Quick Guide to Wire Bonding

Wire bonding technology remains the predominant method for first-level interconnections between semiconductor dies and the circuit board, accounting for over 75-80% of these connections in the microelectronics sector annually. The wire bonding equipment market, valued at approximately $800 million in 2022, is projected to surpass $1.6 billion by 2030, driven by the rising demand for increased computing power density, advanced packaging, and the adoption of widebandgap semiconductors.

For Chip-on-Board (COB) designs, where a semiconductor die is attached directly on a circuit board, wire bonding is preferred for its reliability, versatility, and cost-efficiency, offering a mature and established solution. Early widespread use of wire bonding COB can be seen in pocket calculators and electronic greeting cards. The significance of wire bonding is growing in addressing emerging electronics design challenges, such as increased processing power per area, highly integrated and dense LED arrays, image sensors, and high-temperature, high-power density electronics.