Adaptive flexible chip test socket and formation method thereof

An adaptive die test socket, comprising:

• an upper test socket and a lower test socket disposed directly below the upper test socket, wherein the upper test socket and the lower test socket are capable of moving relative to each other along a vertical direction;
• and a groove is formed at a lower surface of the upper test socket and/or at an upper surface of the lower test socket, such that an accommodating chamber for placing a die to-be-tested is formed between the upper test socket and the lower test socket at a mold-closed state, wherein:
• the upper test socket is connected to a support frame through an installation plate disposed above the upper test socket, wherein the support frame is capable of moving along a vertical direction;
• a strip-shaped through hole is formed on an upper surface of the support frame;
• a first protruding strip is at each of lower portions of two opposite inner walls of the strip-shaped through hole;
• a corresponding second protruding strip extending directly above the first protruding strip is at each of upper portions of two opposite side surfaces of the installation plate;
• a strip-shaped block is disposed above each second protruding strip;
• and a side of the strip-shaped block is fixedly connected to the upper surface of the support frame, and another side of the strip-shaped block extends to directly above the second protruding strip and is connected to the second protruding strip through at least two springs;
• when the upper test socket and the lower test socket are at a mold-opening state, a lower surface of the second protruding is adjoined to be in a contact with an upper surface of a corresponding first protruding strip;
• and
• when the upper test socket and the lower test socket are at the mold-closed state, the lower surface of the upper test socket is tightly attached to the upper surface of the lower test socket, and a gap is formed between the lower surface of the second protruding strip and the upper surface of the first protruding strip.