Test Board is a special circuit board used to verify the functions of electronic components or systems. Its core function is to simulate the actual working conditions of target devices, detect their electrical performance, signal integrity and stability, and it is a key tool in electronic R&D and manufacturing. Test boards are mainly divided into probe cards, load boards, burn-in boards and other types, adapting to SMT patch technology, supporting high-precision signal transmission, with the characteristics of high flatness, high reliability and strong anti-interference, and can be used with test instruments such as oscilloscopes and multimeters. These test boards have precise wiring, some adopt copper substrates to improve heat dissipation efficiency, adapt to IC chips of different packages, and are widely used in semiconductor R&D, consumer electronics, industrial automation and other scenarios. They can quickly find design defects and manufacturing problems. Test boards help enterprises improve product yield, shorten R&D cycles, and are core components to ensure the quality of electronic products.