Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Kenji Nozoe

Hideaki Tokunaga

Takeshi Iseki

Takashi Morino

Kouichi Yoshioka

An overvoltage protector includes a first discharging electrode, a second discharging electrode, and an overvoltage protection part provided between the first and second discharging electrodes. The overvoltage protecting part has an insulating property under a normal operation condition, and has a conductive property if an overvoltage is applied between the first and second discharging electrodes. The overvoltage protecting part is made of a mixture of resin having an insulation property, an inorganic compound having an insulating property, and metallic boride compound powder. The metallic boride compound powder has a high melting point therefore it is hardly melted. Under high temperatures causing the powder to melt, the powder is oxidized and loses conductivity, thus providing a high reliability.

Overvoltage protection component, and overvoltage protection material for overvoltage protection component

A conductive layer mainly made of gold is formed on an upper surface of an insulating substrate. Plural electrodes facing each other via a gap is formed by forming the gap in the conductive layer. An overvoltage protective layer covering the gap and a portion of each of the plurality of electrodes is formed. This method can provide the gap with a narrow width precisely, and thereby, provide an electrostatic (ESD) protector with a low peak voltage, stable characteristics of suppressing electrostatic discharge, and a high resistance to sulfidation.

Anti-static part and its manufacturing method

The static-electricity control part of the present invention contains multiple pairs of backside electrodes () provided on both end portions () of a long-edge-side at the backside of insulating substrate (); multiple pairs of top electrodes () provided on both end portions () of a long-edge-side at the top face of insulating substrate (); top ground electrode () provided on the top face of insulating substrate () from its short-edge-side one end portion () to other end portion (); overvoltage protection material layer () for filling gap () formed between any one of the multiple pair pairs of top electrodes () and top ground electrode (); and backside wiring () provided on the backside of insulating substrate () so as to connect between the multiple pairs of backside electrodes ().

Static electricity control part and process for manufacturing the same

A static electricity countermeasure component comprising; a ceramic substrate; at least two extractor electrodes opposingly disposed and mutually separated on the ceramic substrate; an over-voltage protective material layer disposed to cover a portion of each extractor electrode and a gap between the extractor electrodes, containing a metal powder and a silicone-based resin; an intermediate layer disposed over the over-voltage protective material layer, containing an insulating powder and a silicone-based resin; and a protective resin layer disposed over the intermediate layer.

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Fukui, Japan

Kenji Nozoe