Novel Packaging Structure and Processes for Micro-TFB (Thin Film Battery) to Enable Miniaturized Healthcare Internet-of-Things (IoT) Devices
2019
In this work, a novel packaging structure has been demonstrated for micro-TFB cells. Various semiconductor fabrication and assembly processes have been applied to thin substrate via formation and sealing, micro-TFB singulation and handling, as well as metallic sealing for hermetic battery packaging. Micro-TFB cells in the dimensions of 2.5mm x 2.5mm x 0.1mm have been fabricated and tested. A normalized capacity of ~ 190 µAh/cm^2 has been demonstrated.
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