In order to enhance the accuracy of estimation of a vehicle’s sideslip angle, a sideslip angle estimation apparatus calculates an angle between the direction of centrifugal force acting on the vehicle body during cornering and the lateral direction of the vehicle body based on accelerations exerted on the vehicle body and acting in two different directions. The plurality of high voltage transistors are operatively associated with a page buffer circuit, wherein each high voltage transistor includes; a gate pattern separating a first pattern from a second pattern. Such use of the sensor data may be personalized to different users, e. Accordingly, some of the chair back and some of the chair seat move into respective air gaps so that the shapes of the back and seat change to conform to the movements of the user. As the invention can be extensively applied to a myriad of miniaturizing industries, it can solve all the drawbacks of the prior art manufacturing process and miniaturization.