Systems, devices, and methods for testing integrated circuits in their native environments

A unitary printed circuit board (PCB) for testing an integrated circuit (IC), the unitary PCB comprising:

• a main board portion on a first side of a separation line, the main board comprising a first plurality of pads;
• and
• a flexible PCB portion on a second side of the separation line, the flexible PCB portion comprising:
• a plurality of through-holes disposed on a first end of the flexible PCB portion;
• and
• a plurality of connectors disposed on a second end of the flexible PCB portion, the plurality of connectors configured to connect the flexible PCB portion to an external test circuit, wherein:
• the main board portion and the flexible PCB portion are configured to be detached from each other at the separation line,
• a layout of the plurality of through-holes of the flexible PCB portion to matches a layout of the first plurality of pads of the main board portion, wherein the plurality of through-holes are configured to be aligned and soldered to the first plurality of pads.