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Color Filter & Micro-lens

Color Filter & Micro-lens

VisEra dedicates on developing wafer level image sensor (CMOS Image Sensor) by combining semiconductor process and optical image design & process technologies. To compare the benefits with traditional CCD Sensor, CMOS Image Sensor has more advantages in low cost, low power consumption, direct read-out capability of images and integrated camera functions in single chip.

Technology_Top_view_and_cross_section_view_of_CMOS_Image_Sensor Top view and cross-section view of CMOS Image Sensor

CIS technology focuses on two portions: Color Filter (CF) and Microlens (ML.) Color filter dominates the color accuracy of sensor and micro-lens improves the sensitivity of sensor. The technologies are indispensable in obtaining the image sensing quality. Both could be applied in traditional Front Side Illumination (FSI) and more advanced Back Side Illumination (BSI.).

Technology_CIS_CF_ML_process_brief_flow CIS CF/ML process brief flow
Technology_Color_Filter_Array_example_patterns_and_optional_color_pixels Color Filter Array example patterns and optional color pixels
Technology_Micro_Lens_mask_design Micro Lens mask design
Technology_non_reflow_type a)non-reflow type
Technology_reflow_type b)reflow type
Technology_Examples_of_Micro_Lens_types_and_shapes Examples of Micro Lens types and shapes