CMOS based sensor array for cell counting. (a) Schematic of the microelectrode arrays for the cell detection. (b) Illustration of the sensor layout and the addressing scheme employed in the CMOS sensor chip. (c) CMOS chip packaged with a switching PCB. (d) Microphotograph of more than nine thousand electrodes in a single chip. Copyright 2012. Reprinted from [57] with permission from Elsevier.
