Patent ID: 11959941
Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. A probe card, comprising:
a flexible inorganic material layer having a plurality of surfaces;
a metal micro structure disposed on at least one of the plurality of surfaces and having a connection end;
a circuit board connected to the connection end, wherein a test signal is adapted to be conducted to the circuit board through the metal micro structure; and
at least two guide plates, wherein each of the at least two guide plates has a plurality of through-holes, and the flexible inorganic material layer and the metal micro structure penetrate the plurality of through-holes of each of the at least two guide plates;
wherein a yield strength of the flexible inorganic material layer is greater than 500 MPa, or a Young's modulus of the flexible inorganic material layer is greater than 50 GPa,
wherein the metal micro structure comprises a protruding portion and the protruding portion is located at an end opposite to the connection end, and
wherein the protruding portion directly contacts the metal micro structure.