1987-2012 served in Taiwan Chang Tai Technology Limited (Pacific Data Product INC.), served as engineer, technical support Manager, research and Development Manager.
1987 - 2012 worked in Taiwan Cheong Tai Technology Co., Ltd., served as R & D engineers, technical support manager, R & D manager (Pacific Data Product INC.).
1987-2012, worked in Taiwan Changtai Technology Co. (Pacific Data Product INC.), successive research and development engineer, technical support Manager, research and development department manager.