Abstract: A semiconductor device including a conductive substrate, an insulator layer, a silicon layer doped with impurities and forming a first transistor and a second transistor, an isolation volume between said first transistor and said second transistor, and a conductive stud extending from the doped silicon layer to the substrate.

Abstract: An ambidextrous computer input device having a control circuit and at least one sensor to detect the presence of a human digit, such as a thumb or a finger. The sensor is unobtrusively positioned on the input device, such as a mouse or a trackball or a keyboard point device. Upon detection or lack of detection of the thumb or finger, the control circuit automatically configures the buttons on the device to activate primary or secondary software functions either for a left-handed person or a right-handed person.

Abstract: A method and apparatus for simply detecting the magnetic head position over a wide range. A magnetic disk has recorded thereon a plurality of data tracks 54 formed along the radial direction (arrow B), and burst pattern rows A, B, C, and D. Signal recording areas 50a and 50b of pattern rows A and B are arranged in a staggered manner, their end sides along the radial direction corresponding to respective widthwise central portions of tracks 54. Signal recording areas 50c and 50d of pattern rows C and D are also arranged in a staggered manner, their end sides along the radial direction corresponding to respective boundaries of tracks 54. Based on signals A, B, C, and D obtained by moving the magnetic head and reading each pattern row, data SA representing signal A/(A+B) and data SC representing signal C/(C+D) are generated.