Bonding Wire Production Line
Gold bonding wire
Gold bonding wire, also known as ball welding gold wire or lead gold wire, is a high-purity gold alloy wire, its gold content is usually not less than 99.99%, and the wire diameter is generally between 18 and 50 microns. This gold wire plays a vital role in integrated circuit manufacturing and semiconductor packaging.
Bonded wire has the following key properties that make it an ideal packaging material:
1. Mechanical strength: the gold wire can withstand the stress generated during the resin packaging process, and has enough breaking force and extension force to ensure that it is not easy to break during the packaging process.
2. Ball forming characteristics: The gold wire can form a good welding ball during the welding process, which is essential for achieving reliable electrical connections.
3. Bonding: The surface of the gold wire should be free of scratches, dirt, dust and other adhesives to ensure that there is sufficient bonding strength between the semiconductor chip and the lead frame.
4. Operability: gold wire is not easy to get stuck in the processing process, high diameter accuracy, no curling on the surface, easy to automate production.
5. Welding quality: smooth solder joint, no ripple, to ensure good electrical performance and appearance quality.
Application of gold bonding wire
Bonded wire is widely used in many fields because of its excellent properties:
1. Semiconductor packaging: In integrated circuit manufacturing, bonding wire is used as an electrical connection material between the chip and the package substrate. It can realize the electrical connection between the input/output bonding point of the circuit in the chip and the internal contact point of the lead frame, and is an indispensable material in semiconductor packaging.
2. Automotive electronics: With the improvement of the degree of automotive electronization, bonded metal wire has been widely used in the manufacture of electronic components in automotive control systems. It is used to connect key components such as sensors, control units and electric drive systems to ensure the stability of the vehicle control system.
3. Communication equipment: In the context of the rapid development of 5G and the Internet of Things, bonded wire plays an important role in the assembly of antennas, wireless modules and optical modules. It ensures the stable transmission of signals in the communication equipment and improves the performance of the equipment.
4. Aerospace: In the aerospace field, bonded wire is used to make small connections in electronic components. Due to the high temperature, high stress and high reliability requirements of aerospace equipment, bonded wire is the ideal choice due to its excellent performance.
5 Medical devices: In medical equipment and diagnostic instruments, bonded metal wire also plays an important role. It is used to connect various sensors, control circuits and display modules to ensure the accuracy and stability of medical devices.
