Patent ID: 7846823
Filing Date: 2010-12-07
Classification: H01L,Y02E

Abstract:
1. The manufacturing method of a solar cell comprising the step of: applying a masking paste containing SiO drying the paste after the step of applying a paste containing SiO baking the paste in an oxygen atmosphere to form a mask for controlling diffusion of a dopant, diffusing the dopant to form a patterned diffusion layer, wherein a masking paste used as said mask for controlling diffusion is manufactured by preparing a mixed liquid containing (a) a formula R′ (b) a solvent, (c) an acid, and (d) water, and then vaporizing alcohol by heating at a temperature not lower than the boiling point of the alcohol produced by a hydrolysis reaction of said (a) and not higher than the boiling point of the solvent.