PATENT COVER GRAPHIC


United States Patent 3,475,235
October 28, 1969

Process For Fabricating A Semiconductor Device
Thomas P. Nowalk
Adalbert Knopp


Filed October 5, 1966
Image of US PATENT 3,475,235

Abstract of the Disclosure

This disclosure is directed to a process for forming diffused regions within a body of semiconductor regions without employing oxide masks.
Figure descriptions: cover graphic

  • Figure 1 is a side view, in section, of a wafer of semiconductor material suitable for use in accordance with the teachings of this invention.
  • Figures 2 to 5 are side views, in section, of the wafer of Figure 1 being processed in accordance with the teachings of this invention.
  • Figure 6 is a side view of a semiconductor device prepared in accordance with the teachings of this invention.

 Citations [54]:
  
2,861,018 11/1958 Fuller 3,042,565 07/1962 Lehovec 3,249,831 05/1966 New 3,261,074 07/1966 Beauzee 3,362,858 01/1968 Knopp
National Museum of American History
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