Neurochips

NPbook       Neuroprocessor book

MEA neurochip for in-vitro brain research

A working Brain-on-a-Chip and recording (2005):

nueronsonchip 
neuronsonchip-recording
chip-with-cone

Front-end interface for in-vivo brain electrodes

NP3, a working head-stage chip for brain-machine interface (2004):

NP3-layout
Head-Stage