Pressure sensor and method for manufacturing the same

A method for manufacturing a pressure sensor comprising:

• preparing a stem which has a cylindrical shape with a bottom having a hollow portion with an opening on one end of the stem, the bottom as a diaphragm being deformable by a pressure introduced into the hollow portion;
• mounting a sensor chip, which outputs a sensor signal according to a deformation of the diaphragm, on a side of the diaphragm opposite to the hollow portion;
• preparing a conductive member, in which an internal connection region connected to the sensor chip through a first connection member is integrated with an external connection region electrically connected to an external circuit by an outer frame;
• forming a first resin mold by molding with mold resin to couple the internal connection region to the external connection region;
• separating the outer frame from the internal connection region and the external connection region;
• arranging the internal connection region of the conductive member in the stem;
• and
• electrically connecting the sensor chip and the internal connection region through the first connection member,
• the conductive member further includes a mounting region between the internal connection region and the external connection region,
• the method for manufacturing the pressure sensor further comprising:
• mounting a circuit element for performing a predetermined process on the mounting region before the arranging of the internal connection region;
• electrically connecting the circuit element and the internal connection region through a second connection member;
• and
• electrically connecting the circuit element and the external connection region through a third connection member, wherein:
• in the forming of the first resin mold, the first resin mold seals the mounting region, the circuit element, the second connection member, and the third connection member.