Accession Number:

ADP002469

Title:

Standard Characterization Methods for the Determination of the Quality of Hydrothermally Grown Quartz,

Descriptive Note:

Corporate Author:

MOTOROLA INC CARLISLE PA QUARTZ OPERATIONS

Personal Author(s):

• Balascio,J. F.
• Lias,N. C.

Report Date:

1983-01-01

Pagination or Media Count:

7.0

Abstract:

Standard characterization techniques have been developed for the determination of the Q and the etch channel density of hydrothermally grown single crystal alpha quartz. Y-cut slices, for infrared Q evaluation, and AT-cut slices, for etch channel determinations, were respectively lapped to a three micron finish at a final thickness of 6.35mm or - 0.03mm. In order to properly characterize the Q of the as-grown quartz, the sample should be linearly translated through the beam so that a complete profile along the Z axis is obtained. To eliminate differences due to averaging techniques, the maximum alpha value calculated from the scan should be employed to safely characterize the Q of the quartz. Utilizing standard samples, the repeatibility of any alpha value was found to be less than or equal to or - 0.004.

Descriptors:

• *QUARTZ
• *CRYSTAL GROWTH
• Q FACTOR
• ETCHED CRYSTALS
• CHANNELS
• FABRICATION
• STANDARDIZATION
• ACCURACY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE