Taiwan Standards Efforts Pay Off


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Taiwan Standards Efforts Pay Off

For over 35 years, the SEMI Standards Program has been developing manufacturing Standards for the semiconductor, FPD, and PV industries. While the Program has historically enjoyed strong contributions from members in North America, Japan, and Europe, we are now seeing substantial participation from other regions, particularly Korea and Taiwan.

This stronger regional participation is paying dividends, as I am pleased to announce the publication of three new FPD Standards that originated from the Taiwan FPD Committee. Although Taiwan has previously contributed to Standards efforts led by other regions, these three Standards are the first approved documents that originated in Taiwan.

“SEMI offers an open and trusted platform with a strict procedure of international standards development. It provides a great opportunity for Taiwan to participate and even lead global FPD international technology standards development,” said Dr. Victor Tzeng-Yow Lin, Deputy General Director of the ITRI Center for Measurement Standards. “The newly passed international standards set a benchmark for manufacturers and their suppliers to follow, which not only lower the communication cost but also prevent unnecessary transportation and production risk.”

Measurement Method for Ambient Contrast of Liquid Crystal Displays
Although most consumers use LCDs in bright environments, such as offices or living rooms, existing standards only consider measurement methods for dark room contrast. In addition to providing a measurement method for ambient light conditions, SEMI D56 provides measurement methods for different viewing angles, giving manufacturers a better understanding of their display’s performance in likely actual use.

Definition of Measurement Index (VCT) for Mura in FPD Image Quality Inspection
Mura (brightness non-uniformity defects) are typically checked for by human inspectors, but have always been difficult to quantify. This Standard provides a definition of measurement index which quantifies mura in different sizes and positions based on the response to human perception. In addition, this Standard provides an important basis for realization of automated mura inspection. It will not only save cost and manpower (by reducing labor), but also improve communication between panel makers and buyers by quantifying mura with a common criteria.

Terminology and Test Pattern for the Color Breakup of Field Sequential Color Display
SEMI D58 defines the terminology of the common effect called color breakup in field sequential displays. By standardizing the terminology used to describe the color breakup phenomenon, manufactures do not need spend extra effort to explain this effect to their customers or suppliers. Defining the terminology also makes it possible to establish a measurement method for color breakup.

In addition to FPD, Taiwan has Standards Committees in EHS, Information and Control, and PV. SEMI S26 — Environmental, Health, and Safety Guideline for FPD Manufacturing System benefited from constructive input from Taiwan, and the Taiwan EHS Committee is also involved in revising existing Safety Guidelines, such as SEMI S18 — Environmental, Health, and Safety Guideline for Silane Family Gases Handling.

The Taiwan PV Committee is an important part of the Global PV Standards Committee, consisting of key players from all segments of the PV manufacturing chain—manufacturers of materials, equipment, wafers, cells, modules, and thin films, as well as academia, local industry associations and research institutes. The Committee is at work on multiple standardization efforts, including PV wafer metrology, module vibration test methods, and cell appearance, all sharing the goal of improved industry communication, reduced costs, and greater efficiency.

Shorter product life cycles require fast and timely industrial standards, and I am pleased that Taiwan has chosen the SEMI platform. Taiwan’s experience in manufacturing (companies such as AUO, CMO, TSMC, and UMC are all involved in SEMI Standards) will increase the value of SEMI Standards, and Taiwan may make a vital contribution in promoting the use and development of SEMI Standards in the Greater China economy.

Please join me in congratulating Taiwan on these newly published Standards. Our Standards members in Taiwan have made substantial progress in recent years, and I am excited to see their efforts to reach out and collaborate with other regions. SEMI now has over 350 Standards members from 150 companies in Taiwan, and I look forward to their continued contributions to our global standardization efforts.

Standards Watch, April 2010