Patent ID: 6660556
Filing Date: 2003-12-09
Classification: B32B,H01L,Y02E,Y10T

Abstract:
A method of manufacturing a solar battery comprising:laminating a front-side transparent protective member, a sealing layer, solar cells to be sealed by the sealing layer, another sealing layer for sealing the solar cells, and a back-side protective member to make a laminated body, placing the laminated body on a hot plate, heating said laminated body by the hot plate, pressurizing said laminated body by atmospheric pressure while the laminated body is being heated by the hot plate, wherein said sealing layers for sealing the solar cells are EVA films formed of ethylene-vinyl acetate copolymer resin, said EVA film having concavities formed by embossing, and a percentage defined by VH/VAÃ—100% in a range from 5% to 35%, wherein VH is a total volume of said concavities per unit area of said sealing layer, and VA is an apparent volume of said sealing layer which is a product of a maximum thickness of the layer and the unit area.