Electronics Forum | Fri Jun 07 10:55:33 EDT 2002 | Hussman69
You need an illuminance meter. We used these on the set of the Spice Girl videos. Search Yahoo for dozens of manufacturers. Use OSHA specs for setting up your factory - but aren't you in China? Not sure if they have an OSHA over there.
Electronics Forum | Fri Jun 07 12:58:43 EDT 2002 | Hussman69
In that case, one 40 watt bulb should do. Hung very high from the roof and no shine on the floor.
Electronics Forum | Wed Jun 12 01:03:17 EDT 2002 | ianchan
Hi mates, thanks for the input from everyone, that standard shared with us (courtesy from Steve Thomas), ties in with what the majority have to say. Cheers!
Electronics Forum | Wed Jun 12 01:10:43 EDT 2002 | ianchan
Aye laddie... dun forget the bagpipes and claymore sword, and dun leave home without the shepard's pie, yummy yum yum!
Electronics Forum | Wed Nov 29 01:12:12 EST 2006 | callckq
Dear Davef, Thanks for your input...The crack happen at the pad/solder ball interface..Pls review the new thread that I post just now with title called "BGA BALL CRACK AT PAD/SOLDER BALL INTERFACE" Thanks!
Electronics Forum | Wed Jan 30 02:56:22 EST 2019 | robl
I'm with Steve and flying probing. As long as you are testing the capacitance of the cap in the circuit and not of the cap itself you'll get a pretty good indication. Most are going to be 10nf and 100nf decoupling caps at that size so quite easy to
Electronics Forum | Mon Jun 17 15:04:08 EDT 2002 | genny
I think I had my units wrong in my previous post - that blueprint job was 6 years ago and fading fast. My level of 700 would have the same units as Dave's level of 1000. This is the metric measurement of lux, vs the imperial footcandles. fc to lux
Electronics Forum | Wed Jun 12 10:53:15 EDT 2002 | genny
350 candlepower is fairly low for high detail work. I spent some time in the construction industry laying out electrical blueprints for schools, and such. It was desirable to have more in the order of 700 fc for the desk surface that kids would wor
Electronics Forum | Wed Jun 12 11:11:50 EDT 2002 | davef
J-STD-001 guideline of 1000 lm/m^2 [93 fc] seems high, but it is the minimum level of illumination that operators and inspectors should have to perform their tasks. IESNA LPD Architectural Recommendations Type of Facility||General Area percent / fc
Electronics Forum | Fri Apr 01 09:40:57 EST 2005 | russ
Doug you are correct, I was talking about the integrety of the surface for mechanical measurement accuracy, not ESD properties.