Standards and Safer Equipment Designs for a Safer Working Environment in the LED Industry

Standards and Safer Equipment Designs for a Safer Working Environment in the LED Industry

By SEMI Taiwan

Safety hazards due to faulty designs in industrial equipment lead property damage and loss of personnel, and in severe cases can even disrupts the operation of a corporation or an entire industry chain. To promote a safe working environment, improve work-related safety standards, and reduce the environmental impact of industrial equipment, TOSIA (Taiwan Optoelectronics Semiconductor Association), SEMI, and Epistar co-hosted the "Equipment Safety Seminar," which attracted many participants from related industries. The seminar was also or-organized and supported by Science Park Administration, Industrial Technology Research Institute and Pre-opening Office of Chinese Industry Safety and Disaster Prevention Association.

Professor Chen Chiun-Hsun, dean of the College of Engineering at National Chiao Tung University, pointed out in his remarks that equipment safety is an important issue in industrial management. The semiconductor industry in Taiwan suffered several major fires in its early years, which forced the industry to focus on the importance of equipment safety. Since then, the semiconductor industry has emerged as a pillar of technological achievement in Taiwan. In the future, safety and power conservation features will be integrated into cleaner and safer industrial hardware solutions.

EHS committee chair of TOSIA and also EHS department director of Epistar, Lin Mo-Rong, highlighted Taiwan LED industry’s importance in the global market and as well as the importance of involving in the environment safety.  He mentioned that the LED industry should leverage the success from semiconductor and FPD industry, in which SEMI standards have been used and recognized for a long time. The goal of the task force is not only to enhance the current industry standards, but also help the industry to embed the standards into the procurement procedure and strategic development plan.  By advocating the importance of industry standards, the task force will minimize the gap between the industry standards and practical solutions. With this task force, the LED industry will become a safer industry with the safer working environment. 

Chao Wei-Liang, PMC engineer, brought out a standard for electrical safety designs, test items, protection of electrical devices against electric shock and control panel specifications etc. By applying to SEMI S22, some problems were solved, like overheating issue due to faulty component designs, or fire hazards due to overloaded equipment.

Wang Ching-Song, PMC engineer, introduced reliability analysis of safety circuitry and EN ISO 13849-1 evaluation. He also mentioned cases studying circuit types, average time of hazardous failures, scope of diagnosis, and common cause failures etc.

Wang Jun-Ren, a director at Epistar, described their internal process of implementing equipment safety standards, adopting green energy and safety measures into the manufacturing process to lower the risk of accidental hazards.  Additionally, a task force was created to work with suppliers in developing a similar safety standard for semiconductor equipment. The goal is to create a safe working environment with safe equipment for the operators.

Lin Chien-Chong, a director at Scientech, discussed the safety regulations and applications for chemical washing equipment. Topics discussed included design planning and risk analysis, material requirement and selection, safety control card, fire system planning, ventilation analysis, earthquake analysis, and hazardous warning indicators etc.

Chang Wei-Che, PMC engineer, introduced leakage tests for toxic chemical gasses covered by Semi S6, EN 13185, and ISO 29042-2 standards, including inspection equipment, case studies, and testing procedures for MOCVD gases.

Due to the fact that fires lead to the greatest level of property loss, every piece of SEMI standard focuses on fire protection. Hsu Yong-Cheng, project manager at PMC, stressed the relationship between chemicals and fire protection. He then brought out several case studies to discuss more details on fire hazard analyses and fire protection, and provided suggestions to these cases.

EHS is critical, and the whole industry has wide-ranging responsibility for ensuring that businesses are properly operated to prevent from disaster and damage. LEDs are  considered one of the industries to bring a greener world, and we should be committed to sound, long-term, sustainable operations and working environment.  For more information on SEMI EHS relative standards, please visit:


June 4, 2013