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Conductive Composition

IP.com Disclosure Number: IPCOM000095591D
Original Publication Date: 1964-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Block, ML: AUTHOR [+3]

Abstract

This composition can be employed in resistor and thermistor electric devices. The composition is suitable for screening and depositing techniques. The deposited composition has a P-type semiconductor This composition can be employed in resistor and thermistor electric devices. The composition is suitable for screening and depositing techniques. The deposited composition has a P-type semiconductor characteristic.

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Conductive Composition

This composition can be employed in resistor and thermistor electric devices. The composition is suitable for screening and depositing techniques. The deposited composition has a P-type semiconductor This composition can be employed in resistor and thermistor electric devices. The composition is suitable for screening and depositing techniques. The deposited composition has a P- type semiconductor characteristic.

The composition has a formula MPd(3)O(4) in which M is selected from the group consisting of beryllium, magnesium, calcium, strontium and barium. Pd(3)O(4) is an oxide of palladium. The composition is prepared by adding 75% by weight of calcium carbonate or an equivalent composition of beryllium, magnesium, strontium and barium to 25% by weight of palladium or palladium oxide. After the calcium or like element and the palladium material are thoroughly mixed, they are fired at approximately 900 degrees C. The combination is stirred at approximately 15 minute intervals until the palladium or palladium oxide unites with the calcium.

The combination of the palladium and calcium is determined by X-ray diffraction analysis at the end of the 15 minute interval. Typically, the time interval is of the order of one hour for 10 grams of palladium with an excess of the other material. The resultant composition is washed with saturated ammonium chloride solution to dissolve out the excess calcium oxide. In the case of the beryllium, magnesium,...