Electronics Forum | Mon Apr 12 19:28:26 EDT 1999 | Tom B
Netters, When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? 1. Kester 293 no clean 2. 2.1 C/s for 30s to 150 C 3. .5 - .7 C/s for 60s to 185 C 4. 1.5 C/s u
Electronics Forum | Tue Apr 13 18:11:00 EDT 1999 | Jimmy Strain
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
Electronics Forum | Mon Apr 19 11:21:03 EDT 1999 | Travson
| Netters, | | When I reflow a PCB there is a discoloration of silkscreen and mask. It appears if Profile is too hot! But I dont think so, maybe I'm wrong? | | 1. Kester 293 no clean | 2. 2.1 C/s for 30s to 150 C | 3. .5 - .7 C/s for 60s to 185
Electronics Forum | Wed Mar 31 14:30:11 EST 1999 | Dave F
| We have carried out some experimental work, in conjunction with DEK. Instead of dispensing adhesive for SMD components onto the bottom side of on of our PCBs, we have looked at the possibility of screen printing the adhesive. Because, at the stage
Electronics Forum | Wed Jan 20 14:21:54 EST 1999 | Dave F
| I need some opinions (And I know everybody has one). | I am mounting a board into a case, after mounting the board | I am loading it with stress in the middle causing it to bend around .030 inch. The board is 4" X 6" and is Bending in the 4" dire
Electronics Forum | Tue Sep 15 19:09:36 EDT 1998 | Scott McKee
| We are a small contract assembly shop hand placing SMT. We recently received a large contract for SMD that will require placement rates of at least 6,000 CPH. I am looking at Fuji, Mydata, Quad, and Zevatech. I have little experience with automated
Electronics Forum | Tue Aug 25 12:50:24 EDT 1998 | Lance Smalley
To see if the MV will recognize the marks, in the binary mode, when setting threshold (binary level), raise up the level until the edge of the mark starts to degrade. Write down the number. Lower the level until the fiducial starts to "bloom". Wri
Electronics Forum | Tue Aug 11 18:44:22 EDT 1998 | Dave M
| Good day. We have just purchased a HOLLIS POLYCLEAN SMT Machine. We did not receive a manual and for installing the machine, we need the indications for the ventillation system: ie the number of CFM for the blower. | We would greatly appreciate i
Electronics Forum | Tue Jul 28 02:13:57 EDT 1998 | Bob Willis
There is a procedure for profiling on my web site that may be of use to start with www.bobwillis.co.uk | We are about to run our first BGA devices and would appreciate some confirmation on a few points. | First some details: | PCB & Device: | ======
Electronics Forum | Fri Jul 17 10:50:49 EDT 1998 | Rob
| Howdy, | Is anyone using Seho? Need to know more about 7000 series machines with nitrogen and ultrasonic fluxer capabilities. Any shortcomings (I can't see them)? What are the positives, beside those obvious? | Earl Moon I have a 7240n2-F. I have
