PATENT COVER GRAPHIC |
United States Patent 3,472,712 October 14, 1969 Field-Effect Device With Insulated Gate Robert W. Bower Filed October 27, 1966 |
![]() |
Abstract of the DisclosureMethod of making an insulated-gate field-effect transistor wherein the gate is first formed on an insulated portion of a semiconductor body and used as a mask to form the source and drain regions by the ion implantation of conductivity-type-determining impurities on either side of the gate. |
Figure descriptions: cover graphic |
|
Citations [54]:2,563,503 08/1951 Wallace 3,311,756 03/1967 Nagata 2,735,948 02/1956 Sziklai 2,787,564 04/1957 Shockley 2,981,877 04/1961 Noyce 2,989,385 06/1961 Gianola |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |