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Specialties & Experience of this Expert Witness

General Specialties:

Intellectual Property and Electronics

Keywords/Search Terms:

Software, Electronic Design Automation, EDA, Semiconductor, GDS, GDSII, OASIS


MSEE, Stanford; BSCS, Cal Poly San Luis Obispo

Years in Practice:


Additional Information

David Chapman is an experienced software developer who has written over 1,300,000 lines of code in C/C++ and other languages. He has written software for many areas of semiconductor electronic design automation: mask data preparation, design rule checking, circuit extraction, circuit delay characterization, logic synthesis, physical synthesis, placement, routing, Intellectual Property identification, and transistor level layout generation. He has over 20 years of consulting experience and was the chair of the Consultants' Network of Silicon Valley in 2018-2019. He has 12 U.S. patents granted. His expert witness work to date has focused on discovery/analysis of semiconductor layouts (GDS/GDSII, OASIS), especially for patent infringement. His sharp eyes plus his understanding of semiconductor processing and design tools mean that if it's there, he can find it.