CHARGE-COUPLED DEVICES

Assignee

BRITISH AEROSPACE

Filed

Oct 3, 1974

Granted

Mar 8, 1994

Location

BROUGH GB

Abstract

A charge-coupled detector array consists of a semiconductor substrate layer and an insulating surface layer which is castellated to give two different surface levels, and each of a row of electrodes applied to the insulating layer has a first portion at the higher surface level and a second portion at the lower level. Alternate electrodes in the row are connected to one electrical lead, the intervening electrodes are connected to a second lead, and in the case of electrodes connected to one lead only all the portions at the lower surface level have regions of passivating material applied opposite to them, at the other side of the substrate. Masking metal regions are provided on the substrate opposite to the electrode portions at the higher surface level in respect of all the electrodes connected to both leads.

Source: Google Patents