Canon Kabushiki Kaisha

Koji Tsuzuki

Yoshifumi Takeyama

Tsutomu Murakami

Koichi Shimizu

Takehito Yoshino

Takeshi Takada

Yoshimitsu Hayashi

Shozo Kasai

Tsunenobu Satoi

Masayuki Kusakari

Satoru Yamada

Nobuyoshi Takehara

Tatsuo Fujisaki

Katsuhiko Inoue

Toshihiko Mimura

Ichiro Kataoka

Hidenori Shiotsuka

Masahiro Mori

Akiharu Takabayashi

Hirofumi Ichinose

Masaaki Matsushita

Ayako Komori

Hitoshi Toma

Akio Hasebe

Satoshi Shinkura

Ippei Sawayama

Shigeo Kiso

Hideaki Zenko

The present invention relates to a method and apparatus for partial etching or pattern etching using an electrolysis reaction, wherein, conventionally, there was the problem that an etching line could not be finely formed on a cell edge because of apparatus problems concerning alignment accuracy. The present invention provides a method and apparatus with which fine line etching is possible and which can form a line on a cell edge. Provided is a an electrolytic etching method of a substrate which is formed having a subject etching layer on a surface, having the steps of providing a fixed gap from a substrate end surface which is external to an end surface of the substrate for placing a working part of a working electrode and passing current between the substrate and the working electrode.

Electrolytic etching method and method of producing a solar battery

Electrolytic etching method and apparatus

Before electrically connecting at least two photovoltaic elements, a medium capable of absorbing at least 10% or more of a light having a wavelength of 0.4 &#x3bc;m to 2.0 &#x3bc;m is provided on an electric connection portion of the photovoltaic element, whereby the present invention provides a method of electrically connecting a group of photovoltaic elements to one another with a high yield and easy automatization.

Non-contact treatment method

A photovoltaic element having an electrode structure having joining portions (A) in which collecting electrodes are spacedly arranged on a light receiving face side of the photovoltaic element such that they are individually joined to a bus bar electrode. Each of the joining portions (A) has a first joining portion (i) having a first paste. Each of collecting electrodes (b) excluding the collecting electrodes (a) positioned at opposite end sides of the arrangement of the collecting electrodes further has a second joining portion (ii) having a second paste with a smaller resistivity than that of the first paste. A proportion of the first joining portion (i) in the joining portion (A) of each of the collecting electrodes (a) is greater than a proportion of the first joining portion (i) in the joining portion (A) of each of the collecting electrodes (b). A process for the production of the photovoltaic element.

Photovoltaic element and process for the production thereof

A photovoltaic element having a wire disposed on a surface of the photovoltaic element for outputting a power generated by the photovoltaic element, and an electrode electrically joined with the wire while forming a joining portion, wherein the joining portion of the wire and the electrode has at least a first joining portion and a second joining portion which is adjacent to the first joining portion, and the second joining portion has an elasticity which is greater than that of the first joining portion. A process for the production of the photovoltaic element. A method for forming an electrical continuity between a covered wire and a conductor, including a method of removing a cover portion of the covered wire and a method of joining the covered wire with the conductor.

Photovoltaic element, process for the production thereof, method for removing a cover portion of a covered wire, and method for joining a covered wire and a conductor

Before electrically connecting at least two photovoltaic elements, a medium capable of absorbing at least 10% or more of a light having a wavelength of 0.4 &mgr;m to 2.0 &mgr;m is provided on an electric connection portion of the photovoltaic element, whereby the present invention provides a method of electrically connecting a group of photovoltaic elements to one another with a high yield and easy automatization.

Method of producing photovoltaic element module

In a photovoltaic device module comprising a plurality of photovoltaic devices connected electrically through a metal member, an insulating member is so provided as to avoid contact between an edge portion of the photovoltaic device and the metal member. This can provide a photovoltaic device module which is inexpensive, easy to operate and highly reliable.

Photovoltaic device module

Photovoltaic element module and its production method, and non-contact treatment method

A moldless semiconductor device comprising a semiconductor chip held between outer-connecting terminals and connected electrically to the terminals is provided. At least one of the two terminals has, at its region contiguous to the semiconductor chip or at its region contiguous to the semiconductor chip and a region vicinal thereto, a hardness different from all other regions of the one terminal. This moldless semiconductor device can withstand significant external force and exhibits high reliability when used in photovoltaic device modules.

Moldless semiconductor device and photovoltaic device module making use of the same

By inspecting an electrical wiring route of a solar cell module while applying a load to the solar cell module, it is possible to more accurately judge the presence or absence of a defect in the electrical wiring route of the solar cell module.

Inspection method and production method of solar cell module

A process for producing a solar cell module comprising at least a photovoltaic element module is provided. The photovoltaic element module is formed by electrically connecting a plurality of photovoltaic elements with each other, after the individual photovoltaic elements are identified or classified into a plurality of groups which are different from each other in property and attribute. The photovoltaic element module is formed such that at least two kinds of photovoltaic elements having different property and attribute co-exist therein. A solar cell module having at least a photovoltaic element module comprising a plurality of photovoltaic elements electrically connected with each other is also provided; the plurality of photovoltaic elements comprises photovoltaic elements identified or classified into at least two kinds which are different in terms of property and attribute.

Solar cell module and a process for producing said solar cell module

A photovoltaic element with a low shadow, a high energy conversion efficiency, a high freedom in dimension and a high reliability with prolonged use is provided. The photovoltaic element comprises a photovoltaic layer having a first semiconductor junction layer for generating an electromotive force, a current collecting electrode provided at the light incident side of the photovoltaic layer, and a bypass diode connected in parallel, wherein the bypass diode is provided under the current collecting electrode as a bypass diode layer having a second semiconductor junction layer other than the first semiconductor junction layer of the photovoltaic layer.

Photovoltaic element and production method therefor

A solar cell module or a solar cell module which is provided with a readable and writable memory medium capable of writing in a large quantity of information of said solar cell module and capable of reading out necessary information from said memory medium. A solar cell system comprising said solar cell module or said solar cell module string. A method for supervising said solar cell module or said solar cell module string.

Solar cell module, solar cell module string, solar cell system, and method for supervising said solar cell module or solar cell module string

A solar cell module has a very agreeable appearance and can carry a large volume of information on the light receiving surface thereof. An information carrying body storing information (including, for example, the date, the process the rated values, the destination of shipment, I-V curve data and other data) for identifying the module is invisibly arranged on the light receiving surface side of the solar cell module (e.g., on the front surface sealing member or the front surface member of the photovoltaic elements).

Growing community of inventors

Ikoma, Japan

Koji Tsuzuki