IEC TS 61994-4-4:2018 RLV Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection - Glossary - Part 4-4: Piezoelectric materials - Single crystal wafers for s
2010IEC TS 61994-4-4:2010 Piezoelectric and dielectric devices for frequency control and selection - Glossary - Part 4-4: Materials - Materials for surface acoustic wave (SAW) devices
2005IEC TS 61994-4-4:2005 Piezoelectric and dielectric devices for frequency control and selection - Glossary - Part 4-4: Materials - Materials for Surface Acoustic Wave (SAW) devices