Hynix Semiconductor Inc.

Kabushiki Kaisha Toshiba

Skhynix Inc.

Other

Choon Kun Ryu

Hiroaki Yoda

Tadashi Kai

Masahiko Nakayama

Masaru Toko

Jae Geun Oh

Hyung Suk Lee

Masatoshi Yoshikawa

Yutaka Hashimoto

Keum Bum Lee

Sook Joo Kim

Sung Jun Kim

Tae Kyung Kim

Seung Jin Yeom

Hyung Soon Park

Jong Goo Jung

Min Suk Lee

Noh Jung Kwak

According to one embodiment, a magnetoresistive element is disclosed. The magnetoresistive element includes a reference layer, a tunnel barrier layer, a storage layer. The storage layer includes a first region and a second region provided outside the first region to surround the first region, the second region including element included in the first region and another element being different from the element. The magnetoresistive element further includes a cap layer including a third region and a fourth region provided outside the third region to surround the third region, the fourth region including an element included in the third region and the another element.

Magnetoresistive element and method of manufacturing the same

According to one embodiment, a magnetic memory is disclosed. The memory includes a conductive layer containing a first metal material, a stacked body above the conductive layer, and including a first magnetization film containing a second metal material, a second magnetization film, and a tunnel barrier layer between the first magnetization film and the second magnetization film, and an insulating layer on a side face of the stacked body, and containing an oxide of the first metal material. The first magnetization film and/or the second magnetization film includes a first region positioned in a central portion, and a second region positioned in an edge portion and containing As, P, Ge, Ga, Sb, In, N, Ar, He, F, Cl, Br, I, Si, B, C, O, Zr, Tb, S, Se, or Ti.

Magnetic memory and method of manufacturing the same

A process for forming a copper wiring and the prevention of copper ion migration in a semiconductor device is disclosed herein. The process includes conducting a post-cleaning process for a copper layer that is to form the cooper wiring after already having undergone a CMP process. The post-cleaning process includes conducting a primary chemical cleaning using a citric acid-based chemical. A secondary chemical cleaning is then conducted on the copper layer having undergone the primary chemical cleaning using an ascorbic acid-based chemical. After the post-cleaning process is completed, the migration of copper ions over time is prevented thereby improving the reliability of the semiconductor device.

Method for forming copper wiring in a semiconductor device

The present invention relates to a method of forming an insulating film in a semiconductor device. After a mixed gas of alkyl silane gas and NO gas is supplied into the deposition equipment, a radio frequency power including a short pulse wave for causing incomplete reaction upon a gas phase reaction is applied to generate nano particle. The nano particle is then reacted to oxygen radical to form the insulating film including a plurality of nano voids. A low-dielectric insulating film that can be applied to the nano technology even in the existing LECVD equipment is formed.

Method of forming insulating layer in semiconductor device

The present invention relates to a method for forming an insulating layer in a semiconductor device. After a first oxide film is formed in a trench, an impurity remaining on the first oxide film in the process of etching the first oxide film using a gas containing fluorine is stripped using oxygen plasma or hydrogen plasma. Thus, it can prevent degradation of device properties due to diffusion of the impurity without additional equipment. Therefore, it can help improve reliability of a next-generation device.

Method for forming isolation layer in semiconductor device

A method for forming an isolation film of a semiconductor device is disclosed which includes forming trenches in a semiconductor substrate, forming a first HDP oxide film in the formed trenches, performing an etch-back process using a mixing gas of CFgas and Ogas to form vertical walls in the first HDP oxide films and forming a second HDP oxide film on the resulting structure. The characteristics of a device can be improved because diffusion of F ions in a FSG film formed on the first HDP oxide film is minimized.

Method for forming isolation film in semiconductor device

The present invention is provided to a semiconductor device and a method of fabricating the same. A spacer consisting of SiCxHy or SiOCxHy having a low dielectric constant is formed at the sidewall of a trench or a hole that is formed in an interlayer insulating film. It is therefore possible to reduce the dielectric constant while reducing critical dimension loss of the trench or the hole. Therefore, the present invention has advantages that it can enhance the operating speed of the device by minimizing parasitic capacitance and prohibiting RC delay and crosstalk.

Semiconductor device and method of fabricating the same

A method of forming a copper wiring in a semiconductor device. The method can prevent an increase of a dielectric constant of a low dielectric constant film and making bad deposition of a copper anti-diffusion film, due to infiltration of an organic solvent, an etch gas, etc. into the low dielectric constant film exposed at the side of a damascene pattern during a wet cleaning process for removing polymer generating when a portion of the low dielectric constant film is etched to form the damascene pattern or during a photoresist pattern strip process. In order accomplish these purpose, a CF H polymer layer is changed to a SiCH film using SiH plasma without removing the polymer layer formed at the side of the damascene pattern. Therefore, infiltration of an organic solvent or an etch gas can be prevented due to the SiCH film having a condensed film quality and a good mechanical strength. Also, the SiCH film serves as a copper anti-diffusion film and in structure, supports a porous low dielectric constant film having a weak mechanical strength.

Growing community of inventors

Seoul, South Korea

Choon Kun Ryu