Accession Number : AD0786559

Title :   Precision Single Sideband Crystal Units.

Descriptive Note : Final rept. 1 May 73-15 Jul 74,

Corporate Author : GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION

Personal Author(s) : Hart,Raymond K.

Report Date : AUG 1974

Pagination or Media Count : 60

Abstract : The report is concerned with the systematic investigation of various cleaning and processing techniques which are used to assemble high precision single sideband (SSB) quartz resonators. The final requirement is to be able to produce crystal units which will meet a strict aging requirement of 2 x 10 to the minus 10th power/week, when measured at the upper turning point of the crystal unit after a stabilization period of 4 weeks. The specific aspects of resonator fabrication that was investigated during the study are several wet-cleaning processes for preparing quartz surfaces, the sputter-ion cleaning of quartz and the composition profiles and impurities associated with both the quartz surface and the copper electrodes. (Modified author abstract)

Descriptors :   *Quartz resonators, Crystals, Sidebands, Cleaning, Processing, Manufacturing, Fabrication, Aging(Materials), Ion beams, Reliability(Electronics)

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE