Abstract:
A semiconductor device is formed with a normal, non-recessed, spacer structure in a cell region and a recessed spacer structure in a peripheral region. The recessed spacer structure is formed as by etch masking those in the cell region and exposing those in the peripheral region, then performing an etch process. The increased height of the cell region spacers is adapted to further prevent over-etching during gate interconnect formation which would otherwise result in etching through the spacer to the substrate and subsequent short circuit. Therefore, it is also possible to prevent bridge defects due to over-etching, which occurs because the barrier metal layer for a subsequent interconnection contact is accidentally connected to the underlying substrate. Also, since the recessed spacer structure is provided in the peripheral region, it is possible to remarkably enhance a resistance distribution of a cobalt silicide layer occurring in a gate line width of 100 nm or less.
Abstract:
PURPOSE: A method of forming a barrier metal and a structure thereof are provided to prevent Al of an Al conductor from diffusing into a TiN film in spite of a thin thickness of the TiN film by forming previously a TiAlx film between an Al film and a Ti film. CONSTITUTION: A Ti film(205), an Al film(207), and a TiN layer(209) are sequentially formed on an insulating layer(201). At this time, a TiAlx film(211) is formed between the Ti film and the Al film by the reaction of the Ti film and the Al film. An Al conductor(213) is then formed thereon.
Abstract:
개선된 캐리어 이동도를 갖는 반도체 소자의 제조방법을 제공한다. 이 방법은 앤모스 영역 및 피모스 영역을 갖는 반도체 기판을 준비하는 것을 구비한다. 상기 앤모스 영역 및 피모스 영역에 앤모스 트랜지스터 및 피모스 트랜지스터를 각각 형성한다. 상기 앤모스 트랜지스터를 갖는 상기 앤모스 영역 상에 제1 압축 응력을 갖는 제1 절연막을 형성한다. 상기 피모스 트랜지스터를 갖는 상기 피모스 영역 상에 제2 압축 응력을 갖되, 상기 제1 절연막 보다 높은 응력 완화율을 갖는 제2 절연막을 형성한다. 상기 제1 절연막 및 상기 제2 절연막을 갖는 반도체 기판을 열처리하여 상기 제2 절연막이 상기 제1 절연막 보다 감소된 압축 응력을 갖도록 상기 제2 절연막의 압축 응력을 완화시킨다. 씨모스, 이동도, 캐리어, 압축 응력
Abstract:
본 발명은 반도체 소자를 제조하는 경우에 사용되는 베리어 메탈(Barrier Metal)의 형성방법과 그 베리어 메탈(Barrier Metal)의 구조에 관한 것이다. 베리어 메탈(Barrier Metal)을 Ti/Al/TiN으로 형성하되 기본적으로 Ti와 Al의 반응을 통해 타이타늄-알루미늄 합금(TiAl x )막을 더 개재시키는 형성방법과 그 구조에 관한 발명이다. 또한, 반응의 정도에 따라 본 발명이 제공하는 베리어 메탈(Barrier Metal)은 Ti/TiAl x /Al/TiN, Ti/TiAl x /TiN, TiAl x /TiN, TiAl x /Al/TiN으로 형성될 수 있다. 이와 같이 타이타늄-알루미늄 합금(TiAl x )막을 미리 형성시킴으로서, 비록 TiN막의 두께가 200Å이하여도, 상기 TiN막 상에 형성된 Al도선으로부터 Al의 확산을 방지할 수 있다. 그 결과, 과도한 타이타늄-알루미늄 합금(TiAl x )의 형성으로 인한 부피감소가 억제되고 이에 따라 EM(Electro-Migration) 특성 또한 개선될 수 있다. 게다가, 200Å이하로 TiN막을 형성하므로 상기 TiN막 상에 형성된 Al도선의 모폴로지(Morphology)를 개선할 수도 있다. 베리어 메탈(Barrier Metal) 형성방법, 타이타늄-알루미늄 합금
Abstract translation:形成用于制造半导体器件的阻挡金属的方法和阻挡金属的结构技术领域本发明涉及形成用于制造半导体器件的阻挡金属的方法和阻挡金属的结构。 阻挡金属由Ti / Al / TiN形成,但是由Ti-Al合金(TiAl
Abstract:
A method of fabricating an integrated circuit device comprises forming a refractory metal layer on a silicon-containing substrate, processing the refractory metal layer to form an amorphous metal silicide layer, and depositing an insulating material on the amorphous metal silicide layer. The insulating material is deposited at a temperature that maintains at least a portion of the amorphous metal silicide layer in an amorphous state, to form a capping structure that contains the amorphous metal silicide layer. The method further includes crystallizing the contained amorphous metal silicide layer, and forming an etching stop layer on the capping structure.
Abstract:
PURPOSE: A method for forming an active region having a rounded upper edge is provided to prevent a concentration phenomenon of electric field by rounding an upper edge portion of the active region. CONSTITUTION: A trench mask layer is formed on a semiconductor substrate(100). The trench mask layer is formed with a pad oxide layer, a silicon nitride layer, and a hard mask oxide layer. A trench mask pattern is formed by etching the trench mask layer. The trench mask pattern is formed with a hard mask oxide layer pattern, a silicon nitride layer pattern, and a pad oxide layer pattern. The first trench is formed by etching the semiconductor substrate(100). The second trench(150) is formed at a lower portion of the first trench by etching the semiconductor substrate(100). A recessed silicon nitride layer pattern(122) is formed by etching the silicon nitride layer pattern. A recessed pad oxide layer pattern(112) is formed by etching the pad oxide layer pattern. An edge(300) between an upper portion of an active region and a sidewall of the second trench(150) is rounded by performing an annealing process for the semiconductor substrate(100).
Abstract:
A test method of a semiconductor memory device comprises the steps of: writing data to memory cells of a memory cell block connected to a plurality of word lines; applying driving voltage having different levels to at least one selected word line among the plurality of word lines and at least two adjacent word lines adjacent to the selected word line; and reading the data of selected memory cells connected to at least one selected word line to screen the data fail.
Abstract:
The present invention relates to a multiple well bias memory device. A memory device includes a semiconductor substrate, a first wall of a first conductivity type where a memory cell is formed on the semiconductor substrate, and a second wall of a first conductivity type where a sensor amplifier of sensing and amplifying the data of the memory cell is formed in the semiconductor substrate. The doping concentration of the first wall is different from that of the second wall. The first wall is biased with a first voltage. The second wall is biased with a second voltage which is different from the first voltage. The first voltage is lower than the second voltage.