Electronics Forum: sigma and 6 (Page 1 of 27)

6 layer board and routing bga package

Electronics Forum | Fri Feb 19 05:08:40 EST 2016 | truewanderer

Thank you Tsvetan Usunov

6 layer board and routing bga package

Electronics Forum | Thu Feb 11 07:24:40 EST 2016 | truewanderer

I'm planning to design the pcb of my project. The controller used is having 136 pins and the package is P-LFBGA. So i think i need to design a 6 layer board for better performance. I haven't designed a multi layer board before. So what are things tak

6 layer board and routing bga package

Electronics Forum | Tue Feb 16 13:58:02 EST 2016 | tsvetan

this document http://www.latticesemi.com/view_document?document_id=671 may be good start point but note that how to escape from the BGA is not big deal, how to route your filtering capcitors, grounding, impedance control lof you high speed signals ar

6 layer board and routing bga package

Electronics Forum | Fri Feb 19 05:14:04 EST 2016 | truewanderer

Hi, i have a confusion to read the dimension of BGA package from the datasheet. I have attached the datasheet below. Is this diameter of the ball 0.30mm or 0.15mm. I'm confused about the values given in the box. Whats meant by M, S, A and B. Please g

Share info for Six sigma - BB

Electronics Forum | Thu Mar 01 23:02:27 EST 2001 | Cosine Theta

You can easily get 99.8% for 0603 and 99.6% for 0402 out from a Panasonic MV2F, and these machines have no adaptive pick-up. To get 99.8% from HS-50 for 0603 or 0402 should be piece of cake. Anyway, is getting 99.8% pick-up = 6 sigma process?

Share info for Six sigma - BB

Electronics Forum | Sat Mar 03 14:51:22 EST 2001 | stefwitt

Hi Dave, I think 6 sigma is here to stay. Unlike any other programs like ISO, six sigma goes to the people�s mind. With drastic examples like � you would not fly a plane which reaches its destination in a three sigma probability � you start to think

Share info for Six sigma - BB

Electronics Forum | Thu Mar 01 22:59:30 EST 2001 | Cosine Theta

I am surprise that you get 99.5% pick-up rate out from the HS-50, unless you are refering to 0201 chip size. I can easily get 99.8% for 0603 and 99.6% for 0402 out from a Panasonic MV2F, and these machines have no adaptive pick-up. To get 99.8% from

Share info for Six sigma - BB

Electronics Forum | Thu Mar 01 10:10:30 EST 2001 | Stefan Witte

Angela, besides the sense or non sense of six sigma and related meetings, you will have to break down the component feeding issue into several sections, which are all impacting the feeding reliability. 1. Component dimensions 2. Tape size 8, 12, 16

Mydata Pick and place

Electronics Forum | Tue Aug 28 14:21:39 EDT 2001 | Scott B

You have to be careful here. The figure is expressed as placement accuracy, not process quality therefore 3 sigma does not relate to 2700 PPM defects but 2700 parts per million placed outwith 15microns (0.0006" / 0.6thou). Extrapolating the distribu

and you think youve got it hard

Electronics Forum | Mon Jul 10 16:00:43 EDT 2006 | samir

QE's are the guys that sit in meetings asking the process guys --- "Uhhmmmm....my pie chart here says that we have 11 solder shorts on U1 for the week. WHAT'RE YOU GONNA DO ABOUT IT?" Unfortunately, most QE's dress nice, are tall, have gelled slic

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