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    • 5. 发明授权
    • Method of manufacturing a semiconductor integrated circuit device
    • 制造半导体集成电路器件的方法
    • US07075157B2
    • 2006-07-11
    • US10834020
    • 2004-04-29
    • Kenichi KikushimaFumio OotsukaKazushige Sato
    • Kenichi KikushimaFumio OotsukaKazushige Sato
    • H01L29/76
    • H01L27/11H01L27/1104Y10S257/903Y10S257/904
    • Disclosed is a semiconductor integrated circuit device (e.g., an SRAM) having memory cells each of a flip-flop circuit constituted by and a pair of load MISFETs, the MISFETs being cross-connected by a pair of local wiring lines, and having transfer MISFETs, wherein gate electrodes of all of the MISFETs are provided in a first level conductive layer, and the pair of local wiring lines are provided respectively in second and third level conductive layers. The local wiring lines can overlap and have a dielectric therebetween so as to form a capacitance element, to increase alpha particle soft error resistance. Moreover, by providing the pair of local wiring lines respectively in different levels, integration of the device can be increased. Side wall spacers can be provided on the sides of the gate electrodes of the MISFETs and on the sides of the local wiring lines, and connection holes to semiconductor regions of these MISFETs are self-aligned to both the gate electrodes and the local wiring lines, whereby capacitor area can be increased and integration of the device can also be increased.
    • 公开了一种半导体集成电路器件(例如,SRAM),其具有由一对负载MISFET构成的触发电路和每一个负载MISFET的存储单元,MISFET通过一对局部布线交叉连接,并具有传输MISFET 其中,所有MISFET的栅极设置在第一层导电层中,并且所述一对局部布线分别设置在第二和第三层导电层中。 局部布线可以重叠并在其间具有电介质以形成电容元件,以增加α粒子的软阻抗。 此外,通过分别在不同级别设置一对局部布线,可以提高装置的集成度。 可以在MISFET的栅电极的侧面和局部布线的侧面上设置侧壁间隔物,并且到这些MISFET的半导体区域的连接孔与栅电极和局部布线两者自对准, 从而可以增加电容器面积并且还可以增加器件的集成。
    • 8. 发明授权
    • Semiconductor integrated circuit device and a method of manufacturing the same
    • 半导体集成电路器件及其制造方法
    • US06762444B2
    • 2004-07-13
    • US10308001
    • 2002-12-03
    • Fumio OotsukaYusuke NonakaSatoshi ShimamotoSohei OmoriHideto Kazama
    • Fumio OotsukaYusuke NonakaSatoshi ShimamotoSohei OmoriHideto Kazama
    • H01L21336
    • H01L27/11H01L27/1104
    • In order to improve the performance of a semiconductor integrated circuit device wherein a capacitor provided between storage nodes of an SRAM and a device having an analog capacitor are formed on a single substrate, a plug is formed in a silicon oxide film on a pair of n channel type MISFETs in a memory cell forming area, and a local wiring LIc for connecting respective gate electrodes and drains of the pair of n channel type MISFETs is formed over the silicon oxide film and the plug. Thereafter, a capacitive insulating film and an upper electrode are further formed over the local wiring LIc. According to the same process step as the local wiring, capacitive insulating film and upper electrode formed in the memory cell forming area, a local wiring LIc, a capacitive insulating film and an upper electrode are formed over a silicon oxide film in an analog capacitor forming area and a plug in the silicon oxide film.
    • 为了提高半导体集成电路器件的性能,其中在单个衬底上形成在SRAM的存储节点和具有模拟电容器的器件之间提供的电容器,在一对n上的氧化硅膜中形成插头 存储单元形成区域中的沟道型MISFET以及用于连接该n沟道型MISFET的各个栅电极和漏极的局部布线LIc形成在氧化硅膜和插塞上。 此后,在本地布线LIc上进一步形成电容绝缘膜和上电极。 根据与形成在存储单元形成区域中的局部布线,电容绝缘膜和上电极,局部布线LIc,电容绝缘膜和上电极相同的处理步骤,形成在模拟电容器形成中的氧化硅膜上 区域并插入氧化硅膜。
    • 9. 发明授权
    • Semiconductor integrated circuit device
    • 半导体集成电路器件
    • US06661063B2
    • 2003-12-09
    • US09796616
    • 2001-03-02
    • Kenichi KikushimaFumio OotsukaKazushige Sato
    • Kenichi KikushimaFumio OotsukaKazushige Sato
    • H01L2976
    • H01L27/11H01L27/1104Y10S257/903
    • Disclosed is a semiconductor integrated circuit device (e.g., an SRAM) having memory cells each of a flip-flop circuit constituted by a pair of drive MISFETs and a pair of load MISFETs, the MISFETs being cross-connected by a pair of local wiring lines, and having transfer MISFETs, wherein gate electrodes of all of the MISFETs are provided in a first level conductive layer, and the pair of local wiring lines are provided respectively in second and third level conductive layers. The local wiring lines can overlap and have a dielectric therebetween so as to form a capacitance element, to increase alpha particle soft error resistance. Moreover, by providing the pair of local wiring lines respectively in different levels, integration of the device can be increased. Side wall spacers can be provided on the sides of the gate electrodes of the MISFETs and on the sides of the local wiring lines, and connection holes to semiconductor regions of these MISFETs are self-aligned to both the gate electrodes and the local wiring lines, whereby capacitor area can be increased and integration of the device can also be increased.
    • 公开了一种半导体集成电路器件(例如,SRAM),其具有由一对驱动MISFET和一对负载MISFET构成的触发电路的存储单元,MISFET通过一对局部布线交叉连接 并且具有转移MISFET,其中所有MISFET的栅极设置在第一级导电层中,并且该对局部布线分别设置在第二和第三层导电层中。 局部布线可以重叠并在其间具有电介质以形成电容元件,以增加α粒子的软阻抗。 此外,通过分别在不同级别设置一对局部布线,可以提高装置的集成度。 可以在MISFET的栅电极的侧面和局部布线的侧面上设置侧壁间隔物,并且到这些MISFET的半导体区域的连接孔与栅电极和局部布线两者自对准, 从而可以增加电容器面积并且还可以增加器件的集成。