| 摘要 |
PURPOSE:To make a substrate inexpensive and to implement light weight, by forming an unfilled hole anode oxide film of a specified film pressure on at least one surface of an Al plate, and forming a ceramic film having a specified thickness on the surface of the anode oxide film. CONSTITUTION:An unfilled hole anode oxide film 3 is formed on one surface of an Al plate 2 in a substrate 1 for an a-Si solar cell to a thickness of 1-10mum. A ceramic film 4 is formed on the surface of the film 3 to a thickness of 1-10mum. Excellent electric insulation is insured between the Al plate 2 and the solar cell to be formed because of the two films of the anode oxide film 3 and the ceramic film 4. Namely, the excellent electric insulation is obtained since both films are overlapped and provided. |
