| 摘要 |
A differential pressure detection type pressure sensor includes: a casing having a concavity; a pressure detection element disposed on a bottom of the concavity; a through hole; a first protection member in the concavity; and a second protection member in the through hole. The pressure detection element has one side facing the bottom of the concavity and the other side facing an opening of the concavity. The through hole includes one opening on the bottom of the concavity and the other opening on a part of the casing. The height of the first protection member facing the opening of the concavity and the height of the second protection member in the other opening of the through hole are on a same plane.
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