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    • 2. 发明授权
    • Capacitor for semiconductor integrated circuit
    • 半导体集成电路电容器
    • US5745336A
    • 1998-04-28
    • US417839
    • 1995-04-06
    • Katsuaki SaitoMichio OhueTakuya FukudaJaiHo ChoiYukinobu Miyamoto
    • Katsuaki SaitoMichio OhueTakuya FukudaJaiHo ChoiYukinobu Miyamoto
    • H01G7/06H01L21/02H01L27/115H01G4/06
    • H01L27/11502H01G7/06H01L28/55
    • A semiconductor integrated circuit apparatus according to the present invention has a capacitor formed in such a manner that a ferroelectric thin film is formed after a MOS transistor has been formed on a substrate thereof, a ferroelectric thin film made of, for example, PbZrTiO.sub.3 or SrTiO.sub.3 or the like is formed into a columnar shape to form electrodes positioned in direct contact with the side wall portions of said columnar ferroelectric thin film and the top portion is removed. As a result, a fact that an oxide of each electrode, which deteriorates the relative permittivity, is formed on the interface between the electrode and the ferroelectric material is prevented, and a large capacity can be realized with respect to the area of the substrate because the ferroelectric thin film is formed into the columnar and elongated shape, resulting in that the capacitance of the capacitor is not reduced in which the electrodes and the oxide dielectric material having a high permittivity are, in series, connected to each other. The capacitor is formed into a DRAM or an FRAM memory cell so as to realize a semiconductor memory revealing a high degree of integration and a high processing speed.
    • 根据本发明的半导体集成电路装置具有电容器,其形成为在其基板上形成MOS晶体管之后形成铁电薄膜,由例如PbZrTiO 3或SrTiO 3制成的铁电薄膜 或类似物形成为柱状,以形成与所述柱状铁电薄膜的侧壁部分直接接触的电极,并且去除顶部部分。 结果,防止了在电极和铁电材料之间的界面上形成各种电极的氧化物,导致相对介电常数下降的事实,因此能够相对于基板的面积实现大容量,因为 铁电薄膜形成为柱状和细长形状,导致电容器的电容不降低,其中具有高介电常数的电极和氧化物介电材料串联连接。 电容器形成为DRAM或FRAM存储单元,以实现显示高集成度和高​​处理速度的半导体存储器。
    • 4. 发明授权
    • Capacitor for semiconductor integrated circuit and method of
manufacturing the same
    • 半导体集成电路用电容器及其制造方法
    • US5434742A
    • 1995-07-18
    • US995977
    • 1992-12-23
    • Katsuaki SaitoMichio OhueTakuya FukudaJaiHo ChoiYukinobu Miyamoto
    • Katsuaki SaitoMichio OhueTakuya FukudaJaiHo ChoiYukinobu Miyamoto
    • H01G7/06H01L21/02H01L27/115H01G4/008H01G4/12
    • H01L27/11502H01G7/06H01L28/55
    • A semiconductor integrated circuit apparatus according to the present invention has a capacitor formed in such a manner that a ferroelectric thin film is formed after a MOS transistor has been formed on a substrate thereof, a ferroelectric thin film made of, for example, PbZrTiO.sub.3 or SrTiO.sub.3 or the like is formed into a columnar shape to form electrodes positioned in direct contact with the side wall portions of said columnar ferroelectric thin film, and the top portion is removed. As a result, a fact that an oxide of each electrode, which deteriorates the relative permittivity, is formed on the interface between the electrode and the ferroelectric material is prevented, and a large capacity can be realized with respect to the area of the substrate because the ferroelectric thin film is formed into the columnar and elongated shape, resulting in that the capacitance of the capacitor is not reduced in which the electrodes and the oxide dielectric material having a high permittivity are, in series, connected to each other.The capacitor is formed into a DRAM or an FRAM memory cell so as to realize a semiconductor memory revealing a high degree of integration and a high processing speed.
    • 根据本发明的半导体集成电路装置具有电容器,其形成为在其基板上形成MOS晶体管之后形成铁电薄膜,由例如PbZrTiO 3或SrTiO 3制成的铁电薄膜 或类似物形成为柱状,以形成与所述柱状铁电薄膜的侧壁部直接接触的电极,并且去除顶部。 结果,防止了在电极和铁电材料之间的界面上形成各种电极的氧化物,导致相对介电常数下降的事实,因此能够相对于基板的面积实现大容量,因为 铁电薄膜形成为柱状和细长形状,导致电容器的电容不降低,其中具有高介电常数的电极和氧化物介电材料串联连接。 电容器形成为DRAM或FRAM存储单元,以实现显示高集成度和高​​处理速度的半导体存储器。
    • 6. 发明授权
    • Microwave-excited plasma processing apparatus
    • 微波激发等离子体处理装置
    • US5162633A
    • 1992-11-10
    • US372716
    • 1989-06-27
    • Tadasi SonobeKazuo SuzukiTakuya FukudaMichio Ohue
    • Tadasi SonobeKazuo SuzukiTakuya FukudaMichio Ohue
    • C23C14/34C23C16/511C23F4/00H01J37/32H01L21/205H01L21/302H01L21/3065H01L21/31H05B6/80
    • H01J37/32678H01J37/32192H01J37/32238H01J37/32697H05B6/80
    • The present invention relates to a plasma treatment apparatus for making plasma surface processing of a specimen such as thin-film formation, etching, sputtering or plasma oxidation by use of plasma produced through microwave discharge. In a specimen chamber provided with a specimen table for holding at least one specimen thereon, a microwave is introduced from a direction intersecting a magnetic line of force so as to propagate in the longitudinal direction of an ECR region or in a direction along the plane of the ECR region. Since the microwave is introduced from the transverse direction of the specimen chamber, the provision of a microwave introducing window at an upper portion of the specimen chamber is not required and hence a counter electrode for applying an electric field to the specimen can be disposed at the upper portion of the specimen chamber, thereby making it possible to apply a uniform electric field to the specimen so that the specimen is subjected to a uniform treatment.
    • 本发明涉及一种等离子体处理装置,其用于通过使用通过微波放电产生的等离子体来进行诸如薄膜形成,蚀刻,溅射或等离子体氧化等试样的等离子体表面处理。 在设置有用于保持至少一个样本的样本台的样本室中,从与磁力线相交的方向引入微波,以沿ECR区域的纵向方向或沿着ECR区域的平面的方向传播微波 ECR地区。 由于微波从试样室的横向导入,因此不需要在试样室的上部设置微波导入窗,因此可以在试样室的上部设置用于向试样施加电场的对电极 从而能够对试样施加均匀的电场,使样品经受均匀的处理。
    • 10. 发明授权
    • Microwave plasma processing apparatus
    • 微波等离子体处理装置
    • US5243259A
    • 1993-09-07
    • US798901
    • 1991-11-27
    • Junji SatoKazuo SuzukiShunichi HiroseTakuya FukudaSatoru Todoroki
    • Junji SatoKazuo SuzukiShunichi HiroseTakuya FukudaSatoru Todoroki
    • H01L21/302H01J37/32H01L21/205H01L21/3065
    • H01J37/32834H01J37/32192H01J37/32458H01J37/32678
    • The present invention relates to a microwave plasma processing apparatus for processing such as thin film formation, etching, sputtering, and plasma oxidation, etc., on a surface of a processing object by utilizing a high density plasma generated by electron cyclotron resonance. A vacuum vessel of the apparatus, in which a microwave transmitted by a microwave guide is utilized for converting gas supplied to the vacuum vessel to plasma for the plasma processing of the processing object placed in the vacuum vessel, is formed in, such manner that the interior space of the vacuum vessel extends beyond the outer periphery of magnetic field generating coils, and the extended portion of the vessel is provided with a gas outlet for connection with an evacuation apparatus to evacuate the interior of the vacuum vessel to a desired vacuum degree. Accordingly, preferable evacuating characteristics can be obtained even in a case when a large amount of the reaction gas is supplied to the vacuum vessel in order to process a large size processing object, because the vacuum vessel in which the processing object is placed can be connected with the evacuation apparatus through a space and the same effect as if the evacuation apparatus is directly connected with the vacuum vessel is realized.
    • 微波等离子体处理装置技术领域本发明涉及利用电子回旋共振产生的高密度等离子体,在加工对象的表面上进行薄膜形成,蚀刻,溅射,等离子体氧化等处理的微波等离子体处理装置。 该装置的真空容器用微波导流器传输的微波用于将供给真空容器的气体转化为等离子体,用于放置在真空容器中的处理物体的等离子体处理,使得 真空容器的内部空间延伸超过磁场产生线圈的外周,并且容器的延伸部分设置有气体出口,用于与排气装置连接以将真空容器的内部抽空至期望的真空度。 因此,即使在将大量的反应气体供给到真空容器中以处理大型加工对象的情况下也可以获得优选的排气特性,因为可以连接处理对象物的真空容器 通过空间排出装置,实现与抽真空装置直接与真空容器连接的效果相同的效果。