This laser micro-etching machine is designed for pattern production on substrates made of thick films. The dust generated in the process of laser micro-etching on thick films tends to result in low yield rates because it causes defection and failure. This patented laser machine solves the above problem by finishing the surface of thick films that are hung upside-down. The dust falls off, so it does not damage the surface. Vacuum cleaning is employed at the bottom simultaneously. Subsequent cleaning is not required. Hortech integrates the high-precision, upside-down motion control module with the optical focus system to develop this laser machine. Precision laser finishing is employed when the machine is undertaking upside-down motion control. The dust is removed by the negative pressure. This process enables stable high-volume production with high yield rates.