Ethanol and volatility sensor and fabrication method

US6862919B2 · kind B2 · utility

Assignee

• Delphi Technologies · US

Inventors

• Yingjie Lin · El Paso, US
• Da Yu Wang · Troy, US
• Robert Farhat · Grosse Pointe Park, US
• Raymond L. Bloink · Swartz Creek, US
• William LaBarge · Bay City, US

Key dates

• Filing date: Jun 17, 2003
• Grant date: Mar 8, 2005
• Expiry date: Oct 24, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N25/14
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In one embodiment, a method for forming the sensor comprises: disposing capacitance electrodes and a heater on green layers; disposing the layers such that the capacitance electrodes are disposed between adjacent green layers and the heater is disposed on a side of a green layer opposite one of the capacitance electrodes; disposing a gap insert in physical contact with the capacitance electrodes, wherein the gap insert has a higher sintering temperature than the green layers; sintering the green layers; and removing the gap insert.