University of Bologna

Dipartimento di Elettronica, Informatica e Sistemistica

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A CMOS-only Micro Touch Pointer

N. Manaresi and R. Rambaldi and M. Tartagni and Z. Kovacs and R. Guerrieri


A direct-contact finger mouse realized in $0.7\mu m$ digital CMOS is presented. Stroking and tapping the chip surface with the finger allows to move a cursor and click as with a standard mouse. Properly mixing analog collective computation and digital processing, a power consumption of about $900\mu W$ is achieved. The sensor area is $3.8\times 3.8mm^2$, and overall chip size is $7.7mm \times 6.7mm^2$.

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