Accession Number : AD0479016

Title :   RESISTORS FOR MICROPOWER CIRCUITS.

Descriptive Note : Quarterly rept. no. 2, 1 Oct-31 Dec 65,

Corporate Author : SPEER CARBON CO NIAGARA FALLS NY

Personal Author(s) : Parks, Charles F.

Report Date : MAR 1966

Pagination or Media Count : 21

Abstract : Micropower resistors ranging in resistance value from less than 1 megohm to over 100 megohms have been prepared. The effects of a limited number of process variables, including the use of additive at various compositional levels and firing temperatures, raw materials from different sources, different firing kilns, and the reproducibility of resistance and temperature coefficient of resistance values have been investigated. Basic equipment for helixing was completed and placed in operation. The process of helixing to high resistance values has been examined in some detail, and the effects of obtaining a given resistance value by high film resistance and low magnification factor compared with the employment of relatively low film resistance and high magnification factor. Parts for a more complex helixing unit were received and construction begun. A hydraulic press for substrate fabrication has been essentially completed and operation scheduled for an early date. (Author)

Descriptors :   *MICROELECTRONICS), (*RESISTORS, JIGS, MANUFACTURING, HELIXES, FILMS, THALLIUM COMPOUNDS, OXIDES, TEMPERATURE, ELECTRICAL RESISTANCE, ROLLING MILLS, ADDITIVES.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE