Stepped PCB for probe card, probe card having the same and method for clamping the probe card
AssigneeMpi Corporation
InventorsFu-Chin Lu, Chi-Chong Chien
Life of this patent
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Abstract
A stepped printed circuit board for a probe card and for clamping by a testing machine is disclosed. The stepped printed circuit board includes a main body and a protruding body. The main body has a conductive circuit pattern arranged therein and a border area for the clamping of the testing machine. The protruding body is joined to a bottom side of the main body beyond the border area and defines with the bottom side of the main body an elevational difference. The protruding body has a conductive circuit pattern arranged therein and electrically connected to the conductive circuit pattern of the main body.
Claims9
A stepped printed circuit board for a probe card and for clamping by a testing machine, the stepped printed circuit board comprising:
- a main body having a conductive circuit pattern arranged therein, a protruding body portion protruding from a bottom side of the main body, and a border area surrounding the protruding body for the clamping of the testing machine;
- the protruding body having a thickness greater than a thickness of the border area such that a bottom surface of said protruding body and a bottom surface of said border area define an elevational difference, said protruding body having a conductive circuit pattern arranged therein and electrically connected to the conductive circuit pattern of said main body;
- wherein said protruding body is integrally formed together with said main body as a single-piece structure.
Dependencies are inferred from the claim text.