Electronics Forum | Thu Nov 11 18:28:10 EST 1999 | John Thorup
Hi Jeff Actually it's not necessarily Signal to Noise Ratio or even RF circuitry. All no cleans leave behind residue by description. This residue can affect RF or other high frequency circuits in a number of different ways including SNR. Very high
Electronics Forum | Fri Apr 16 13:15:17 EDT 1999 | Justin Medernach
| Hi, | I just cheesed my previous attempt at this. I looked through IPC 600 and couldn't find anything relating to dimensional stability of a board with regard to stretch. I found bow and twist but nothing on size. I have a PCB that is .030" over
Electronics Forum | Tue Nov 17 17:10:21 EST 1998 | Earl Moon
| I am interseted in an entry level placement machine and looking for opinions and advice on manufacturers. My present line, an MPI-580 just became obsolete due to a bankruptcy situation! I need to place BGA and 20 mil fine pitch, speed is not too
Electronics Forum | Sun Nov 22 00:01:18 EST 1998 | Lance Smalley
| I am interseted in an entry level placement machine and looking for opinions and advice on manufacturers. My present line, an MPI-580 just became obsolete due to a bankruptcy situation! I need to place BGA and 20 mil fine pitch, speed is not too
Electronics Forum | Tue Dec 15 11:02:22 EST 1998 | Alden lewis
| I am interseted in an entry level placement machine and looking for opinions and advice on manufacturers. My present line, an MPI-580 just became obsolete due to a bankruptcy situation! I need to place BGA and 20 mil fine pitch, speed is not too
Electronics Forum | Tue Dec 15 11:02:26 EST 1998 | Alden lewis
| I am interseted in an entry level placement machine and looking for opinions and advice on manufacturers. My present line, an MPI-580 just became obsolete due to a bankruptcy situation! I need to place BGA and 20 mil fine pitch, speed is not too
Electronics Forum | Sat Jan 10 12:14:26 EST 1998 | eyal dickerman
I'm suprise that you are not evaloating HELLER ovens ,It is the best ,relaible oven in the market for more than 5 years. They are using the same heater/blower technology from the same manufacturer for years... HELLER offers LIFE WARRENTY for the heat
Electronics Forum | Mon Dec 09 09:31:35 EST 2002 | MA/NY DDave
Hi Just one idea, many exist. If your electrical designers can tolerate it, sometimes a cross hatched design is used under areas where electrical performance is important. It reduces coupling and impedance effects compared to a full layer. Elimina
Electronics Forum | Tue Mar 30 12:10:31 EST 2004 | caldon
SMEMA is not just conveyor height. It also is Conveyor width, Edge Clearance, Tooling pins, Maximun Machine gap, and Lead in of conveyor. Additional, SMEMA is a machine communications Protocol for machine to machine or machine to conveyor communicati
Electronics Forum | Thu Apr 08 23:08:56 EDT 2004 | Ken
Well, the precision glass is for upward looking camera's. It essentially is a "perfect part". Vapor deposition lithography on glass (for Cte stability)....basically the part pattern (or part fids) is compared to its target location (same pattern on
