Implantable module-based microchip networks

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The project NeuroBus deals with the realization of an implantable network of miniaturized microchips (µASICs) as neuronal interface. Various Gamma ASICs with different functions are designed as self-sufficient modules that can be freely combined in variable combinations. The individual modules are hermetically encapsulated and assembled on polyimide to form application-specific networks. The aim of the project is to study the material science and electronic fundamentals to achieve increased biostability and biocompatibility of the novel implant concept. A significant miniaturization of the ASICs, the volume reduction of the applied hermetic encapsulation and the embedding in a highly flexible polymer substrate lead us to expect a higher biological tolerability. The absence of DC voltage, the adapted adhesion promoters between the different components and the direct encapsulation of the ASICs with a thin metal film are further key aspects of the study in order to maintain an unequalled long-term stability. The conducted research work will find methods to create modular and scalable implants that can be personalized and which form the basis for a large number of other modules and thus applications in biomedical applications.