Speed Up LEF Generation Times on Huge IC Designs

Speed Up LEF Generation Times on Huge IC Designs
by Daniel Payne on 06-03-2021 at 10:00 am

GDSII and LEF min

For IC designs there are many data formats used throughout the logical and physical design process, and one of those file formats is called LEF, an acronym for Library Exchange Format, created by Tangent, an early EDA company with Place and Route tools that was acquired by Cadence way back in March 1989. LEF generation times can become… Read More


Why IP Designers Don’t Like Surprises!

Why IP Designers Don’t Like Surprises!
by Daniel Nenni on 03-13-2020 at 6:00 am

IPDelta SemiWiki

If it’s your job to get a SoC design through synthesis, timing/power closure and final verification, the last thing you need are surprises in new versions of the IP blocks that are integrated into the design. If your IP supplier sends a new version, the best possible scenario is that this is only a small incremental change from… Read More


Crossfire – Your partner for IP development, what’s new?

Crossfire – Your partner for IP development, what’s new?
by Pawan Fangaria on 08-21-2014 at 4:00 pm

As the SoCs and IPs grow in sizes and complexities, the number of formats, databases, libraries of standard cells and IOs also increase. It becomes a clumsy task to check every cell in a library, its consistency among various format with respect to functionality, timing, naming, labels and so on, and its complex physical properties… Read More


Mark your Date for Semiconductor Design Vision

Mark your Date for Semiconductor Design Vision
by Pawan Fangaria on 03-13-2014 at 4:30 am

A very popular acronym is ‘WYSIWYG’ – What You See Is What You Get! This is very true and is important to visualize things to make it better in various aspects such as aesthetics, compactness, organization, structure, understandable for correction and so on; the most important, in case of semiconductor design, is being able to identify… Read More


Robust Design <- Robust Flow <- Robust Tools

Robust Design <- Robust Flow <- Robust Tools
by Pawan Fangaria on 08-10-2013 at 6:00 pm

I could have written the sequence of the title in reverse order, but no, design is the one which initiates the need of a particular flow and the flow needs support of EDA tools to satisfy that need. It’s okay if the design is small; some manual procedures and workarounds/scripts may be able to perform certain jobs. However, as the design… Read More