| 摘要 |
PURPOSE: A method for inspecting a printed circuit board of a built in chip type is provided to accurately measure by comparing raw data with a measured distance. CONSTITUTION: A substrate is comprised of a copper circuit (10) and a resin insulating layer. A cavity (20) is formed at the substrate. The chip is mounted at the cavity. The station coordinate of the x and y of a cavity shied (21) is detected. The station coordinate of the x and y of the chip is detected. |
