Chip On Board (COB) is a technology used in electronics where semiconductor chips are directly mounted onto a circuit board. This method allows for a more compact design, as it eliminates the need for traditional packaging. By connecting the chip directly to the board, manufacturers can save space and reduce costs. COB is commonly used in various applications, including LED lighting, displays, and sensors. The process enhances performance by improving thermal management and electrical connections. Overall, COB technology contributes to the miniaturization and efficiency of electronic devices.