Alps Electric Co., Ltd.

Alps Electric, Ltd.

Akihiro Kusaka

A printed circuit board having an insulating board and a plurality of wiring patterns formed over the insulating board by screen printing and provided with first conductive pattern bent parts and wiring parts linked to the first conductive pattern bent parts. The gaps between adjoining ones of the first conductive pattern bent parts are formed wider than those between those of the wiring parts positioned close to and on both sides of the first conductive pattern bent parts.

Printed circuit board with wiring pattern formed thereon by screen printing and process for manufacturing the same

The printed circuit board according to the invention is highly reliable because a gap width between adjoining first conductive pattern bent parts is formed greater than a gap width in those of wiring parts positioned close to and on both sides of the first conductive pattern bent parts and accordingly, even if any running part arises in the conductive pattern bent parts, short-circuiting is unlikely to occur between wiring patterns, thus making the printed circuit board reliable.

Method of manufacturing a printed circuit board

A reliable printed circuit board is provided, which has breaks reduced at a bent portion of the trace patterns. The printed circuit board is provided with the trace patterns with the bent portion that is wider in pattern width than the trace portions located near both ends of the bent portion. This allows a more area to remain on the bent portion than on the prior-art bent portion and thereby provides a highly reliable trace pattern without causing a break thereon even when a patchy portion or the like is produced by printing at the bent portion.

Growing community of inventors

Miyagi-ken, Japan

Akihiro Kusaka