Once in while you come across a feature or application that you find a new use for when you least expect it. Recently, I was working on a project with an electronic design group and we decided to start the 3D modeling of the complete assembly to start some joint analysis with the mechanical engineering [...]
I recently gave a presentation on Power Integrity analysis at PCB West. The presentation, available below, looks at the increasing challenges with power distribution systems on modern high-speed PCBs and considers: IC input impedance behavior, resonance behavior of power distribution systems (PDS), management of decoupling capacitors and EDA methodology for concurrent power integrity simulation throughout PCB design process.
In most cases, constraints are usually controlled by Electrical Engineers, and they drive the rules and requirements for critical nets from their schematic capture package. This is usually the most effective way of managing constraints, as it allows an organization to assign a point of control for maintaining the integrity and intention of a design concept. The down side of this approach is that if any design changes occur, or if critical nets do not meet routing requirements, there can be a significant increase in the potential for board defects. But there is another way – having the flexibility to utilize a Constraint Management tool to pass constraints at ANY point within the design phase, and to report and track changes made.
So you’re facing shorter design cycle times due to rapidly emerging global competition and the pressure to meet quality control standards, among many other things like drastically changing technologies that deal with faster speeds and sophisticated IC packages; introducing complexity to the simplest of design flows. Today what I’m going to talk to you about [...]