Electronics Forum | Wed May 20 17:56:51 EDT 2009 | dyoungquist
I have attached a pdf showing the dimensions for the QFN we placed. First, The pins on the part are not only on the bottom side but also wrap around to come up each of the 4 sides of the part as shown in the side view in the attached pdf. This i
Electronics Forum | Fri May 23 15:31:46 EDT 2003 | daanterstegge
Hi ChrisX, DPMO = number of defects per million opportunities. PPM (parts per million) is exactly the same, although the terminology is less clear about what it means. SPC(statistical process control) is a methodology based on statistical technique
Electronics Forum | Thu Mar 11 11:49:22 EST 2004 | caldon
www.ox3.com has a great web site. 1) they have a pdf that you can use for $ or 2) they have an online glossary with parts and cost available. Cal
Electronics Forum | Mon Mar 22 13:07:25 EST 2004 | Richard Y
Try these guys out: http://www.cornetttapingproducts.com/ Tell the owner Chuck I reffered you. He's a great guy and is very reasonable. He even gives me hours in turn times AND that's making the tape and T&R the parts!
Electronics Forum | Wed Nov 24 16:08:09 EST 2004 | Terrapin Station
This depends on the model. Most machines and turret style typically overstroke .2mm with a force of 250 - 300 grams of force. the reason for the over stroke is to place the component into the paste. This can be adjusted through part library manipul
Electronics Forum | Wed Feb 09 18:22:20 EST 2005 | mrduckmann2000
Valerie, Thank you for your reply. I have a quick question......when you converted to a double reflow process did you have any thru-hole parts on the assembly. If so how did you handle them....pin and paste? Thanks, mike
Electronics Forum | Fri Jul 07 04:18:48 EDT 2006 | Rob
Hi Pavel, We tried 6 or 7 but they all had issues with one part or another of their process. The only consistantly good ones we experienced were the Japanese manufacturers Nitto & Fujikura - these were more expensive than the other options, but pro
Electronics Forum | Fri May 21 17:36:39 EDT 2010 | m79d
Hi Fujispares thanks for the info but still not going. Tried other ic parts and the result is the same. Also tried another vision board. Any more suggestions? Thanks
Electronics Forum | Tue Sep 29 10:53:42 EDT 2015 | marlyn
Hey there fellow people with SMT issues... What's the proper procedure for soldering through-hole headers on the back-side of the PCB (pins poking out on same side as SMT parts)? ( Yes - I did the SMT side first and am now faced with LOTS of pin-poin
Electronics Forum | Wed May 31 22:17:24 EDT 2006 | EC
Hi Jack, I do not know what type of machine you are using and how old is your machine. But I have this problem before using Fuji machine. There are few things cause part throw.....placment speed, feeder, pick up tolerance, part dimension tolerance,
