Joseph L Spector

US Patent:

50517910, Sep 24, 1991

Filed:

Mar 12, 1990

Appl. No.:

7/492525

Inventors:

Kirk W. Baldwin - Springfield NJ
Loren N. Pfeiffer - Morristown NJ
Joseph Spector - High Bridge NJ
Horst L. Stormer - Summit NJ
Kenneth W. West - Mendham NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H01L 2950

US Classification:

357 22

Abstract:

The disclosed novel solid state electronic devices comprise a two-dimensional electron gas (2DEG), emission means of ballistic 2DEG electrons, collection means of 2DEG electrons, and control means disposed between the emissions means and the collection means such that ballistic 2DEG electrons that travel from the emission means to the collections means pass through a portion of the device that underlies the control means. By means of the control means the electron density in the portion of the device can be changed, whereby the path of ballistic 2DEG electrons can be affected, in a manner analogous to refraction in optics. This "electron refraction" makes possible a variety of devices, e. g. , switches and logic elements.