Miniaturized electronic circuits [US Patent No. 3,138, 743]

A reprint of US Patent 3,138,743 (Issued June 23, 1964. Filed Feb. 6, 1959), issued to J.S. Kilby, is presented. Kilby\´s integrated circuit provided the breakthrough for microelectronics as we know it. In his patent he claimed his invention "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." Kilby received the 2000 Nobel Prize in Physics as the inventor of the integrated circuit (IC) after the death of Robert Noyce in 1990. All eight pages of the original patent, plus four pages of illustrations are included.