editor's blog
Subscribe Now

Custom Chip Planning

Digital designers have had semi-automated design flows for a long time; custom and analog designers, not so much.

Pulsic recently announced that they’re taking some of the custom EDA technology they’ve had for ten years, combining it with new technology, and integrating it into a flow as their Pulsic Planning Solution. I got a chance to talk to them about it at DAC.

Their solution consists of four components:

  • a hierarchical floorplanner, the Unity Chip Planner;
  • a power grid planner, the Unity Power Planner, which can handle multiple domains;
  • a tool for planning bus routing and layer, the Unity Bus Planner;
  • and a tool for any signal that’s not a bus, the Unity Signal Planner.

They tie into other tools via OpenAccess. They claim to address pretty much any part of the design flow except taking RTL and turning it into GDS-II. They can feed parasitics and signal integrity info into the planning tools to refine the results. The planning process is iterative; each refinement will feed either a better estimate or an actual value to update the overall plan.

They claim that this is the only planning solution specifically targeted for the custom digital or analog space: ASIC tools can sometimes fake it, but don’t do so well with some of the aspect ratios and other idiosyncrasies of custom design.

More info in their recent release

Leave a Reply

featured blogs
Aug 11, 2025
If you're like me, all three of these videos will leave your brain buzzing with ideas, thoughts, and unanswered questions....

Libby's Lab

Libby's Lab Viewer Survey

Sponsored by Mouser Electronics

Take this quick survey to give feedback on the Libby's Lab series from Mouser Electronics and EE Journal.

Click here to take the survey!

featured chalk talk

On-board Battery Charger & DC-DC Converter
Sponsored by Infineon
In this episode of Chalk Talk, Steven Hehn from Infineon and Amelia Dalton investigate the functions of on board chargers and high voltage to low voltage DC-DC converters for electric vehicles. They also investigate the benefits that wide band gap power technologies can bring to these kinds of designs and the innovative solutions that Infineon offers for your on board charger and DC/DC design needs.
Jul 17, 2025
30,798 views