Electronics Forum | Thu Aug 31 12:17:56 EDT 2000 | mike weekes
We are considering alternative Board Finishes to our existing HASL process. The HASL effects opens on 25 and 20 mil packages after reflow and we know if the advantages of CuOSP and other alternatives. OUR Concern: Is there a shelf life and handlin
Electronics Forum | Mon Aug 28 15:34:19 EDT 2000 | Steve Harshbarger
Hello Ramon, This is a very common problem that usually can be overcome. Can you tell me the flux type you are using (manufacturer, and flux number)? Has your board vendor, or type of PCB's changed (are they entec coated - bare copper)? What is t
Electronics Forum | Mon Aug 28 14:12:51 EDT 2000 | Earl Moon
1/4 thimble! Obviously, you read none of may articles. HASL has more than a simple topographical problem, and so on. You also would know that TCE, while being an important issue, can be overcome as a problem with optimized pad designs. You would kno
Electronics Forum | Fri Aug 18 09:19:01 EDT 2000 | PR
We have been using the Pro Flo for about a year and the print quality alone is worth making the move. It is flexible in that switching over to blades is pretty simple (if you need to), and the operators love it because clean up is a breeze. The only
Electronics Forum | Thu Jul 06 07:30:46 EDT 2000 | John
Ralph, Typically our co-op students put down solder paste with a syringe, place the parts on the paste with tweezers, and then reflow the paste with a hot air pencil. This works pretty well when they are hand building prototypes. You can probably
Electronics Forum | Wed Jul 05 17:06:36 EDT 2000 | Michael Parker
Patrick- You have not given enought detail of the type of discoloration. Is it "white residue"? Can it be "rust" colored? Whatever it is, you fab supplier needs to be called in immediately and give you an exact reason for this failure. Just rubbing
Electronics Forum | Thu Jun 15 14:20:21 EDT 2000 | Kevin Simpson
Hi Peter, The Disk you are refering to can be outsourced from several different vendors. The thing to be careful with is getting a consistant colored disk. You don't want to have etc... some dull/bright..etc. We have found one local vendor we use.
Electronics Forum | Thu Jun 08 21:14:31 EDT 2000 | Thomas Ravener
You asked about info on a line. The only responses have been on a single machine. What type processes are involved? Are you doing a mixed technology application? UIC has probably one of the best technology application labs in the business. But all of
Electronics Forum | Thu May 18 08:32:02 EDT 2000 | Nancy V
Janet, I like Dave's advice. I would send you first to www.smtmag.com They have articles there that give the basics of SMT. Look for the button that says "Step-By-Step SMT." It will give you a touch of what your in for. Then find a good book. I
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
