Electronics Forum | Sun May 28 08:21:52 EDT 2000 | Sal
Can't agree more than moving over to Homebase apertures, But ensure that the cut back angle is correct,to acute of and angle will leave you with an inadequate contact area fot the terminations on the chip components and you will start seeing insuffic
Electronics Forum | Tue May 30 21:06:57 EDT 2000 | Dave F
Thames: Welcome. Consider Rev C. It's current and has "better" descriptions. Consider a course. I believe IPC is doing a tourof A-610 and J-001 classes. Different problems have different root causes. For instance: * Cold solder: Moving the c
Electronics Forum | Fri May 26 15:48:36 EDT 2000 | John Escobar
I am a Ph. D. student in Technology Management at Stevens Institute of Technology, Hoboken NJ. My thesis idea is related to Economics for Electronic Assembly. The general idea is to create a sensitivity economic model related to the design and manufa
Electronics Forum | Fri May 26 14:03:52 EDT 2000 | GP
I have a problem on fine pitch SMT connector reflow. The board size is 18" x 12" with 8 layers FR4 material and emersion gold finishing. All the other components include 0603 on the board are reflow very well, except 20 mil pitch SMT connectors. The
Electronics Forum | Fri May 26 01:50:54 EDT 2000 | Craig
We have no experience in printing glue only in dispencing for short runs. We are finding that our gluing volumes are going up and want to look at screen printing as an option. We are placing 0805 and 1206 chips, melfs, sots and ics. What are the adva
Electronics Forum | Wed May 24 15:40:08 EDT 2000 | A M
I work with a Dek 265 horizon, and i like the machine it`s very good. In this machine i work with Proflow, in the begine i have some problems but now it`s work very nice. It�s more expencive, but the stencil it�s more durable, the machine it`s more c
Electronics Forum | Fri May 26 13:16:53 EDT 2000 | Todd
I have worked with MPM and GSP (fuji) and the DEK. I have had the least problems with the DEK. Kept having software issues with the MPM although I have heard some having good experiences. We used the GSP for the through hole but needed new vaccum
Electronics Forum | Sat May 27 09:45:52 EDT 2000 | Bob Willis
Many thanks for the name check from John Thorup PIHR can be done very simply and it can provide positive fillets on both sides of the board. I have just finished a line with SDSRS, Simultanouse Double Sided Reflow Soldering thats sodering both sides
Electronics Forum | Tue May 23 20:35:03 EDT 2000 | Dave F
Ashok: Our procedure allows connecting a resistor of less than 1 Mohm between the mat and ground, if safety codes and/or other authorities require inclusion of a series resistor (to eliminate the safety hazard of touching a high voltage circuit with
Electronics Forum | Tue May 23 09:21:48 EDT 2000 | Brett W. Philipp
I am a PCB Designer / Mech. Engineer for a telecom company that has just started. What I would like, if possible is a reference copy of the SM-782A IPC spec. or some input on a way to calculate depending on the PLCC part dimensions, land pattern crea
