Title :
Analyzes of very high-q quartz crystal aimed to high quality 5 MHz resonators achievement
Author :
Imbaud, J. ; Boy, J.J. ; Romand, J.P. ; Frayret, J. ; Picchedda, D. ; Cibiel, Gilles ; Sthal, F.
Author_Institution :
FEMTO-ST, ENSMM, UFQ, Time & Freq. Dept., UTBM, Besancon, France
Abstract :
This article reports analyzes on a specific quartz crystal block supplied for a specific program on 1/f noise of quartz crystal resonator. This kind of synthetic crystal is usually used to growth new generation of quartz crystal blocks. Description of the blanks realization is presented. Inclusions detection by optical methods are studied. FTIR Spectrometry for mapping alpha values and ICP-MS measurements to qualify amount chemical impurities of the crystal are also given. The results about crystal quality are discussed.
Keywords :
1/f noise; Fourier transform spectra; crystal resonators; impurities; infrared spectra; mass spectroscopy; 1/f noise; FTIR spectrometry; ICP-MS measurement; alpha values mapping; chemical impurity; frequency 5 MHz; optical methods; quartz crystal block; quartz crystal resonator; synthetic crystal;
Conference_Titel :
EFTF-2010 24th European Frequency and Time Forum
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-5970-2
DOI :
10.1109/EFTF.2010.6533637
