Abstract: A memory element for a magnetic RAM, contained in a recess of an insulating layer, the recess including a portion with slanted sides extending down to the bottom of the recess, the memory element including a first magnetic layer portion substantially conformally covering the bottom of the recess and the recess portion with slanted sides and in contact, at the level of the bottom of the recess, with a conductive portion, a non-magnetic layer portion substantially conformally covering the first magnetic layer portion and a second magnetic layer portion covering the non-magnetic layer portion.
Abstract: A memory element for a magnetic RAM, having a first magnetic portion in a first recess of a first insulating layer; and a non-magnetic portion and a second magnetic portion in a second recess of a second insulating layer covering the first insulating layer, the second recess exposing the first magnetic portion and a portion of the first insulating layer around the first magnetic portion, the non-magnetic portion being interposed between the first and second magnetic portions.
Abstract: The present invention relates to a floating-gate MOS transistor, comprising drain and source regions implanted into a silicon substrate, a channel extending between the drain and source regions, a tunnel oxide, a floating gate, a gate oxide and a control gate extending according to a determined gate length. According to the present invention, the control gate comprises a small gate and a large gate arranged side by side and separated by an electrically insulating material. Application to the production of memory cells without access transistor, and to the implementation of an erase-program method with reduced electrical stress for the tunnel oxide.
Type:
Application
Filed:
June 17, 2005
Publication date:
December 29, 2005
Applicants:
STMicroelectronics Rousset SAS, Universite d'Aix Marseille I