Researchers from Columbia University, in collaboration with NewYork-Presbyterian Hospital, Stanford University, and the University of Pennsylvania, have developed an ultra-thin brain implant capable of streaming detailed neural activity to external computers in real time. This advance in brain-computer interface (BCI) technology could transform both clinical neurotechnology and human-machine communication.

What Is the New Brain Chip?

The new neural device, called the Biological Interface System to Cortex (BISC), is a single silicon chip engineered to provide a high-bandwidth wireless connection between the cerebral cortex and external computers. Key specifications include:

• Chip thickness: approximately 50 micrometers (similar to a human hair)
• Volume: less than 1/1,000th that of conventional implants
• 65,536 electrodes, 1,024 recording channels, and 16,384 stimulation channels
• Wireless throughput: up to 100 Mbps

This allows simultaneous high-resolution recording and stimulation across large cortical areas using micro-electrocorticography (μECoG) via a minimally invasive approach.

Why This Matters

The technology overcomes major limitations of traditional BCIs:

1. Size and invasiveness: Avoids bulky electronics and complex surgery
2. Data transmission: High-bandwidth wireless data allows advanced AI-based decoding of neural signals

Clinical and Research Implications

Potential applications include:

• Epilepsy management: Detect and prevent seizures in real time
• Motor and sensory restoration: Support neuroprosthetics for paralysis or limb loss
• Visual and speech restoration: Reconstruct or stimulate sensory experiences
• Neuropsychiatric treatments: Aid therapy for ALS, stroke, and other CNS conditions

Technological and Commercial Development

The chip is fabricated using advanced BCD technology, integrating mixed-signal functionality, power management, and wireless transceivers on a microscopic footprint. A startup, Kampto Neurotech, is moving the innovation toward clinical applications.

Future Prospects

This development lays the groundwork for seamless integration between human brains and AI, enabling advanced assistive systems and potential cognitive enhancement technologies.