What are the applications of laser welding machine technology in mobile phone industry

Today, with the diversification of mobile phone functions, mobile phones have become the representative products of today's smart technology. The structure of mobile phones is becoming more and more refined. In order to achieve perfect inlay and integration of every part, in the current mobile phone processing and production, it is necessary to adopt the high-precision laser welding process to compress the parts. What parts of mobile phones need laser welding? 

Application on the middle frame, outer frame and shrapnel

Mobile phone shrapnel, like a hub connecting 4G and 5G, connects the aluminum alloy middle frame with other material structural parts of the mobile phone middle plate.

The metal middle frame of the mobile phone is connected with other material structural parts of the middle plate of the mobile phone. The metal shrapnel is welded on the conductive position by laser welding, which plays the role of oxidation resistance and corrosion resistance. Materials such as gold-plated aluminum, copper-plated steel and gold-plated steel can also be welded to mobile phone parts through metal parts laser.

The application of usb data line power adapter
USB data cable and power adapter play an important role in our life. At present, many domestic manufacturers of electronic data cable use laser welding technology to produce and weld them.

Because the shielding shell and USB head of the mobile phone data cable are made of stainless steel, the precise welding position is very small. Laser welding machine is a precision welding equipment with small welding heat, which will not damage the electronic components inside during welding. The welding depth is large, the surface width is small, the welding strength is high, and the speed is fast. It can realize automatic welding, and ensure the durability, reliability, and shielding efficiency of the mobile phone data line.

Application between internal metal parts
The traditional welding method is not beautiful, and it is easy to deform the surrounding of the product, and it is easy to occur such situations as desoldering. However, the internal structure of the mobile phone is fine. When welding is used for connection, the area of the welding point is required to be very small, and the common welding method is difficult to meet this requirement. Therefore, most of the welding between the main parts of the mobile phone is laser welding.

The common welding of mobile phone parts include resistance capacitor laser welding, mobile phone stainless steel nut laser welding, mobile phone camera module laser welding and mobile phone RF antenna laser welding. The laser welding machine does not need tool contact in the process of welding the camera of the mobile phone, which avoids the damage of the device surface caused by the contact between the tool and the device surface, and has higher processing accuracy. It is a new microelectronic packaging and interconnection technology, which can be perfectly applied to the processing process of various metal parts in the mobile phone.

Application on chip and pcb board
Mobile phone chips usually refer to chips used for mobile phone communication functions. PCB boards are the support of electronic components and the provider of electrical connection of electronic components. With the development of mobile phones in the light and thin direction, the traditional tin welding is no longer suitable for welding the internal parts of mobile phones.

The laser welding technology is used to weld the mobile phone chip. The welding seam is exquisite and there will be no bad conditions such as desoldering. Laser welding uses the laser beam with high energy density as the heat source to melt and solidify the surface layer of the material into a whole. It has the characteristics of fast speed, large depth and small deformation.

Source: Zichen Laser