MEMS chips help extend battery life of wearables
Microelectromechanical system (MEMS) sensors that are used in wearables have two critical features: ultra-low power and ultra-small size.
MEMS manufacturer mCube Inc. discovered this in its research and has set out to meet that not-so-tiny goal. Since mCube already had the industry’s smallest MEMS+CMOS die at 1mm x 1mm—allowing room for larger batteries in wearables—they decided to concentrate on technologies that would help extend the battery life of fitness, health monitoring and activity tracking wearables from hours or days, to weeks or months, according to mCube CEO Ben Lee.
“In a nutshell we already make the world’s smallest accelerometer—a one-by-one die in a two-by-two package,” Lee told EE Times in advance of their wearables announcement. “And we wanted to be the first to design an accelerometer specifically for the wearables market, so we redesigned our ASIC to fulfil their needs.”