Full Site - : below or test formulate (Page 2 of 3)

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

AOI SYSTEMS: MVP, TRI or CYBEROPTICS ?

Electronics Forum | Tue Oct 28 06:18:19 EDT 2008 | dominikpeli

Dear Collegs! I would appreciate all responses with opinions about the AOI manufacturers that will be listed below. First of all maybe a short description. In my company we are just starting with the optical inspection of our products. We use screen

AOI SYSTEMS: MVP, TRI or CYBEROPTICS ?

Electronics Forum | Thu Nov 13 18:29:44 EST 2008 | moabdol

Dear Collegs! > > I would appreciate all responses > with opinions about the AOI manufacturers that > will be listed below. First of all maybe a short > description. In my company we are just starting > with the optical inspection of our product

Re: When using noclean flux or clean flux process?

Electronics Forum | Wed Sep 22 02:45:23 EDT 1999 | Brian

| | Dear All, | | | | In order to understand the soldering technologies in SMT, I'd like to understand why some cards are soldered and then cleaned, or only soldered whitout water cleaning nor "ultra sound" wavelength. | | | | I mean that I wonder

Re: white residue

Electronics Forum | Fri Jan 29 05:14:06 EST 1999 | Graham Naisbitt

Hi guys, I really am at a loss to understand this one. It would appear that there may be some reaction between the flux and the resist? Or maybe you have an OSP on the board that is reacting during soldering? As a fast fix, maybe you should try a

Re: white residue

Electronics Forum | Wed Feb 10 12:52:21 EST 1999 | Dick Casagrande

|I'm getting in a little late on this but my 2 cents is: We have been using no-clean flux for a few years now but up till last month were still cleaning (the white residue) our boards (all thru hole). Finally did some investigation and found the flux

solder paste

Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef

Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c


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