公开(公告)号：US5736438A

公开(公告)日：1998-04-07

申请号：US483411

申请日：1995-06-07

申请人： Hisayuki Nishimura ,  Kazuyuki Sugahara ,  Shigenobu Maeda ,  Takashi Ipposhi ,  Yasuo Inoue ,  Toshiaki Iwamatsu ,  Mikio Ikeda ,  Tatsuya Kunikiyo ,  Junji Tateishi ,  Tadaharu Minato

发明人： Hisayuki Nishimura ,  Kazuyuki Sugahara ,  Shigenobu Maeda ,  Takashi Ipposhi ,  Yasuo Inoue ,  Toshiaki Iwamatsu ,  Mikio Ikeda ,  Tatsuya Kunikiyo ,  Junji Tateishi ,  Tadaharu Minato

IPC分类号： H01L21/20 ,  H01L21/336 ,  H01L21/8244 ,  H01L27/11 ,  H01L29/78 ,  H01L29/786 ,  H01L21/84

CPC分类号： H01L27/11 ,  H01L27/1108 ,  H01L29/78654 ,  H01L27/1281 ,  Y10S257/903

摘要： In a miniaturized complete CMOS SRAM of a TFT load type, a field effect thin-film transistor (TFT) can achieve stable reading and writing operation of a memory cell and can reduce power consumption thereof. The field effect thin-film transistor formed on an insulator includes an active layer and a gate electrode. The gate electrode is formed on a channel region of the active layer with a gate insulating film therebetween. The active layer is formed of a channel region and source/drain regions. The channel region is formed of a monocrystal silicon layer and does not includes a grain boundary. The source/drain regions is formed of a polysilicon layer. The channel region has a density of crystal defects of less than 10.sup.9 pieces/cm.sup.2. The thin film transistor shows an ON current of 0.25 .mu.A/.mu.m per channel width of 1 .mu.m and an OFF current of 15 fA/.mu.m. The thin-film transistor can be applied to a p-channel MOS transistor serving as a load transistor in a memory cell of a CMOS type SRAM.

摘要翻译： 在TFT负载型的小型化的完全CMOS SRAM中，场效应薄膜晶体管（TFT）能够实现对存储单元的稳定的读/写操作并且可以降低其功耗。 形成在绝缘体上的场效应薄膜晶体管包括有源层和栅电极。 栅电极形成在有源层的沟道区上，其间具有栅极绝缘膜。 有源层由沟道区和源极/漏极区形成。 沟道区由单晶硅层形成，不包含晶界。 源/漏区由多晶硅层形成。 沟道区域的晶体缺陷密度小于109个/ cm 2。 薄膜晶体管的通道宽度为1μm，导通电流为0.25μA/μm，OFF电流为15fA /μm。 薄膜晶体管可以被施加到用作CMOS型SRAM的存储单元中的负载晶体管的p沟道MOS晶体管。

公开(公告)号：US5656537A

公开(公告)日：1997-08-12

申请号：US463253

申请日：1995-06-05

申请人： Toshiaki Iwamatsu ,  Yasuo Inoue

发明人： Toshiaki Iwamatsu ,  Yasuo Inoue

IPC分类号： H01L21/32 ,  H01L21/322 ,  H01L21/336 ,  H01L21/76 ,  H01L21/762 ,  H01L27/08 ,  H01L27/12 ,  H01L29/786

CPC分类号： H01L29/66772 ,  H01L21/32 ,  H01L21/3226 ,  H01L21/76264 ,  H01L29/786 ,  H01L29/78609 ,  H01L29/78618 ,  H01L21/76281

摘要： A buried oxide film and an SOI layer are formed on the main surface of a substrate. A nitride film patterned in predetermined configuration is formed on the surface of the SOI layer. The first selective oxidation treatment is applied to the SOI layer with the nitride film used as a mask. At this stage, the isolating oxide film is formed not to reach the buried oxide film. Anisotropic etching is applied to the isolating oxide film with the nitride film used as a mask. A sidewall insulating layer of oxidation-resistant material is formed on the sidewall of the nitride film. With the sidewall insulating layer and nitride film used as masks, the second selective oxidation treatment is applied to the SOI layer, thereby forming an isolating oxide film. Thereby, it becomes possible to prevent a parasitic MOS transistor being formed in the end of the SOI layer.

摘要翻译： 在衬底的主表面上形成掩埋氧化膜和SOI层。 在SOI层的表面上形成以规定构造形成图案的氮化膜。 将第一选择性氧化处理施加到具有用作掩模的氮化物膜的SOI层。 在这个阶段，隔离氧化膜形成为不到达掩埋氧化膜。 使用用作掩模的氮化物膜对隔离氧化膜施加各向异性蚀刻。 在氮化膜的侧壁上形成耐氧化材料的侧壁绝缘层。 利用侧壁绝缘层和氮化物膜作为掩模，对SOI层施加第二选择性氧化处理，从而形成隔离氧化膜。 由此，能够防止在SOI层的端部形成寄生MOS晶体管。

公开(公告)号：US07741679B2

公开(公告)日：2010-06-22

申请号：US11866693

申请日：2007-10-03

申请人： Yasuo Yamaguchi ,  Shigeto Maegawa ,  Takashi Ipposhi ,  Toshiaki Iwamatsu ,  Shigenobu Maeda ,  Yuuichi Hirano ,  Takuji Matsumoto ,  Shoichi Miyamoto

发明人： Yasuo Yamaguchi ,  Shigeto Maegawa ,  Takashi Ipposhi ,  Toshiaki Iwamatsu ,  Shigenobu Maeda ,  Yuuichi Hirano ,  Takuji Matsumoto ,  Shoichi Miyamoto

IPC分类号： H01L23/62

CPC分类号： H01L21/84 ,  H01L27/1203

摘要： A partial oxide film with well regions formed therebeneath isolates transistor formation regions in an SOI layer from each other. A p-type well region is formed beneath part of the partial oxide film which isolates NMOS transistors from each other, and an n-type well region is formed beneath part of the partial oxide film which isolates PMOS transistors from each other. The p-type well region and the n-type well region are formed in side-by-side relation beneath part of the partial oxide film which provides isolation between the NMOS and PMOS transistors. A body region is in contact with the well region adjacent thereto. An interconnect layer formed on an interlayer insulation film is electrically connected to the body region through a body contact provided in the interlayer insulation film. A semiconductor device having an SOI structure reduces a floating-substrate effect.

摘要翻译： 在其之间形成的具有阱区的部分氧化膜彼此隔离SOI层中的晶体管形成区域。 在部分氧化膜的下部形成有p型阱区，其将NMOS晶体管彼此隔离，并且在部分氧化膜的下部形成n型阱区，其将PMOS晶体管彼此隔离。 p型阱区域和n型阱区域在部分氧化膜的一部分下方并排地形成，其提供NMOS和PMOS晶体管之间的隔离。 身体区域与与其相邻的井区域接触。 形成在层间绝缘膜上的互连层通过设置在层间绝缘膜中的体接触电连接到体区。 具有SOI结构的半导体器件减少浮置衬底效应。

公开(公告)号：US07723790B2

公开(公告)日：2010-05-25

申请号：US12208840

申请日：2008-09-11

申请人： Yuuichi Hirano ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

发明人： Yuuichi Hirano ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

IPC分类号： H01L27/01 ,  H01L27/12 ,  H01L31/0392 ,  H01L29/00

CPC分类号： H01L27/1203 ,  H01L21/84

摘要： An isolation insulating film (5) of partial-trench type is selectively formed in an upper surface of a silicon layer (4). A power supply line (21) is formed above the isolation insulating film (5). Below the power supply line (21), a complete isolation portion (23) reaching an upper surface of an insulating film (3) is formed in the isolation insulating film (5). In other words, a semiconductor device comprises a complete-isolation insulating film which is so formed as to extend from the upper surface of the silicon layer (4) and reach the upper surface of insulating film (3) below the power supply line (21). With this structure, it is possible to obtain the semiconductor device capable of suppressing variation in potential of a body region caused by variation in potential of the power supply line.

摘要翻译： 在硅层（4）的上表面中选择性地形成部分沟槽型隔离绝缘膜（5）。 电源线（21）形成在隔离绝缘膜（5）的上方。 在电源线（21）的下方，在隔离绝缘膜（5）上形成到达绝缘膜（3）的上表面的完全隔离部（23）。 换句话说，半导体器件包括完全隔离绝缘膜，其形成为从硅层（4）的上表面延伸并到达电源线（21）下方的绝缘膜（3）的上表面 ）。 利用这种结构，可以获得能够抑制由电源线的电位变化引起的体区的电位变化的半导体器件。

公开(公告)号：US20090014797A1

公开(公告)日：2009-01-15

申请号：US12208840

申请日：2008-09-11

申请人： Yuuichi HIRANO ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

发明人： Yuuichi HIRANO ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

IPC分类号： H01L29/786

CPC分类号： H01L27/1203 ,  H01L21/84

摘要： An isolation insulating film (5) of partial-trench type is selectively formed in an upper surface of a silicon layer (4). A power supply line (21) is formed above the isolation insulating film (5). Below the power supply line (21), a complete isolation portion (23) reaching an upper surface of an insulating film (3) is formed in the isolation insulating film (5). In other words, a semiconductor device comprises a complete-isolation insulating film which is so formed as to extend from the upper surface of the silicon layer (4) and reach the upper surface of insulating film (3) below the power supply line (21). With this structure, it is possible to obtain the semiconductor device capable of suppressing variation in potential of a body region caused by variation in potential of the power supply line.

摘要翻译： 在硅层（4）的上表面中选择性地形成部分沟槽型隔离绝缘膜（5）。 电源线（21）形成在隔离绝缘膜（5）的上方。 在电源线（21）的下方，在隔离绝缘膜（5）上形成到达绝缘膜（3）的上表面的完全隔离部（23）。 换句话说，半导体器件包括完全隔离绝缘膜，其形成为从硅层（4）的上表面延伸并到达电源线（21）下方的绝缘膜（3）的上表面 ）。 利用这种结构，可以获得能够抑制由电源线的电位变化引起的体区的电位变化的半导体器件。

公开(公告)号：US20080315313A1

公开(公告)日：2008-12-25

申请号：US11866693

申请日：2007-10-03

申请人： Yasuo YAMAGUCHI ,  Shigeto Maegawa ,  Takashi Ipposhi ,  Toshiaki Iwamatsu ,  Shigenobu Maeda ,  Yuuichi Hirano ,  Takuji Matsumoto ,  Shoichi Miyamoto

发明人： Yasuo YAMAGUCHI ,  Shigeto Maegawa ,  Takashi Ipposhi ,  Toshiaki Iwamatsu ,  Shigenobu Maeda ,  Yuuichi Hirano ,  Takuji Matsumoto ,  Shoichi Miyamoto

IPC分类号： H01L27/12

CPC分类号： H01L21/84 ,  H01L27/1203

摘要： A partial oxide film with well regions formed therebeneath isolates transistor formation regions in an SOI layer from each other. A p-type well region is formed beneath part of the partial oxide film which isolates NMOS transistors from each other, and an n-type well region is formed beneath part of the partial oxide film which isolates PMOS transistors from each other. The p-type well region and the n-type well region are formed in side-by-side relation beneath part of the partial oxide film which provides isolation between the NMOS and PMOS transistors. A body region is in contact with the well region adjacent thereto. An interconnect layer formed on an interlayer insulation film is electrically connected to the body region through a body contact provided in the interlayer insulation film. A semiconductor device having an SOI structure reduces a floating-substrate effect.

摘要翻译： 在其之间形成的具有阱区的部分氧化膜彼此隔离SOI层中的晶体管形成区域。 在部分氧化膜的下部形成有p型阱区，其将NMOS晶体管彼此隔离，并且在部分氧化膜的下部形成n型阱区，其将PMOS晶体管彼此隔离。 p型阱区域和n型阱区域在部分氧化膜的一部分下方并排地形成，其提供NMOS和PMOS晶体管之间的隔离。 身体区域与与其相邻的井区域接触。 形成在层间绝缘膜上的互连层通过设置在层间绝缘膜中的体接触电连接到体区。 具有SOI结构的半导体器件减少浮置衬底效应。

公开(公告)号：US20070138560A1

公开(公告)日：2007-06-21

申请号：US11677956

申请日：2007-02-22

申请人： Yuuichi Hirano ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

发明人： Yuuichi Hirano ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

IPC分类号： H01L27/12 ,  H01L29/94

CPC分类号： H01L27/1203 ,  H01L21/84

摘要： An isolation insulating film (5) of partial-trench type is selectively formed in an upper surface of a silicon layer (4). A power supply line (21) is formed above the isolation insulating film (5). Below the power supply line (21), a complete isolation portion (23) reaching an upper surface of an insulating film (3) is formed in the isolation insulating film (5). In other words, a semiconductor device comprises a complete-isolation insulating film which is so formed as to extend from the upper surface of the silicon layer (4) and reach the upper surface of insulating film (3) below the power supply line (21). With this structure, it is possible to obtain the semiconductor device capable of suppressing variation in potential of a body region caused by variation in potential of the power supply line.

摘要翻译： 在硅层（4）的上表面中选择性地形成部分沟槽型隔离绝缘膜（5）。 电源线（21）形成在隔离绝缘膜（5）的上方。 在电源线（21）的下方，在隔离绝缘膜（5）上形成到达绝缘膜（3）的上表面的完全隔离部（23）。 换句话说，半导体器件包括完全隔离绝缘膜，其形成为从硅层（4）的上表面延伸并到达电源线（21）下方的绝缘膜（3）的上表面 ）。 利用这种结构，可以获得能够抑制由电源线的电位变化引起的体区的电位变化的半导体器件。

公开(公告)号：US07193272B2

公开(公告)日：2007-03-20

申请号：US11108843

申请日：2005-04-19

申请人： Yuuichi Hirano ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

发明人： Yuuichi Hirano ,  Shigeto Maegawa ,  Toshiaki Iwamatsu ,  Takuji Matsumoto ,  Shigenobu Maeda ,  Yasuo Yamaguchi

IPC分类号： H01L27/01 ,  H01L27/12 ,  H01L31/0392

CPC分类号： H01L27/1203 ,  H01L21/84

摘要： An isolation insulating film (5) of partial-trench type is selectively formed in an upper surface of a silicon layer (4). A power supply line (21) is formed above the isolation insulating film (5). Below the power supply line (21), a complete isolation portion (23) reaching an upper surface of an insulating film (3) is formed in the isolation insulating film (5). In other words, a semiconductor device comprises a complete-isolation insulating film which is so formed as to extend from the upper surface of the silicon layer (4) and reach the upper surface of insulating film (3) below the power supply line (21). With this structure, it is possible to obtain the semiconductor device capable of suppressing variation in potential of a body region caused by variation in potential of the power supply line.

摘要翻译： 在硅层（4）的上表面中选择性地形成部分沟槽型隔离绝缘膜（5）。 电源线（21）形成在隔离绝缘膜（5）的上方。 在电源线（21）的下方，在隔离绝缘膜（5）上形成到达绝缘膜（3）的上表面的完全隔离部（23）。 换句话说，半导体器件包括完全隔离绝缘膜，其形成为从硅层（4）的上表面延伸并到达电源线（21）下方的绝缘膜（3）的上表面 ）。 利用这种结构，可以获得能够抑制由电源线的电位变化引起的体区的电位变化的半导体器件。

公开(公告)号：US06958266B2

公开(公告)日：2005-10-25

申请号：US10120485

申请日：2002-04-12

申请人： Yasuo Yamaguchi ,  Shigeto Maegawa ,  Takashi Ipposhi ,  Toshiaki Iwamatsu ,  Shigenobu Maeda ,  Yuuichi Hirano ,  Takuji Matsumoto ,  Shoichi Miyamoto

发明人： Yasuo Yamaguchi ,  Shigeto Maegawa ,  Takashi Ipposhi ,  Toshiaki Iwamatsu ,  Shigenobu Maeda ,  Yuuichi Hirano ,  Takuji Matsumoto ,  Shoichi Miyamoto

IPC分类号： H01L21/762 ,  H01L21/331 ,  H01L21/8238 ,  H01L21/84 ,  H01L27/01 ,  H01L27/08 ,  H01L27/092 ,  H01L27/12 ,  H01L29/786 ,  H01L31/00

CPC分类号： H01L21/84 ,  H01L27/1203

摘要： A partial oxide film (31) with well regions formed therebeneath isolates transistor formation regions in an SOI layer (3) from each other. A p-type well region (11) is formed beneath part of the partial oxide film (31) which isolates NMOS transistors from each other, and an n-type well region (12) is formed beneath part of the partial oxide film (31) which isolates PMOS transistors from each other. The p-type well region (11) and the n-type well region (12) are formed in side-by-side relation beneath part of the partial oxide film (31) which provides isolation between the NMOS and PMOS transistors. A body region is in contact with the well region (11) adjacent thereto. An interconnect layer formed on an interlayer insulation film (4) is electrically connected to the body region through a body contact provided in the interlayer insulation film (4). A semiconductor device having an SOI structure reduces a floating-substrate effect.

公开(公告)号：US20050212056A1

公开(公告)日：2005-09-29

申请号：US11135522

申请日：2005-05-24

申请人： Toshiaki Iwamatsu ,  Takashi Ipposhi ,  Hideki Naruoka ,  Nobuyoshi Hattori ,  Shigeto Maegawa ,  Yasuo Yamaguchi ,  Takuji Matsumoto

发明人： Toshiaki Iwamatsu ,  Takashi Ipposhi ,  Hideki Naruoka ,  Nobuyoshi Hattori ,  Shigeto Maegawa ,  Yasuo Yamaguchi ,  Takuji Matsumoto

IPC分类号： H01L21/76 ,  H01L21/762 ,  H01L21/84 ,  H01L27/01 ,  H01L27/08 ,  H01L27/12 ,  H01L29/45 ,  H01L29/786

CPC分类号： H01L21/76286 ,  H01L21/76264 ,  H01L21/76281 ,  H01L21/76283 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/458

摘要： To provide a semiconductor device capable of preventing drawbacks from being caused by metal pollution and a method of manufacturing the semiconductor device. A region (NR) and a region (PR) are defined by a trench isolation oxide film (ST21), a polysilicon film (PS21) is selectively provided on the trench isolation oxide film (ST21), a silicon layer (S22) is provided on the polysilicon film (PS21), and a side wall spacer (SW2) is provided on a side surface of the polysilicon film (PS21). The polysilicon film (PS21) is provided in a position corresponding to a top of a PN junction portion JP of a P-type well region (WR11) and an N-type well region (WR12) in an SOI layer 3 across the two well regions.

摘要翻译： 提供能够防止金属污染引起的缺陷的半导体器件以及半导体器件的制造方法。 区域（NR）和区域（PR）由沟槽隔离氧化膜（ST21）限定，在沟槽隔离氧化膜（ST21）上选择性地设置多晶硅膜（PS21），硅层（S 22）设置在多晶硅膜（PS21）上，在多晶硅膜（PS21）的侧面设置有侧壁隔板（SW2）。 多晶硅膜（PS21）被设置在对应于SOI层3中的P型阱区域（WR 11）和N型阱区域（WR 12）的PN结部分JP的顶部的位置 两个井区。