Electronics Forum | Tue Nov 28 12:05:04 EST 2000 | Garth Fitzner
Hello from Edmonton Dr. Abell! And hello from a currently enrolled Athabasca University student as well! My company is a small one. We have 12 people, only seven of whom are the assemblers and testers. We manufacture our own products and have our ow
Electronics Forum | Tue Nov 28 12:22:21 EST 2000 | rabell
Garth, the short term solution to your problem from our perspective is to rent the suite, train your people, and send it back. This can fit anyone's budget. We try not to have price stand in the way when the training is required. The only danger yo
Electronics Forum | Mon Nov 27 09:09:24 EST 2000 | Bob Abell
Taking any number of people off the line would be expected to slow production. That is one major advantage for more individualized approaches. Intermec in Washington faced this problem, with a need to train ESD prevention but a strong push-back fro
Electronics Forum | Thu Oct 26 17:42:29 EDT 2000 | Philip A. Reyes
Hi Mr Paul! Thanks for answering my previous questions. Hope you can still accommodate my other queries. This is about the acceptable criteria of PBGA defects after reflow soldering. 1.What is the allowable (min and max. ball misregistration / misal
Electronics Forum | Thu Oct 26 14:40:12 EDT 2000 | ptvianc
Hello: I have not seen a published formula for calculating the package weight that can be secured by molten solder. I have seen forumlas printed for tombstoning. From that aspect, we developed the following rule-of-thumb for first-order estimates:
Electronics Forum | Thu Oct 26 08:59:57 EDT 2000 | ptvianc
Performing a wetting balance test would be very difficult. The flux cored wire "configuration" is just not compatible with the methodology of the wetting balance test. If the wetting balance is a must, then you might ask the vendor for the flux for
Electronics Forum | Wed Sep 20 09:37:15 EDT 2000 | Erick Russell
Determining cost of rework is based on usage and application. Photonic soldering saves an average of 5 minutes per rework site in process time and may save a significant amount of labor. Depending on volume, and specifics on the application, the cos
Electronics Forum | Wed Sep 20 10:42:05 EDT 2000 | Erick Russell
Process control for Photonic soldering is based on the actual temperature of the component being reworked. If the desired temperature of the component for your process is 200C then that is the process temperature programmed. This is achieved by a cl
Electronics Forum | Thu Aug 24 09:41:46 EDT 2000 | Dr. Ning-Cheng Lee
The optimal profile to choose is determined by the following factors, (1) thermal mass and distribution across the board, (2) reflow temperature range needed for a particular alloy, (3) the nature of flux. When the thermal mass is small, such as cell
Electronics Forum | Wed Aug 23 14:49:27 EDT 2000 | Dr. Ning-Cheng Lee
Yes, you are right. It is so small a quantity, the actual threat on human health is really questionable. I believe this is the reason why the Pb-free issue faded away gradually several years ago in USA. Too many people didn't believe it is important
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