Camera module

Abstract

The invention provides a camera module. The camera module comprises an image sensor and an optical filter, wherein the image sensor comprises an optical sensing surface for receiving incident light imaging, the optical sensing surface comprises a sensing area and a non-sensing area surrounding the sending area, and multiple bonding pads are formed in the non-sensing area. At least one metal ball is stacked on at least three bonding pads; the number of the metal balls of each bonding pad is the same, and the optical filter is arranged on the metal balls. According to the camera module, by use of the metal balls, the image sensor and the optical filter can be isolated at a quite long distance so that the effects exerted on imaging quality by dust possibly adhered to the optical filter can be reduced, and the imaging quality is improved.

Description

technical field [0001] The invention relates to a camera module, in particular to a camera module with a filter. Background technique [0002] A camera module generally includes an image sensor and a filter. The filter can be directly arranged on the image sensor by coating glue on the non-sensing area of ​​the image sensor, and close the sensing area of ​​the image sensor. However, it is inevitable that dust will adhere to the filter during the manufacture and use of the camera module. Therefore, it is always desired that the distance between the filter and the image sensor be as large as possible. The projection on the measurement area will become smaller, and the image will be smaller, so the image quality will be smaller. However, the glue is liquid before curing, and the filter needs to be pressed down during the process of adhering the filter. As a result, the height that can be maintained after the glue is cured is often small, and the distance between the filter an...

AI Technical Summary

Problems solved by technology

However, it is inevitable that dust will adhere to the filter during the manufacture and use of the camera module. Therefore, it is always desired that the distance between the filter and the image sensor be as large as possible. The projection on the measurement area will become smaller, and the image will be smaller. In this way, the image quality will be smaller

However, the glue is liquid before curing, and the filter needs to be pressed down during the process of adhering the filter. As a result, the height that can be maintained after the glue is cured is often small, and the distance between the filter and the image cannot be separated sensor, therefore, the imaging quality is greatly affected by dust, which is often not ideal

Images