In this paper, we propose new results in the case of SH-APM delay-lines on quartz substrate. These modes propagate at discrete frequencies that are defined in the case of free surfaces. We describe in detail the SH-APM, its propagation characteristics and its responses to temperature variations in order to design biochemical sensors; theoretical studies of temperature dependence are examined and experimental results with various frequency modes for different plate geometries are presented. They show the frequency-temperature sensitivities.