Electronics Forum | Wed Mar 24 23:04:00 EST 1999 | Al O Owzitgon
| We are dealing with down time accredited to the Pumps getting clogged with dried glue. We have decided to purge all spindles at 6 hour intervals. We are looking at making this process automated. Has anybody tried this and if so, is there a way to s
Electronics Forum | Tue Mar 09 09:01:28 EST 1999 | Nancy
Dave, Thanks for the information. If I ever have to do that again I will be prepared. We are looking to set up a SMT automated line in house so hopefully I won't need it. Nancy | | Clarissa, | | | | Dave had good suggestions. We load several bo
Electronics Forum | Thu Feb 18 22:49:49 EST 1999 | Chris G.
| We are using .040" diameter fiducials (global and local) on our boards. They are solder covered and HASL. I get batches of boards where the p&p vision system has trouble reading the fiducial. The fiducial looks dark on the screen. The board ven
Electronics Forum | Thu Jan 28 10:09:51 EST 1999 | Charles Stringer
| | | | Greetings, | | | | | | | | Can anyone tell me what temperatures pcb's should have when coming out of a forced convection reflow oven and out of a wavesoldering machine. | | | | Also, is there any danger of the pcb's giving off some kind of g
Electronics Forum | Sat Jan 16 09:03:28 EST 1999 | Earl Moon
| | | | For the engineers who enjoyed the last two quizs I put on my web page here are two more. One on printed board manufacture and one on rework and repair of surface mount boards. Its a bit of fun but I feel that on line training is coming and is
Electronics Forum | Sat Jan 16 13:30:20 EST 1999 | marc p
| | | | | For the engineers who enjoyed the last two quizs I put on my web page here are two more. One on printed board manufacture and one on rework and repair of surface mount boards. Its a bit of fun but I feel that on line training is coming and
Electronics Forum | Tue Dec 15 15:45:50 EST 1998 | Chrys
| Okay here is the deal. I am fairly new to the company here, but one thing I have noticed is that we read way to many fiducials, in my opinon anyway. One for example is this. One assembly was reading 17 fids. Smallest pitch was .25mil I say you
Electronics Forum | Fri Oct 30 01:07:34 EST 1998 | Earl Moon
| I am a recently graduated Process Engineer. I am working for a company developing and manufacturing printed circuit boards. I am looking for a web link, magazine article, book, etc which describes the processes which happen at a board house. More s
Electronics Forum | Wed Oct 14 05:32:24 EDT 1998 | Tony B
| | | We suffered our first blood letting because of razor sharp edge clamps (DEK 265LT) and operator giving it the finger. While positioning magnetic tooling pins, one of our best slipped and really sliced off a part of his main digit. This will imp
Electronics Forum | Tue Oct 06 15:41:14 EDT 1998 | Mike C
| | Does sombbody know what DPM rate a good and reliable SMT assembly line (incl. solder paste print, assembly and feflow soldering) has? | | DPM is Defects per million, usually measured on components. We run a process consisting of small to medium b
