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36 DESIGN007 MAGAZINE I FEBRUARY 2025 UHDI FUNDAMENTALS: UHDI Advances Neurotechnology Article by Anaya Vardya AMERICAN STANDARD CIRCUITS Ultra high density interconnect (UHDI) technology is revolutionizing the field of neu- rotechnology and brain-computer interfaces (BCIs) by enabling unprecedented levels of miniaturization, complexity, and performance in neural devices. Here's an in-depth look at how UHDI contributes to these domains: Dense Electrode Arrays UHDI technology is a game-changer for dense electrode arrays used in neurotechnology and neuroscience research. ese arrays are critical for applications such as neural recording, stimu- lation, and mapping, where precision and min- iaturization are paramount. • Higher spatial resolution: UHDI facili- tates the design of densely packed inter- connects for neural electrode arrays, enabling more precise detection and stim- ulation of neural signals. • Improved signal quality: e reduced impedance and enhanced connectivity ensure cleaner signal acquisition, critical for high-fidelity neural recording. • Applications: › Brain signal mapping for neuroscience research › Prosthetic control through detailed neural activity monitoring