Electronics Forum | Thu Dec 09 14:10:42 EST 1999 | se
Fiducial recognition is based on finding the centroid of the gray scale density of the fiducial. Round fiducials are easier for the software to digest in most cases, but its more important what the camera sees. Gray scale or color contrast of the fi
Electronics Forum | Thu Dec 02 11:28:03 EST 1999 | Mark D. Milward
Dave F. Thanks for the info. I've spoken with Ralph and Les Hymes in the past and have taken Manko seminars before. I read something not long ago that Dr. Juran had written on the subject of Zero-defect soldering programs and was hoping for response
Electronics Forum | Thu Nov 11 11:03:40 EST 1999 | Andy C.
Horace , We had a similar problem last year on an Ultra 2000 . We cured it by draining the pot , removing the wave forming ducts , pumps and nozzles and cleaning . Refill with fresh solder ( one third solder chips , two thirds solder bars - to get t
Electronics Forum | Thu Nov 11 17:17:11 EST 1999 | Boca
1. Most ionic testing is measured in NaCl, that is, the ionic residues are quantified in terms of NaCl equivalence. The test does not determine what the ionic residue is, just its relative strengh. 2. I use IPC cleanliness specs on OA fluxes but n
Electronics Forum | Mon Oct 25 17:06:18 EDT 1999 | William
Mario, If you are looking for a cheap press to do press fit connectors, then you are asking for trouble. Now, and in the long run. ASG out of West Palm Beach makes a very good press. We bought a 5 ton version and are able to press up to about 2500
Electronics Forum | Thu Oct 21 14:02:32 EDT 1999 | Ron Costa
We are a contract manufacturer currently building a job with IBM CBGA-255 devices and 20mil QFP's that are close to each other. We use a 6 mil laser cut and electro polished stencil with one to one apertures on the BGA's. The customer is experiencing
Electronics Forum | Fri Oct 08 16:48:57 EDT 1999 | Dave F
| I have a board, 4 spacers needed to be soldered on the board | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there will b
Electronics Forum | Tue Oct 12 08:48:16 EDT 1999 | Carol Zhang
| | I have a board, 4 spacers needed to be soldered on the board | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there wi
Electronics Forum | Wed Sep 15 20:24:16 EDT 1999 | Scott Cook
| Is feasible to have an electronic manufacturing company near the beach? How affect the corrosion the electronic components? | Although I agree that Earl would do a fine job setting up your facility, I do believe that it would be more efficient to
Electronics Forum | Thu Sep 16 09:21:45 EDT 1999 | Wolfgang Busko
| | Is feasible to have an electronic manufacturing company near the beach? How affect the corrosion the electronic components? | | | | Although I agree that Earl would do a fine job setting up your facility, I do believe that it would be more effi
