Patent ID: 9222813
Filing Date: 2015-12-29
Classification: G01F,H01L

Abstract:
1. A flow sensor comprising: (a) a chip mounting unit mounting a semiconductor chip; and (b) the semiconductor chip mounted on the chip mounting unit, the semiconductor chip having a flow sensing unit formed in a thin plate part; wherein the semiconductor chip is a flow sensor in which at least a part of the chip mounting unit is sealed with a sealing body containing resin in a state that the flow sensing unit is exposed, and wherein, in an optional cross-section parallel to a travelling direction of a gas that flows above the exposed flow sensing unit, an upper surface of the resin is lower than an upper surface of the semiconductor chip in a first region in which the sealing body is in contact with the semiconductor chip, and, the upper surface of the resin is higher than the upper surface of the semiconductor chip in at least a part of a second region that is more apart from the semiconductor chip than the first region.