公开(公告)号：US20180224384A1

公开(公告)日：2018-08-09

申请号：US15749319

申请日：2016-01-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Tod WOODFORD ,  Hilary ELY ,  Sadiq BENGALI

IPC: G01N27/02

CPC classification number: G01N27/02

Abstract: An electrode system and a method of using an electrode system to make an impedance measurement. The electrode system comprises a substrate that supports a first and second electrodes. The first electrode is located inside a cutout of the second electrode. The first and second electrodes are separated by an insulating layer.

公开(公告)号：US20190285564A1

公开(公告)日：2019-09-19

申请号：US16319026

申请日：2016-10-05

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： George H. CORRIGAN, III ,  Chantelle DOMINGUE ,  Sadiq BENGALI

IPC: G01N27/12

Abstract: The present disclosure is drawn to an insulated sensor including a silicon substrate with active circuitry on a surface thereof, an electrode disposed on the silicon substrate, a passivation layer having a thickness from greater than 500 Angstroms to 3,000 Angstroms disposed on the active circuitry, and an electrode insulating layer having a thickness from 10 Angstroms to 500 Angstroms disposed on the electrode.