Patent ID: 9697957
Date: 2017-07-04
CPC Classifications: H01G,H01L,Y02E

Claim:
1. An electrochemical capacitor, comprising; a silicon-on-insulator layer, a partial trench through the silicon layer of the silicon-on-insulator layer, a portion of the silicon layer between the partial trench and the insulating layer of the silicon-on-insulator layer thus defining a bottom surface of the partial trench, a trench extension extending from the bottom surface of the partial trench thus exposing the insulating layer, wherein the partial trench and the trench extension separates a first rigid piece of the silicon layer from a second rigid piece of the silicon layer, a first electrode comprising the first rigid piece of the silicon layer having a first porous portion, a second electrode comprising the second rigid piece of the silicon layer having a second porous portion, an electrolyte in contact with the first porous portion and the second porous portion, and a cover.