Clover design lateral effect position-sensitive device

US4887140A · kind A · utility

Assignee

• The Board of Regents, Univ. of Texas System · US

Inventor

• Wanjun Wang · Baton Rouge, US

Key dates

• Filing date: Apr 27, 1989
• Grant date: Dec 12, 1989
• Expiry date: Apr 27, 2009

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/0002

Abstract

Disclosed is an improved lateral effect position-sensitive device having a clover design and including a semiconductor body including a first doped surface-oriented region of one conductivity type, a second doped surface-oriented region of opposite conductivity type, and a layer of intrinsic semiconductor material separating the first region and the second region. The first region has concave boundaries and at least four vertices. A first plurality of electrical contacts electrically contacts the vertices, and a second plurality of contacts electrically contacts intermediate portions of the concave boundaries. Conductors electrically interconnect each of the second plurality of contacts with one of the first plurality of contacts.