David Thompson (engineer)
David A. Thompson | |
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| File:David A. Thompson, 1990.png Dave Thompson, 1990 | |
| Born | December 17, 1940 North Dakota, USA |
| Alma mater | Carnegie Institute of Technology |
| Occupation | Engineer |
| Employer | IBM |
| Awards |
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David A. Thompson is a distinguished American electrical engineer and inventor renowned for his extensive tenure at IBM and his groundbreaking work in magnetic recording technologies. His induction into the National Inventors Hall of Fame honors his creation of the thin-film inductive head alongside the magnetoresistive read head—both foundational components widely adopted in modern hard disk drives and magnetic tape systems.
Thin-film inductive head
Prior to the advent of thin-film heads, the data storage sector depended on ferrite-based recording heads. The introduction of thin-film heads marked a shift to photolithographic manufacturing techniques, which provided enhanced dimensional accuracy compared to traditional mechanical shaping methods. This technology was first implemented commercially with the release of the IBM 3370 in 1980.
Magnetoresistive read head
The influence of thin-film inductive heads expanded with the development of the magnetoresistive read head, which established the industry's inaugural dual-element recording head by integrating a thin-film inductive write element with a magnetoresistive read element. These advanced heads entered commercial use in the IBM 3480 tape system (1984) and subsequently in the IBM 9345 hard disk drive (1990).
Commercial impact
Thompson’s pioneering advances in head technology have been instrumental in driving sustained exponential growth in data storage areal density and lowering cost per Byte in both tape and hard disk drives for over five decades—a progression frequently associated with Kryder's Law.
Career details
In 1965, Thompson commenced his academic career as an assistant professor of Electrical Engineering at Carnegie Institute of Technology, specializing in microwaves and magnetic thin films.
He transitioned to industry in 1968 by joining the IBM Thomas J. Watson Research Center located in Yorktown Heights, New York, working under the leadership of Hsu Chang. Collaborating closely with Luby Romankiw, Thompson co-developed a seminal patent for a thin-film inductive head that supplanted ferrite-based technology. Their team also investigated applications of magnetoresistance for data retrieval, initially targeting bubble memory and magnetic stripe technologies—the latter achieving commercial success in portable readers. A significant milestone was reached with the creation of an effective magnetoresistive read head offering superior signal-to-noise ratios compared to inductive counterparts. These heads were first deployed in tape drives (IBM 3480, 1984) and later incorporated into hard disk drives (IBM 9345 "Sawmill," 1990). For his contributions, Thompson was honored as an IBM Fellow in 1980 and earned recognition as an IBM Master Inventor.
In 1987, he relocated to the IBM Almaden Research Center in San Jose, California, assuming the role of Director at the IBM Magnetic Recording Institute. He subsequently led the Advanced Magnetic Recording Laboratory (AMRL), established in 1991 through consolidation of several research groups.
Thompson played an active role within the IEEE Magnetics Society, serving as president from 1993 to 1994 and acting as conference chair for the inaugural Magnetic Recording Conference (TMRC) held in 1991. He was instrumental as a founding member of the Technical Advisory Board at the Magnetics Technology Centre (which evolved into the Data Storage Institute) affiliated with the National University of Singapore, and contributed to Carnegie Mellon University's Data Storage Systems Center advisory board.
His extensive portfolio includes numerous patents and scholarly articles centered on innovative thin-film write and read heads designed for magnetic recording applications. Additionally, Thompson is recognized for his forward-looking perspectives on emerging trends within magnetic data storage technologies.
Awards and recognition
Thompson has been honored with a wide array of distinguished awards for his innovations in magnetic recording technology:
- In 1980, he attained the rank of IBM Fellow, the most esteemed technical distinction awarded by IBM.
- During the 1980s, Thompson was named a Fellow of the Institute of Electrical and Electronics Engineers.
- He was inducted as a Member of the National Academy of Engineering in 1988.
- The IEEE Cledo Brunetti Award was bestowed upon him in 1992 in recognition of his groundbreaking work on miniature magnetic components, such as thin-film and magnetoresistive recording heads.
- In 1993, the New York State Patent, Trademark and Copyright Law Association presented Thompson with their Inventor of the Year Award.
- Carnegie Mellon University honored him with an Alumni Achievement (Merit) Award in 1995.
- The Silicon Valley Engineering Council Hall of Fame welcomed him in 1996, acknowledging his pioneering efforts in thin film and magnetoresistive recording head technologies that significantly advanced data storage capabilities.
- In 1998, he received the IEEE Magnetics Society Achievement Award, their premier accolade for exceptional scientific and technical contributions.
- Thompson, along with Lubomyr Romankiw, was inducted into the National Inventors Hall of Fame in 2012 for inventions critical to commercial disk storage technology, specifically citing US Patent No. 4,295,173. That year’s inductees also included prominent personalities like Steve Jobs.
- In 2017, Thompson and Christopher H. Bajorek participated in an oral history interview series conducted by the Computer History Museum.
Personal background
Raised in North Dakota, Thompson attended high school in Devils Lake. He pursued Electrical Engineering at the Carnegie Institute of Technology (now known as CMU), completing his bachelor's degree in 1962, followed by a master's in 1963, and earning a Ph.D. in 1966 under the mentorship of Leo Finzi and Hsu Chang. Thompson concluded his career at IBM with retirement in 2000.