A method for forming a back-illuminated image sensor
An image sensor, back-illuminated technology, applied in the field of image sensors, can solve the problems of complex process and high production cost of back-illuminated image sensor devices, and achieve the effects of uniform concentration distribution, reduced production costs, and high position accuracy
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[0028] As mentioned in the background art, the manufacturing cost of the back-illuminated (BSI) image sensor is relatively high, and the manufacturing process is relatively complicated.
[0029] Therefore, the present invention provides a method for forming a back-illuminated image sensor. In the process of forming the back-illuminated image sensor, no additional epitaxial silicon layer is formed, which reduces the manufacturing cost of the back-illuminated image sensor.
[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the present invention in detail, for convenience of explanation, the schematic diagrams will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which shall not limit the protection scope...
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