Hitachi Chemical Company, Ltd.

Naoki Fukushima

Takehiro Shimizu

Isao Tsukagoshi

Kouji Kobayashi

Kaoru Okaniwa

Kazuya Matsuda

Jyunichi Koide

Itsuo Watanabe

Takashi Tatsuzawa

Masahide Kume

Takahiro Fukutomi

Yasuo Tsuruoka

Kenzou Takemura

Yusuke Asakawa

The electric conductor connecting member of this invention comprises a metal foil having a roughened surface on at least one main side, and an adhesive layer formed on the roughened surface of the metal foil.

Conductor connection member, connection structure, and solar cell module

The electric conductor connection method of the invention is a method for electrical connection between a mutually separated first electric conductor and second electric conductor, comprising a step of hot pressing a metal foil, a first adhesive layer formed on one side of the metal foil and a first electric conductor, arranged in that order, to electrically connect and bond the metal foil and first electric conductor, and hot pressing the metal foil, the first adhesive layer or second adhesive layer formed on the other side of the metal foil, and the second electric conductor, arranged in that order, to electrically connect and bond the metal foil and the second electric conductor.

Connecting structure and solar cell module

A solar battery cell and related methodology are provided which enable a TAB wire to be accurately connected to an intended position, thus allowing a possible increase in manufacturing costs to be suppressed. A solar battery cell includes a plurality of finger electrodes arranged on a light receiving surface of a photovoltaic substrate, the light receiving surface having a region of predetermined width to receive a conductive adhesive of a same width as the region. The region is provided with an alignment marking indicating a position where the adhesive is to be applied over the surface, the alignment marking having a cross-dimension in a widthwise direction of the region that is less than the predetermined width.

Solar battery cell, solar battery module, method of making solar battery cell and method of making solar battery module

Method for connecting conductor, member for connecting conductor, connecting structure and solar cell module

The conductive adhesive film of the invention is a conductive adhesive film for electrical connection between photovoltaic cell surface electrodes and wiring members, which comprises an insulating adhesiveand conductive particlesand has a (t/r) value in the range of 0.75-17.5, where r (&#x3bc;m) is the mean particle size of the conductive particlesand t (&#x3bc;m) is the thickness of the conductive adhesive film, wherein the content of the conductive particlesis 1.7-15.6 vol % based on the total volume of the conductive adhesive film.

Conductive adhesive film and solar cell module

A method for electrically connecting a surface electrode of a solar battery cell and a wiring member via a conductive adhesive film, wherein the conductive adhesive film contains an insulating adhesive and conductive particles, and wherein when the ten point height of roughness profile and maximum height of the surface of the surface electrode in contact with the conductive adhesive film are Rz (&#x3bc;m) and Ry (&#x3bc;m) respectively, the average particle diameter r (&#x3bc;m) of the conductive particles is equal to or greater than the ten point height of roughness profile Rz, and the thickness t (&#x3bc;m) of the conductive adhesive film is equal to or greater than the maximum height Ry.

Connected structure and method for manufacture thereof

The present invention provides an adhesive tapefor electrically connecting a plurality of solar battery cells, which adhesive tape has a metal foiland an adhesive layercomposed of an adhesive provided on at least one surface of the metal foil, and a solar battery module using the adhesive tape. The adhesive tape of the present invention can suppress the decrease in the product yield and can improve the connection workability of solar battery cells.

Adhesive tape and solar cell module using the same

A method of connecting solar battery cells, each provided with a front-face and a back-face electrode, comprises: preparing a wiring member including a strip-like conductive substrate and an adhesive layer provided on one face of the substrate, and bonding the adhesive layer on one end portion of the wiring member with the front-face electrode or the back-face electrode of one cell; turning an other end portion of the wiring member having completed the above preparation, around a central axis along a longitudinal direction so an adhesive layer surface of the other end portion is opposite in orientation to an adhesive layer surface of the one end portion; and then bonding the adhesive layer of the other end portion of the wiring member with an electrode of another solar battery cell having an opposite polarity to the electrode of the one cell previously bonded in the aforementioned preparation process.

Solar battery cell connection method and solar battery module

The present invention provides an adhesive film for circuit connection which is to be interposed between circuit electrodes facing each other and used for electrically connecting the circuit electrodes to each other, which comprises a curing agent to generate free radicals with heating, a radically polymerizable substance, and a film-forming polymer, and in which a temporary fixing power to a flexible substrate having the circuit electrode is 40-180 N/m.

Adhesive film for circuit connection, and circuit connection structure

An apparatus includes a connection sheet having a separator layer and an adhesive film layer formed on the separator layer such that said adhesive film layer can be peeled from the separator layer. The cohesive strength of the adhesive film layer decreases when the adhesive film layer is heated to a predetermined temperature. Electronic parts each have an electrode surface and at least one electrode on the electrode surface. The electrode surface of each of the electronic parts is affixed to the adhesive film layer such that the adhesive film layer coats all exposed portions of the electrode surface and coats all exposed surfaces of the at least one electrode.

Adhesive-coated electronic parts on a connection sheet

An apparatus includes a connection sheet having a separator layer and an adhesive film layer formed on the separator layer such that said adhesive film layer can be peeled from the separator layer. The cohesive strength of the adhesive film layer decreases when the adhesive film layer is heated to a predetermined temperature. Electronic parts each have an electrode surface and at least one electrode on the electrode surface. The electrode surface of each of the electronic parts is affixed to the adhesive film layer such that the adhesive film layer coats all exposed portions of the electrode surface and coats all exposed surfaces of the at least one electrode

Method of mounting a plurality of electronic parts on a circuit board

A method of mounting electronic parts on a circuit board comprises an adhesive layer formation step of forming, on an electrode surface of each electronic part on which electrodes are formed, a film-like thermosetting adhesive layer having an area substantially equal to that of the corresponding electrode surface so as to obtain adhesive-coated electronic parts. The electrodes on which the adhesive layer is formed are arranged so as to face corresponding electrodes of the circuit board, and the electrodes are positioned relative to each other. Heat and pressure are applied to the electrodes of the electronic parts and the electrodes of the circuit board to fix the electrodes to each other after the electrodes are positioned. Almost no adhesive superfluously comes out of the electrode surfaces. Accordingly, when mounting the electronic parts on the circuit board, it is unnecessary to remove superfluous adhesive, unlike conventional process, whereby the efficiency is improved and also the cost can be cut down.

Growing community of inventors

Chikusei, Japan

Naoki Fukushima