The HQ0A11 has the smallest and thinnest package size for an InAs-based reverb element from AKM at 0.8 x 0.4 x 0.23 mm. Compared to the previous model HQ0811, the volume has been reduced by 85% and is intended to contribute to improved performance in smartphone camera modules, small robots, and other applications.
In addition, it has an approximately 16% better signal-to-noise ratio (S/N) in comparison, which directly correlates with the accuracy of position sensing.
Hall elements are used to detect magnetic fields (magnetic flux density) and are often used for position detection, which is required for image stabilization and autofocus in smartphone cameras. The demand for improved functionality and higher resolution in cameras requires a higher number of components in the same (or smaller) form factor, creating a growing need for ultra-compact products that allow high-density components to be assembled in limited space.
According to AKM, the HQ0A11 achieves the highest S/N performance among its position detection products by leveraging the properties of InAs. Its position detection accuracy is more than 3.5 times higher than that of the HG0C11, a GaAs (gallium arsenide) reverb element that was a major product for camera modules. Consequently, the HQ0A11 can significantly reduce the lens shake effect that often occurs with smartphone cameras, especially telephoto lenses.
Since the Hall element does not contain any magnetic materials, there is a reduced risk of failures and malfunctions due to adsorption or changes in magnetic field strength. This enables stable operation even in environments such as near engines.
