Canon Kabushiki Kaisha

Tsutomu Murakami

Koji Tsuzuki

Hirofumi Ichinose

Koichi Shimizu

Yoshifumi Takeyama

Akio Hasebe

Yukie Ueno

Satoshi Shinkura

Masahiro Kanai

Takehito Yoshino

Shunichi Ishihara

Koichi Matsuda

Katsumi Nakagawa

Yasushi Fujioka

Kozo Arao

Jinsho Matsuyama

Takayoshi Arai

Masaya Hisamatsu

Akira Sakai

Soichiro Kawakami

Shozo Kasai

Tsunenobu Satoi

Toshihiro Yamashita

Ippei Sawayama

Masayuki Kusakari

Yoshimitsu Hayashi

Satoru Yamada

Hiroshi Yamamoto

Takeshi Takada

Kouji Tsuzuki

Takahiro Mori

Masafumi Sano

Isamu Shimizu

Ichiro Kataoka

Hidenori Shiotsuka

Masahiro Mori

Akiharu Takabayashi

Masaaki Matsushita

Tatsuo Fujisaki

Ayako Komori

Mitsuyuki Niwa

Naoto Okada

Eiji Takeuchi

Shigeo Kiso

Hideaki Zenko

Takafumi Midorikawa

Kouichi Shimizu

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 device having a first electrode comprising a metallic wire, a second electrode connected to the first electrode, and a joint portion composed of conductive particles and a resin. The joint portion is arranged between the metallic wire constituting the first electrode and the second electrode. A volume density of the conductive particles in the joint is decreased in a direction from a surface of the second electrode to a surface of the metallic wire constituting the first electrode.

Photovoltaic device and process for the production thereof

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 process for producing a stable photovoltaic element having an electrode structure comprising a collecting electrode and a metal bus bar which are connected to have an improved connection between them. Said electrode structure is formed by dotting an electrically conductive paste onto a metal wire as the collecting electrode such that a dotted electrically conductive paste has an elliptical form whose major axis and minor axis are respectively perpendicular to and parallel to a lengthwise direction of said metal wire, arranging the metal bus bar on said dotted electrically conductive paste, and heating the resultant while pressing it to cure the electrically conductive paste to form connection between the metal wire as the collecting electrode and the metal bus bar.

Process for producing a photovoltaic element

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

An electrolytic etching method for etching treating an object to be etched by an electrochemical reaction through an electrolyte between the object to be etched and an etching electrode, where the contact angle of the electrolyte to the object to be etched is not more than 70&deg;. This electrolytic etching method can etch the object in a non-contact manner, can reduce the cost, number of steps, and processing time, and can enhance the patterning accuracy.

Electrolytic etching method, method for producing photovoltaic element, and method for treating defect of photovoltaic element

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 and method for producing the same

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

Growing community of inventors

Nara, Japan

Tsutomu Murakami