Samsung Electronics Co., Ltd.

Yoon-soo Chun

Tae-Young Chung

Ki-nam Kim

Dong-won Shin

Yoo-Sang Hwang

Yoo-sang Hwang

According to embodiments of the present invention, methods of manufacturing a semiconductor device, and semiconductor devices manufactured thereby, are provided. A field region is formed that defines active regions in a semiconductor substrate. Spaced apart gates are formed on the active regions in the semiconductor substrate. The gates have sidewalls that extend away from the semiconductor substrate. First spacers are formed on the sidewalls of the gates. Second spacers are formed on the first spacers and opposite to the gates. Ion impurities are implanted into the active regions in the semiconductor substrate, adjacent to the gates, using the first and second spacers as an ion implantation mask. A portion of the second spacers is removed to widen the gaps between the gates. A dielectric layer is formed on the semiconductor substrate in the gaps between the gates.

Semiconductor device having increased gaps between gates

Methods of manufacturing a semiconductor device having increased gaps between gates

A method of forming metal contacts in a semiconductor device having an active metal contact region and a bit line contact region is provided. In the method, a contact pad is formed in the active metal contact region and the bit line contact region using a conductive plug. An etch stopper is formed on the upper sides of the conductive plug. A portion of a lower interlayer dielectric layer is etched so that the etch stopper protrudes above the lower interlayer dielectric layer. A bit line stack is formed in the bit line contact region. An etch stopper is formed in the active metal contact region. An upper interlayer dielectric layer is etched to expose the surfaces of the etch stopper and bit line capping layer pattern of the bit line stack. The exposed surfaces of the etch stopper and bit line capping layer pattern are etched to form a contact hole which exposes the conductive plug and a bit line conductive layer of the bit line stack. The contact hole is filled with a conductive layer.

Method of forming metal contact in semiconductor device

A storage element of a stacked capacitor having a high dielectric film for a semiconductor device and a method of fabricating the same, the storage element having a storage node comprising a bottom polysilicon layer, a barrier metal layer, and a transition metal layer with sidewall spacers formed on the barrier metal layer. The barrier metal layer and sidewall spacers prevent the polysilicon layer from being oxidized. The polysilicon layer is formed to a thickness that determines the height of the storage node. The transition metal layer directly interfacing the high dielectric film is thinly formed to avoid slope etching thereof and thereby prevent electrical bridges or shorts between adjacent storage nodes.

Capacitor of a semiconductor device and a method of fabricating the same

Storage element for semiconductor capacitor

Growing community of inventors

Seoul, South Korea

Yoon-soo Chun