会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Redundancy circuit for repairing defective bits in semiconductor memory
device
    • 用于修复半导体存储器件中的有缺陷的位的冗余电路
    • US5574729A
    • 1996-11-12
    • US338817
    • 1994-11-10
    • Mitsuya KinoshitaShigeru MoriYoshikazu MorookaHiroshi MiyamotoShigeru KikudaMakoto Suwa
    • Mitsuya KinoshitaShigeru MoriYoshikazu MorookaHiroshi MiyamotoShigeru KikudaMakoto Suwa
    • G11C11/401G11C29/00G11C29/04G06F11/00
    • G11C29/848
    • A semiconductor memory device includes a plurality of memory blocks, i main row or column select lines extending over the plurality of memory blocks, and a decoder for selecting one of the main row or column select lines in accordance with an applied address signal. The decoder includes i outputs. Each of the memory blocks includes a plurality of memory cells arranged in rows and columns and at least (i+1) sub row or column select lines each for selecting one row or one column of memory cells. A shift redundancy circuit is provided for each of the memory blocks, for connecting the main row or column select line and the sub row or column select line. The shift redundancy circuit includes a switch circuit for connecting one main row or column select line to one of the plurality of adjacent sub row or column select lines, and a circuit for setting a connection path of the switch circuit. The shift redundancy circuit connects successively adjacent sub row or column select lines to main row or column select lines in one to one correspondence except a defective sub row or column select line associated with a defective bit.
    • 一种半导体存储器件包括多个存储块,i个在多个存储块上延伸的主行或列选择线,以及用于根据所施加的地址信号选择主行或列选择线中的一个的解码器。 解码器包括i个输出。 每个存储块包括排列成行和列的多个存储器单元和至少(i + 1)个子行或列选择线,每个用于选择一行或一列存储单元。 为每个存储块提供移位冗余电路,用于连接主行或列选择线和子行或列选择线。 移位冗余电路包括用于将一个主行或列选择线连接到多个相邻子行或列选择线中的一个的开关电路和用于设置开关电路的连接路径的电路。 除了与有缺陷的位相关联的有缺陷的子行或列选择线之外,移位冗余电路将连续相邻的子行或列选择线以一对一的对应方式连接到主行或列选择线。
    • 8. 发明授权
    • Dynamic random access memory device with internal refresh
    • 具有内部刷新功能的动态随机存取存储器
    • US4870620A
    • 1989-09-26
    • US141076
    • 1988-01-05
    • Tadato YamagataHiroshi MiyamotoMichihiro YamadaShigeru MoriTetsuya Aono
    • Tadato YamagataHiroshi MiyamotoMichihiro YamadaShigeru MoriTetsuya Aono
    • G11C8/06G11C11/406
    • G11C8/06G11C11/406
    • The switching circuit 4 receives external address signals EXT. A.sub.0 to A.sub.8 or output signals Q.sub.0 to Q.sub.8 from the refresh counter 2 and selects either of these signals in response to the clock signals .phi..sub.2 and .phi..sub.2 to apply the same to the address buffer 1. A plurality of N type field effect transistors, which operate in response to the clock signal .phi..sub.3, such as transistors 540, 54 and 548 are connected between each of the inputs of the switching circuit 4 for receiving the external address signals EXT. A.sub.0 to A.sub.8 and the ground V.sub.ss. Referring to the i-th circuit portion, before the switching circuit 4 applies a signal Q.sub.i from the refresh counter 2 to the address buffer 1, the transistor 54 turns on in response to the clock signal .phi..sub.3 and brings the input of the address buffer 1 to the voltage level of the ground V.sub.ss. When the switching circuit 4 is switched, the signal from the refresh counter 2 is correctly applied to the address buffer 1. Therefore, malfunctions of the address buffer 1 can be prevented.
    • 开关电路4接收外部地址信号EXT。 A0至A8或来自刷新计数器2的输出信号Q0至Q8,并响应于时钟信号phi 2和phi 2选择这些信号之一,以将其应用于地址缓冲器1.多个N型场效应晶体管, 响应于时钟信号phi 3工作的时钟信号,例如晶体管540,54和548连接在开关电路4的每个输入端之间,用于接收外部地址信号EXT。 A0到A8和地面Vss。 参考第i个电路部分,在开关电路4将来自刷新计数器2的信号Qi施加到地址缓冲器1之前,晶体管54响应于时钟信号phi3导通,并使地址缓冲器 1到地面Vss的电压电平。 当切换电路4被切换时,来自刷新计数器2的信号被正确地施加到地址缓冲器1.因此,可以防止地址缓冲器1的故障。
    • 9. 发明授权
    • CMOS dynamic random access memory
    • CMOS动态随机存取存储器
    • US4780850A
    • 1988-10-25
    • US116285
    • 1987-11-02
    • Hiroshi MiyamotoShigeru MoriMichihiro YamadaTadato Yamagata
    • Hiroshi MiyamotoShigeru MoriMichihiro YamadaTadato Yamagata
    • G11C11/4091G11C11/4094G11C7/00
    • G11C11/4091G11C11/4094
    • A dynamic random access memory comprises N channel sense amplifiers, P channel sense amplifiers and an equalizing MOSFET each provided for each of bit line pairs. The N channel sense amplifiers and the P channel sense amplifiers are operated by sense amplifier driving signals. In each of the N channel sense amplifiers, an MOSFET is connected between one of bit lines and an interconnection for transmitting a sense amplifier driving signal. In addition, a precharge potential generating circuit for generating a potential of (1/2)V.sub.CC is connected to the interconnection for transmitting the sense amplifier driving signal through a MOSFET. The bit line pairs are equalized by the equalizing MOSFET. Then, in each of the N channel sense amplifiers, the above described interconnection and one of the bit lines are connected to each other, and the above described interconnection and the precharge potential generating circuit are connected to each other. Therefore, the potentials on the bit line pairs and the above described interconnection are held at (1/2)V.sub.CC.
    • 动态随机存取存储器包括N个通道读出放大器,P沟道读出放大器和均匀化的MOSFET,每个均为每个位线对提供。 N沟道读出放大器和P沟道读出放大器由读出放大器驱动信号操作。 在每个N沟道读出放大器中,MOSFET连接在位线之一和用于传输读出放大器驱动信号的互连之间。 此外,用于产生(1/2)VCC的电位的预充电电位发生电路连接到用于通过MOSFET传输读出放大器驱动信号的互连。 位线对由均衡MOSFET均衡。 然后,在N个通道读出放大器的每一个中,上述互连和一个位线彼此连接,并且上述互连和预充电电势产生电路彼此连接。 因此,位线对上的电位和上述互连保持在(1/2)VCC。
    • 10. 发明授权
    • Electric fuse for a redundancy circuit
    • 电熔丝用于冗余电路
    • US4984054A
    • 1991-01-08
    • US481683
    • 1990-02-20
    • Michihiro YamadaHiroshi MiyamotoTadato YamagataShigeru Mori
    • Michihiro YamadaHiroshi MiyamotoTadato YamagataShigeru Mori
    • H01L21/82H01H37/76H01L21/3205H01L23/525H01L27/10
    • H01L23/5256H01L2924/0002
    • The present invention comprises a field oxide film formed on a silicon substrate, an underlying film of polycrystal silicon formed on a portion thereof and an insulating film formed so as to cover the field oxide film comprising the underlying film. A surface stepped portion of the insulating film is formed by a portion with an underlying film and a portion without an underlying film under the insulating film, and a blowout portion of a fuse is formed along the surface stepped portion. There are terminal portions at both ends of the blowout portion of the fuse and an aluminum line is connected thereto. In addition, the whole portions comprising the fuse portion are covered with another insulating film and the whole is protected. The fuse is employed as one example in a redundancy circuit of a MOS dynamic RAM having redundancy memory cells.
    • 本发明包括形成在硅衬底上的场氧化物膜,形成在其一部分上的多晶硅的下面的膜和形成为覆盖包括下面的膜的场氧化物膜的绝缘膜。 绝缘膜的表面阶梯部分由具有下面的膜的部分和在绝缘膜下方没有下面的膜的部分形成,并且沿表面台阶形成熔丝的吹出部分。 在保险丝的吹出部分的两端有端子部分,铝线连接到其上。 此外,包括熔丝部分的整个部分被另一绝缘膜覆盖,并且整体被保护。 在具有冗余存储单元的MOS动态RAM的冗余电路中采用熔丝作为一个例子。