Power in System on Chip Needs a New Energy Storage Solution INDUSTRY TRENDS AND CURRENT SOLUTIONS ARE MISALIGNED INCREASING PROLIFERATION OF ELECTRONIC DEVICES THAT ARE SMALLER, PORTABLE AND/OR CONNECTED Ultra-Low Power Electronics Wireless Smart Devices & Sensors Everywhere Component Integration and Miniaturization Life of Product Batteries Key Trends Driving Billions of New Devices HOWEVER, EXISTING ENERGY STORAGE SOLUTIONS ARE INADEQUATE LARGER PROFILE / BULKY SIZE LOW ENERGY FOR SPACE USED INTEGRATION ISSUES HIGH WEAR-OUT AND FAILURE ISSUES TOXIC CHEMICALS – SAFETY AND DISPOSAL ISSUES PwrSoC 2014 1 Cymbet EnerChip™ Solid State Battery Technology Solid State Cathode Anode Current EnerChips on Silicon Wafer Collector Solid State Electrolyte Charging Protective Coating Current Collector Electrolyte EnerChip RTC Co-packaged Battery + RTC + PMIC Discharging Cathode Substrate Solid State Rechargeable Batteries in various shapes and capacities Produced using semiconductor fab processes on silicon wafers Cathode is LiCO2, solid electrolyte is LiPON, Anode is Lithium-free Simple and quick 4.1V charging with >5000 charge cycles EnerChip battery bare die use standard wirebonds and gold stud bumps EnerChips are JEDEC-standard solder reflow tolerant PwrSoC 2014 2 Embedding Solid State Batteries in System on Chip Bare die batteries for integration into co- Side-by-Side EnerChip and ICs with Wire Bond packaged devices and tiny modules. Various configurations : • Side-by-Side wirebond • Stacking – waterfall or wedding cake Stacking EnerChip and ICs using Wire Bond • Bumped Flip-Chip, Chip over Chip • Mixed attachments in System on Chip EnerChip Bare Die µController, Sensor, RTC Applications • Medical Devices • Wearable Technology • Internet of Things Wireless Sensors • Healthcare and Fitness • Tamper Detection and Security EnerChip and ICs in System On Chip PwrSoC 2014 3 Solid State Bare Die Stacking and Assembly Examples EnerChip Bare Die Solid State Battery Application Specific Integrated Circuit Three Stack Waterfall Wire bond 700 micron height EnerChip Solid State Battery Stack Tiny Internet of Things Sensor Using EnerChip Bare Die Batteries PwrSoC 2014 4 Integrated Battery in Module Concepts – Bluetooth Smart, RFID, NFC EnerChip Powered Active RFID Tag with Bare Die EnerChip Battery and PMIC EnerChip Powered IoT NFC Sensor Tag 18 mm 3 14mm 2 5 6 1 4 EnerChip Battery and PMIC Courtesy: Dialog Semiconductor PwrSoC 2014 5 100% Non-Cytotoxic Solid State Batteries Ideal for Medical SiPs and SoCs Intra Ocular Pressure Sensor For Glaucoma Patients The gamma sterilized Cymbet EnerChip™ bare die batteries were found to be non-cytotoxic (0% cell lysis) using both the Medium Eluate Method Eluation Test and Agar Diffusion Test feasibility screening procedures. The lack of any adverse biological responses in these very sensitive in vitro cell culture assays is indicative (although not a guarantee) of biocompatible test results in the other in vitro and in vivo aspects of biocompatibility as suggested by the ISO 10993-1 and FDA G95-1 guidelines. PwrSoC 2014 Courtesy: Univ. of Michigan 6