Electronics Forum | Thu Jul 21 23:09:59 EDT 2016 | adamjs
flammable and hazardous to deal with Just want to point out that this is redundant, the only hazard is flammability. Acetone is about as non-toxic as it gets (as long is it isn't in your EYES) and probably *the* most safety-studied solvent in histo
Electronics Forum | Fri Aug 17 01:49:51 EDT 2018 | buckcho
Traceability can be made for many things. It is up to the factory and what it wants to implement. You can have traceability on the stencil for a several reasons: 1. Want to check stencil cycles 2. Want to verify if stencil is the correct one loaded 3
Electronics Forum | Thu Dec 12 21:44:15 EST 2019 | davef
I don't know what a "mass defect" is. Defects are within AQL [acceptable quality levels] or they aren't. I start at General Inspection Level 2 in the AQL Chart ANSI/ASQ STANDARD Z1.4-2006 and a sampling plan ANSI/ASQ Z1.4 Adjust the Level for Budge
Electronics Forum | Wed Aug 03 14:11:03 EDT 2005 | mgc
This problem is not unique to China. Second user customers are always challenged to assess machine condition, upgradeability, service history etc. More often then not, candidate machines are located halfway around the world. Further complicating thi
Electronics Forum | Fri Jan 05 15:14:27 EST 2001 | Mark Krmpotich
Currently where I work, we are busy running trials with smaller component sizes. Consumer Electronics is being driven to smaller and smaller products. Just look at the short history of the cell phone. Remeber when they used to look like Army Walki
Electronics Forum | Mon Jan 08 17:46:38 EST 2001 | Mark Krmpotich
Panasonics are good machines as long as you do the proper and timely PM's they recommend. Plus with my past history and from others that I here, their feeders are some of their biggest down fall. That's typically why they have to introduce new style
Electronics Forum | Thu Jun 22 12:40:40 EDT 2000 | Boca
Everybody's right! Two concerns are proper preheat for the flux and reduced thermal shock to surface mount components. The stupid er dumb thing is that these can be at odds with each other. The flux vendor usually specs topside temp before wave.
Electronics Forum | Wed Mar 29 04:14:49 EST 2000 | Marc
Charlie B: You mentioned that you have an air conditioned environment and a RH 0rf 50, baking the boards is predominately done when the history of the PCB delivery and / or previous storage conditions are un known. When I was with a CM, we did this a
Electronics Forum | Wed Mar 21 07:14:13 EST 2001 | bobnelms
Phil The TIME predicament you talk about is something we "consultants" deal with every day. We certainly understand the issue. Interestingly, some of us think that TRUE root cause thinking WILL NOT OCCUR until or unless it is driven from the BOTTO
Electronics Forum | Thu Jul 26 06:39:19 EDT 2001 | nifhail
How do you guys monitor your feeder's history/record. Is there any database available in the market to keep track feeders in your line such as caliration's due date, last calibration dates etc. ( basically the historical data for individual tracking)
