What type of s

uBGA Square Pads or Lands

Electronics Forum | Fri Jul 16 14:05:04 EDT 1999 | Jim Blankenhorn

| | | Hi all , | | | | | | We are trying to implement the micro-BGA technology at our plant. I need the clarification to the following points: | | | | | | 1. Is underfill required for micro-BGAs? | | | | | | 2. What type of stencil apertures are t

solder dispencing vs printing

Electronics Forum | Thu Jun 21 22:04:18 EDT 2001 | davef

This is my attempt at beating the "Fuzzburg 7" translator used on the SMTnet Forum that mashes everything it sees. Below the next paragraph are three paragraphs,each with a common numering sequence, where each paragraph represents the columns of a t

Solder Paste Evaluation

Electronics Forum | Wed Jan 11 22:47:31 EST 2006 | davef

We didn't intend to light anyone's fur on fire [get anyone's underwear in a knot, roil the waters, have a cow man] about consultants. The Phil Zarrow wrote a useful paper that could help in evaluating paste. Here read it ... Evaluating Solder Paste

Re: I'm baaack!

Electronics Forum | Wed Apr 21 18:58:44 EDT 1999 | Earl Moon

| Technically speaking, there is nothing for me to say. Oh maybe just one thing - to get me back into the fray: Steve, I must say I totally disagree with your assessment of under screen cleaners. I have had nothing but excellent results using the dr

Re: I'm baaack!

Electronics Forum | Wed Apr 21 13:52:34 EDT 1999 | Steve Gregory

Technically speaking, there is nothing for me to say. Oh maybe just one thing - to get me back into the fray: Steve, I must say I totally disagree with your assessment of under screen cleaners. I have had nothing but excellent results using the dry,

Books for SMT

Electronics Forum | Tue Jan 16 20:34:17 EST 2007 | davef

DAVE�S BOOKSHELF ASSEMBLER�S ESSENTIALS Title: Soldering in ElectronicsAuthor: RJ Klein WassinkPublisher: Electrochemical PublicationsISBN: 090115024XPublication date: December 1989 I know, I know. The book was written in 1989!!!! I use this b

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