Taiwan Semiconductor Manufacturing Comp. Ltd.

Chung Te Lin

Katherine H Chiang

Sheng-Chih Lai

Yuh-Jier Mii

Min Cao

In some embodiments, the present disclosure relates to an integrated chip. The integrated chip includes an operative memory device. A regulating access apparatus is coupled to the operative memory device. The regulating access apparatus includes one or more regulating MTJ devices respectively having a regulating free layer, a regulating dielectric barrier layer, and a regulating pinned layer separated from the regulating free layer by the regulating dielectric barrier layer. The regulating pinned layer continuously extends between opposing outermost sidewalls of the regulating dielectric barrier layer.

Transistorless memory cell

In some embodiments, the present disclosure relates to an integrated circuit. The integrated circuit includes an operative memory device coupled to a bit-line. The operative memory device is configured to store a data state. A regulating access apparatus is coupled between the operative MTJ device and a first word-line. The regulating access apparatus includes one or more regulating MTJ devices that are configured to control a current provided to the operative memory device. The one or more regulating MTJ devices respectively include a free layer, a dielectric barrier layer on the free layer, and a pinned layer separated from the free layer by the dielectric barrier layer. The pinned layer covers a center of a surface of the dielectric barrier layer that faces the pinned layer.

In some embodiments, the present disclosure relates to an integrated circuit. The integrated circuit has an operative magnetic tunnel junction (MTJ) device configured to store a data state. The operative MTJ device is coupled to a bit-line. A regulating access apparatus is coupled between the operative MTJ device and a first word-line. The regulating access apparatus has one or more regulating MTJ devices that are configured to control a current provided to the operative MTJ device.

Growing community of inventors

Tainan, Taiwan

Chung Te Lin