Resistor type physical quantity sensor having migration inhibiting pattern
AssigneeNgk Spark Plug Co., Ltd.
InventorsTakao Kojima, Yoshiyuki Ohtake, Satoshi Sugaya
Life of this patent
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Abstract
A physical quantity sensor e.g., temperature sensor having a resistor pattern and a ceramic support carrying the resistor pattern. The resistor pattern has an ionizing component retention conductor pattern which is branched at its negative terminal side. The resistor pattern with branched pattern are stacked between the ceramic support layers. Migration in the resistor pattern is suppressed to prevent the resistance of the resistor pattern from being increased for assuring accurate measurement of temperature. The sensor is operated without cooling to 0.degree. C.
Claims13
A physical quantity sensor comprising a resistor pattern having its resistance changed with temperature and a ceramic support for supporting said resistor pattern, said resistor pattern having a branched conductor pattern for retaining ionizing components which is branched at a negative terminal side thereof.
Dependencies are inferred from the claim text.