[Theme 2]
Flexible ultra-thin inductors
Toshiba Materials Co., Ltd. offers amorphous magnetic parts that excel in high-frequency soft magnetic properties.
Among others, output control elements (saturable cores) for switching power supplies, noise suppression devices (spike killers®, amobeads®) are world first commercialized and positioned as our most important devices.
Taking advantage of these technology accumulations, we are developing other magnetic parts that are applicable to higher frequency switching power supply (DC-DC converters).
As an example of the new development, we would like to introduce our R&D result of flexible ultra-thin inductors.
Power supply units are wanted to be made smaller and lighter as ever, they are additionally wanted to be made thinner in recent years to become applicable to thinner cellular phones.
Accordingly, magnetic parts are also wanted to be made thinner as well as to have low loss characteristic responding to higher frequency.
We are developing flexible ultra-thin inductors that can satisfy above requirements.
 Features
- Thinner structure: 0.3mm thick (adjustable to 0.1 to 0.4 mm thick)
They can be incorporated into power supply packages after mounted on the silicone chips in step-up or step-down DC-DC converter ICs for cellular phones.
- High Q-value: They have high Q-values at high frequency.
(Q>25 at 10MHz; sized 5mm×5mm×0.3mm)
- Excellent DC superimposed inductance characteristics: They have stable characteristics against large current over 1A.
- Structural flexibility: They are made of exclusive materials to have flexibility.
Main application fields
- Power supplies for small and thin handy apparatus such as cellular phones, PHS, PDA or digital cameras.
Main usage
- Built-in choke coils in IC packages for system power supplies.
- Output choke coils in ICs for DC-DC converters.
- Output choke coils for VRMs(Voltage Regulator Modules)
Shapes
Inductor shapes are not restricted to rectangular shapes. They can be made to be ovals, discs or trapezoids as they are required for mounting.
They can also be made to be mountable to irregular surfaces such as curved and convexo-concaved surfaces. They can even be made to be mountable to crevices.
Such excellent properties and shapes were materialized by the combination of our own made magnetic materials, best selected binders and their optimal dispersion.
We will continue our development work to obtain high performance flexible ultra-thin inductors and we are going to increase their lineup so that they can be applied to every field where they are required.
Our flexible ultra-thin inductors were exhibited at the Power Supply Japan 2006, Makuhari Messe, April 19th to 21st.
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