Massively parallel microwire arrays integrated with CMOS chips for neural recording
Abstract
Multi-channel electrical recordings of neural activity in the brain is an increasingly powerful method revealing new aspects of neural communication, computation, and prosthetics. However, while planar silicon-based CMOS devices in conventional electronics scale rapidly, neural interface devices have not kept pace. Here, we present a new strategy to interface silicon-based chips with three-dimensional microwire arrays, providing the link between rapidly-developing electronics and high density neural interfaces. The system consists of a bundle of microwires mated to large-scale microelectrode arrays, such as camera chips. This system has excellent recording performance, demonstrated via single unit and local-field potential recordings in isolated retina and in the motor cortex or striatum of awake moving mice. The modular design enables a variety of microwire types and sizes to be integrated with different types of pixel arrays, connecting the rapid progress of commercial multiplexing, digitisation and data acquisition hardware together with a three-dimensional neural interface. Show more
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https://doi.org/10.3929/ethz-b-000409259Publication status
publishedExternal links
Journal / series
Science AdvancesVolume
Pages / Article No.
Publisher
AAASOrganisational unit
03684 - Hierlemann, Andreas / Hierlemann, Andreas
Funding
694829 - Microtechnology and integrated microsystems to investigate neuronal networks across scales (EC)
167989 - Position Dependence of Retinal Computation (SNF)
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