Triode image sensor

• Main Authors: SONG DONG, ZHANG LEI, YANG JINSU, ZHANG TING, SHEN QIUHUA, DU XIAOSONG
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention discloses a triode image sensor. The triode image sensor comprises: a driving backboard provided with a plurality of via holes arranged regularly, wherein each image sensing unit comprises a VDMOS device, and the VDMOS device is arranged on the driving backboard and at least covers one via hole; and a first thin film packaging layer, a common cathode, a second thin film packaging layer, a light filtering layer and a glass packaging layer. According to the invention, intrinsic amplification is provided for current carriers through the conductance gain of the VDMOS device, so that the electric noise in the micro-image sensing device can be remarkably reduced, and high-gain driving of a high-resolution micro-display is realized. 本发明公开了一种三极管图像传感器，包括：驱动背板，所述驱动背板上设有若干规则排列的过孔；每个图像传感单元内均包括VDMOS器件，所述VDMOS器件设置在驱动背板上，至少覆盖一个所述过孔；还包括第一薄膜封装层、共阴极、第二薄膜封装层、滤光层和玻璃封装层。本发明通过VDMOS器件的电导增益为载流子提供本征放大，能够显著地降低微图像传感器件中的电噪声,从而对高分辨率微显示器实现高增益驱动。