Slight Decline in Third Quarter 2011 Silicon Wafer Shipments

SAN JOSE, Calif. – November 2, 2011 – Worldwide silicon wafer area shipments decreased two percent during the third quarter 2011 when compared to second quarter 2011 area shipments according to the SEMI Silicon Manufacturers Group (SMG) in its quarterly analysis of the silicon wafer industry.

Total silicon wafer area shipments were 2,354 million square inches during the most recent quarter, a two percent decrease from the 2,392 million square inches shipped during the previous quarter. New quarterly total area shipments are five percent less than third quarter 2010 shipments.

"Silicon shipments for the most recent quarter are reflecting the general hesitancy of the market,” said Dr. Volker Braetsch, chairman of SEMI SMG and corporate vice president, Siltronic AG. “While total silicon shipments have softened, 300mm diameter wafers actually shipped in record volumes.”

Quarterly Silicon Area Shipment Trends

Semiconductor Silicon Shipments* - Millions of Square Inches


Million of Square Inches


Q3 2010

Q2 2011

Q3 2011





*Shipments are for semiconductor applications only and do not include solar applications

Silicon wafers are the fundamental building material for semiconductors, which in turn, are vital components of virtually all electronics goods, including computers, telecommunications products, and consumer electronics. The highly engineered thin round disks are produced in various diameters (from one inch to 12 inches) and serve as the substrate material on which most semiconductor devices or "chips" are fabricated.

All data cited in this release is inclusive of polished silicon wafers, including virgin test wafers, epitaxial silicon wafers, and non-polished silicon wafers shipped by the wafer manufacturers to the end-users.

The Silicon Manufacturers Group acts as an independent special interest group within the SEMI structure and is open to SEMI members involved in manufacturing polycrystalline silicon, monocrystalline silicon or silicon wafers (e.g., as cut, polished, epi, etc.). The purpose of the group is to facilitate collective efforts on issues related to the silicon industry including the development of market information and statistics about the silicon industry and the semiconductor market.

SEMI is the global industry association serving the nano- and microelectronic manufacturing supply chains. SEMI member companies are the engine of the future, enabling smarter, faster and more economical products that improve our lives. Since 1970, SEMI has been committed to helping members grow more profitably, create new markets and meet common industry challenges. SEMI maintains offices in Beijing, Bengaluru, Berlin, Brussels, Grenoble, Hsinchu, Moscow, San Jose, Seoul, Shanghai, Singapore, Tokyo, and Washington, D.C. For more information, visit

Association Contacts

Deborah Geiger/SEMI
Tel: 1.408.943.7988

Dan Tracy/SEMI
Ph: 408.943.7987

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