System and method for reducing irregularities on the surface of a backside illuminated photodiode
    1.
    发明授权
    System and method for reducing irregularities on the surface of a backside illuminated photodiode 有权
    用于减少背面照射光电二极管表面的凹凸的系统和方法

    公开(公告)号:US09349902B2

    公开(公告)日:2016-05-24

    申请号:US13486833

    申请日:2012-06-01

    摘要: System and method for processing a semiconductor device surface to reduce dark current and white pixel anomalies. An embodiment comprises a method applied to a semiconductor or photodiode device surface adjacent to a photosensitive region, and opposite a side having circuit structures for the device. A doped layer may optionally be created at a depth of less than about 10 nanometers below the surface of the substrate and may be doped with a boron concentration between about 1E13 and 1E16. An oxide may be created on the substrate using a temperature sufficient to reduce the surface roughness below a predetermined roughness threshold, and optionally at a temperature between about 300° C. and 500° C. and a thickness between about 1 nanometer and about 10 nanometers. A dielectric may then be created on the oxide, the dielectric having a refractive index greater than a predetermined refractive threshold, optionally at least about 2.0.

    摘要翻译: 用于处理半导体器件表面以减少暗电流和白色像素异常的系统和方法。 一个实施例包括应用于与光敏区域相邻的半导体或光电二极管器件表面的方法,以及与该器件的电路结构相反的一侧。 掺杂层可以任选地在衬底表面下方小于约10纳米的深度处产生,并且可以掺杂在约1E13和1E16之间的硼浓度。 可以使用足以将表面粗糙度降低到预定粗糙度阈值以下且可选地在约300℃至500℃之间的温度和约1纳米至约10纳米的厚度的温度在基底上产生氧化物 。 然后可以在氧化物上产生电介质,电介质具有大于预定折射阈值的折射率,任选至少约2.0。

    System and Method for Processing a Backside Illuminated Photodiode
    2.
    发明申请
    System and Method for Processing a Backside Illuminated Photodiode 有权
    用于处理背面照明光电二极管的系统和方法

    公开(公告)号:US20130320478A1

    公开(公告)日:2013-12-05

    申请号:US13486833

    申请日:2012-06-01

    摘要: System and method for processing a semiconductor device surface to reduce dark current and white pixel anomalies. An embodiment comprises a method applied to a semiconductor or photodiode device surface adjacent to a photosensitive region, and opposite a side having circuit structures for the device. A doped layer may optionally be created at a depth of less than about 10 nanometers below the surface of the substrate and may be doped with a boron concentration between about 1E13 and 1E16. An oxide may be created on the substrate using a temperature sufficient to reduce the surface roughness below a predetermined roughness threshold, and optionally at a temperature between about 300° C. and 500° C. and a thickness between about 1 nanometer and about 10 nanometers. A dielectric may then be created on the oxide, the dielectric having a refractive index greater than a predetermined refractive threshold, optionally at least about 2.0.

    摘要翻译: 用于处理半导体器件表面以减少暗电流和白色像素异常的系统和方法。 一个实施例包括应用于与光敏区域相邻的半导体或光电二极管器件表面的方法,以及与该器件的电路结构相反的一侧。 掺杂层可以任选地在衬底表面下方小于约10纳米的深度处产生,并且可以掺杂在约1E13和1E16之间的硼浓度。 可以使用足以将表面粗糙度降低到预定粗糙度阈值以下且可选地在约300℃至500℃之间的温度和约1纳米至约10纳米的厚度的温度在基底上产生氧化物 。 然后可以在氧化物上产生电介质,电介质具有大于预定折射阈值的折射率,任选至少约2.0。