Patent ID: 9072464
Filing Date: 2015-07-07
Classification: A61B,A61M,B05B,G01P,G08B,Y10T

Abstract:
1. A thermal flow sensor device for sensing a flow in a fluid channel based on temperature measurements, the device comprising: an electrically driven thermal element on a front side of the thermal flow sensor device arranged to face the channel, a bond pad coupled electrically through physical contact with a channel facing side of the electrically driven thermal element and configured to facilitate electrical contact with a printed circuit board of the thermal flow sensor device via a surface of the bond pad that faces away from the channel and is accessible for electrical contact with the printed circuit board of the thermal flow sensor device; and a substrate, the substrate being patterned to provide apertures to expose the bond pad and increase sensitivity of the electrically driven thermal element such that a location of the physical contact between the bond pad and the electrically driven thermal element corresponds to a first aperture in the substrate and electrical contact between the bond pad and the printed circuit board is made via a second aperture in the substrate.