Semiconductor device and manufacturing method thereof
    5.
    发明授权
    Semiconductor device and manufacturing method thereof 有权
    半导体装置及其制造方法

    公开(公告)号:US09337225B2

    公开(公告)日:2016-05-10

    申请号:US14026141

    申请日:2013-09-13

    IPC分类号: H01L27/146

    摘要: A backside illumination semiconductor image sensing device includes a semiconductor substrate. The semiconductor substrate includes a radiation sensitive diode and a peripheral region. The peripheral region is proximal to a sidewall of the backside illumination semiconductor image sensing device. The backside illumination semiconductor image sensing device further includes a first anti reflective coating (ARC) on a backside of the semiconductor substrate and a dielectric layer on the first anti reflective coating. Additionally, a radiation shielding layer is disposed on the dielectric layer. Moreover, the backside illumination semiconductor image sensing device has a photon blocking layer on the sidewall of the backside illumination semiconductor image sensing device. The at least a portion of a sidewall of the radiation shielding layer is not covered by the photon blocking layer and the photon blocking layer is configured to block photons penetrating into the semiconductor substrate.

    摘要翻译: 背面照明半导体图像感测装置包括半导体衬底。 半导体衬底包括辐射敏感二极管和外围区域。 外围区域靠近背侧照明半导体图像感测装置的侧壁。 背面照明半导体图像感测装置还包括在半导体衬底的背面上的第一抗反射涂层(ARC)和第一抗反射涂层上的介电层。 另外,辐射屏蔽层设置在电介质层上。 此外,背面照明半导体图像感测装置在背面照明半导体图像感测装置的侧壁上具有光子阻挡层。 辐射屏蔽层的侧壁的至少一部分未被光子阻挡层覆盖,并且光子阻挡层被配置为阻挡穿透到半导体衬底中的光子。

    Grid structure with at least partially angled sidewalls

    公开(公告)号:US11990488B2

    公开(公告)日:2024-05-21

    申请号:US17249787

    申请日:2021-03-12

    IPC分类号: H01L27/146 H04N25/77

    摘要: A grid structure in a pixel array may be at least partially angled or tapered toward a top surface of the grid structure such that the width of the grid structure approaches a near-zero width near the top surface of the grid structure. This permits the spacing between color filter regions in between the grid structure to approach a near-zero spacing near the top surfaces of the color filter regions. The tight spacing of color filter regions provided by the angled or tapered grid structure provides a greater surface area and volume for incident light collection in the color filter regions. Moreover, the width of the grid structure may increase at least partially toward a bottom surface of the grid structure such that the wider dimension of the grid structure near the bottom surface of the grid structure provides optical crosstalk protection for the pixel sensors in the pixel array.