Sanyo Electric Co., Ltd.

Nobuo Hanehira

Masayoshi Ono

Hiroyuki Mori

Yoshinobu Takabatake

Hidekazu Shuto

Wataru Shinohara

Yasuaki Yamamoto

Takahiro Haga

Masayoshi Maeba

Masanori Kaji

Toshihiro Nomura

Masato Nishikuni

Yoshinori Wakamiya

A photovoltaic device including a photovoltaic module disposed on or above an insulating substrate , which is provided with holes for receiving conducting paste terminals of the module formed on the substrate . A plurality of conducting materials are connected electrically with the conducting paste terminals , and a protective resin film is provided to protect the terminals. The protective resin film has openings at positions corresponding to the conducting materials , and the openings are larger than the topside shape of the conducting materials . The conducting materials are disposed inside of the openings.

Photovoltaic device and a method of manufacturing thereof

In this method of solar battery output section fabrication, a metal foil is attached to an output terminal on a substrate surface, or a resin film is disposed over a conductive paste as the output terminal on the substrate surface. Subsequently, an opening is cut-out from the back side of the substrate to the metal foil or the conductive paste with a periphery cutter. Or, after the metal foil and a front side protective film is provided over the output terminal on the substrate surface, an opening is cut-out from the surface of the front side protective film to the metal foil with a periphery cutter.

Method of solar battery output section fabrication

This invention manufactures a photovoltaic device by the following process steps: a step to form a first electrode layer and a light-active semiconductor layer on an insulating surface of the substrate; a step to form a transparent conducting film over most of the insulating surface including the light-active semiconductor layer; a step to establish a patterned transparent protective layer on the transparent conducting film over power generating regions; and a step to irradiate ultraviolet laser light over most of the substrate to remove exposed portions of the transparent conducting film not masked by the pattered transparent protective layer and form a transparent conducting layer corresponding to the pattered transparent protective layer. The patterned transparent protective layer serves a dual purpose as masking material for removing the specified areas of the transparent conducting film by ultraviolet laser and as a transparent protective layer. Accordingly, material that is passed by visible light but not passed by ultraviolet light is used as the patterned transparent protective layer.

Method of manufacturing a photovoltaic device

The solar battery output section has a hole provided through the substrate and through an output terminal formed on the front-side of that substrate. Metal foil is applied covering the hole on the backside of the substrate. The inside of the hole is filled with conducting material to electrically connect the output terminal and the metal foil. Finally, a protective resin film is applied over the substrate, and a wire lead is solder attached to the metal foil on the backside of the substrate.

Solar battery output section and its method of manufacture

Growing community of inventors

Tsuna-gun, Japan

Nobuo Hanehira