A method of manufacturing a crystal body unit for a sensor device, method of manufacturing a sensor device, system and method for detecting a measured variable, and the sensor device

The invention relates to a method of fabricating a crystal body unit (1100) for a sensor device. The method includes a step of preparing a cohesive connection between an optically at least partially transparent support substrate (1115) and at least one crystal body (100) having at least one defect. The method also includes a step of treating the support substrate (1115) and / or the at least one crystalline body (100). In this case of treating the at least one crystalline body (100) and / or the support substrate (1115) is divided into individual segments in the step.