From Wikipedia, the free encyclopedia
Jump to: navigation, search
SEMI logo
Formation 1970
Founder Bill Hugle, Fred Kulicke, John Dannelly
Type Industry organization
Board of Directors Chairman
Yong Han (YH) Lee
President and CEO
Ajit Manocha
Formerly called
Semiconductor Equipment and Materials International; Semiconductor Equipment and Materials Institute

SEMI (formerly Semiconductor Equipment and Materials International) is a global industry association of companies that provide equipment, materials and services for the manufacture of semiconductors, photovoltaic panels, LED and flat panel displays, micro-electromechanical systems (MEMS), and related micro and nano-technologies.[1]

SEMI is headquartered in Milipitas, California, and has offices in Bangalore; Berlin; Grenoble, France; Hsinchu, Taiwan; Seoul; Shanghai; Singapore; Tokyo; and Washington, D.C.[2] Its main activities include conferences and trade shows, development of industry standards, market research reporting, and industry advocacy.[3]

Conferences and trade shows[edit]

SEMI was founded in 1970 as an association of semiconductor production equipment vendors. At that time, most companies in the semiconductor industry exhibited at the Wescon Show on the west coast and the IEEE show on the east coast. Wishing to organize a show dedicated to semiconductor production equipment, 55 companies met in Palo Alto and agreed to found a new association, originally called Semiconductor Equipment and Materials Institute.[4]

The first SEMICON show was held in 1971 at the San Mateo Fairgrounds in California. It featured 80 exhibitors and attracted 2,800 visitors.[5] In 1973, the first SEMICON East show was held in New York City, with 120 exhibitors participating. This was followed by SEMICON Europa in Zurich, Switzerland (1975) and SEMICON Japan in Tokyo (1977), which attracted more than 200 exhibitors and 4,500 visitors.[5]

Today SEMI organizes and produces nearly 100 trade shows, conferences and special events per year in all of the major manufacturing regions of the world. They include trade shows in China, Japan, Taiwan, North America, and Europe, as well as executive conferences, technical programs, and standards meetings.[6]

SEMI standards[edit]

The SEMI Standards program was established in 1973 using proceeds from the west coast SEMICON show. Its first initiative, following meetings with silicon suppliers, was a successful effort to set common wafer diameters.

Today, over 800 SEMI standards and safety guidelines are available to address all aspects of automated fabs. The standards are developed and maintained by over 3,600 volunteer experts representing more than 700 companies, working in 23 technical committees and 200 task forces.[7] High-profile standards include wafer dimensions and materials, factory efficiency and reliability, equipment interfaces, and environmental, health and safety standards.[7] All standards are available online on an annual subscription basis.

Market research reports[edit]

SEMI provides market research reports for the semiconductor equipment, materials, and LED industries. Its book-to-bill data is considered an important leading indicator of demand trends and is closely watched within the industry and by semiconductor market analysts and investors.

The semiconductor equipment book-to-bill report provides a three-month rolling average of the book-to-bill ratio for semiconductor equipment manufacturers with headquarters in North America. It is released approximately three weeks after the close of each month.[8]

Data for the reports is collected directly from suppliers through a confidential data collection program via an independent financial services company.[9] Findings are announced in press releases, and in-depth reports are made available to program participants and subscribers to SEMI's data services.

There are data collection programs in the following areas.[10]

  • Semiconductor capital equipment
  • Flat panel display capital equipment
  • Polysilicon and silicon wafers
  • Electronic gases
  • Photoresists & ancillary products
  • Mass flow controllers
  • Leadframes

In-depth reports are broken down by region, supply chain segment, and equipment type.

See also[edit]


  1. ^ "About SEMI". SEMI. Retrieved 2014-10-15. 
  2. ^ "Offices". SEMI. Retrieved 2017-06-02. 
  3. ^ "SEMI - Regions". SEMI. Retrieved 2014-10-15. 
  4. ^ "William Hugle, Silicon Valley pioneer and SEMI founder, dies at age 76". EE Times. November 16, 2003. Retrieved 2014-10-15. 
  5. ^ a b "Semiconductor Equipment and Materials Industry Timeline". SEMI. Retrieved 2014-10-15. 
  6. ^ "Events and Tradeshows". SEMI. Retrieved 2014-10-15. 
  7. ^ a b "Overview of the SEMI International Standards Program" (PDF). SEMI. July 12, 2011. Retrieved 2014-10-15. 
  8. ^ "SEMI® Book-to-Bill Report". SEMI. Retrieved 2014-10-15. 
  9. ^ "Data Collection Methodology". SEMI. Retrieved 2014-10-15. 
  10. ^ "SEMI Data Collection Programs". SEMI. Retrieved 2014-10-15. 

External links[edit]