公开(公告)号：US08198159B2

公开(公告)日：2012-06-12

申请号：US12054089

申请日：2008-03-24

申请人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

发明人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

IPC分类号： H01L21/324 ,  H01L29/788

CPC分类号： H01L29/7881 ,  G11C16/0483 ,  H01L21/28273 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42324 ,  H01L29/513

摘要： A semiconductor memory device includes a semiconductor substrate, an isolation insulation film filled in a plurality of trenches formed in the semiconductor substrate to define a plurality of element formation regions, a floating gate of polysilicon provided on each of the element formation regions through a first insulation film, a second insulation film, provided on the floating gate, containing a metal element, a control gate of polysilicon, provided on the second insulation film, and source/drain regions provided in the semiconductor substrate, both a polysilicon conductive layer containing a metal element and a mutual diffusion layer composed of a silicate layer of a mixed oxide material composed of a silicon element contained in the floating gate and the control gate and a metal element contained in the second insulation film are provided on a surface of each of the floating gate and the control gate, respectively.

摘要翻译： 半导体存储器件包括半导体衬底，隔离绝缘膜，填充在形成于半导体衬底中的多个沟槽中，以限定多个元件形成区域;多晶硅浮置栅极，通过第一绝缘层设置在每个元件形成区域上; 设置在浮置栅极上的第二绝缘膜，包含设置在第二绝缘膜上的金属元件，多晶硅控制栅极和设置在半导体衬底中的源极/漏极区域，包含金属的多晶硅导电层 元件和由浮置栅极中包含的硅元素和控制栅极组成的混合氧化物材料的硅酸盐层和包含在第二绝缘膜中的金属元素构成的互扩散层设置在每个浮动栅极的表面上 门和控制门。

公开(公告)号：US20080176389A1

公开(公告)日：2008-07-24

申请号：US12054089

申请日：2008-03-24

申请人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

发明人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

IPC分类号： H01L21/4763

CPC分类号： H01L29/7881 ,  G11C16/0483 ,  H01L21/28273 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42324 ,  H01L29/513

摘要： A semiconductor memory device includes a semiconductor substrate, an isolation insulation film filled in a plurality of trenches formed in the semiconductor substrate to define a plurality of element formation regions, a floating gate of polysilicon provided on each of the element formation regions through a first insulation film, a second insulation film, provided on the floating gate, containing a metal element, a control gate of polysilicon, provided on the second insulation film, and source/drain regions provided in the semiconductor substrate, both a polysilicon conductive layer containing a metal element and a mutual diffusion layer composed of a silicate layer of a mixed oxide material composed of a silicon element contained in the floating gate and the control gate and a metal element contained in the second insulation film are provided on a surface of each of the floating gate and the control gate, respectively.

摘要翻译： 半导体存储器件包括半导体衬底，隔离绝缘膜，填充在形成于半导体衬底中的多个沟槽中，以限定多个元件形成区域;多晶硅浮置栅极，通过第一绝缘层设置在每个元件形成区域上; 设置在浮置栅极上的第二绝缘膜，包含设置在第二绝缘膜上的金属元件，多晶硅控制栅极和设置在半导体衬底中的源极/漏极区域，包含金属的多晶硅导电层 元件和由浮置栅极中包含的硅元素和控制栅极组成的混合氧化物材料的硅酸盐层和包含在第二绝缘膜中的金属元素构成的互扩散层设置在每个浮动栅极的表面上 门和控制门。

公开(公告)号：US07294878B2

公开(公告)日：2007-11-13

申请号：US11088947

申请日：2005-03-25

申请人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

发明人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

IPC分类号： H01L27/108

CPC分类号： H01L29/7881 ,  G11C16/0483 ,  H01L21/28273 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42324 ,  H01L29/513

摘要： A semiconductor memory device includes a semiconductor substrate, an isolation insulation film filled in a plurality of trenches formed in the semiconductor substrate to define a plurality of element formation regions, a floating gate provided on each of the element formation regions through a first gate insulation film, a control gate provided on the floating gate through a second gate insulation film, and source/drain regions provided in the semiconductor substrate, wherein a mutual diffusion layer is provided at least at an interface between the second gate insulation film and the control gate.

摘要翻译： 半导体存储器件包括半导体衬底，隔离绝缘膜，填充在形成于半导体衬底中的多个沟槽中以限定多个元件形成区域;浮置栅极，通过第一栅极绝缘膜设置在每个元件形成区域上 ，通过第二栅极绝缘膜设置在浮置栅极上的控制栅极和设置在半导体衬底中的源极/漏极区域，其中至少在第二栅极绝缘膜和控制栅极之间的界面处设置相互扩散层。

公开(公告)号：US07714373B2

公开(公告)日：2010-05-11

申请号：US11822437

申请日：2007-07-05

申请人： Katsuaki Natori ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Hirokazu Ishida ,  Masumi Matsuzaki ,  Yoshio Ozawa

发明人： Katsuaki Natori ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Hirokazu Ishida ,  Masumi Matsuzaki ,  Yoshio Ozawa

IPC分类号： H01L29/788

CPC分类号： H01L27/115 ,  H01L27/11521

摘要： There is disclosed a semiconductor device including a plurality of memory cell transistors, each memory cell transistor including a floating gate electrode isolated from each other via an isolation insulating film every memory cell transistor, an inter-electrode insulating film comprising a HfxAl1-xOy film (0.8≦x≦0.95) formed on the floating gate electrode, and a control gate electrode formed on the inter-electrode insulating film, wherein the memory cell transistors are arrayed to form a memory cell array.

摘要翻译： 公开了一种包括多个存储单元晶体管的半导体器件，每个存储单元晶体管包括通过每个存储单元晶体管的隔离绝缘膜彼此隔离的浮栅，包括Hf x Al 1-x O y膜的电极间绝缘膜（ 形成在浮置栅电极上的栅极电极，以及形成在电极间绝缘膜上的控制栅电极，其中存储单元晶体管被排列以形成存储单元阵列。

公开(公告)号：US20050212036A1

公开(公告)日：2005-09-29

申请号：US11088947

申请日：2005-03-25

申请人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

发明人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

IPC分类号： H01L21/8247 ,  G11C16/04 ,  H01L21/28 ,  H01L27/115 ,  H01L29/423 ,  H01L29/51 ,  H01L29/76 ,  H01L29/788 ,  H01L29/792

CPC分类号： H01L29/7881 ,  G11C16/0483 ,  H01L21/28273 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42324 ,  H01L29/513

摘要： A semiconductor memory device includes a semiconductor substrate, an isolation insulation film filled in a plurality of trenches formed in the semiconductor substrate to define a plurality of element formation regions, a floating gate provided on each of the element formation regions through a first gate insulation film, a control gate provided on the floating gate through a second gate insulation film, and source/drain regions provided in the semiconductor substrate, wherein a mutual diffusion layer is provided at least at an interface between the second gate insulation film and the control gate.

摘要翻译： 半导体存储器件包括半导体衬底，隔离绝缘膜，填充在形成于半导体衬底中的多个沟槽中以限定多个元件形成区域;浮置栅极，通过第一栅极绝缘膜设置在每个元件形成区域上 ，通过第二栅极绝缘膜设置在浮置栅极上的控制栅极和设置在半导体衬底中的源极/漏极区域，其中至少在第二栅极绝缘膜和控制栅极之间的界面处设置相互扩散层。

公开(公告)号：US07612404B2

公开(公告)日：2009-11-03

申请号：US11783933

申请日：2007-04-13

申请人： Akihito Yamamoto ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Daisuke Nishida ,  Ryota Fujisuka ,  Katsuaki Natori ,  Hirokazu Ishida ,  Yoshio Ozawa

发明人： Akihito Yamamoto ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Daisuke Nishida ,  Ryota Fujisuka ,  Katsuaki Natori ,  Hirokazu Ishida ,  Yoshio Ozawa

IPC分类号： H01L29/788

CPC分类号： H01L29/7883 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42336 ,  H01L29/513

摘要： A semiconductor device includes semiconductor substrate, isolation insulating film, nonvolatile memory cells, each of the cells including tunnel insulating film, FG electrode, CG electrode, interelectrode insulating film between the CG and FG electrodes and including a first insulating film and a second insulating film on the first insulating film and having higher permittivity than the first insulating film, the interelectrode insulating film being provided on a side wall of the floating gate electrode in a cross-section view of a channel width direction of the cell, thickness of the interelectrode insulating film increasing from an upper portion of the side wall toward a lower portion of the side wall, thickness of the second insulating film on an upper corner of the FG electrode being thicker than thickness of the second insulating film on the other portions of the side wall in the cross-section view of the channel width direction.

摘要翻译： 半导体器件包括半导体衬底，隔离绝缘膜，非易失性存储单元，每个单元包括隧道绝缘膜，FG电极，CG电极，CG和FG电极之间的电极间绝缘膜，并且包括第一绝缘膜和第二绝缘膜 在第一绝缘膜上并且具有比第一绝缘膜高的介电常数，电极间绝缘膜设置在浮栅电极的侧壁上，在电池的沟道宽度方向的横截面图中，绝缘电极的绝缘层的厚度 膜从侧壁的上部向侧壁的下部增加，FG电极的上角上的第二绝缘膜的厚度比侧壁的其他部分上的第二绝缘膜的厚度厚 在通道宽度方向的横截面视图中。

公开(公告)号：US07368780B2

公开(公告)日：2008-05-06

申请号：US11763070

申请日：2007-06-14

申请人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

发明人： Masayuki Tanaka ,  Yoshio Ozawa ,  Hirokazu Ishida ,  Katsuaki Natori ,  Seiji Inumiya

IPC分类号： H01L29/788

CPC分类号： H01L29/7881 ,  G11C16/0483 ,  H01L21/28273 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42324 ,  H01L29/513

摘要： A semiconductor memory device includes a semiconductor substrate, an isolation insulation film filled in a plurality of trenches formed in the semiconductor substrate to define a plurality of element formation regions, a floating gate of polysilicon provided on each of the element formation regions through a first insulation film, a second insulation film, provided on the floating gate, containing a metal element, a control gate of polysilicon, provided on the second insulation film, and source/drain regions provided in the semiconductor substrate, both a polysilicon conductive layer containing a metal element and a mutual diffusion layer composed of a silicate layer of a mixed oxide material composed of a silicon element contained in the floating gate and the control gate and a metal element contained in the second insulation film are provided on a surface of each of the floating gate and the control gate, respectively.

摘要翻译： 半导体存储器件包括半导体衬底，隔离绝缘膜，填充在形成于半导体衬底中的多个沟槽中，以限定多个元件形成区域;多晶硅浮置栅极，通过第一绝缘层设置在每个元件形成区域上; 设置在浮置栅极上的第二绝缘膜，包含设置在第二绝缘膜上的金属元件，多晶硅控制栅极和设置在半导体衬底中的源极/漏极区域，包含金属的多晶硅导电层 元件和由浮置栅极中包含的硅元素和控制栅极组成的混合氧化物材料的硅酸盐层和包含在第二绝缘膜中的金属元素构成的互扩散层设置在每个浮动栅极的表面上 门和控制门。

公开(公告)号：US20080017914A1

公开(公告)日：2008-01-24

申请号：US11822437

申请日：2007-07-05

申请人： Katsuaki Natori ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Hirokazu Ishida ,  Masumi Matsuzaki ,  Yoshio Ozawa

发明人： Katsuaki Natori ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Hirokazu Ishida ,  Masumi Matsuzaki ,  Yoshio Ozawa

IPC分类号： H01L29/788

CPC分类号： H01L27/115 ,  H01L27/11521

摘要： There is disclosed a semiconductor device including a plurality of memory cell transistors, each memory cell transistor including a floating gate electrode isolated from each other via an isolation insulating film every memory cell transistor, an inter-electrode insulating film comprising a HfxAl1-xOy film (0.8≦x≦0.95) formed on the floating gate electrode, and a control gate electrode formed on the inter-electrode insulating film, wherein the memory cell transistors are arrayed to form a memory cell array.

摘要翻译： 公开了一种包括多个存储单元晶体管的半导体器件，每个存储单元晶体管包括通过每个存储单元晶体管的隔离绝缘膜彼此隔离的浮栅，包括Hf x 形成在浮置栅电极上的Al 1-x O O y O y膜（0.8 <= x <= 0.95），以及形成在栅极上的控制栅电极 - 电极绝缘膜，其中存储单元晶体管被排列以形成存储单元阵列。

公开(公告)号：US20070241388A1

公开(公告)日：2007-10-18

申请号：US11783933

申请日：2007-04-13

申请人： Akihito Yamamoto ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Daisuke Nishida ,  Ryota Fujitsuka ,  Katsuaki Natori ,  Hirokazu Ishida ,  Yoshio Ozawa

发明人： Akihito Yamamoto ,  Masayuki Tanaka ,  Katsuyuki Sekine ,  Daisuke Nishida ,  Ryota Fujitsuka ,  Katsuaki Natori ,  Hirokazu Ishida ,  Yoshio Ozawa

IPC分类号： H01L29/76

CPC分类号： H01L29/7883 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/42336 ,  H01L29/513

摘要： A semiconductor device includes semiconductor substrate, isolation insulating film, nonvolatile memory cells, each of the cells including tunnel insulating film, FG electrode, CG electrode, interelectrode insulating film between the CG and FG electrodes and including a first insulating film and a second insulating film on the first insulating film and having higher permittivity than the first insulating film, the interelectrode insulating film being provided on a side wall of the floating gate electrode in a cross-section view of a channel width direction of the cell, thickness of the interelectrode insulating film increasing from an upper portion of the side wall toward a lower portion of the side wall, thickness of the second insulating film on an upper corner of the FG electrode being thicker than thickness of the second insulating film on the other portions of the side wall in the cross-section view of the channel width direction.

摘要翻译： 半导体器件包括半导体衬底，隔离绝缘膜，非易失性存储单元，每个单元包括隧道绝缘膜，FG电极，CG电极，CG和FG电极之间的电极间绝缘膜，并且包括第一绝缘膜和第二绝缘膜 在第一绝缘膜上并且具有比第一绝缘膜高的介电常数，电极间绝缘膜设置在浮栅电极的侧壁上，在电池的沟道宽度方向的横截面图中，绝缘电极的绝缘层的厚度 膜从侧壁的上部向侧壁的下部增加，FG电极的上角上的第二绝缘膜的厚度比侧壁的其他部分上的第二绝缘膜的厚度厚 在通道宽度方向的横截面视图中。

公开(公告)号：US20080179655A1

公开(公告)日：2008-07-31

申请号：US12020236

申请日：2008-01-25

申请人： Hirokazu Ishida ,  Masayuki Tanaka ,  Yoshio Ozawa

发明人： Hirokazu Ishida ,  Masayuki Tanaka ,  Yoshio Ozawa

IPC分类号： H01L29/423 ,  H01L21/28

CPC分类号： H01L29/42324 ,  H01L27/115 ,  H01L27/11521 ,  H01L29/40114 ,  H01L29/513

摘要： A nonvolatile semiconductor memory device includes a first insulator, first conductor, element isolation insulator, second insulator and second conductor. The first insulator is formed on the main surface of a substrate and the first conductor is formed on the first insulator. The element isolation insulator is filled into at least part of both side surfaces of the first insulator in a gate width direction thereof and both side surfaces of the first conductor in a gate width direction thereof and is so formed that the upper surface thereof will be set with height between those of the upper and bottom surfaces of the first conductor. The second insulator includes a three-layered insulating film formed of a silicon oxide film, a silicon oxynitride film and a silicon oxide film formed on the first conductor and element isolation insulator. The second conductor is formed on the second insulator.

摘要翻译： 非易失性半导体存储器件包括第一绝缘体，第一导体，元件隔离绝缘体，第二绝缘体和第二导体。 第一绝缘体形成在基板的主表面上，第一导体形成在第一绝缘体上。 元件隔离绝缘体在其栅极宽度方向上填充到第一绝缘体的两个侧表面的至少一部分中，并且第一导体的栅极宽度方向的两个侧表面被形成为使得其上表面将被设置 其高度在第一导体的上表面和底表面之间。 第二绝缘体包括由形成在第一导体和元件隔离绝缘体上的氧化硅膜，氧氮化硅膜和氧化硅膜形成的三层绝缘膜。 第二导体形成在第二绝缘体上。