Spectral module and method for manufacturing spectral module

A spectroscopic module comprising:

• a support body having a bottom wall portion and a side wall portion surrounding a space on one side of the bottom wall portion;
• a spectroscopic portion provided on the one side of the bottom wall portion and having a plurality of grating grooves;
• a photodetector attached to the side wall portion so as to face the spectroscopic portion via the space and having a plurality of photodetection channels;
• a plurality of first terminals provided on a surface of the support body on a side opposite to the space so as to be disposed along the surface of the support body and electrically connected to the photodetector;
• and
• a wiring unit having a plurality of second terminals respectively facing the plurality of first terminals and respectively joined to the plurality of first terminals, and a plurality of third terminals respectively and electrically connected to the plurality of second terminals, wherein
• the wiring unit further has a plurality of wirings respectively connecting the plurality of second terminals and the plurality of third terminals, and a support substrate, and
• a bending strength of the support substrate is smaller than a bending strength of the support body.