摘要:
According to one embodiment, a semiconductor device includes a semiconductor region, a tunnel insulating film provided on the semiconductor region, a charge storage insulating film provided on the tunnel insulating film and having a hafnium oxide including a cubic region, a block insulating film provided on the charge storage insulating film, and a control gate electrode provided on the block insulating film.
摘要:
According to one embodiment, a semiconductor device includes a semiconductor region, a tunnel insulating film provided on the semiconductor region, a charge storage insulating film provided on the tunnel insulating film and having a hafnium oxide including a cubic region, a block insulating film provided on the charge storage insulating film, and a control gate electrode provided on the block insulating film.
摘要:
According to one embodiment, a semiconductor memory element includes a semiconductor layer, a tunnel insulator provided on the semiconductor layer, a charge accumulation film provided on the tunnel insulator having a film thickness of 0.9 nm or more and 2.8 nm or less and the charge accumulation film containing cubic HfO2 particles, a block insulator provided on the charge accumulation film, and a control electrode provided on the block insulator.
摘要:
A semiconductor storage element includes: a source region and a drain region provided in a semiconductor substrate; a tunnel insulating film provided on the semiconductor substrate between the source region and the drain region; a charge storage film provided on the tunnel insulating film; a block insulating film provided on the charge storage film; a gate electrode provided on the block insulating film; and a region containing a gas molecule, the region provided in a neighborhood of an interface between the charge storage film and the block insulating film.
摘要:
A semiconductor storage element includes: a source region and a drain region provided in a semiconductor substrate; a tunnel insulating film provided on the semiconductor substrate between the source region and the drain region; a charge storage film provided on the tunnel insulating film; a block insulating film provided on the charge storage film; a gate electrode provided on the block insulating film; and a region containing a gas molecule, the region provided in a neighborhood of an interface between the charge storage film and the block insulating film.
摘要:
In a semiconductor device, the side walls are made of SiO2, SiN or SiON, and the top insulating film or gate insulating film is made of an oxide including Al, Si, and metal element M so that the number ratio Si/M is set to no less than a number ratio Si/M at a solid solubility limit of SiO2 composition in a composite oxide including metal element M and Al and set to no more than a number ratio Si/M at the condition that the dielectric constant is equal to the dielectric constant of Al2O3 and so that the number ratio Al/M is set to no less than a number ratio Al/M where the crystallization of an oxide of said metal element M is suppressed due to the Al element and set to no more than a number ratio Al/M where the crystallization of the Al2O3 is suppressed due to the metal element M.
摘要翻译:在半导体器件中,侧壁由SiO 2,SiN或SiON制成,并且顶部绝缘膜或栅极绝缘膜由包括Al,Si和金属元素M的氧化物制成,使得Si / M的数量比设定 在包含金属元素M和Al的复合氧化物中SiO 2组成的固溶度极限的Si / M的数量比不小于Si / M,在介电常数等于 Al 2 O 3的介电常数和Al / M的数量比被设定为不小于Al / M的数量比,其中所述金属元素M的氧化物的结晶由于Al元素而被抑制,并且设定为不大于 由于金属元素M而抑制了Al 2 O 3的结晶化的数值比Al / M
摘要:
According to an aspect of the present invention, there is provided a nonvolatile semiconductor memory element including: a semiconductor substrate including: a source region; a drain region; and a channel region; a lower insulating film that is formed on the channel region; a charge storage film that is formed on the lower insulating film and that stores data; an upper insulating film that is formed on the charge storage film; and a control gate that is formed on the upper insulating film, wherein the upper insulating film includes: a first insulting film; and a second insulating film that is laminated with the first insulating film, and wherein the first insulating film is formed to have a trap level density larger than that of the second insulating film.
摘要:
A semiconductor device having a field effect transistor (FET) with enhanced performance by reduction of electrical contact resistance of electrodes and resistance of the electrodes per se is disclosed. The FET includes an n-type FET having a channel region formed in a semiconductor substrate, a gate electrode insulatively overlying the channel region, and a pair of source and drain electrodes which are formed at both ends of the channel region. The source/drain electrodes are made of silicide of a first metal. An interface layer that contains a second metal is formed in the interface between the substrate and the first metal. The second metal is smaller in work function than silicide of the first metal, and the second metal silicide is less in work function than the first metal silicide. A fabrication method of the semiconductor device is also disclosed.
摘要:
There is provided a semiconductor device in which degradation of reliability originating in the interface between an upper insulating layer and an element isolation insulating layer is suppressed. The semiconductor device includes: a semiconductor region; a plurality of stacked structures each of which is disposed on the semiconductor region and has a tunnel insulating film, a charge storage layer, an upper insulating layer, and a control electrode stacked sequentially; an element isolation insulating layer disposed on side faces of the plurality of stacked structures; and a source-drain region disposed on the semiconductor region and among the plurality of stacked structures. The element isolation insulating layer includes at least one of SiO2, SiN, and SiON, the upper insulating layer is an oxide containing at least one metal M selected from the group consisting of a rare earth metal, Y, Zr, and Hf, and Si, and respective lengths Lcharge, Ltop, and Lgate of the charge storage layer, the upper insulating layer, and the control electrode in a channel length direction satisfy the relation “Lcharge
摘要:
A semiconductor memory device includes a substrate, a structure body, a semiconductor layer, and a memory film. The memory film is provided between the semiconductor layer and the plurality of electrode films. The memory film includes a charge storage film, a block film, and a tunnel film. The block film is provided between the charge storage film and the plurality of electrode films. The tunnel film is provided between the charge storage film and the semiconductor layer. The tunnel film includes a first film containing silicon oxide, a second film containing silicon oxide, and a third film provided between the first film and the second film and containing silicon oxynitride. When a composition of the silicon oxynitride contained in the third film is expressed by a ratio x of silicon oxide and a ratio (1−x) of silicon nitride, 0.5≦x