June 2008, following the world's leading manufacturer of polysilicon materials Hao shamrock (Hemlock) Semiconductor Corporation announced that its Michigan polysilicon production plant to expand production capacity more than doubled, other polysilicon manufacturers have announced to the outside world after another, the relevant device capacity expansion. 

After this round of expansion, the global polysilicon shortage situation will be effectively improved, thus helping to alleviate the solar photovoltaic industry in recent years have suffered the pain of a shortage of silicon materials. Allegedly, Hao shamrock new plant capacity is about 9900 tons, 2008, at the end put into production, the company's polysilicon production capacity will increase to 21,000 tons years. 

   In recent years, the solar industry has become an important application of polysilicon materials market. Over the past 30 years, the solar photovoltaic industry, polysilicon materials used in the semiconductor industry is far below, therefore, for the supply of silicon photovoltaic industry is mostly out of the semiconductor industry supply chain, or the rest of the scrap. However, from 2004 onwards, the global semiconductor industry, or whether the china solar panel industry has shown a trend of silicon materials in short supply, especially since 2006, the solar photovoltaic industry is accelerating, the polysilicon market gap is growing. The rapid development of solar energy industry is silicon material manufacturer has brought huge returns. 

   Materials used for the manufacture of high-purity polycrystalline silicon computer chips different, it is a multilayer structure instead of a single crystal can be made into a monolithic crystal structure is mainly used as the semiconductor devices and solar inverter manufacturers photovoltaic facilities of raw materials. According to the concept of solar energy consulting firm Sage (SageConcepts) said that the current polysilicon material costs have been accounted for the entire cost of solar cells by 20%. 

   Hao shamrock is a semiconductor company Dow Corning, Shin-Etsu Semiconductor and Mitsubishi Materials established a tripartite joint venture company, is the world's largest solar and semiconductor industry supply silicon manufacturers. The company's first polysilicon production plant is built in 1960 Dow Corning Corporation. To 2006, the company has implemented polysilicon production base has 10 times expansion project. However, Hao shamrock semiconductor company is not satisfied with this, it plans to further expand the production capacity of polysilicon production bases to the end of 2011, the production capacity to 39,000 tons year