PCB interview Question

[ddinesh894]

CAn anyone please answer to the following interview Questions:

1. What is DFM and DFT?
2.Highspeed design methodologies?
3.Placement of connectors, ETHERNET & DDR?
4.any angle , 90 degree ,45 and 135 degree routing?
5.Length matching( Skew , serpentine routing) difference?
6. Routing statergy?
7.Wat are the components will produce EMI
8.IPC standards using in present?
9.Placement of Crystal?


Plesae any one can answer and let me know if you have any question ask in interview for 3 yrs pcb design engg. and share your question.

thanks,
Dinesh

 

[kabaleevisu]

HI DINESH,
DFM-Design for manufacturing and DFT-Design for testing
DFM-for manufacturing of pcb need some standard as well as testing

 

[praveenlb]

It will take long time to explain all the point you mentioned below. better go with some good documents. you can Google it. it will not come in one day, piratical experiment make you how its exactly . Understand the stack up concept of PCB .return path .and all basic things.

 

[dehati]

For these questions

2.Highspeed design methodologies?
3.Placement of connectors, ETHERNET & DDR?
4.any angle , 90 degree ,45 and 135 degree routing?
5.Length matching( Skew , serpentine routing) difference?
7.Wat are the components will produce EMI

Try reading this book online

http://referencedesigner.com/books/si/Signal-Integrity-for-PCB-Designers-by-Vikas-Shukla-Preface.php

 

[marce]

https://www.edaboard.com/threads/280880/
text file attached to #5