# Jack Kilby

Jack St. Clair Kilby (8 November 1923 - 20 June 2005) was an American electrical engineer who took part, along with Robert Noyce of Fairchild Semiconductor, in the realization of the first integrated circuit while working at Texas Instruments (TI) in 1958.$^{:22}$ He was awarded the Nobel Prize in Physics on 10 December 2000.
Kilby was also the co-inventor of the handheld calculator and the thermal printer, for which he had the patents. He also had patents for seven other inventions.

## Early life

Jack Kilby was born in 1923 in Jefferson City, Missouri, to Hubert and Vina Freitag Kilby. Both parents had Bachelor of Science degrees from the University of Illinois. His father was a manager at a local utility company. Kilby grew up and attended school in Great Bend, Kansas, graduating from the Great Bend High School. Today road signs at the entrances to the town commemorate his time there, and the Commons Area at Great Bend High School has been named The Jack Kilby Commons Area.
Kilby received his Bachelor of Science degree from the University of Illinois Urbana-Champaign, where he was an honorary member of Acacia Fraternity. In 1947, he received a degree in electrical engineering. He earned his Master of Science in electrical engineering from the University of Wisconsin-Extension in Milwaukee.

## Career

Kilby was vital to the invention of the integrated circuit. In mid-1958, as a newly employed engineer at Texas Instruments (TI), he did not yet have the right to a summer vacation. Kilby spent the summer working on the problem in circuit design that was commonly called the "tyranny of numbers", and he finally came to the conclusion that the manufacturing of circuit components en masse in a single piece of semiconductor material could provide a solution. On September 12, he presented his findings to company's management, which included Mark Shepherd. He showed them a piece of germanium with an oscilloscope attached, pressed a switch, and the oscilloscope showed a continuous sine wave, proving that his integrated circuit worked, and thus that he had solved the problem. U.S. Patent 3,138,743 for "Miniaturized Electronic Circuits", the first integrated circuit, was filed on February 6, 1959. It was notable for having different components (transistors, diodes, resistors, capacitors, etc.) on one single substrate.$^{:22}$ Along with Robert Noyce (who independently made a similar circuit a few months later), Kilby is generally credited as co-inventor of the integrated circuit.
Jack Kilby went on to pioneer military, industrial, and commercial applications of microchip technology. He headed teams that created the first military system and the first computer incorporating integrated circuits. He invented the handheld calculator (along with Jerry Merryman and James Van Tassel).
In 1970, he took a leave of absence from TI to work as an independent inventor. He explored, among other subjects, the use of silicon technology for generating electrical power from sunlight. From 1978 to 1984, he held the position of Distinguished Professor of Electrical Engineering at Texas A&M University.
In 1983, Kilby retired from Texas Instruments.

## Legacy

He died of cancer June 20, 2005, at the age of 81, in Dallas, Texas.
On December 14, 2005, Texas Instruments created the Historic TI Archives. The Jack Kilby family donated his personal manuscripts and his personal photograph collection to Southern Methodist University (SMU). The collection will be cataloged and stored at DeGolyer Library, SMU.
In 2008, the SMU School of Engineering, with the DeGolyer Library and the Library of Congress, hosted a year-long celebration of the 50th anniversary of the birth of the digital age with Kilby's Nobel Prize-winning invention of the integrated circuit. Symposia and exhibits examined the many ways in which technology and engineers shaped the modern world. Kilby held an honorary doctorate of science from SMU and was a longtime associate of SMU through the Kilby Foundation.

## Awards and honors

A statue of Jack Kilby stands in Texas Instruments Plaza on the campus of The University of Texas at Dallas.
Recognition of Kilby's outstanding achievements have been made by the Institute of Electrical and Electronics Engineers (IEEE), including the election to IEEE Fellow in 1966, the IEEE David Sarnoff Award in 1966, co-recipient of the first IEEE Cledo Brunetti Award in 1978, the IEEE Centennial Medal in 1984 and the IEEE Medal of Honor in 1986. He was co-recipient of the Franklin Institute’s Stuart Ballantine Medal in 1966. In 1982 and 1989, he received the Holley Medal from the American Society of Mechanical Engineers (ASME). He was elected to member of the National Academy of Engineering (NAE) in 1967 and received the Academy's Vladimir K. Zworykin Award in 1975. Kilby received the Golden Plate Award of the American Academy of Achievement in 1970 and was co-recipient of the first NAE's Charles Stark Draper Prize in 1989. The Kilby Award Foundation was founded in 1980 in his honor, and the IEEE Jack S. Kilby Signal Processing Medal was created in 1995. He was elected to the American Philosophical Society in 2001.
Kilby was awarded the Stibitz-Wilson Award from the American Computer & Robotics Museum in 1997.
Kilby is also the recipient of the America's most prestigious honors in science and engineering: the National Medal of Science in 1969, and the National Medal of Technology in 1990. In 1982, he was inducted into the National Inventors Hall of Fame.
In 1993, he was awarded the Kyoto Prize by the Inamori Foundation. He was awarded both the Washington Award, administered by the Western Society of Engineers and the Eta Kappa Nu Vladimir Karapetoff Award in 1999. In 2000, Kilby was awarded the Nobel Prize in Physics for his breakthrough discovery, and delivered his personal view of the industry and its history in his acceptance speech.
Kilby was awarded nine honorary doctorate degrees from universities including Southern Methodist University, the University of Miami, University of Illinois, University of Wisconsin–Madison, Texas A&M University, Yale and Rochester Institute of Technology. The National Chiao Tung University (NCTU) in Taiwan awarded Kilby with a certificate of Honorary Professorship in 1998.
The Kilby Labs, TI's research laboratory for silicon manufacturing and integrated circuit design, is named after him.
The Jack Kilby Computer Centre at the Merchiston Campus of Edinburgh Napier University in Edinburgh is also named in his honor.