-
1.
公开(公告)号:US4873203A
公开(公告)日:1989-10-10
申请号:US221351
申请日:1988-07-19
申请人: Toru Kaga , Shinichiro Kimura , Tokuo Kure , Yoshifumi Kawamoto , Hideo Sunami
发明人: Toru Kaga , Shinichiro Kimura , Tokuo Kure , Yoshifumi Kawamoto , Hideo Sunami
IPC分类号: H01L27/04 , H01L21/316 , H01L21/32 , H01L21/334 , H01L21/763 , H01L21/822 , H01L21/8242 , H01L27/10 , H01L27/108
CPC分类号: H01L29/66181 , H01L21/32 , H01L21/763
摘要: An insulation film on silicon buried in a trench is prepared by forming a field oxide film by using a first Si.sub.3 N.sub.4 mask formed on a silicon substrate, forming a second Si.sub.3 N.sub.4 mask for formation of a trench, forming a trench in the silicon substrate by using the second Si.sub.3 N.sub.4 mask, burying polycrystalline silicon in the trench, removing the second Si.sub.3 N.sub.4 mask while leaving the first Si.sub.3 N.sub.4 mask and oxidizing the surface of the polycrystalline silicon buried in the trench by thermal oxidation. The so-formed insulation film on silicon buried in the trench has a uniform thickness and a high dielectric strength. The surface of the substrate at a part where an active element will be formed in the future is not oxidized.
摘要翻译: 通过使用在硅衬底上形成的第一Si 3 N 4掩模形成场氧化膜,形成用于形成沟槽的第二Si 3 N 4掩模,通过使用硅衬底形成硅衬底中的沟槽来制备掩埋在沟槽中的硅上的绝缘膜 第二Si 3 N 4掩模,在沟槽中埋入多晶硅,除去第二Si 3 N 4掩模,同时留下第一Si 3 N 4掩模,并通过热氧化氧化掩埋在沟槽中的多晶硅的表面。 埋在沟槽中的硅上如此形成的绝缘膜具有均匀的厚度和高介电强度。 在将来将形成有源元件的部分处的基板的表面不被氧化。
-
公开(公告)号:US5374576A
公开(公告)日:1994-12-20
申请号:US72482
申请日:1993-06-03
申请人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
发明人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
IPC分类号: H01L27/108 , H01L29/417 , H01L29/45 , H01L21/265 , H01L21/70 , H01L27/00
CPC分类号: H01L27/10808 , H01L27/10817 , H01L29/41775 , H01L29/456
摘要: A semiconductor memory device having STC cells wherein the major portions of active regions consisting of channel-forming portions are inclined at an angle of 45 degrees with respect to word lines and bit lines that meet at right angles with each other, thereby enabling the storage capacity portions to be arranged very densely and a sufficiently large capacity to be maintained with very small cell areas. Since the storage capacity portions are formed even on the bit lines, the bit lines are shielded, so that the capacity decreases between the bit lines and, hence, the memory array noise decreases. It is also possible to design the charge storage capacity portion so that a part of thereof has a form of a wall substantially vertical to the substrate in order to increase the capacity.
摘要翻译: 具有STC单元的半导体存储器件,其中由沟道形成部分组成的有源区的主要部分相对于彼此成直角相交的字线和位线以45度的角度倾斜,从而使得存储容量 部分布置非常密集,并且具有足够大的容量以保持非常小的单元格区域。 由于存储容量部分甚至在位线上形成,所以位线被屏蔽,使得位线之间的容量减小,因此存储器阵列噪声减小。 也可以设计电荷存储容量部分,使得其一部分具有基本上垂直于衬底的壁的形式,以增加容量。
-
公开(公告)号:US06878586B2
公开(公告)日:2005-04-12
申请号:US10458271
申请日:2003-06-11
申请人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
发明人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
IPC分类号: H01L27/108 , H01L29/417 , H01L29/45 , H01L21/8242
CPC分类号: H01L27/10817 , H01L27/10808 , H01L29/41775 , H01L29/456
摘要: A semiconductor memory device having STC cells wherein the major portions of active regions consisting of channel-forming portions are inclined at an angle of 45 degrees with respect to word lines and bit lines that meet at right angles with each other, thereby enabling the storage capacity portions to be arranged very densely and a sufficiently large capacity to be maintained with very small cell areas. Since the storage capacity portions are formed even on the bit lines, the bit lines are shielded, so that the capacity decreases between the bit lines and, hence, the memory array noise decreases. It is also possible to design the charge storage capacity portion so that a part of thereof has a form of a wall substantially vertical to the substrate in order to increase the capacity.
摘要翻译: 具有STC单元的半导体存储器件,其中由沟道形成部分组成的有源区的主要部分相对于彼此成直角相交的字线和位线以45度的角度倾斜,从而使得存储容量 部分布置非常密集,并且具有足够大的容量以保持非常小的单元格区域。 由于存储容量部分甚至在位线上形成,所以位线被屏蔽,使得位线之间的容量减小,因此存储器阵列噪声减小。 也可以设计电荷存储容量部分,使得其一部分具有基本上垂直于衬底的壁的形式,以增加容量。
-
4.
公开(公告)号:US5200635A
公开(公告)日:1993-04-06
申请号:US686757
申请日:1991-04-17
申请人: Toru Kaga , Shinichiro Kimura , Katsutaka Kimura , Yoshinobu Nakagome , Digh Hisamoto , Yoshifumi Kawamoto , Eiji Takeda , Shimpei Iijima , Tokuo Kure , Takashi Nishida
发明人: Toru Kaga , Shinichiro Kimura , Katsutaka Kimura , Yoshinobu Nakagome , Digh Hisamoto , Yoshifumi Kawamoto , Eiji Takeda , Shimpei Iijima , Tokuo Kure , Takashi Nishida
IPC分类号: H01L27/108 , H01L29/417 , H01L29/45
CPC分类号: H01L29/41775 , H01L27/10817 , H01L29/456 , H01L2924/0002
摘要: The present invention concerns a semiconductor device having a low-resistivity wiring structure. Wirings formed directly on a hill and valley structure result in a thin portion and, in an extreme case, a disconnected portion. This increases the resistivity of wirings on the hill and valley structure and lowers the reliability of the connection. In a case where the wirings are data lines of a memory, with an increased effective length, the resistance and the parasitic capacitance of the data line is greater. The above mentioned problems have been solved by wirings which comprise at least two layers of conductive film including a first conductive film as a lower layer and a second conductive film as an upper layer, and the first conductive layer has a surface moderating or planarizing the hills and valleys in the underlying material.
摘要翻译: 本发明涉及具有低电阻率布线结构的半导体器件。 直接形成在山谷和山谷结构上的布线导致薄的部分,并且在极端情况下是断开的部分。 这增加了山丘和山谷结构上的布线电阻率,降低了连接的可靠性。 在布线是存储器的数据线的情况下,随着有效长度的增加,数据线的电阻和寄生电容更大。 上述问题已经通过包括至少两层导电膜的布线来解决,所述导电膜包括作为下层的第一导电膜和作为上层的第二导电膜,并且第一导电层具有调节或平坦化山丘的表面 和底层材料中的山谷。
-
公开(公告)号:US5591998A
公开(公告)日:1997-01-07
申请号:US443106
申请日:1995-05-17
申请人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
发明人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
IPC分类号: H01L27/108 , H01L29/417 , H01L29/45
CPC分类号: H01L27/10808 , H01L27/10817 , H01L29/41775 , H01L29/456
摘要: A semiconductor memory device having STC cells wherein the major portions of active regions consisting of channel-forming portions are inclined at an angle of 45 degrees with respect to word lines and bit lines that meet at right angles with each other, thereby enabling the storage capacity portions to be arranged very densely and a sufficiently large capacity to be maintained with very small cell areas. Since the storage capacity portions are formed even on the bit lines, the bit lines are shielded, so that the capacity decreases between the bit lines and, hence, the memory array noise decreases. It is also possible to design the charge storage capacity portion so that a part of thereof has a form of a wall substantially vertical to the substrate in order to increase the capacity.
摘要翻译: 具有STC单元的半导体存储器件,其中由沟道形成部分组成的有源区的主要部分相对于彼此成直角相交的字线和位线以45度的角度倾斜,从而使得存储容量 部分布置非常密集,并且具有足够大的容量以保持非常小的单元格区域。 由于存储容量部分甚至在位线上形成,所以位线被屏蔽,使得位线之间的容量减小,因此存储器阵列噪声减小。 也可以设计电荷存储容量部分,使得其一部分具有基本上垂直于衬底的壁的形式,以增加容量。
-
公开(公告)号:US5583358A
公开(公告)日:1996-12-10
申请号:US324352
申请日:1994-10-17
申请人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
发明人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
IPC分类号: H01L27/108 , H01L29/417 , H01L29/45
CPC分类号: H01L27/10808 , H01L27/10817 , H01L29/41775 , H01L29/456
摘要: A semiconductor memory device having STC cells wherein the major portions of active regions consisting of channel-forming portions are inclined at an angle of 45 degrees with respect to word lines and bit lines that meet at right angles with each other, thereby enabling the storage capacity portions to be arranged very densely and a sufficiently large capacity to be maintained with very small cell areas. Since the storage capacity portions are formed even on the bit lines, the bit lines are shielded, so that the capacity decreases between the bit lines and, hence, the memory array noise decreases. It is also possible to design the charge storage capacity portion so that a part of thereof has a form of a wall substantially vertical to the substrate in order to increase the capacity.
摘要翻译: 具有STC单元的半导体存储器件,其中由沟道形成部分组成的有源区的主要部分相对于彼此成直角相交的字线和位线以45度的角度倾斜,从而使得存储容量 部分布置非常密集,并且具有足够大的容量以保持非常小的单元格区域。 由于存储容量部分甚至在位线上形成,所以位线被屏蔽,使得位线之间的容量减小,因此存储器阵列噪声减小。 也可以设计电荷存储容量部分,使得其一部分具有基本上垂直于衬底的壁的形式,以增加容量。
-
公开(公告)号:US5140389A
公开(公告)日:1992-08-18
申请号:US475148
申请日:1990-02-05
申请人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
发明人: Shinichiro Kimura , Naotaka Hashimoto , Yoshio Sakai , Tokuo Kure , Yoshifumi Kawamoto , Toru Kaga , Eiji Takeda
IPC分类号: H01L27/108
CPC分类号: H01L27/10817
摘要: A semiconductor memory device having STC cells wherein the major portions of active regions consisting of channel-forming portions are inclined at an angle of 45 degrees with respect to word lines and bit lines that meet at right angles with each other, thereby enabling the storage capacitor portions to be arranged very densely and a sufficiently large capacitance to be maintained with very small cell areas. Since the storage capacitor portions are formed even on the bit lines, the bit lines are shielded, so that the capacitance decreases between the bit lines and, hence, the memory array noise decreases. It is also possible to design the charge storage capacitor portion so that a part thereof is in the form of a wall substantially vertical to the substrate in order to increase the capacitance.
摘要翻译: 具有STC单元的半导体存储器件,其中由沟道形成部分组成的有源区的主要部分相对于彼此成直角相交的字线和位线以45度的角度倾斜,从而使得存储电容器 要非常密集地布置的部分和足够大的电容以保持非常小的电池区域。 由于存储电容器部分甚至在位线上形成,所以位线被屏蔽,使得位线之间的电容减小,因此存储器阵列噪声减小。 也可以设计电荷存储电容器部分,使得其一部分呈基本上垂直于衬底的壁的形式,以增加电容。
-
公开(公告)号:US06355517B1
公开(公告)日:2002-03-12
申请号:US08172101
申请日:1993-12-23
申请人: Hideo Sunami , Tokuo Kure , Yoshifumi Kawamoto
发明人: Hideo Sunami , Tokuo Kure , Yoshifumi Kawamoto
IPC分类号: H01L218242
CPC分类号: G11C11/404 , H01L27/10829
摘要: A semiconductor memory having a capacitor formed by utilizing a groove formed in a semiconductor substrate and an insulated gate field effect transistor and suppressing expansion of a depletion layer from the groove, and a method for fabricating the same are disclosed. An area occupied by each memory cell can be made very small and a distance between the memory cells can also be made very small, accordingly, high density integration is facilitated.
摘要翻译: 公开了一种半导体存储器,其具有通过利用形成在半导体衬底中的沟槽和绝缘栅场效应晶体管而形成的电容器,并且抑制了耗尽层从沟槽的膨胀及其制造方法。 可以使每个存储单元所占据的面积非常小,并且存储单元之间的距离也可以非常小,因此便于高密度集成。
-
公开(公告)号:US4984030A
公开(公告)日:1991-01-08
申请号:US201100
申请日:1988-05-31
申请人: Hideo Sunami , Tokuo Kure , Yoshifumi Kawamoto , Masao Tamura , Masanobu Miyao
发明人: Hideo Sunami , Tokuo Kure , Yoshifumi Kawamoto , Masao Tamura , Masanobu Miyao
IPC分类号: G11C11/401 , H01L21/033 , H01L21/763 , H01L21/822 , H01L21/8242 , H01L27/04 , H01L27/10 , H01L27/108 , H01L29/78
CPC分类号: H01L21/763 , H01L21/033 , H01L27/10841
摘要: A semiconductor memory wherein a part of each capacitor is formed on side walls of an island region surrounded with a recess formed in a semiconductor substrate, and the island region and other regions are electrically isolated by the recess.
-
公开(公告)号:US5357131A
公开(公告)日:1994-10-18
申请号:US93033
申请日:1993-07-19
申请人: Hideo Sunami , Tokuo Kure , Yoshifumi Kawamoto , Masao Tamura , Masanobu Miyao
发明人: Hideo Sunami , Tokuo Kure , Yoshifumi Kawamoto , Masao Tamura , Masanobu Miyao
IPC分类号: H01L21/033 , H01L21/308 , H01L27/108 , H01L27/12
CPC分类号: H01L27/1203 , H01L21/0337 , H01L21/3086 , H01L27/1082 , H01L27/10832 , H01L27/10841
摘要: A semiconductor memory wherein a part of each capacitor is formed on side walls of an island region surrounded with a recess formed in a semiconductor substrate, and the island region and other regions are electrically isolated by the recess.
摘要翻译: 一种半导体存储器,其中每个电容器的一部分形成在由形成在半导体衬底中的凹部包围的岛状区域的侧壁上,并且岛状区域和其它区域通过凹部电隔离。
-
-
-
-
-
-
-
-
-