公开(公告)号：US06472296B2

公开(公告)日：2002-10-29

申请号：US09912343

申请日：2001-07-26

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Akira Sakai ,  Tadashi Sawayama ,  Yuzo Koda ,  Takahiro Yajima

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Akira Sakai ,  Tadashi Sawayama ,  Yuzo Koda ,  Takahiro Yajima

IPC分类号： H01L2120

CPC分类号： C23C16/509 ,  H01J37/32082 ,  H01J37/32706 ,  H01L21/02425 ,  H01L21/02529 ,  H01L21/02532 ,  H01L21/02576 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/02661 ,  H01L31/1824 ,  H01L31/202 ,  H01L31/204 ,  H01L31/206 ,  Y02E10/545 ,  Y02P70/521

摘要： A process for producing a semiconductor layer by introducing a raw gas into a discharge chamber and supplying high-frequency power to the chamber to decompose the raw gas by discharge, thereby forming a semiconductor layer on a substrate within the discharge chamber, the process comprising the steps of supplying high-frequency power of at least very high frequency (VHF) as the high-frequency power; supplying bias power of direct current power and/or high-frequency power of radio-frequency (RF) together with the high-frequency power of VHF to the discharge chamber; and controlling a direct current component of an electric current flowing into an electrode, to which the bias power is supplied, so as to fall within a range of from 0.1 A/m2 to 10 A/m2 in terms of a current density based on the area of an inner wall of the discharge chamber. A good-quality semiconductor layer can be deposited over a large area at a high speed.

摘要翻译： 一种制造半导体层的方法，该方法是通过将原料气体引入放电室并向室内供给高频电力，以通过放电来分解原料气体，由此在放电室内的基板上形成半导体层，该方法包括 提供至少非常高频（VHF）的高频功率作为高频功率的步骤; 将直流电力和/或射频（RF）的高频功率与VHF的高频功率一起提供给放电室; 并且以电流密度为基础控制流入施加偏压功率的电极的电流的直流分量，以0.1A / m 2至10A / m 2的范围内 放电室内壁面积。 高质量的半导体层可以在大面积上高速沉积。

公开(公告)号：US06495392B2

公开(公告)日：2002-12-17

申请号：US09911172

申请日：2001-07-23

申请人： Akira Sakai ,  Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Tadashi Sawayama ,  Yuzo Koda ,  Takahiro Yajima

发明人： Akira Sakai ,  Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Tadashi Sawayama ,  Yuzo Koda ,  Takahiro Yajima

IPC分类号： H01L2100

CPC分类号： H01L31/075 ,  H01L31/056 ,  H01L31/202 ,  H01L31/204 ,  H01L31/206 ,  Y02E10/52 ,  Y02E10/548 ,  Y02P70/521

摘要： A process for producing a semiconductor device such as a photovoltaic element including a solar cell or a photosensor having a photoelectric conversion semiconductor layer formed by sequentially forming a p-type or n-type semiconductor layer composed of a non-single crystalline silicon series semiconductor material, an i-type semiconductor layer composed of a non-single crystalline silicon series semiconductor material, and an n-type or p-type semiconductor layer composed of a non-single crystalline silicon series semiconductor material on a substrate by means of plasma CVD, characterized in that at least one i-type semiconductor as said i-type semiconductor layer is formed in a discharge chamber having a cathode electrode by means of VHF plasma CVD using a silicon-containing raw material gas, wherein a VHF power of a wattage which is two times or less that of a VHF power required for decomposing 100% of said silicon-containing raw material gas is applied to said cathode electrode.

摘要翻译： 一种用于制造半导体器件的方法，诸如包括太阳能电池的光电元件或具有光电转换半导体层的光电传感器的光电元件，其顺序地形成由非单晶硅系列半导体材料构成的p型或n型半导体层 由非单晶硅系列半导体材料构成的i型半导体层和由等离子体CVD在基板上的非单晶硅系半导体材料构成的n型或p型半导体层， 其特征在于，通过使用含硅原料气体的VHF等离子体CVD，在具有阴极的放电室中形成至少一个作为所述i型半导体层的i型半导体，其中，功率的VHF功率 是分解100％的所述含硅原料气体所需的VHF功率的两倍或更少被施加到所述阴极。

公开(公告)号：US06287943B1

公开(公告)日：2001-09-11

申请号：US09363825

申请日：1999-07-30

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Akira Sakai ,  Tadashi Sawayama ,  Yuzo Koda ,  Takahiro Yajima

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Akira Sakai ,  Tadashi Sawayama ,  Yuzo Koda ,  Takahiro Yajima

IPC分类号： H01L2120

CPC分类号： C23C16/509 ,  H01J37/32082 ,  H01J37/32706 ,  H01L21/02425 ,  H01L21/02529 ,  H01L21/02532 ,  H01L21/02576 ,  H01L21/02579 ,  H01L21/0262 ,  H01L21/02661 ,  H01L31/1824 ,  H01L31/202 ,  H01L31/204 ,  H01L31/206 ,  Y02E10/545 ,  Y02P70/521

摘要： The invention provides a process for producing a semiconductor layer by introducing a raw gas into a discharge chamber and supplying high-frequency power to the chamber to decompose the raw gas by discharge, thereby forming a semiconductor layer on a substrate within the discharge chamber, the process comprising the steps of supplying high-frequency power of at least very high frequency (VHF) as the high-frequency power; supplying bias power of direct current power and/or high-frequency power of radio-frequency (RF) together with the high-frequency power of VHF to the discharge chamber; and controlling a direct current component of an electric current flowing into an electrode, to which the bias power is supplied, so as to fall within a range of from 0.1 A/m2 to 10 A/m2 in terms of a current density based on the area of an inner wall of the discharge chamber. A good-quality semiconductor layer can be deposited over a large area at a high speed.

摘要翻译： 本发明提供一种通过将原料气体引入放电室并向室内供给高频电力以通过放电分解原料气体从而在放电室内的基板上形成半导体层来制造半导体层的方法， 过程包括以下步骤：提供至少非常高频（VHF）的高频功率作为高频功率; 将直流电力和/或射频（RF）的高频功率与VHF的高频功率一起提供给放电室; 并且以电流密度为基础控制流入施加偏压功率的电极的电流的直流分量，以0.1A / m 2至10A / m 2的范围内 放电室内壁面积。 高质量的半导体层可以在大面积上高速沉积。

公开(公告)号：US5919310A

公开(公告)日：1999-07-06

申请号：US610076

申请日：1996-02-29

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Takehito Yoshino ,  Akira Sakai ,  Tadashi Hori

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Takehito Yoshino ,  Akira Sakai ,  Tadashi Hori

IPC分类号： C23C16/54 ,  C23C16/00

CPC分类号： C23C16/545

摘要： A continuous film-forming apparatus includes a plurality of reaction chambers each capable of forming a semiconductor film with a different chemical composition. The reaction chambers are arranged such that a substrate web on which a film is to be formed can be hermetically moved through each of the reaction chambers under a vacuum condition. A gas gate is disposed at a central position between each pair of adjacent reaction chambers, with each gas gate provided with a slit for communication between the adjacent reaction chambers. The slit is provided with a clearance which allows the substrate web to move therethrough, is structured such that gate gas can be introduced therein from above and beneath the substrate which is moved through the clearance, and is dimensioned such that opposite sides proximate to the position where the gate gas is introduced have different heights in accordance with the inner pressure upon film formation of each of the adjacent reaction chambers in communication with each other by the slit.

摘要翻译： 连续成膜装置包括能够形成化学成分不同的半导体膜的多个反应室。 反应室被布置成使得在其上形成膜的基材网可以在真空条件下气密地移动通过每个反应室。 气门设置在每对相邻反应室之间的中心位置处，每个气门设置有用于在相邻反应室之间连通的狭缝。 狭缝设置有允许衬底腹板通过其移动的间隙，其结构使得可以从移动通过间隙的衬底的上方和下方将栅极气体引入其中，并且其尺寸使得接近位置的相对侧 其中引入的栅极气体根据通过狭缝彼此连通的每个相邻反应室的成膜时的内部压力具有不同的高度。

公开(公告)号：US5720826A

公开(公告)日：1998-02-24

申请号：US657066

申请日：1996-05-29

申请人： Ryo Hayashi ,  Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Jinsho Matsuyama ,  Akira Sakai ,  Yuzo Koda ,  Tadashi Hori ,  Takahiro Yajima

发明人： Ryo Hayashi ,  Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Jinsho Matsuyama ,  Akira Sakai ,  Yuzo Koda ,  Tadashi Hori ,  Takahiro Yajima

IPC分类号： H01L31/04 ,  H01L31/0392 ,  H01L31/075 ,  H01L31/20

CPC分类号： H01L31/076 ,  H01L31/03921 ,  H01L31/202 ,  H01L31/204 ,  H01L31/206 ,  Y02E10/548 ,  Y02P70/521

摘要： Provided are a photovoltaic element suitable for practical use, low in cost, high in reliability, and high in photoelectric conversion efficiency, and a fabrication process thereof. In the photovoltaic element having stacked layers of non-single-crystal semiconductors, at least an i-type semiconductor layer and a second conductivity type semiconductor layer are stacked on a first conductivity type semiconductor layer, and the second conduction type semiconductor layer has a layer A formed by exposing the surface of the i-type semiconductor layer to a plasma containing a valence electron controlling agent and a layer B deposited on the layer A by a CVD process using at least the valence electron controlling agent and the main constituent elements of the i-type semiconductor layer.

摘要翻译： 提供适用于实际使用，成本低，可靠性高，光电转换效率高的光电元件及其制造方法。 在具有非单晶半导体层叠的光电元件中，在第一导电型半导体层上层叠至少i型半导体层和第二导电型半导体层，第二导电型半导体层具有层 A通过使用至少化合价电子控制剂和主要构成元素的CVD工艺将i型半导体层的表面暴露于含有价电子控制剂和沉积在层A上的层B的等离子体 i型半导体层。

公开(公告)号：US5589007A

公开(公告)日：1996-12-31

申请号：US523169

申请日：1995-09-05

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Hideo Tamura ,  Atsushi Yasuno ,  Akira Sakai ,  Tadashi Hori

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Hideo Tamura ,  Atsushi Yasuno ,  Akira Sakai ,  Tadashi Hori

IPC分类号： H01L21/205 ,  H01L31/075 ,  H01L31/20

CPC分类号： H01L31/076 ,  H01L21/02381 ,  H01L21/0245 ,  H01L21/02505 ,  H01L21/02532 ,  H01L21/0262 ,  H01L31/075 ,  H01L31/202 ,  H01L31/204 ,  H01L31/206 ,  Y02E10/548 ,  Y02P70/521

摘要： A photovoltaic element comprises a first non-monocrystalline silicon-containing semiconductor layer of a first-conductivity type, a first i-type non-monocrystalline silicon-containing semiconductor layer formed by microwave plasma CVD, a second i-type non-monocrystalline silicon-containing semiconductor layer formed by high-frequency plasma CVD, and a second non-monocrystalline silicon-containing semiconductor layer of a conductivity type opposite to the first-conductivity type, wherein the second semiconductor layer is formed by plasma doping.

摘要翻译： 光电元件包括​​第一导电类型的第一非单晶硅含硅半导体层，通过微波等离子体CVD形成的第一i型非单晶含硅半导体层，第二i型非单晶硅含硅半导体层， 通过高频等离子体CVD形成的含硅半导体层和与第一导电型相反的导电类型的第二非单晶硅含量半导体层，其中通过等离子体掺杂形成第二半导体层。

公开(公告)号：US5946587A

公开(公告)日：1999-08-31

申请号：US741352

申请日：1996-10-29

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Takehito Yoshino ,  Akira Sakai ,  Tadashi Hori

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Takehito Yoshino ,  Akira Sakai ,  Tadashi Hori

IPC分类号： C23C14/56 ,  C23C16/54 ,  H01L31/20 ,  C23C16/00

CPC分类号： H01L31/206 ,  C23C14/562 ,  C23C14/568 ,  C23C16/545 ,  H01L31/202 ,  Y02E10/50 ,  Y02P70/521

摘要： The present invention aims to provide a continuous forming method and apparatus for functional deposited films having excellent characteristics while preventing any mutual mixture of gases between film forming chambers having different pressures, wherein each of semiconductor layers of desired conduction type is deposited on a strip-like substrate within a plurality of film forming chambers, by plasma CVD, while the strip-like substrate is being moved continuously in a longitudinal direction thereof through the plurality of film forming chambers connected via a gas gate having the structure of introducing a scavenging gas into a slit-like separation passage, characterized in that at least one of the gas gates connecting the i-type layer film forming chamber for forming the semiconductor junction and the n- or p-type layer film forming chamber having higher pressure than the i-type layer film forming chamber has the scavenging gas introducing position disposed on the n- or p-type layer film forming chamber side off the center of the separation chamber of the gas gate.

摘要翻译： 本发明的目的在于提供一种具有优异特性的功能性沉积膜的连续成型方法和装置，同时防止在具有不同压力的成膜室之间的气体之间的任何相互混合，其中期望的导电类型的每个半导体层沉积在带状 通过等离子体CVD在多个成膜室内的基板，同时带状基板沿着其长度方向连续移动通过多个成膜室，该多个成膜室通过具有引入清除气体的结构的气门连接到 狭缝状分离通道，其特征在于，连接形成半导体结的i型层成膜室和n型或p型层成膜室中的至少一个具有比i型 层成膜室具有设置在n型或p型层上的清除气体导入位置 成膜室一侧离开气门分离室的中心。

公开(公告)号：US5769963A

公开(公告)日：1998-06-23

申请号：US697783

申请日：1996-08-30

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Akira Sakai ,  Yuzo Koda ,  Tadashi Hori ,  Tomonori Nishimoto ,  Takahiro Yajima

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Akira Sakai ,  Yuzo Koda ,  Tadashi Hori ,  Tomonori Nishimoto ,  Takahiro Yajima

IPC分类号： H01L31/0368 ,  H01L31/075 ,  H01L31/20 ,  H01L31/0352

CPC分类号： H01L31/076 ,  H01L31/03682 ,  H01L31/075 ,  H01L31/206 ,  Y02E10/546 ,  Y02E10/548 ,  Y02P70/521

摘要： A photovoltaic device comprises a semiconductor region having at least one set of semiconductor layers comprised of a first semiconductor layer having a first conductivity type, an intrinsic or substantially intrinsic second semiconductor layer, and a third semiconductor layer having a conductivity type opposite to that of the first conductivity type, the layers being formed in this order, and first and second electrodes provided such that the electrodes interpose the semiconductor region; wherein the density of a dopant impurity determining the conductivity type of the first semiconductor layer in a set of semiconductor layers which is in contact with the first electrode is varied so as to be lower on the side of the first electrode, or the grain size of crystals in the first semiconductor layer is varied so as to be smaller on the side of the first electrode. This provides a photovoltaic device that does not exhibit great lowering of characteristics even when short circuits locally occur in the semiconductor layers during long-term service.

摘要翻译： 一种光电器件包括具有至少一组半导体层的半导体区域，该组半导体层由具有第一导电类型的第一半导体层，本征的或基本上本征的第二半导体层组成，以及具有与第 第一导电类型，这些层依次形成，第一和第二电极设置成使得电极插入半导体区域; 其中确定与第一电极接触的一组半导体层中的第一半导体层的导电类型的掺杂剂杂质的密度在第一电极的侧面变化，或者在第一电极的一侧的晶粒尺寸 第一半导体层中的晶体在第一电极侧变化较小。 这提供了即使在长期服务期间在半导体层中局部出现短路的情况下也不会出现特性的降低的光电器件。

公开(公告)号：US5968274A

公开(公告)日：1999-10-19

申请号：US754066

申请日：1996-11-20

申请人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Takehito Yoshino ,  Akira Sakai ,  Tadashi Hori

发明人： Yasushi Fujioka ,  Shotaro Okabe ,  Masahiro Kanai ,  Takehito Yoshino ,  Akira Sakai ,  Tadashi Hori

IPC分类号： C23C14/56 ,  C23C16/54 ,  H01L31/20

CPC分类号： H01L31/206 ,  C23C14/562 ,  C23C14/568 ,  C23C16/545 ,  H01L31/202 ,  Y02E10/50 ,  Y02P70/521

摘要： The present invention aims to provide a continuous forming method and apparatus for functional deposited films having excellent characteristics while preventing any mutual mixture of gases between film forming chambers having different pressures, wherein semiconductor layers of desired conductivity type are deposited on a strip-like substrate within a plurality of film forming chambers, by plasma CVD, while the strip-like substrate is moved continuously in a longitudinal direction thereof through the plurality of film forming chambers connected via gas gates having means for introducing a scavenging gas into a slit-like separation passage, characterized in that at least one of the gas gates connecting the i-type layer film forming chamber for forming the semiconductor junction and the n- or p-type layer film forming chamber having higher pressure than the i-type layer film forming chamber has the scavenging gas introducing position disposed on the n- or p-type layer film forming chamber side off from the center of the separation chamber of the gas gate.

摘要翻译： 本发明的目的在于提供具有优异特性的功能性沉积膜的连续成型方法和装置，同时防止在具有不同压力的成膜室之间任何相互混合的气体，其中期望的导电类型的半导体层沉积在带状衬底上 多个成膜室，通过等离子体CVD，同时带状基板沿其长度方向连续移动通过多个通过气门连接的成膜室，其具有用于将清除气体引入狭缝状分离通道 其特征在于，连接形成半导体结的i型层成膜室和i型层成膜室的n型或p型层成膜室中的至少一个气门具有比i型层成膜室高的压力 所述清除气体导入位置设置在形成有n型或p型层的膜上 r侧从气门的分离室的中心离开。

公开(公告)号：US5284525A

公开(公告)日：1994-02-08

申请号：US806347

申请日：1991-12-13

申请人： Keishi Saito ,  Tatsuyuki Aoike ,  Yasushi Fujioka ,  Mitsuyuki Niwa ,  Toshimitsu Kariya ,  Yuzo Kohda

发明人： Keishi Saito ,  Tatsuyuki Aoike ,  Yasushi Fujioka ,  Mitsuyuki Niwa ,  Toshimitsu Kariya ,  Yuzo Kohda

IPC分类号： H01L31/0236 ,  H01L31/0392 ,  H01L31/075

CPC分类号： H01L31/03921 ,  H01L31/0236 ,  H01L31/075 ,  Y02E10/548

摘要： A solar cell comprising a conductive substrate and semiconductor layers laminated on the conductive substrate, said laminate comprising a p-type layer composed of a non-single crystal Si material, an i-type layer serving as an active layer and an n-type layer, wherein a diamond layer having an uneven surface and containing a valence electron controlling agent is interposed between the conductive substrate and the semiconductor layers.

摘要翻译： 一种太阳能电池，包括导电基板和层叠在导电基板上的半导体层，所述层压体包括由非单晶Si材料构成的p型层，用作有源层的i型层和n型层 其中具有不平坦表面并含有价电子控制剂的金刚石层插入在导电基板和半导体层之间。