| 主权项 |
1. A pressure detection device comprising:
a fluid inflow member having a flow passageway into which a fluid can be flown; a semiconductor type pressure sensor which is provided on a top face of the fluid inflow member, and detects the pressure of the fluid having flown into the flow passageway; a first unit member having:
a first resin section which is provided on the top face of the fluid inflow member, and surrounds the semiconductor type pressure sensor; anda first lead terminal which is retained by the first resin section, one end part of which is electrically connected to the semiconductor type pressure sensor; a lid member which is coupled to the first resin section so as to cover the semiconductor type pressure sensor from an upper side, and forms a closed space in which the semiconductor type pressure sensor is internally positioned; a second unit member having:
a second resin section which covers the lid member from an upper side; anda second lead terminal which is retained by the second resin section, and is electrically connected to an other end part of the first lead terminal; and a resin cover member which couples the fluid inflow member and the first unit member and the lid member and the second unit member, and covers the first unit member, the lid member, and the second unit member by resin molding, while a part of the second lead terminal of the second unit member is exposed to an outside, wherein the semiconductor type pressure sensor and the first lead terminal that is retained by the first resin section are connected to each other by a wire exerted by wire bonding, the first lead terminal and the second lead terminal are bonded with each other by welding, and a bonding portion thereof is covered at a time of molding the resin cover member. |
