Patent ID: 7223802
Filing Date: 2007-05-29
Classification: C01B,C08G,C09D,H01L

Abstract:
1. A method of forming a silicon film over a substrate comprising: forming a first liquid material by adding a silane compound to a solvent, the silane compound being represented by the general formula Si irradiating the first liquid material with a light to form a second liquid material including a first polysilane component and a second polysilane component, a molecular weight of the first polysilane component being larger than a molecular weight of the second polysilane component such that the first polysilane component is a precipitate in the second liquid material; removing the precipitate from the second liquid material by filtering to form a third liquid material, a viscosity of the third liquid material being within the range of 1 to 100 m Pa·s; and applying the third liquid material to the substrate.