Introduction of camera module glue removal process

With the popularization of products such as mobile phones and security cameras, the camera industry has also developed vigorously. Camera module, full name cameracompact module, can be abbreviated as ccm, is an electronic device that is crucial for image capture. Today we will learn about the process of removing glue from the camera module.

CCM includes four major components: lens (lens), sensor (sensor), soft board (fpc), image processing chip (dsp). The sensor is the core module of ccm, and there are two kinds widely used at present: one is the widely used ccd (charge coupled) element; the other is cmos (complementary metal oxide conductor) device.

In the production process of the camera module, a relatively important link is the bonding process of the camera, which will not only affect the assembly stability of the camera module, but also affect the lens yield rate during the finished product test. The glue dispensing process of the lens plays a vital role in the subsequent product testing after the camera module is focused. Even if the quality of the camera module is relatively excellent during the focusing process, once the glue is dispensed improperly, it will affect the subsequent finished product test, resulting in the camera module being unusable and scrapped.

Lens dispensing is more and more pursuing a fast, high-strength, and easy-to-repair camera module bonding process. The lens dispensing adhesive selected is shadowless glue, which is usually referred to as UV glue. UV glue refers to a kind of adhesive that must be irradiated by ultraviolet light. It has a fast curing speed and can change from liquid to solid in a few seconds. It has excellent bonding effect on the bonding of plastics and various materials, so , are widely used. The fast curing and high bonding strength of UV glue are conducive to improving work efficiency and shortening the dispensing time. However, during the dispensing process, the glue often overflows and contaminates the surface of the product, which affects product quality. The fast curing of UV glue makes it impossible for people to quickly react on the residual glue. The cured UV glue sticking to the surface of the product can only be removed by scraping with a knife. The knife scraping method not only requires the size of the product, but also The smaller it is, the harder it is to remove, and it may cause damage to the surface of the product, making it impossible to assemble the product.

After the focus adjustment of the camera module is completed, UV glue needs to be applied to fix the lens, and then a finished product test will be carried out, and a batch of defective products will appear in the finished product test. Although there is no problem with the lens quality of these defective products, the glue liquid overflows to the surface of the lens module due to improper dispensing of UV glue, and the rapidly formed cured UV glue sticks to the petals and threads of the lens module. The scratching method cannot penetrate into the inner surface of the petals and threads, making it more difficult to remove the cured UV glue, which affects the assembly and auto-focus function of the module in the finished product. Therefore, it is impossible to reuse the lens module with residual UV glue. cause scrap. This not only increases the manufacturing cost of the product, but also wastes the production resources of the lens, which is not conducive to the development of the product. No matter how careful the dispensing operation is, it is difficult to avoid the generation of residual UV glue. How to effectively remove cured UV glue and reduce production costs is a major challenge for the majority of industry players.