U.S. Patent 3,138,743                                                              J.S. KilbyMiniaturized Electronic Circu...
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
Jack kilby patent_3138743
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Jack kilby patent_3138743

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Jack kilby patent_3138743

  1. 1. U.S. Patent 3,138,743 J.S. KilbyMiniaturized Electronic CircuitsApplication filed in 1959 Patent issued to Texas Instruments in 1964 Jack Kilby filed this patent for the integrated circuit nine years after John Bardeen andWalter Brattain were awarded the patent for the transistor. His patent summarizes his inventionwith clarity and simplicity: This invention relates to miniature electronic circuits, and more particularly to unique integrated electronic circuits fabricated from semiconductor material . . . Col. 1, lines 9-11. While the transistor was an important building block for miniaturized electronic circuits,it took Kilbys integrated circuit to provide the necessary breakthrough for microelectronics aswe know it: [T]he present invention has resulted from a new and totally different concept for miniaturization. Radically departing from the teachings of the art, it is proposed by the invention that miniaturization can best be obtained by use of as few materials and operations as possible. In accordance with the principles of the invention, the ultimate in circuit miniaturization is attained using only one material for all circuit elements . . . Col. 1, line 67 - Col. 2, line 6. The patent cites the ability “to achieve component densities of greater than 30 million” ina cubic foot as “evidence of the advance in the art” accomplished by the invention. Now we canstack up a hundred or so billion-transistor CPUs in a card cage that size! Thirty-five years later,the world of electronics continues to be changed by the basic principle taught by this patent,refined a thousand times over.Edwin A. Suominen, Registered Patent Agent www.eepatents.comPatent Representation for Electrical Engineering TechnologyRF • DSP • Communications • Electronics • Software

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