Electronics Forum | Tue Mar 30 02:32:42 EST 1999 | Scott Davies
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 of
Electronics Forum | Tue Mar 09 21:22:59 EST 1999 | Dean
| When a board has loaded into the machine and the fiducials do not line up I have tried to use mark edit to set an offset into the program. I lined up the crosshairs and set the data. For some reason the machine did not accept this info. Does any
Electronics Forum | Thu Mar 04 08:50:53 EST 1999 | Dave F
| | I need to setup an oven to run with a nitrogen atmosphere for | boards with BGA's, but our ovens do not have the optional atmosphere monitor and controller. Is there a good way to sample and control the atmosphere without the optional built-in
Electronics Forum | Wed Mar 03 13:51:54 EST 1999 | Dave F
| We are a small division. We are starting up a leadless line with an old screen printer and a convection oven. At this time we don't intend to get any sort of pick and place assistance and wil be loading by hand. We find the biggest problem with
Electronics Forum | Thu Mar 04 17:32:23 EST 1999 | SMTASSY
| Mario: Interesting analysis. What does "Hand placement versus wrong component should only ave. 20-30 ppm." mean? Is that a subset of errors? Thanks. Dave F | What I mean Dave is that if you have a good (well actualy a great set-up) with all t
Electronics Forum | Mon Mar 01 22:51:56 EST 1999 | Dave F
| We have customer requested machine dispension on adhesive of solder side components, however we are currently using stencil printing for adhesive. Have anyone evaluated and compared on dispension and screen printing of adhesive before? | Thanks! |
Electronics Forum | Mon Mar 01 11:03:51 EST 1999 | Dennis Xiong
Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o
Electronics Forum | Mon Mar 01 11:03:22 EST 1999 | Dennis Xiong
Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o
Electronics Forum | Thu Feb 25 18:06:04 EST 1999 | Chris Lampron
| No salesmen please. (I didn't use my real email address) | | I would like to know if anyone is using either of these SMT machines and if they are what input can you give me on them. We are looking at the Contact 3Z and the Multitroniks DHM for o
Electronics Forum | Mon Mar 01 15:29:16 EST 1999 | Chad Haima
| A rash of new products here at my company have designs with multi-pin connectors 90 out-of-phase (orientation)wiht respect to wave direction, which has lead to massive bridging (shorts) problems.... | | Does anyone still use the 45 Degree Pallet
