Patent ID: 6413819
Filing Date: 2002-07-02
Classification: B82Y,H01L

Abstract:
A method of making a memory device, comprising the steps of:providing a silicon layer; forming a first gate insulator over the silicon layer; depositing a plurality of pre-fabricated isolated storage elements on the first gate insulator; forming a second gate insulator over the plurality of pre-fabricated isolated storage elements; depositing a conductive layer over the second gate insulator; etching the conductive layer to form a gate electrode and define a channel region in the silicon layer under the gate electrode; etching at least a portion of the second gate insulator adjacent to the gate electrode; reacting a portion of the plurality of pre-fabricated isolated storage elements that is under said portion of the second gate insulator to form reacted storage elements; removing the reacted storage elements and the first gate insulator adjacent to the gate electrode; and forming a source and a drain in the silicon layer and adjacent to the channel region.