This blog is a place to learn about electronic systems design, from PCB design to simulation and verification, to manufacturability and manufacturing execution.

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When to remove via stubs and non-functional pads?

When to remove via stubs and non-functional pads?

For SERDES channel designs, board/system designers are told to remove stubs and non-functional pads (NFP) of vias on channels to…

Process of via design and verification

Process of via design and verification

  Designers dealing with SERDES channels pay more and more attention to signal via effects. Many literatures and guidelines talk…

PADS Tips and Tricks: Placement Report for Pick and Place

PADS Tips and Tricks: Placement Report for Pick and Place

It’s easy to output a file from PADS Layout for use during manufacturing by the pick and place machines.  Customers…

Got integrity?

Got integrity?

Well, of course you do – most engineers are pretty good people.  Actually, as much as I’d like to brag…

Impedance

Impedance

Impedance is an important concept in many different realms of engineering. We often see it in our everyday life, especially…

What to analyze?

What to analyze?

In my previous blog, I talked about how a printed circuit board is nothing more than a path for signals…

Don’t let your board heat up your ICs

Don’t let your board heat up your ICs

What?  Isn’t that backwards?  Technically, yes.  The board is merely a pathway through which ICs talk to each other, and…

Put your charts away

Put your charts away

For over 50 years, designers have been calculating current-carrying capacity on PCBs using charts created by the Navy in 1956…

Co-simulation gets you the real answer

Co-simulation gets you the real answer

Simulation is a way of predicting reality.  The more information we put into the simulation, the better our prediction of…