These synthetic quartz crystals are manufactured under thorough quality control, with minimal internal defects and foreign matter density. They can be used in a wide range of applications, from quartz crystal units for mass production to quartz crystal units for safety control devices.
Synthetic quartz crystals for tuning fork quartz crystal units are made from seed crystals controlled by etch channel density. Wafers produced from these synthetic quartz crystals have low etch channel density and can be used safely for photolithography processing. The etch channel density satisfies the Grade 1 quality standard specified in the "JIS C 6704" synthetic quartz crystal quality standard.
The foreign material density and the α3585 value respectively satisfy the Grade II and Grade C standards of the "JIS C 6704" synthetic quartz crystal quality standard.

As-Grown is a synthetic quartz crystal grown naturally with no processing.
The dimensions can be freely selected according to the intended use in order to obtain high yields for wafer cutting.

Lumbered synthetic quartz crystal is a synthetic quartz crystal with X and Z planes machined to specified dimensions and angles.
The surfaces of lumbered synthetic quartz crystal are machined with high precision, enabling accurate wafer cutting.
The crystal orientation (Z-plane angle) for tuning fork crystal units can be selected from 1° to 3.5°.