Semiconductor memory device
    51.
    发明授权
    Semiconductor memory device 失效
    半导体存储器件

    公开(公告)号:US5087956A

    公开(公告)日:1992-02-11

    申请号:US358261

    申请日:1989-05-30

    摘要: An SRAM including a memory cell having a high-resistance load element. The load element is formed from a polysilicon film, and an impurity is introduced into at least a part of the polysilicon film for the purpose of increasing the threshold voltage of a parasitic MISFET formed using the load element as its channel region. Alternatively, the deposition of the polysilicon film is carried out at a relatively high temperature, thereby preventing any increase in the current flowing through the load element, and thus reducing the power dissipation in the SRAM.

    摘要翻译: 包括具有高电阻负载元件的存储单元的SRAM。 负载元件由多晶硅膜形成,并且为了增加使用负载元件形成的寄生MISFET的阈值电压作为其沟道区,将杂质引入到多晶硅膜的至少一部分中。 或者,多晶硅膜的沉积在相对高的温度下进行,从而防止流过负载元件的电流的任何增加,从而降低SRAM中的功率消耗。

    Semiconductor memory devices having stacked polycrystalline silicon
transistors
    53.
    发明授权
    Semiconductor memory devices having stacked polycrystalline silicon transistors 失效
    具有堆叠多晶硅晶体管的半导体存储器件

    公开(公告)号:US5034797A

    公开(公告)日:1991-07-23

    申请号:US497182

    申请日:1990-03-22

    摘要: A semiconductor device having a CMIS structure for forming a static random access memory is disclosed which device can increase the packing density of the memory and reduce the stand-by power thereof. In this semiconductor device, a first MISFET of a first conductivity type is formed on and a substrate, a second MISFET of a second conductivity type is formed over the first MISFET with a first insulating film therebetween to form a stacked CMIS structure. The second MISFET is made up of a first conductive film, a second insulating film and a second conductive film, with the source, drain and channel regions of the second MISFET being formed in the first conductive film. A first resistive drain region is formed between the channel and drain regions of the first conductive film so that an impurity of the second conductivity type is contained in the first resistive drain region at a lower concentration than in the drain region, or the first resistive drain region is substantially undoped. The first resistive drain region is disposed over the gate electrode of the first MISFET, and the gate insulating film and gate electrode of the second MISFET are formed of the second insulating film and the second conductive film, respectively. In a case where a semiconductor memory device having a static random access memory cell which is provided with a flip-flop circuit of the stacked CMIS type, is formed, a pair of first MISFET's and a pair of third MISFET's of the first conductivity type are formed on the substrate, and the second MISFET is formed on one MISFET of the first MISFET's and the third MISFET's.

    摘要翻译: 公开了具有用于形成静态随机存取存储器的CMIS结构的半导体器件,其可以增加存储器的堆积密度并降低其待机功率。 在该半导体器件中,在基板上形成第一导电型的第一MISFET,在第一MISFET上形成第二导电类型的第二MISFET,其间具有第一绝缘膜,以形成层叠的CMIS结构。 第二MISFET由第一导电膜,第二绝缘膜和第二导电膜构成,第二MISFET的源极,漏极和沟道区形成在第一导电膜中。 在第一导电膜的沟道和漏极区之间形成第一电阻漏极区,使得第一导电类型的杂质以比漏极区域低的浓度包含在第一电阻漏极区域中,或者第一电阻漏极 区域基本上未掺杂。 第一电阻漏极区域设置在第一MISFET的栅电极之上,并且第二MISFET的栅极绝缘膜和栅极电极分别由第二绝缘膜和第二导电膜形成。 在具有设置有层叠CMIS型触发电路的静态随机存取存储单元的半导体存储器件的情况下,形成一对第一MISFET和第一导电类型的一对第三MISFET 并且第一MISFET形成在第一MISFET和第三MISFET的一个MISFET上。

    Semiconductor memory cell device with thick insulative layer
    55.
    发明授权
    Semiconductor memory cell device with thick insulative layer 失效
    具有厚绝缘层的半导体存储单元器件

    公开(公告)号:US4890148A

    公开(公告)日:1989-12-26

    申请号:US218486

    申请日:1988-07-07

    摘要: A static RAM exhibiting a high reliability and suited to a higher density of integration is disclosed. In each memory cell of this static RAM, the cross coupling of a flip-flop circuit is made by gate electrodes of MISFETs constituting this flip-flop circuit. In addition, a source line is formed by the same step as that of a word line. A resistance value of a polycrystalline silicon layer which is a load resistor is changed in accordance with information to be stored. Furthermore, semiconductor regions for preventing soft errors attributed to alpha particles etc. are formed under the MISFETs constituting the flip-flop circuit, so that the channels are not adversely affected.

    摘要翻译: 公开了具有高可靠性并且适合于更高密度集成度的静态RAM。 在该静态RAM的每个存储单元中,触发器电路的交叉耦合由构成该触发器电路的MISFET的栅电极构成。 此外,源极线通过与字线的步骤相同的步骤形成。 作为负载电阻的多晶硅层的电阻值根据要存储的信息而改变。 此外,在构成触发电路的MISFET之下形成用于防止归因于α粒子等的软误差的半导体区域,使得通道不受不利影响。

    Semiconductor memory device
    56.
    发明授权
    Semiconductor memory device 失效
    半导体存储器件

    公开(公告)号:US4841481A

    公开(公告)日:1989-06-20

    申请号:US225467

    申请日:1988-07-28

    摘要: An SRAM including a memory cell having a high-resistance load element. The load element is formed from a polysilicon film, and an impurity is introduced into a least a part of the polysilicon film for the purpose of increasing the threshold voltage of a parasitic MISFET formed using the load element as its channel region. Alternatively, the deposition of the polysilicon film is carried out at a relatively high temperature, thereby preventing any increase in the current flowing through the load element, and thus reducing the power dissipation in the SRAM.

    摘要翻译: 包括具有高电阻负载元件的存储单元的SRAM。 负载元件由多晶硅膜形成,并且为了增加使用负载元件形成的寄生MISFET的阈值电压作为其沟道区域,将杂质引入到多晶硅膜的至少一部分中。 或者,多晶硅膜的沉积在相对高的温度下进行,从而防止流过负载元件的电流的任何增加,从而降低SRAM中的功率消耗。

    Method for making static random-access memory device
    57.
    发明授权
    Method for making static random-access memory device 失效
    制作静态随机存取存储器的方法

    公开(公告)号:US4774203A

    公开(公告)日:1988-09-27

    申请号:US899404

    申请日:1986-08-22

    摘要: A method of making a static random-access memory device or SRAM including a memory cell having a high-resistance load element. The load element is formed from a polysilicon film, and an impurity is introduced into at least a part of the polysilicon film for the purpose of increasing the threshold voltage of a parasitic MISFET formed using the load element as its channel region. Alternatively, the deposition of the polysilicon film is carried out at a relatively high temperature, thereby preventing any increase in the current flowing through the load element, and thus reducing the power dissipation in the SRAM.

    摘要翻译: 一种制造静态随机存取存储器件或包括具有高电阻负载元件的存储单元的SRAM的方法。 负载元件由多晶硅膜形成,并且为了增加使用负载元件形成的寄生MISFET的阈值电压作为其沟道区,将杂质引入到多晶硅膜的至少一部分中。 或者,多晶硅膜的沉积在相对高的温度下进行,从而防止流过负载元件的电流的任何增加,从而降低SRAM中的功率消耗。

    Interconnection structure for semiconductor integrated circuits
    59.
    发明授权
    Interconnection structure for semiconductor integrated circuits 失效
    半导体集成电路的互连结构

    公开(公告)号:US4199778A

    公开(公告)日:1980-04-22

    申请号:US843366

    申请日:1977-10-19

    摘要: In a semiconductor integrated circuit having polycrystalline silicon interconnections and metal interconnections, a low resistance layer, containing impurities to a high concentration for the polycrystalline silicon interconnections, is formed in predetermined parts of an undoped polycrystalline silicon layer which is deposited on a first insulator film on a semiconductor substrate, a second insulator film is deposited on the polycrystalline silicon layer under the state under which the undoped parts are left at least around through-holes to be formed, and the metal interconnections at least parts of which run in a direction intersecting the polycrystalline silicon interconnections are provided on the second insulator film, the necessary contacts between the metal interconnections and the polycrystalline silicon interconnections being made through the through-holes provided in the second insulator film in correspondence with the intersecting parts of both the interconnections.

    摘要翻译: 在具有多晶硅互连和金属互连的半导体集成电路中,在未掺杂的多晶硅层的预定部分中形成在多晶硅互连中含有高浓度的杂质的低电阻层,其沉积在第一绝缘膜上 半导体衬底,第二绝缘膜沉积在多晶硅层上,在未被掺杂的部分至少留在待形成的通孔周围的状态下,并且其至少部分的金属互连在与 多晶硅互连设置在第二绝缘膜上,金属互连和多晶硅互连之间的必要接触通过设置在第二绝缘膜中的通孔形成,与两个互连的相交部分相对应。

    Magnetic head having separated upper magnetic cores for avoiding magnetic saturation and manufacturing method of same
    60.
    发明授权
    Magnetic head having separated upper magnetic cores for avoiding magnetic saturation and manufacturing method of same 有权
    具有分离的上磁心以避免磁饱和的磁头及其制造方法

    公开(公告)号:US06538847B2

    公开(公告)日:2003-03-25

    申请号:US09764351

    申请日:2001-01-19

    IPC分类号: G11B5147

    摘要: An inductive magnetic head used for high-density recording having such a construction that prevents magnetic leakage near a magnetic pole at the tip of the magnetic core and reduces magnetic resistance or reluctance at an upper magnetic core front portion is disclosed. An upper magnetic core facing a lower magnetic core with a non-magnetic gap layer interposed therebetween comprises an upper magnetic core front portion near a magnetic pole, and an upper magnetic core rear portion at the rear portion. The front portion has a parallel portion having a width almost equal to the track width extending from the magnetic pole toward the rear end of the front portion, and a sector at the rear of an apex. The front portion has a non-magnetic gap with the lower magnetic core at an area between the magnetic pole and the apex, and the gap between the front portion and the lower magnetic core is wider than the magnetic gap at the rear of the apex. The tip portion of the upper magnetic core rear portion is overlapped and connected to the upper magnetic core front portion on the medium-facing surface side of the apex, extending therefrom to the upper part of a coil and a coil insulating layer.

    摘要翻译: 公开了一种用于高密度记录的感应磁头,其具有防止在磁芯顶端附近的磁极附近的磁泄漏并降低上磁芯前部的磁阻或磁阻的结构。 面对具有介于其间的非磁隙层的下磁芯的上磁芯包括在磁极附近的上磁芯前部和在后部的上磁芯后部。 前部具有平行部分,该平行部分的宽度几乎等于从磁极向前部的后端延伸的轨道宽度,以及在顶点后部的扇形部分。 前部在磁极和顶点之间的区域处具有与下磁芯的非磁性间隙,并且前部和下磁芯之间的间隙比顶点后部的磁隙宽。 上部磁芯后部的前端部与顶点的面向中间的表面侧的上部磁芯前部重叠并连接,从而向上延伸到线圈的上部和线圈绝缘层。