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

Claim 0:
1. A probe card, comprising:
a flexible inorganic material layer having a first surface and a second surface opposite to each other;
a metal micro structure disposed on the first surface; and
a circuit board disposed on the second surface, wherein the circuit board is electrically connected to the metal micro structure, and a test signal is adapted to be conducted to the circuit board through the metal micro structure;
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 disposed at an end corresponding to the flexible inorganic material layer, and
wherein the protruding portion directly contacts the metal micro structure.