Patent ID: 7152478
Filing Date: 2006-12-26
Classification: G01L

Abstract:
1. A sensor having a non-porous outer surface, said sensor comprising: a backing plate that includes apertures extending therethrough; a diaphragm; a sensing element disposed over an inner surface of the diaphragm; at least one electrical lead extending through at least one aperture and coupled to the sensing element on the diaphragm, the electrical lead having a coil head adapted for brazing over the inner surface of the diaphragm with a high temperature braze composition; and a glass layer adapted to be bonded by glassing to the backing plate and the diaphragm, the glass layer having both a high bond strength and a high melt temperature that is at or above 700° C., wherein the glass layer bonds the backing plate to the diaphragm and the coil head is brazed to the sensing element.