Electronics Forum | Thu Nov 20 12:10:20 EST 2003 | frank
Well, let me take a shot... +/-100um = 0.1mm 5 sigma = is the number of acceptable defects (or placements outside of that accuracy (or tolerance). I believe 5 sigma is 233 defects out of 1 million, but I could be wrong on that. So basically all pl
Electronics Forum | Mon Apr 04 08:41:09 EDT 2005 | davef
It depends on the component and the land, but 0.1 inch is safe.
Electronics Forum | Fri Aug 24 09:38:17 EDT 2001 | gerits
Hi, you can use the Assembleon (Philips) ACM Micro for this. It can place Flip Chip form 0,1x0,1mm upto micro BGA, CSP's etc. etc. It even can handle Odd's and insert components. Web-site http://www.assembleon.com Please contcat me or our company o
Electronics Forum | Tue Feb 08 19:10:09 EST 2005 | DasonC
Lead free is not define as NO lead and "a maximum concentration value of 0.1% by weight in homogeneous materials for lead shall be tolerated." Check below link. So replaced your solder from the pot when exceed 0.1%. http://www.leadfree.org/files
Electronics Forum | Tue May 30 07:41:21 EDT 2006 | davef
Aspect ratio: The ratio of a via�s length or depth to its pre-plated diameter. So, in your case, either * 6=0.093/x, calculating x=0.093/6=0.016 as the smallest via hole diameter. ... OR * 6=y/0.01, calculating y=6*0.01=0.06 as the maximum board th
Electronics Forum | Fri Aug 04 14:44:23 EDT 2006 | bvdb
RoHS actually allows for up to 0.1% lead in solder. Unless you are really sloppy at cleaning your tools it would be very unlikely that you would get 0.1% lead into your lead-free process (remember leaded solder is only about 50% lead). Regards, Ber
Electronics Forum | Fri Mar 22 21:31:25 EST 2002 | ianchan
Hi Guys, Anyone have "comments/testimony" on having possible quality level achievements, for AQL=0.1, C=0 ??? Is this a realistic "1st Pass Yield" expectation? how about for OQC submission Lots from production? especially in a high-mix, low-volu
Electronics Forum | Wed Aug 25 15:54:46 EDT 2010 | blnorman
I previously did a search on "peel back force" > and there were a few results, and there were a > few hits that say EIA-481 is the standard, but > nothing on what the standard force range is. A > search on "cover tape" yeilds many hits about >
Electronics Forum | Tue May 05 09:58:51 EDT 2015 | anirudh_thabjul
hi everyone, I have done with my PCB Prototyping. I need to Prepare a Bill of Materials(BOM) for my PCB Assembly. I have one doubt regarding selection of SMD Capacitor. -My Question is For Example, I have to use 0.1uF capacitor on my PCB board.In
Electronics Forum | Tue Apr 10 14:35:52 EDT 2007 | UT
We are in middle to prototyping a lead free assembly for one of our customers. We are using lead free bare PCBs, consumables and components, except for two ICs which are leaded per the customer BOM. Will the overall assembly be defined as lead free p
