Electronics Forum | Mon Jul 17 07:45:31 EDT 2000 | Alex Wong
I think you could look at the phenomena in two dimensions. Many of the sub-contractors in Asia are focus on low price-less demanding products. They hire operators to visually inspect the boards and sometime there is no inspection at all. On one ha
Electronics Forum | Thu May 25 18:58:49 EDT 2000 | Mukesh Lad
We are a tape and reel house,we use a variety of machines. If you are looking for low voulume, low cost and easy set up for you operators. I would look at Systemation MT-30, this is a good work-horse, I have used them for 10years for small runs, no
Electronics Forum | Wed Mar 21 16:32:03 EST 2001 | mparker
The root cause is dependant on the type of solder "splash", ball, whatever, that you are seeing post reflow. If it is smears, then cleaning the stencil underside is probably the answer. Are you using automatic wipers? How many print cycles between w
Electronics Forum | Tue Mar 27 18:00:35 EST 2001 | Mike Konrad
I would recommend pH neutral chemistries, particularly if a semi-automatic machine is to be used. There are many chemistries available. A partial list of chemistries that I have tested, and that are compatible with a variety of cleaning equipment i
Electronics Forum | Thu Mar 29 18:14:19 EST 2001 | kerryn
Hi Dave, I looked into the South Coast Air Quality Management District Clean Air Solvent Certification when I was having my problems with VOCs. The problem with the SCAQMD CAS Certification is that it only certifies chemicals as they are found in t
Electronics Forum | Thu Jul 26 06:39:19 EDT 2001 | nifhail
How do you guys monitor your feeder's history/record. Is there any database available in the market to keep track feeders in your line such as caliration's due date, last calibration dates etc. ( basically the historical data for individual tracking)
Electronics Forum | Fri Dec 10 12:40:44 EST 1999 | Brian W.
It sounds like the process is very labor intensive, and all the verification is done after the parts are soldered. Assuming you are hand placing the components: 1 - Contact Systems semi-automatic placement machine. It show polarity when placing, so
Electronics Forum | Wed Oct 27 17:10:14 EDT 1999 | Jerry Stafford
Guys, I am not really looking for an automatic system. I am looking for as automated a system as I can get for $30K or less. I would really prefer something under $10K. I just need a way to sample devices to see if the vendor is meeting my coplana
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 | Mon Sep 20 11:53:41 EDT 1999 | Scott S. Snider
| HI everyone, | | We are using a Siemens ap-25 screen printer, in the past we have not had any problems with adhesive placement until a couple of weeks ago. It seems the x axis has decided that it should be set somewhere between .00085 and .001
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