Stacks of transistors built from nanomembranes that can be rolled onto a substrate have been used to fabricate 3D circuits.

Stacks of transistors built from nanomembranes that can be rolled onto a substrate have been used to fabricate 3D circuits.

Uniformly doped, ultrathin single-crystalline silicon nanomembranes can be vertically stacked at low temperature using a roll-transfer-printing process that is scalable to wafer…