Natural quartz crystals have irregular shapes and therefore are difficult to handle. Increasingly higher quality will be required in the future of synthetic quartz crystals needed in fields including those from satellite communication and mobile communication devices to automobiles, televisions, personal computers, and even DVD equipment and other information appliances. Quartz crystal quality standards have been established by the likes of the International Electrotechnical Commission (IEC 60758) and the Japanese Industrial Standards Committee (JIS C 6704). Murata Manufacturing's synthetic quartz crystals meet these standards and boast a high grade.
Murata grows synthetic quartz crystals to provide high-quality products to our customers.
We are able to provide high-grade value by growing high-purity and minimal defect synthetic quartz crystals. Moreover, growing large synthetic quartz crystals allows us to provide the value of larger-diameter optical quartz crystals.
In other words, the in-house production of high-quality synthetic quartz crystals is essential for high-grade and high-precision quartz crystal products.
We can grow these synthetic quartz crystals thanks to the accumulation of Murata's experience and know-how over many years.
When the wavelength enters the deep ultraviolet range (200 nm or less), absorption of impurities becomes a problem. These numbers are a comparison of the metal impurity concentration in a regular synthetic quartz crystal and our Pristal. The absorption of aluminum in particular produces a big difference in the transmission performance.
Murata's Pristal allows us to mass produce high-purity synthetic quartz crystals with reduced concentrations of the major metals including aluminum.
The quantity of impurities determines the difference in transmission performance in the deep ultraviolet range.
Murata manufactures waveplates through high-precision cutting of wafers and measurement of the retardation without relying on thickness control. These are capabilities we have cultivated in manufacturing for crystal units. This allows us to mass-produce products with narrow phase tolerance.
Murata has achieved high-precision and highly stable product characteristics by being involved in the process from growing synthetic quartz crystals. Moreover, we have our own packages, production lines, and production/sales systems to also be able to deal with deadlines and costs in response to fluctuations in demand. This allows us to contribute by providing new value to solve the issues of our customers.