Burgeoning with potential, crystal devices can be found in everything from mobile telephones to communication satellites. Daishinku has an integrated production system that covers everything from growing artificial crystals through to product manufacture, and is highly acclaimed around the world for its unique technological capabilities and quality control management. At CEATEC JAPAN 2014, the company is exhibiting a diversity of its independently developed products including new types of crystal devices designed to contribute to the further development of our modern electronic society.

With conventional construction, crystal blanks are set into ceramic packaging using conductive resinous adhesive (adhesive hereinafter). This means that if a product is miniaturized and the amount of adhesive used becomes smaller and smaller, it becomes easier for conductivity problems to occur.
In contrast, Daishinku’s new structure does not use adhesive, meaning that problems resulting from adhesive are not possible. Moreover, these new products do not use metallic or ceramic packaging, but consist of a package that contains both the crystal and the piezoelectric oscillator and are created using new hermetic sealing technology. Daishinku’s vacuum-based manufacturing process delivers products with almost no defects, since products do not come into contact with the atmosphere from creation of electrodes through to hermetically sealing. The company is exhibiting completely new types of the world’s smallest and thinnest crystal oscillators and piezoelectric elements.

The company’s booth features a 1.6 x 1.0 mm, 0.35 mm thick (max) SMD tuning fork-type ultra-compact, ultra-thin, lightweight crystal oscillator component. Being the thinnest in the world, this device is designed for a wide range of applications including mobile communications equipment such as mobile telephones and other commercially available devices. Since this device can be included in a 0.76 mm-thick smartcard (IC card), it will also be useful for improving security with synchronizing-type 1 password technology.

At 1.6 x 1.2 mm, 0.65 mm thick (max), this is the world’s smallest class of crystal oscillators with built-in NTC thermistors. Conventionally, thermistors have been adopted to correct for frequency drift that results from changes in temperature, however by building the thermistor into the device itself, even more stable frequencies can be generated.