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    • 1. 发明公开
    • 스태틱형 반도체 기억장치
    • 静态半导体存储器件
    • KR1020040018112A
    • 2004-03-02
    • KR1020030027190
    • 2003-04-29
    • 미쓰비시덴키 가부시키가이샤
    • 쓰카모토야수마사니이코지
    • H01L27/11
    • H01L27/1104G11C8/16G11C11/412H01L27/11Y10S257/903
    • PURPOSE: To accelerate an SRAM and to secure a margin to variance on manufacture. CONSTITUTION: The SRAM is provided with first and second access PMOS transistors P1 and P2 formed on an N well region, first and second driver NMOS transistors N1 and N2 formed on a P well region, a wordline, and first and second bit lines. Active regions 2a to 2d are extended in the same direction, and polysilicon wires 3a to 3d forming the gate of each MOS transistor are extended in the same direction. The drains of the first and the second access PMOS transistors P1 and P2 and the drains of the first and the second driver NMOS transistors N1 and N2 are respectively connected by using first metal wires 5c and 5d without interposing polysilicon wires 3b and 3d forming the gates of first and second driver NMOS transistors.
    • 目的:加速SRAM并确保制造方面的差距。 构成:SRAM设置有形成在N阱区上的第一和第二访问PMOS晶体管P1和P2,形成在P阱区,字线和第一和第二位线上的第一和第二驱动器NMOS晶体管N1和N2。 有源区域2a至2d沿相同的方向延伸,并且形成每个MOS晶体管的栅极的多晶硅线3a至3d沿相同的方向延伸。 通过使用第一金属线5c和5d分别连接第一和第二访问PMOS晶体管P1和P2的漏极以及第一和第二驱动器NMOS晶体管N1和N2的漏极,而不插入形成栅极的多晶硅线3b和3d 的第一和第二驱动器NMOS晶体管。
    • 4. 发明公开
    • 반도체 기억장치
    • 半导体存储器件
    • KR1020040002438A
    • 2004-01-07
    • KR1020030011379
    • 2003-02-24
    • 미쓰비시덴키 가부시키가이샤
    • 니이코지
    • H01L27/11
    • H01L27/1104Y10S257/903Y10S257/905
    • PURPOSE: To provide an SRAM (Static Random Access Memory) which can reduce a memory cell area effectively while ensuring a margin for mask misregistration or the like in the formation of a gate wiring and a contact hole or the like. CONSTITUTION: The SRAM is arranged in the extension direction of a bit lie, has a long side and a short side and has a plurality of memory cells 1 wherein the extension direction of the short side is the same direction as the extension direction of the bit line. A distance D1 between polysilicon wirings 3b, 3a which form gates of NMOS transistors N1, N3 formed inside one memory cell 1 and arranged in the extension direction of the bit line is different from a distance D2 between the polysilicon wiring 3b and a polysilicon wiring 3b which becomes the gate of the NMOS transistor N1 formed inside the other memory cell 1.
    • 目的:提供一种SRAM(静态随机存取存储器),其可以有效地减小存储单元面积,同时确保形成栅极布线和接触孔等时的掩模重合不足等。 构成:SRAM沿位的延伸方向排列,具有长边和短边,并且具有多个存储单元1,其中短边的延伸方向与位的延伸方向相同的方向 线。 形成在一个存储单元1内并沿位线的延伸方向配置的NMOS晶体管N1,N3的栅极的多晶硅布线3b,3a之间的距离D1与多晶硅布线3b和多晶硅布线3b之间的距离D2不同 其成为形成在另一个存储单元1内部的NMOS晶体管N1的栅极。
    • 10. 发明公开
    • 더미 메모리셀을 구비한 스태틱형 반도체 기억장치
    • 静态半导体存储器件
    • KR1020040014150A
    • 2004-02-14
    • KR1020030017785
    • 2003-03-21
    • 미쓰비시덴키 가부시키가이샤
    • 와타나베테쓰야니이코지나카세야스노부
    • G11C11/41
    • G11C11/419
    • PURPOSE: To provide a static semiconductor memory device which can easily optimize the operation timing and has a high operation margin. CONSTITUTION: A dummy memory cell 3 of this SPRAM (Static Random Access Memory) is formed by replacing P channel MOS transistors(TRs) 21 and 22 for loading a normal memory cell 2 with N channel MOS TRs 27 and 28, applying a power source potential VDD to a memory node N2 and applying the ground potential GND to the source of the MOS TR 27. When a word line WL is raised to an "H" level, the N channel MOS TRs 25 and 26 are made conductive and a current flows out to the line of the ground potential GND through the N channel MOS TRs 25, 23 and 27 from a dummy bit line DBL. Accordingly, the potential drop speed of the dummy bit line DBL is made higher than the potential drop speed of the bit line BL or/BL.
    • 目的:提供一种静态半导体存储器件,可以轻松优化操作时序,并具有较高的操作余量。 构成:通过代替P沟道MOS晶体管(TRs)21和22来形成该SPRAM(静态随机存取存储器)的虚拟存储单元3,用于加载具有N沟道MOS TR27和28的正常存储单元2,施加电源 将电位VDD施加到存储器节点N2,并将接地电位GND施加到MOS TR 27的源极。当字线WL升高到“H”电平时,使N沟道MOS TR 25和26导通, 从虚拟位线DBL通过N沟道MOS TR 25,23和27流出到地电位GND的线。 因此,使虚拟位线DBL的电位下降速度高于位线BL或/ BL的电位下降速度。