Optoelectronics and semiconductor industries have been developed for 40 years in Taiwan, and thus the upstream and downstream industrial structure is nearly complete. It has been the key industry with sustainable support from government and with the global innovation opportunity for the future product development. Vacuum CVD deposition used in optoelectronic and semiconductors is a crucia process. The showerhead module is a key component used in the CVD to generate laminar flow of the process gases, which can then be uniformly distributed into the chamber to improve quality and yield rate of deposited films. This article discusses the types and design of various showerhead modules in the CVD deposition equipment and introduces the research status of the showerhead module developed by ITRI. We look forward to establish a technology for key components used in optoelectronic/semiconductor deposition equipment, in order to achieve the long term goal of "technology made domestic and product made high-value".