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    • 4. 发明申请
    • WAFER LEVEL PROCESSING FOR BACKSIDE ILLUMINATED IMAGE SENSORS
    • 背面照明图像传感器的水平加工
    • US20110042770A1
    • 2011-02-24
    • US12940133
    • 2010-11-05
    • Frederick T. Brady
    • Frederick T. Brady
    • H01L31/0232H01L31/18
    • H01L27/14636H01L27/14618H01L27/14627H01L27/1464H01L27/14683H01L2924/0002H01L2924/00
    • A backside illuminated image sensor comprises a sensor layer having a plurality of photosensitive elements of a pixel array, an oxide layer adjacent a backside surface of the sensor layer, and at least one dielectric layer adjacent a frontside surface of the sensor layer. A color filter array is formed on a backside surface of the oxide layer, and a transparent cover is attached to the backside surface of the oxide layer overlying the color filter array. Redistribution metal conductors are in electrical contact with respective bond pad conductors through respective openings in the dielectric layer. A redistribution passivation layer is formed over the redistribution metal conductors, and contact metallizations are in electrical contact with respective ones of the respective redistribution metal conductors through respective openings in the redistribution passivation layer. The image sensor may be implemented in a digital camera or other type of digital imaging device.
    • 背面照明图像传感器包括传感器层,其具有多个像素阵列的感光元件,邻近传感器层的背面的氧化物层以及与传感器层的前侧表面相邻的至少一个电介质层。 在氧化物层的背面形成有滤色器阵列,在覆盖滤色器阵列的氧化物层的背面附着有透明盖。 再分布金属导体通过介电层中的相应开口与相应的接合焊盘导体电接触。 再分布钝化层形成在再分布金属导体上,并且接触金属化通过再分布钝化层中的相应开口与相应的再分布金属导体中的相应的一个电接触。 图像传感器可以在数字照相机或其他类型的数字成像装置中实现。
    • 5. 发明申请
    • BACKSIDE ILLUMINATED IMAGE SENSOR WITH SHALLOW BACKSIDE TRENCH FOR PHOTODIODE ISOLATION
    • 背面照明的图像传感器,带有背光隔离膜,用于光电隔离
    • US20100006908A1
    • 2010-01-14
    • US12169810
    • 2008-07-09
    • Frederick T. Brady
    • Frederick T. Brady
    • H01L31/00H01L21/00
    • H01L27/14632H01L27/1463H01L27/1464H01L27/14687
    • A backside illuminated image sensor comprises a sensor layer implementing a plurality of photosensitive elements of a pixel array, an oxide layer adjacent a backside surface of the sensor layer, and at least one dielectric layer adjacent a frontside surface of the sensor layer. The sensor layer further comprises a plurality of backside trenches formed in the backside surface of the sensor layer and arranged to provide isolation between respective pairs of the photosensitive elements. The backside trenches have corresponding backside field isolation implant regions formed in the sensor layer, and the resulting structure provides reductions in carrier recombination and crosstalk between adjacent photosensitive elements. The image sensor may be implemented in a digital camera or other type of digital imaging device.
    • 背面照明图像传感器包括实现像素阵列的多个感光元件的传感器层,邻近传感器层的背面的氧化物层以及与传感器层的前侧表面相邻的至少一个电介质层。 传感器层还包括形成在传感器层的背面中的多个背面沟槽,并被布置成在各对感光元件之间提供隔离。 背面沟槽具有形成在传感器层中的相应的背面场隔离注入区域,并且所得结构提供相邻光敏元件之间的载流子复合和串扰的减小。 图像传感器可以在数字照相机或其他类型的数字成像装置中实现。
    • 6. 发明申请
    • METHODS, STRUCTURES AND SYTEMS FOR AN IMAGE SENSOR DEVICE FOR IMPROVING QUANTUM EFFICIENCY OF RED PIXELS
    • 用于提高红色像素的量子效率的图像传感器设备的方法,结构和动作
    • US20080265295A1
    • 2008-10-30
    • US11741259
    • 2007-04-27
    • Frederick T. Brady
    • Frederick T. Brady
    • H01L31/042H01L31/18
    • H01L27/14603H01L27/1463H01L27/14689
    • A method and structure for providing a high energy implant in only the red pixel location of a CMOS image sensor. The implant increases the photon collection depth for the red pixels, which in turn increases the quantum efficiency for the red pixels. In one embodiment, a CMOS image sensor is formed on an p-type substrate and the high energy implant is a p-type implant that creates a p-type ground contact under the red pixel, thus reducing dark non-uniformity effects. In another embodiment, a CMOS image sensor is formed on an n-type substrate and a high energy p-type implant creates a p-type region under only the red pixel to increase photon collection depth, which in turn increases the quantum efficiency for the red pixels.
    • 一种仅在CMOS图像传感器的红色像素位置提供高能量注入的方法和结构。 植入物增加了红色像素的光子收集深度,这进而提高了红色像素的量子效率。 在一个实施例中,在p型衬底上形成CMOS图像传感器,并且高能量注入是在红色像素之下产生p型接地触点的p型注入,从而减少黑暗的不均匀效应。 在另一个实施例中,CMOS图像传感器形成在n型衬底上,高能p型注入器仅在红色像素下产生p型区域,以增加光子收集深度,这进而提高了量子效率 红色像素。
    • 8. 发明授权
    • Color filter array alignment mark formation in backside illuminated image sensors
    • 背面照明图像传感器中的滤色器阵列对准标记形成
    • US08017426B2
    • 2011-09-13
    • US12169709
    • 2008-07-09
    • Frederick T. Brady
    • Frederick T. Brady
    • H01L21/00
    • H01L27/14685H01L27/14621H01L27/1464H01L2224/16225
    • A backside illuminated image sensor includes a sensor layer comprising photosensitive elements of the pixel array, an epitaxial layer formed on a frontside surface of the sensor layer, and a color filter array formed on a backside surface of the sensor layer. The epitaxial layer comprises polysilicon color filter array alignment marks formed in locations corresponding to respective color filter array alignment mark openings in the frontside surface of the sensor layer. The color filter array is aligned to the color filter array alignment marks of the epitaxial layer. The image sensor may be implemented in a digital camera or other type of digital imaging device.
    • 背面照明图像传感器包括包含像素阵列的感光元件的传感器层,形成在传感器层的前侧表面上的外延层和形成在传感器层的背面上的滤色器阵列。 外延层包括在与传感器层的前侧表面中的各个滤色器阵列对准标记开口对应的位置处形成的多晶硅滤色器阵列对准标记。 滤色器阵列与外延层的滤色器阵列对准标记对准。 图像传感器可以在数字照相机或其他类型的数字成像装置中实现。
    • 10. 发明授权
    • Apparatus and method for manufacturing a semiconductor circuit
    • 用于制造半导体电路的装置和方法
    • US06762128B2
    • 2004-07-13
    • US10177915
    • 2002-06-20
    • Paul A. BernkopfFrederick T. BradyNadim Haddad
    • Paul A. BernkopfFrederick T. BradyNadim Haddad
    • H01L21302
    • H01L21/02164H01L21/02271H01L21/02274H01L21/31608H01L21/76229
    • A method and an apparatus for manufacturing, via a single fabrication line, circuits that are radiation tolerant and also circuits that are radiation intolerant. When production calls for radiation-tolerant circuits, low-pressure chemical vapor deposition is advantageously used to deposit an electrically-insulating material, such as silicon dioxide, in trenches to provide electrical isolation between adjacent semiconductor devices. When production requires radiation-intolerant circuits, as may be required for export, then the trenches are filled via a procedure that deposits an electrically-insulating material that, on exposure to ionizing radiation, generates a suitably large amount of “positive charge traps.” One procedure suitable for creating such positive charge traps is high-density plasma chemical vapor deposition (HDPCVD).
    • 一种用于通过单个制造线制造耐辐射电路以及辐射不耐受的电路的方法和装置。 当生产要求耐辐射电路时,低压化学气相沉积有利地用于在沟槽中沉积诸如二氧化硅的电绝缘材料,以在相邻的半导体器件之间提供电隔离。 当生产需要耐辐射电路时,可能需要输出电路,然后通过沉积电绝缘材料的程序来填充沟槽,这些电绝缘材料在暴露于电离辐射时产生适当大量的“正电荷陷阱”。 适用于产生这种正电荷陷阱的一种方法是高密度等离子体化学气相沉积(HDPCVD)。