Method for producing a pressure sensor device and pressure sensor device

A method for producing a pressure sensor device, comprising the following steps:

• providing a vessel that includes a cavity having side walls, the cavity including a floor and the side walls each including an upper side, which face away from the floor;
• providing a pressure sensor and situating the pressure sensor in the cavity and on the floor;
• filling the cavity with an oil in such a way that the oil fills the cavity up to the upper sides of the side walls and forms a surface;
• applying a membrane onto the surface of the oil that completely covers the oil and at least in some regions onto the upper sides of the side walls, in such a way that the membrane covers, circumferentially around the cavity, those regions of the upper sides of the side walls that lie against the oil, the membrane including a liquid material when applied onto the oil;
• and
• curing the liquid material of the membrane,
• wherein the membrane seals the cavity from a surrounding environment in airtight, oil-tight, and watertight fashion,
• wherein the membrane is applied in liquid form,
• wherein the membrane is lipophilic, and wherein inner sides of the side walls are lipophilic.