[10a-C309-1~13] 12.7 Biomedical Engineering and Biochips

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[10a-C309-2] Angular Resolution Enhancement of Angle-Selective Pixels via Dual-Layer Metal Shielding

〇(M2)ZIYU TANG¹, Ryoma Okada¹, Hironari Takehara¹, Jun Ohta¹, Kiyotaka Sasagawa¹ (1.Nara Institute of Science and Technology)

Keywords:

CMOS image sensor,lensless imaging,angle selective imaging

We developed an optimized angle-selective pixel (ASP) architecture to enhance the spatial resolution of implantable lensless CMOS image sensors. To suppress high-angle stray light and sharpen directional selectivity, vertically aligned right-trapezoidal metal shielding patterns were implemented within the multi-layer metal interconnects. In this study, the angular response performance of the fabricated device was systematically evaluated from a representative quadrant channel. Since the omnidirectional angular selectivity enhancement over the conventional configuration was successfully demonstrated, we will report on these comprehensive characterization results.