Signal-measuring device for controlling temperature, cell culture apparatus comprising the same, and manufacturing method of signal measuring device

A cell culture apparatus comprising:

• a signal-measuring device configured to control a temperature, the signal-measuring device comprising:
• a plurality of measuring electrodes configured to contact a target object and measure a signal from the target object, wherein at least a portion of the plurality of measuring electrodes is outwardly exposed from the signal-measuring device in a first direction,
• a plurality of light sources configured to emit light in the first direction;
• and
• a heat transfer body on a path of the light emitted from at least some of the plurality of light sources, the heat transfer body configured to provide, to the target object, heat energy by the light emitted from the at least some of the plurality of light sources;
• and
• a container wall comprising a shape protruding from a surface of the signal-measuring device, wherein, in a view of the cell culture apparatus in the first direction, the shape surrounds the plurality of measuring electrodes, the plurality of light sources, and the heat transfer body.

A manufacturing method of a signal-measuring device for controlling a temperature, the manufacturing method comprising:

• providing a guide layer on a first surface of a substrate, the guide layer including a plurality of guide holes;
• inserting a plurality of light sources into the plurality of guide holes, respectively;
• providing a power line, the power line configured to supply power to the plurality of light sources;
• coating the plurality of light sources and the power line such that the plurality of light sources and the power line are not outwardly exposed;
• providing, on a second surface of the substrate, a plurality of measuring electrodes configured to contact a target object and measure a signal from the target object, wherein at least a portion of the plurality of measuring electrodes is exposed to the outside of the signal-measuring device;
• and
• providing a heat transfer body on a path along which at least some of the plurality of light sources are configured to emit light,
• wherein the at least some of the plurality of light sources are further configured to provide heat energy to the target object by emitting the light.