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    • 5. 发明授权
    • CCD image sensor with stacked charge transfer gate structure
    • CCD图像传感器具有堆叠的电荷转移门结构
    • US5506429A
    • 1996-04-09
    • US208750
    • 1994-03-11
    • Nagataka TanakaNobuo NakamuraYoshiyuki MatsunagaShinji OhsawaMichio SasakiHirofumi YamashitaRyohei Miyagawa
    • Nagataka TanakaNobuo NakamuraYoshiyuki MatsunagaShinji OhsawaMichio SasakiHirofumi YamashitaRyohei Miyagawa
    • H01L27/148H04N5/335H04N5/341H04N5/357H04N5/3728H01L29/765
    • H01L27/14831
    • A CCD imager has an array of rows and columns of picture elements on a semiconductor substrate. A vertical charge transfer gate section extends in a first direction on the substrate to be associated with the columns. The transfer gate section includes CCD channels in the substrate, and insulated transfer gate electrodes overlying these CCD channels. A plurality of buffer electrodes are formed at a first level over the substrate surface to overlie the transfer gate electrodes. A plurality of shunt wires are formed at a second level over the substrate surface to overlie the buffer electrodes. The charge transfer gate electrodes and the buffer electrodes are connected with each other by first contact holes. The buffer electrodes and the shunt wires are coupled together by second contact holes. The second contact holes are distributed so that the repeat period thereof as defined at least in a second direction transverse to the first direction on the substrate is equal to or less than two picture elements, whereby their spatial frequency at least in the second direction is half the sampling frequency of photoconversion in the CCD imager, or more.
    • CCD成像器在半导体衬底上具有一列行和列的像素。 垂直电荷转移栅极部分在衬底上的第一方向上延伸以与柱相关联。 传输门部分包括衬底中的CCD通道,以及覆盖这些CCD通道的绝缘传输栅电极。 多个缓冲电极形成在衬底表面上的第一层上以覆盖传输栅电极。 在衬底表面上的第二层上形成多个分流电线以覆盖缓冲电极。 电荷转移栅电极和缓冲电极通过第一接触孔相互连接。 缓冲电极和并联线通过第二接触孔耦合在一起。 分布第二接触孔,使得其至少沿与衬底上的第一方向横切的第二方向限定的重复周期等于或小于两个图像元素,由此其至少在第二方向上的空间频率为一半 CCD成像仪中光电转换的采样频率,或更多。
    • 6. 发明授权
    • Solid-state image sensing device with storage-diode potential controller
    • 具有存储二极管电位控制器的固态摄像装置
    • US5504526A
    • 1996-04-02
    • US155833
    • 1993-11-23
    • Ryohei MiyagawaShinji OhsawaHirofumi YamashitaMichio SasakiYoshiyuki Matsunaga
    • Ryohei MiyagawaShinji OhsawaHirofumi YamashitaMichio SasakiYoshiyuki Matsunaga
    • H01L27/148H04N1/028H04N5/335H04N5/341H04N5/365H04N5/369H04N5/3728H04N5/376
    • H04N5/3728H01L27/14831H04N5/3597
    • A solid-state imaging device includes a substrate, and an array of charge-packet storage cells or picture elements (or "pixels") arranged on the substrate, each including a storage diode that stores therein a signal charge packet indicative of an incident light. A charge transfer section is coupled with the array of picture elements. The transfer section includes a charge-coupled device (CCD) register layer that is spaced apart from the storage diode to define a channel region therebetween, and a first insulated electrode overlying the register layer and the channel region. A reset section is coupled to the storage diode, for potentially resetting the storage diode by additionally injecting an extra charge packet into the storage diode and by causing the charge to drained from the storage diode. A potential controller is provided which forces, when a signal charge packet is read out of the storage diode toward the CCD register layer, the storage diode to decrease in potential so that the storage diode becomes potentially less than its potential as set during the reset operation, while causing the channel region to be fixed at almost the same potential during the read operation and the reset operation.
    • 固态成像装置包括基板和布置在基板上的电荷分组存储单元或像素(或“像素”)的阵列,每个包括存储二极管,其中存储指示入射光的信号电荷分组 。 电荷转移部分与图像元素阵列耦合。 转印部分包括与存储二极管间隔开以限定它们之间的沟道区域的电荷耦合器件(CCD)寄存器层,以及覆盖寄存器层和沟道区域的第一绝缘电极。 复位部分耦合到存储二极管,用于通过额外地将额外的电荷分组注入到存储二极管中并通过使电荷从存储二极管排出来潜在地复位存储二极管。 提供了一种电位控制器,当将信号电荷分组从存储二极管朝向CCD寄存器层读出时,存储二极管降低电位,使得存储二极管潜在地小于其在复位操作期间设置的电位 同时在读取操作和复位操作期间使通道区域固定在几乎相同的电位。
    • 7. 发明授权
    • Solid-state CCD imaging device with transfer gap voltage controller
    • 带传输间隙电压控制器的固态CCD成像装置
    • US5210433A
    • 1993-05-11
    • US962003
    • 1992-10-15
    • Shinji OhsawaYoshiyuki MatsunagaRyohei Miyagawa
    • Shinji OhsawaYoshiyuki MatsunagaRyohei Miyagawa
    • H01L27/148H01L29/768
    • H01L29/76841H01L27/14831
    • A solid-state CCD imaging device has a substrate, photosensitive pixel cells provided as pixel sections in the substrate, and a transfer section, provided in the substrate, for transferring signal charge carriers read out from the pixel cells in a predetermined transfer direction. The transfer section has a semiconductive charge transfer channel layer formed in the substrate and transfer electrodes insulatively provided above the substrate and arrayed in the above direction while predetermined gap sections are kept therebetween. Each of the transfer electrodes defines one charge transfer stage. A gap potential control electrode layer is insulatively disposed above the electrodes. The gap potential control electrode layer is applied with a gap potential control voltage and steadily sets, in accordance with the applied voltage, the potential in layer sections of the channel layer located below the gap section of the transfer electrodes at a predetermined level intermediate between "High" and "Low" level voltages of the channel layers upon charge transfer.
    • 固体CCD成像装置具有基板,设置在基板中的像素部的感光像素单元和设置在基板中的转印部,用于传送沿预定的传送方向从像素单元读出的信号电荷载流子。 转印部分具有形成在衬底中的半导体电荷转移沟道层,并且绝缘地设置在衬底上方并沿上述方向排列的传输电极,同时保持预定的间隙部分。 每个转移电极限定一个电荷转移级。 间隙电位控制电极层绝缘地设置在电极上方。 间隙电位控制电极层被施加间隙电位控制电压,并且根据施加的电压稳定地将位于传输电极的间隙部分下方的沟道层的层部分中的电位设置在“ 电荷转移时通道层的“高”和“低”电平电压。