Solid-state chips are not only delivering high-quality headphones, they could soon help to prevent smartphones from overheating.

Recent research has focused on the piezoelectric properties of single crystals and solid solutions, particularly those involving silicon dioxide (SiO 2) and germanium dioxide (GeO 2). These ...

Describing the coolers as “solid-state”, the company said ... Hot air exits to the side via an integrated spout.” The membranes are piezoelectric, and in the base is a copper heat spreader, the ...