Product and the usage
Hitachi Cable's products are widely used in familiar electronics appliances such as PCs, mobile phones, liquid crystal TVs, and CD/DVD players. These products contribute to improving the performance and reliability of these appliances.
Liquid-crystal driving IC
COF (Chip On Film)
COF represents an application of TAB tapes. This is used as the substrate material for the liquid-crystal driving IC, which is indispensable for liquid crystal panels for PCs and TVs. This application contributes to improving the image quality of liquid-display panels.
Semiconductor memory (DRAM)
TAB (Tape Automated Bonding) tapes
TAB tapes are used as package materials for semiconductors. Hitachi Cable's µBGA* package has been rated highly for its superior high-density packaging capability, high-speed transmission characteristics, and high reliability, thanks in part to the unique cushioning material this package incorporates. This product is used mostly in high-end memory units.
Power supply unit (containing power transistor)
Dual-gauge copper strips
Hitachi Cable's dual-gauge copper strips combine thin and thick boards with unique processing techniques. These products are widely incorporated in power transistors for the power supply units of PCs and home electronic appliances, as well as for electric components in cars. The thin part of the board is for the lead of the transistor and the thick part of the board is for the heat sink.
Laser diode
LED (Indicator lamp)
Transmitting and receiving device
Compound semiconductors
Gallium arsenide compound semiconductor for superior high-frequency characteristics and low power consumption
For optical devices, this product is widely used as the substrate for pickup laser diodes for CD/DVD players, indicator lamps for electronic devices, and LEDs for electronic signboards. Gallium nitride substrates hold potential demand for use in the blue-violet lasers used in next-generation DVD systems.
For electronic devices, this product is widely adopted in transmitting and receiving devices such as mobile phones and wireless LAN equipment, in addition to use in switching devices.
Folding part of mobile phone
Micro coaxial cables
Thin coaxial cables with superior flexibility, compactness, and high-speed transmission capability are widely incorporated in the folding section of mobile phones and PCs and as wiring materials in digital home electronic appliances, thanks to decreasing size and advancing performance.
Flexible printed-circuit board
Copper foils
Rolled copper foils, with their thin structure and superior flexibility, are used as conductors for the flexible printed-circuit boards of mobile phones. These foils contribute to making devices thinner and lighter. Hitachi Cable has established mass-production techniques for extremely thin rolled copper foils as thin as 6 µm.
The next issue will introduce the target "automobile" area.
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