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    • 3. 发明授权
    • Process for producing a carbon nanostructure
    • 生产碳纳米结构的方法
    • US09309123B2
    • 2016-04-12
    • US12733771
    • 2008-09-19
    • Takeshi NagasakaMasahiro YamamuraYoshito WatanabeMasaki KondoYoshikazu Nakayama
    • Takeshi NagasakaMasahiro YamamuraYoshito WatanabeMasaki KondoYoshikazu Nakayama
    • C23C16/00C01B31/02B01J23/745B01J35/00B01J37/02B82Y30/00B82Y40/00
    • C01B31/0233B01J23/745B01J35/002B01J37/0215B01J37/0219B82Y30/00B82Y40/00C01B32/162C01B2202/20C01B2202/34
    • This invention provides a method for forming a catalyst layer for carbon nanostructure growth, which can eliminate the influence of water in a liquid for catalyst layer formation, can grow homogeneous and highly oriented carbon nanostructures over the whole area of a substrate and can realize mass production of the carbon nanostructures, and a liquid for catalyst layer formation for use in the method, and a process for producing carbon nanostructures using the catalyst layer formed by the method. The catalyst layer for use in the production of CNTs is formed by preparing a catalyst metal salt solution of a catalyst metal-containing metal compound (a catalyst metal salt) dispersed or dissolved in a solvent having an ample wettability towards the substrate and coating the catalyst metal salt solution onto the substrate to a form a thin film. The thin film is then heat treated to form a catalyst layer. The substrate with the dried catalyst layer formed thereon is introduced into a carbon nanostructure synthetic device, and CNTs are grown by a thermal CVD method.
    • 本发明提供一种用于形成碳纳米结构生长催化剂层的方法,其可以消除用于催化剂层形成的液体中的水的影响,可以在基材的整个区域上生长均匀且高度取向的碳纳米结构,并且可以实现批量生产 的碳纳米结构体,以及用于该方法的催化剂层形成用液体,以及使用该方法形成的催化剂层制造碳纳米结构体的方法。 用于生产CNT的催化剂层是通过制备分散或溶解在具有充分润湿性的溶剂中的含催化剂金属的金属化合物(催化剂金属盐)的催化剂金属盐溶液形成于底物上并涂覆催化剂 金属盐溶液形成薄膜。 然后将该薄膜热处理以形成催化剂层。 将其上形成有干燥催化剂层的基板引入碳纳米结构合成装置中,并通过热CVD法生长CNT。
    • 7. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US06864559B2
    • 2005-03-08
    • US10377717
    • 2003-03-04
    • Shinji NakazatoHideaki UchidaYoshikazu SaitoMasahiro YamamuraYutaka KobayashiTakahide IkedaRyoichi HoriGoro KitsukawaKiyoo ItohNobuo TanbaTakao WatanabeKatsuhiro ShimohigashiNoriyuki Homma
    • Shinji NakazatoHideaki UchidaYoshikazu SaitoMasahiro YamamuraYutaka KobayashiTakahide IkedaRyoichi HoriGoro KitsukawaKiyoo ItohNobuo TanbaTakao WatanabeKatsuhiro ShimohigashiNoriyuki Homma
    • H01L27/02H01L27/06H01L27/092H01L27/105H01L27/108H01L29/00
    • H01L27/0623H01L27/0214H01L27/0218H01L27/0922H01L27/105H01L27/10805
    • Disclosed is a semiconductor device, such as a semiconductor memory device, having structure wherein invasion of minority carriers from the semiconductor substrate into components of the device, formed on the substrate, can be avoided. The semiconductor memory device can be an SRAM or DRAM, for example, and includes a memory array and peripheral circuit on a substrate. In one aspect of the present invention, a buried layer of the same conductivity type as that of the substrate, but with a higher impurity concentration than that of the substrate, is provided beneath at least one of the peripheral circuit and memory array. A further region can extend from the buried layer, for example, to the surface of the semiconductor substrate, the buried layer and further region in combination acting as a shield to prevent minority carriers from penetrating to the device elements. As a second aspect of the present invention, first carrier absorbing areas (to absorb minority carriers) are located between the memory array and the switching circuit of the peripheral circuit, and second carrier absorbing areas are provided to surround input protective elements of the device. As a third embodiment of the present invention, a plurality of isolation regions of the same conductivity type are provided, with unequal voltages applied to these isolation regions, or unequal voltages applied to the substrate, on the one hand, and to these isolation regions, on the other.
    • 公开了一种半导体器件,例如半导体存储器件,其结构可以避免少数载流子从半导体衬底侵入形成在衬底上的器件的部件。 半导体存储器件例如可以是SRAM或DRAM,并且在衬底上包括存储器阵列和外围电路。 在本发明的一个方面中,在外围电路和存储器阵列中的至少一个之下提供与衬底相同的导电类型但具有比衬底的杂质浓度更高的杂质浓度的掩埋层。 另外的区域可以例如从掩埋层延伸到半导体衬底的表面,掩埋层和组合的另外的区域用作屏蔽以防止少数载流子穿透到器件元件。 作为本发明的第二方面,第一载流子吸收区域(以吸收少数载流子)位于存储器阵列和外围电路的开关电路之间,并且第二载流子吸收区域被设置为环绕该器件的输入保护元件。 作为本发明的第三实施例,提供了相同导电类型的多个隔离区域,一方面施加到这些隔离区域的不同电压或施加到基板的不同电压以及这些隔离区域, 在另一。
    • 9. 发明授权
    • Differential amplifier
    • 差分放大器
    • US4059808A
    • 1977-11-22
    • US708046
    • 1976-07-23
    • Yoshio SakamotoMasahiro Yamamura
    • Yoshio SakamotoMasahiro Yamamura
    • H03F3/30H03F3/45H03G3/10
    • H03F3/45479H03F3/3071H03F3/45H03F2203/45094
    • In a semiconductor differential amplifier comprising a differential pair of npn transistors having the emitters connected to the emitter of lateral transistors, the bases supplied with an input signal, and the collectors connected in common to one terminal of the voltage source so as to derive the output signal from the collector of the lateral transistor, the emitter voltage of each of the differential pair transistors is applied to the common base of the pnp lateral transistors through a constant voltage element consisting of a transistor or a diode. Therefore, the voltage applied between the base and the substrate of the lateral transistor is reduced and hence the tolerance to the reverse breakdown voltage is increased and simplification of the circuit structure becomes possible. Further, a sink current path is provided between the base of the pnp lateral transistor and the other terminal of the voltage source to allow a stabilized bias current to flow through the differential amplifier.
    • 在包括具有连接到横向晶体管的发射极的发射极的npn晶体管的差分对的半导体差分放大器中,基极被提供有输入信号,并且集电极共同连接到电压源的一个端子,以便导出输出 来自横向晶体管的集电极的信号,通过由晶体管或二极管组成的恒定电压元件将差分对晶体管的发射极电压施加到pnp横向晶体管的公共基极。 因此,施加在横向晶体管的基极和基板之间的电压降低,因此提高了对反向击穿电压的容限,并且可以简化电路结构。 此外,在pnp横向晶体管的基极和电压源的另一个端子之间设置一个电流通路,以允许稳定的偏置电流流过差分放大器。