Business & Science
Robert Dennard
Terrell-born Robert Dennard carried an SMU electrical-engineering education into IBM Research, where his one-transistor DRAM cell became a foundation of modern computer memory and his scaling work shaped semiconductor design.
- Roster rank
- #173
- Category
- Business & Science
- Subject type
- Person
- Profile source
- Published Texas Icons profile
Texas story
Life and career
Robert Heath Dennard was born in Terrell in 1932 and grew up in rural Texas before studying electrical engineering at Southern Methodist University. He earned bachelor's and master's degrees at SMU, completed a doctorate at Carnegie Institute of Technology and joined IBM Research in 1958.
At IBM, Dennard invented the one-transistor dynamic random-access memory cell, patented in 1968. DRAM dramatically increased memory density and became a standard technology across generations of computers. Dennard also helped formulate scaling principles that influenced how integrated circuits could become smaller, faster and more efficient.
Defining work
What to know
- one-transistor DRAM
- U.S. Patent 3,387,286
- Dennard scaling
- IBM Fellow
- National Medal of Technology
Timeline
Key milestones
- 1932Born in Terrell, Texas.
- 1954Earns an electrical-engineering bachelor's degree from SMU.
- 1958Completes his doctorate and joins IBM Research.
- 1968Receives the patent for the one-transistor DRAM cell.
- 2024Dies after a career recognized as foundational to modern computing.
Texas connections
Places in the story
Birthplace and early-life Texas setting.
Dallas
SMU education that prepared Dennard for his research career.
Legacy
Why the story lasts
DRAM's significance is measurable in its persistence as a fundamental form of computer memory across decades of computing hardware.
Dennard's Texas story is educational and formative: Terrell and SMU precede the IBM laboratory work that produced his most consequential inventions.
Sources
Research trail
Cross-linked profiles