THERMOANALYTICAL SENSOR, AND METHOD OF MANUFACTURING THE SENSOR

摘要

A thermoanalytical sensor has a substrate, a measurement position, a temperature sensor unit, and an electrical contact pad. The temperature sensor unit senses the temperature at the measurement position. It is connected via the electrical contact pad to a metallic wire and thereby tied into an electronic circuit. The substrate is prepared with at least one measurement position, at least one temperature sensor unit and at least one electrical contact pad on a top side of the substrate. A passage in the substrate allows connection to the electrical contact pad. A metallic wire is inserted into the passage from the bottom side of the substrate and melted into a small ball on the upper end of the wire. A materially integral connection as a bonded joint between the upper end of the metallic wire and the electrical contact pad is made by applying pressure and heat to the metal ball.

主权项

1. A method for manufacturing a thermoanalytical sensor for use in a thermoanalytical instrument, the method comprising the steps of:
preparing a substrate having a top side and an underside; creating, on the top side of the substrate, at least one measurement position, and, for each said measurement position created, arranging a temperature sensor unit, an electrical contact pad and a passage through the substrate, such that the passage is proximate to the electrical contact pad, which is in electrical communication with the temperature sensor unit on the top side of the substrate; inserting, into each passage, a metallic wire, such that an upper end of each metallic wire extends above the passage on the top side of the substrate; melting the upper end of each metallic wire, thereby forming a metal ball at the upper end; and applying pressure and heat to each formed metal ball, forming a materially integral connection between the upper end of the metallic wire and the electrical contact pad.