专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4914488A Compound semiconductor structure and process for making same 失效
标题翻译：复合半导体结构及其制造方法
公开(公告)号：US4914488A
公开(公告)日：1990-04-03
申请号：US189179
申请日：1988-05-02
申请人： Masao Yamane , Tomoyoshi Mishima , Shigeo Goto , Susumu Takahashi , Makoto Morioka
发明人： Masao Yamane , Tomoyoshi Mishima , Shigeo Goto , Susumu Takahashi , Makoto Morioka
IPC分类号： H01L21/22 , H01L21/335 , H01L29/15 , H01L29/778
CPC分类号： H01L29/66462 , H01L21/22 , H01L29/155 , H01L29/7783 , H01L29/7787
摘要： A compound semiconductor structure in the form of a superlattice film with effectively graded average composition, comprising an alternating lamination of two kinds of layers of different composition to form pairs of layers, the ratio of the thickness of one layer to the thickness of the other in said pairs of layers being gradually varied in the direction of thickness throughout successive pairs, thereby the average composition being effectively graded throughout the pairs. In a hetero-junction field effect transistor, the layer of effectively graded composition is used between a semiconductor layer making low resistance contact with a current-supplying electrode and a semiconductor layer where a two dimensional channel is to be formed. In case of AlGaAs/GaAs system, the Al composition is varied. When the superlattice film is heat-treated, Al in the AlGaAs layer diffuses into the GaAs layer, yielding a film with actually smoothly graded Al mole fraction.
摘要翻译：具有有效分级平均组成的超晶格膜形式的化合物半导体结构，包括两种不同组成的层的交替叠层以形成一对层，一层的厚度与另一层的厚度之比所述成对的层在整个连续的对中在厚度方向上逐渐变化，从而平均组成在整个对中有效地分级。在异质结场效应晶体管中，在与供电电极进行低电阻接触的半导体层与要形成二维沟道的半导体层之间使用有效梯度组成的层。在AlGaAs / GaAs系统的情况下，Al组成是变化的。当超晶格膜被热处理时，AlGaAs层中的Al扩散到GaAs层中，产生具有平滑分级的Al摩尔分数的膜。

2. 发明授权

US5381027A Semiconductor device having a heterojunction and a two dimensional gas as an active layer 失效
标题翻译：具有异质结和二维气体作为有源层的半导体器件
公开(公告)号：US5381027A
公开(公告)日：1995-01-10
申请号：US134622
申请日：1993-10-12
申请人： Toshiyuki Usagawa , Kenji Hiruma , Masahiko Kawata , Shigeo Goto , Katsuhiko Mitani , Masao Yamane , Susumu Takahashi , Tomonori Tanoue , Yoshinori Imamura
发明人： Toshiyuki Usagawa , Kenji Hiruma , Masahiko Kawata , Shigeo Goto , Katsuhiko Mitani , Masao Yamane , Susumu Takahashi , Tomonori Tanoue , Yoshinori Imamura
IPC分类号： H01L21/18 , H01L21/285 , H01L21/331 , H01L21/335 , H01L27/06 , H01L29/737 , H01L29/778 , H01L29/804 , H01L29/784
CPC分类号： H01L29/66318 , H01L21/182 , H01L21/28587 , H01L27/0605 , H01L29/66462 , H01L29/7373 , H01L29/7787
摘要： This invention discloses a heterojunction type field effect transistor such as 2DEG-FET and a heterojunction type bipolar transistor such as 2DEG-HBT. The former is fabricated by applying to the formation of its source and drain regions a technique which causes the disorder of the heterojunction by intoduction of an impurity such as by ion implantation or a technique which causes the disorder of the heterojunction by forming a film made of at least one kind of material selected from insulators, metals and semiconductors which have a different linear coefficient of thermal expansion from that of the material of a semiconductor substrate on the heterojunction semiconductor region which is to be disordered. The latter is fabricated by applying either of the techniques described above to a base ohmic contact region. These semiconductor devices can reduce the source-gate resistance and the parasitic base resistance. The invention discloses also the structure of the ohmic contact layer which has a trench on the surface thereof and is particularly effective for reducing the source-gate parasitic resistance.
摘要翻译：本发明公开了一种异质结型场效应晶体管，例如2DEG-FET和异质结型双极晶体管，例如2DEG-HBT。前者通过应用于其源极和漏极区域的形成来制造通过诸如通过离子注入引起杂质的异质结的紊乱或通过形成由选自绝缘体，金属和半导体的至少一种材料，其具有不同于待混杂的异质结半导体区域上的半导体衬底的材料的线性热膨胀系数。后者通过将上述技术中的任一种应用于基极欧姆接触区域来制造。这些半导体器件可以降低源极栅极电阻和寄生基极电阻。本发明还公开了欧姆接触层的结构，其在其表面上具有沟槽，并且对于减小源极寄生电阻特别有效。

3. 发明授权

US5258631A Semiconductor device having a two-dimensional electron gas as an active layer 失效
标题翻译：具有二维电子气体作为活性层的半导体装置
公开(公告)号：US5258631A
公开(公告)日：1993-11-02
申请号：US884878
申请日：1992-05-18
申请人： Toshiyuki Usagawa , Kenji Hiruma , Masahiko Kawata , Shigeo Goto , Katsuhiko Mitani , Masao Yamane , Susumu Takahashi , Tomonori Tanoue , Yoshinori Imamura
发明人： Toshiyuki Usagawa , Kenji Hiruma , Masahiko Kawata , Shigeo Goto , Katsuhiko Mitani , Masao Yamane , Susumu Takahashi , Tomonori Tanoue , Yoshinori Imamura
IPC分类号： H01L21/18 , H01L21/285 , H01L21/331 , H01L21/335 , H01L27/06 , H01L29/737 , H01L29/778 , H01L29/06 , H01L29/167 , H01L29/30 , H01L31/072
CPC分类号： H01L29/66318 , H01L21/182 , H01L21/28587 , H01L27/0605 , H01L29/66462 , H01L29/7373 , H01L29/7787
摘要： This invention discloses a heterojunction type field effect transistor such as 2DEG-FET and a heterojunction type bipolar transistor such as 2DEG-HBT. The former is fabricated by applying to the formation of its source and drain regions a technique which causes the disorder of the heterojunction by introduction of an impurity such as by ion implantation or a technique which causes the disorder of the heterojunction by forming a film made of at least one kind of material selected from insulators, metals and semiconductors which have a different linear coefficient of thermal expansion from that of the material of a semiconductor substrate on the heterojunction semiconductor region which is to be disordered. The latter is fabricated by applying either of the techniques described above to a base ohmic contact region. These semiconductor devices can reduce the source-gate resistance and the parasitic base resistance. The invention discloses also the structure of the ohmic contact layer which has a trench on the surface thereof and is particularly effective for reducing the source-gate parasitic resistance.
摘要翻译：本发明公开了一种异质结型场效应晶体管，例如2DEG-FET和异质结型双极晶体管，例如2DEG-HBT。前者通过应用其源极和漏极区域的形成来制造通过引入杂质例如通过离子注入引起异质结的紊乱的技术或通过形成由选自绝缘体，金属和半导体的至少一种材料，其具有不同于待混杂的异质结半导体区域上的半导体衬底的材料的线性热膨胀系数。后者通过将上述技术中的任一种应用于基极欧姆接触区域来制造。这些半导体器件可以降低源极栅极电阻和寄生基极电阻。本发明还公开了欧姆接触层的结构，其在其表面上具有沟槽，并且对于减小源极寄生电阻特别有效。

4. 发明授权

US5668402A Semiconductor device 失效
标题翻译：半导体器件
公开(公告)号：US5668402A
公开(公告)日：1997-09-16
申请号：US66635
申请日：1993-05-24
申请人： Kazuhiro Mochizuki , Shigeo Goto , Chushirou Kusano , Masahiko Kawata , Hiroshi Masuda , Katsuhiko Mitani , Susumu Takahashi
发明人： Kazuhiro Mochizuki , Shigeo Goto , Chushirou Kusano , Masahiko Kawata , Hiroshi Masuda , Katsuhiko Mitani , Susumu Takahashi
IPC分类号： H01L29/73 , A61F7/02 , H01L21/20 , H01L21/331 , H01L21/338 , H01L29/04 , H01L29/205 , H01L29/737 , H01L29/812
CPC分类号： H01L29/045 , H01L21/02395 , H01L21/02433 , H01L21/02463 , H01L21/02505 , H01L21/02532 , H01L21/02546 , H01L21/02609 , A61F2007/0265
摘要： A semiconductor device comprises a semiconductor substrate formed by a first single crystalline semiconductor material and semiconductor layers formed on the semiconductor substrate by a second single crystalline semiconductor material doped with an element which can easily surface segregate. The surface of the semiconductor substrate is formed of a crystalline plane substantially equivalent to a facet plane which is formed on the surface of the second single crystalline semiconductor material if the second single crystalline semiconductor material is epitaxially grown with being doped with the element on a (100) plane of the first single crystalline semiconductor material.
摘要翻译：半导体器件包括由第一单晶半导体材料形成的半导体衬底和通过掺杂有易于表面分离的元件的第二单晶半导体材料形成在半导体衬底上的半导体层。半导体衬底的表面由与第二单晶半导体材料的表面上形成的小平面基本相同的晶面形成，如果第二单晶半导体材料被外延生长，在第 100）平面的第一单晶半导体材料。

5. 发明授权

US4861403A Method of fabricating a double-toothed belt 失效
标题翻译：制造双齿皮带的方法
公开(公告)号：US4861403A
公开(公告)日：1989-08-29
申请号：US102884
申请日：1987-09-30
申请人： Keiichi Yoshimi , Shigeo Goto , Masaaki Asazuma
发明人： Keiichi Yoshimi , Shigeo Goto , Masaaki Asazuma
IPC分类号： B29D29/08 , F16G1/28
CPC分类号： B29D29/08 , F16G1/28
摘要： A method of fabricating a rubber double-toothed belt wherein the unvulcanized rubber thereof is firstly heat treated so as to define a first toothed portion of the belt without substantial vulcanization thereof. The preform is then entrained about pulleys and a pair of heated molds engaged with both the toothed portion and the nontoothed outer portion of the belt to place the preform under pressure at a vulcanization temperature for sufficient time to cause the outer rubber portion of the preform to flow outwardly and define the outer teeth of the final belt concurrently with the vulcanization of the double-toothed belt construction. The parameters for controlling the heat treatment to provide the configurational retention without substantial vulcanization of the preform rubber are disclosed.

6. 发明授权

US4589941A Method of fabricating double-toothed belts 失效
标题翻译：制造双齿皮带的方法
公开(公告)号：US4589941A
公开(公告)日：1986-05-20
申请号：US696631
申请日：1985-01-30
申请人： Toshihiro Tanaka , Keiichi Yoshimi , Shigeo Goto
发明人： Toshihiro Tanaka , Keiichi Yoshimi , Shigeo Goto
IPC分类号： F16G1/28 , B29C43/22 , B29C70/08 , B29C70/46 , B29D29/08 , B29K21/00 , B29K105/10 , B29K105/24 , B32B31/06
CPC分类号： B29C70/083 , B29C43/222 , B29C43/228 , B29C70/462 , B29D29/085 , B29C2059/027
摘要： A method of forming a double timing belt wherein a belt preform is firstly formed with teeth on one face thereof. The opposite face of the belt in which the tensile cord is embedded is provided with oppositely projecting teeth in accurate alignment with the teeth of the preform by a successive molding of pluralities of such teeth to the opposite face, with the preform entrained about a pair of adjustably spaced toothed pulleys. Accurate uniform pitch line difference is maintained by providing shims between the mold and belt support during the molding of the second set of teeth to the preform. The mold and support are retained in accurate alignment by cooperating dowels and recesses on the support and mold members. Cooling devices are provided at opposite ends of the mold for preventing full vulcanization of the tooth rubber thereat.
摘要翻译：一种形成双重同步皮带的方法，其中带状预成型件首先在其一个表面上形成有齿。其中嵌入有拉伸绳的带的相对面设置有相反突出的齿，其通过将多个这种齿连续模制成相对的面而与预成型体的齿准确对准，预成型件夹带在一对可调节间隔的带齿皮带轮。在将第二组牙齿模制到预成型件期间，通过在模具和带支撑件之间提供垫片来保持精确的均匀节距线差异。模具和支撑件通过在支撑件和模具构件上配合榫钉和凹槽保持准确对准。冷却装置设置在模具的相对两端，用于防止在其上完全硫化牙齿橡胶。

7. 发明授权

US6086809A Method of forming a belt/belt sleeve and a belt/belt sleeve made using the method 失效
标题翻译：使用该方法制成皮带/皮带套和带/皮带套的方法
公开(公告)号：US6086809A
公开(公告)日：2000-07-11
申请号：US121485
申请日：1998-07-23
申请人： Shigeo Goto , Yoshiki Matsuura
发明人： Shigeo Goto , Yoshiki Matsuura
IPC分类号： B29D29/08 , B29C35/00
CPC分类号： B29D29/08
摘要： A method of forming a belt/belt sleeve having a length and teeth spaced lengthwise of the belt/belt sleeve. The method includes the steps of providing a cylindrical cloth having a sewn joint; providing a mold having an axis, a circumference, and a plurality of axially extending grooves spaced around the circumference of the mold; extending the cylindrical cloth around the mold; providing a rod; pressing the rod against the cloth at the sewn joint so as to urge the sewn joint into one of the axially extending grooves; separating the rod from the cloth; and forming at least one belt component around the cloth on the mold after the rod is separated from the cloth.
摘要翻译：一种形成带/皮带套筒的方法，该皮带/皮带套筒具有长度和齿距皮带/皮带套筒的长度方向。该方法包括提供具有缝合接头的圆柱形布料的步骤; 提供具有围绕所述模具的圆周间隔开的轴线，圆周和多个轴向延伸的凹槽的模具; 将圆筒布延伸到模具周围; 提供杆; 在缝合接头处将杆压在布上，以将缝合接头推入轴向延伸的一个槽中; 将杆与布分离; 并且在所述杆与所述布分离之后，在所述模具上的所述布周围形成至少一个带组件。

8. 发明授权

US5025751A Solid film growth apparatus 失效
标题翻译：固体膜生长装置
公开(公告)号：US5025751A
公开(公告)日：1991-06-25
申请号：US366185
申请日：1989-06-14
申请人： Shinichiro Takatani , Shigeo Goto , Masahiko Kawata , Kenji Hiruma
发明人： Shinichiro Takatani , Shigeo Goto , Masahiko Kawata , Kenji Hiruma
IPC分类号： C23C16/44 , C23C16/455 , C30B25/02 , C30B25/14
CPC分类号： C23C16/4551 , C30B25/02 , C30B25/14 , C30B29/40 , Y10S148/169
摘要： A solid film forming apparatus, e.g., an MO-MBE (Metal-Organic Molecular Beam Epitaxy) apparatus, wherein evacuatable containers isolated from a growth chamber by a switching device and connected to raw material gas introduction pipings are provided between the growth chamber for a solid film, e.g., a compound semiconductor, and raw material gas introduction pipings. Growth of the solid film is controlled by opening and closing the switching device and evacuating the container at least while the switching device is closed during the growth of the solid film. An undesired influence on the growing film due to residual gas in the containers which are not used for growth can be prevented and, hence, interception and introduction of the raw material gas into the growth chamber can be performed with remarkably high controllability, and films of superior abruptness of the interface between films, e.g., the heterojunction of the compound semiconductor, can be obtained.
摘要翻译：一种固体成膜装置，例如MO-MBE（金属有机分子束外延）装置，其中通过开关装置从生长室隔离并连接到原料气体导入管的可排出容器设置在生长室之间用于固体膜，例如化合物半导体和原料气体导入管。至少在固体膜生长期间开关装置关闭时，通过打开和关闭开关装置并抽出容器来控制固体膜的生长。可以防止由于不用于生长的容器中的残留气体对生长的膜产生不期望的影响，因此可以以非常高的可控性进行原料气体截留和引入生长室，并且可以进行膜的可以获得膜之间的界面的优异的突变性，例如化合物半导体的异质结。

9. 发明授权

US5741360A Method of growing a crystal of a compound semiconductor at a low temperature 失效
标题翻译：在低温下生长化合物半导体的晶体的方法
公开(公告)号：US5741360A
公开(公告)日：1998-04-21
申请号：US514229
申请日：1995-08-11
申请人： Shigeo Goto , Yasuhiko Nomura , Yoshitaka Morishita , Seikoh Yoshida , Masahiro Sasaki
发明人： Shigeo Goto , Yasuhiko Nomura , Yoshitaka Morishita , Seikoh Yoshida , Masahiro Sasaki
IPC分类号： C30B25/02 , H01L21/20 , C30B23/04
CPC分类号： H01L21/02463 , C30B25/02 , C30B29/42 , H01L21/02395 , H01L21/02546 , H01L21/0262 , H01L21/02631 , H01L21/02639 , Y10S117/913
摘要： In a method of selectively growing a crystal of a compound semiconductor layer which is composed of gallium and arsenic, a selective growth is selectively carried out on a substrate by using a combination of metallic gallium and a reactive gas, such as trisdimethylminoarsine, which includes a metallic compound of arsenic specified by at least one amine. The combination may includes organometallic gallium, such as trimethylgallium, triethylgallium instead of the metallic gallium. Such a combination serves to selectively deposit the compound semiconductor layer only on an exposed portion uncovered with a mask. Any other compound semiconductor layer may be selectively deposited on the exposed portion. The exposed portion may be composed of GaAs, AlGaAs, or InGaAs.
摘要翻译：在选择性地生长由镓和砷构成的化合物半导体层的晶体的方法中，通过使用金属镓和反应性气体如三甲基氨基胂的组合，在衬底上选择性地进行选择性生长，所述反应性气体包括由至少一种胺指定的金属砷化合物。该组合可以包括有机金属镓，例如三甲基镓，三乙基镓，而不是金属镓。这种组合用于仅将化合物半导体层选择性地沉积在未被掩模覆盖的暴露部分上。任何其它化合物半导体层可以选择性地沉积在暴露部分上。暴露部分可以由GaAs，AlGaAs或InGaAs组成。

10. 发明授权

US4661171A Method for treating the surface of stainless steel by high temperature oxidation 失效
公开(公告)号：US4661171A
公开(公告)日：1987-04-28
申请号：US768716
申请日：1985-08-23
申请人： Haruji Takahashi , Shigeo Goto , Syuichi Takata , Mitsuaki Shibata , Tomihira Hata
发明人： Haruji Takahashi , Shigeo Goto , Syuichi Takata , Mitsuaki Shibata , Tomihira Hata
IPC分类号： C23C8/02 , C23C8/14 , C23C8/18
CPC分类号： C23C8/14 , C23C8/02
摘要： This disclosure is concerned with a method for treating a stainless steel surface by high temperature oxidation. The surface of a stainless steel article is cleaned. TiO.sub.2 and SiO.sub.2 are mixed in microparticles to form a coating agent, and water is added to the mixture to make a slip. The slip is coated on the steel surface to form a coating having a uniform thickness. The coating is dried and the article is subjected to a heat-treatment to form an oxide film. This treatment is performed in an oxidizing atmosphere for a time and a temperature suitable for the color tone to be produced. A desirable temperature for the heat-treatment is between 350.degree. C. to 700.degree. C. When a coating agent is used, it is later removed by washing, etc. after cooling the article.Further, when less dissolution of iron from the stainless steel surface is required, a decolorization treatment is applied; that is, the colored oxide film is removed from the surface by dissolution using an acid or an electrolytic treatment.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式