SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF
    9.
    发明申请
    SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF 审中-公开
    半导体器件及其制造方法

    公开(公告)号:US20100044821A1

    公开(公告)日:2010-02-25

    申请号:US12538304

    申请日:2009-08-10

    IPC分类号: H01L31/0216 H01L31/18

    摘要: This invention offers a semiconductor device to measure a luminance for the visible wavelength range of light components and its manufacturing method which reduce its manufacturing cost. A first light-receiving element and a second light-receiving element are formed in a semiconductor substrate. Then, there is formed an arithmetic circuit that calculates a difference between a value of an electric current corresponding to an amount of light detected by the first light-receiving element (that is, a value of an electric current representing a relative sensitivity against the light) and a value of an electric current corresponding to an amount of light detected by the second light-receiving element (that is, a value of an electric current representing a relative sensitivity against the light). Next, a first green pass filter permeable only to light in a green wavelength range and an infrared wavelength range is formed to cover the first light-receiving element, while a second green pass filter similar to the first green filter is formed to cover the second light-receiving element. In addition, a red pass filter permeable only to light in a red wavelength range and the infrared wavelength range is formed to cover the second light-receiving element.

    摘要翻译: 本发明提供一种用于测量光分量的可见光波长范围的亮度的半导体器件及其制造方法,其制造成本降低。 第一光接收元件和第二光接收元件形成在半导体衬底中。 然后,形成运算电路,其计算与由第一受光元件检测出的光量相对应的电流值(即,表示相对于光的相对灵敏度的电流值) )和与由第二受光元件检测到的光量相对应的电流值(即,相对于光的相对灵敏度的电流值)。 接下来,形成可以仅透过绿色波长范围和红外线波长范围的光的第一绿色通过滤光片,以覆盖第一光接收元件,同时形成与第一绿色滤光片相似的第二绿色通过滤光片以覆盖第二光接收元件 光接收元件。 此外,形成仅透过红色波长范围的光和红外线波长范围的红色滤光片,以覆盖第二光接收元件。