Imec has developed a demonstrator of a neural probe with unprecedented electrode density within the framework Neuroseeker, a large-scale EU-project. Designed and fabricated in silicon chip technology, the probe is suitable for breakthrough bio-interfaces and implants that will shape the future of neuroscience. With hundreds of electrodes capable of contacting and reading out single neurons, this probe incorporates innovations that point the way to a better understanding of the brain, and ultimately will lead to diagnostic and prosthetic tools to tackle human brain diseases.