Denki Kagaku Kogyo Kabushiki Kaisha

Tetsuo Fujimura

Takeshi Miyakawa

Mikio Shimizu

Katsuhisa Ogita

Masanori Higano

Kazuhiro Kosugi

Masanori Ishii

Minoru Oda

Takayuki Iwasaki

Akira Sasaki

Takashi Tomizawa

Satoshi Yokoyama

A cover film comprising a substrate layer, an intermediate layer comprising a resin composition containing 50% by mass or more of a metallocene linear low-density polyethylene resin having a density of 0.900 to 0.940&#xd7;10kg/m, and a sealant layer comprising an ethylene-type copolymerized resin containing 50 to 85% by mass of an olefin component.

Cover film

A carrier tape body having an embossed tape continuously having pockets which contain an electronic component sealed with a cover tape, where the cover tape has a peeling static electrification amount of from &#x2212;9 to +9 nC when the cover tape has a surface resistivity of at least 10&#x3a9;, and where the cover tape has a peeling static electrification amount of from &#x2212;3 to +3 nC when the cover tape has a surface resistivity of less than 10&#x3a9;.

Electronic component container

A container for an electronic component made of a resin, wherein when the container and an electronic component contained in the container are rubbed 20,000 times, a static electrification voltage of at most 2,000V by the absolute value on the surface of the electronic component is generated.

Container for an electronic component

In order to prevent static electricity impairment of an electronic component, a layer at the surface of a container to be in contact with an electronic component is one having a relatively high surface resistivity, a layer having a higher electrical conductivity than that is laminated below it, and the surface resistivity of the layer at the surface is higher than that of the layer below it. It is considered that in an electronic component packaging container having such a constitution, static electricity electrified on an electronic component is gradually discharged from the electronic component to the surface of the electronic component packaging container without sudden discharge, thus preventing the static electricity impairment. The surface layer preferably comprises a material close to the electronic component in the series of frictional electrification.

Sheet and electronic component packaging container

Growing community of inventors

Gunma, Japan

Tetsuo Fujimura