Matsushita Electric Industrial Co., Ltd.

Yuichi Nishimura

Hirokazu Uemura

Shinji Miura

Hiroyuki Yoshimura

Masayuki Tsuchida

Yoshiyuki Saito

Nobuo Sueda

When a component is placed on a circuit board, a placement position is determined by method of elastic center. Then, it is determined whether the component was placed on the circuit board. After that, connectors are routed between the component and a design candidate component which is already placed. After that, the next component is set, and the above mentioned packaging processing is repeated.

Printed circuit board CAD device which alternates placing components and

According to the printed-circuit board of the preset invention, the circuit modification unit 120 adds a noise reduction component, based on circuit board information inputted to the design information input unit 106. Then, the layout unit 132 sets a layout after the design rule generation unit 133 generates a design rule. The rated value modification unit 124 determines rated values of noise reduction components in accordance with the layout. Thus, design rule generation, noise reduction component addition, and rated value determination are automatically performed to satisfy the electric characteristics of evaluation targets. Consequently, interactive process in designing is reduced and the efficiency of designing can be realized.

System and method for designing a printed-circuit board

Growing community of inventors

Katano, Japan

Yuichi Nishimura