Patent Number: 6,885,023

Title: Optical device and a method of making an optical device

Abstract: An optical device such as a radiation detector or an optically activated memory includes a barrier region located between two active regions. One or more quantum dots are provided such that a change in the charging state of the quantum dot or dots affects the flow of current through the barrier region. The charging states of the quantum dot is changed by an optical device.

Inventors: Shields; Andrew James (Cambridge, GB), Patel; Nalin Kumar (Cambridge, GB)

Assignee: Kabushiki Kaisha Toshiba

International Classification: H01L 27/146 (20060101); H01L 31/0264 (20060101); H01L 31/10 (20060101); H01L 29/06 (20060101); H01L 31/0352 (20060101); H01L 31/0248 (20060101); G11C 13/04 (20060101); H01L 31/00 (20060101); H01L 29/02 (20060101); H01L 31/0304 (20060101); H01L 031/0304 ()

Expiration Date: 04/26/2022