Thermoelectric semiconductor cooler and thermoelectric cooler module

The invention provides a thermoelectric semiconductor cooler and a thermoelectric cooler module, and belongs to the technical field of semiconductor refrigeration. The thermoelectric semiconductor cooler comprises a first base plate and a second base plate which are parallel to and opposite to each other, wherein the first base plate is provided with a first plane facing to the second base plate,the second base plate is provided with a second plane facing to the first base plate, a plurality of thermoelectric couples are arranged between the first base plate and the second base plate, the thermoelectric couples are communicated with the first plane and the second plane so as to form a functional region with a current path, and a non-functional region is further formed in the first base plate or the second base plate, or non-functional regions are formed in the first base plate and the second base plate. The non-functional regions which can not form a current path are arranged on the first base plate and the s