Patent ID: 11959940
Assignee: YOKOWO CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 21:
22. A system comprising a semiconductor package in which a recess is formed in a terminal portion and a contact probe for inspection of the semiconductor package, the contact probe comprising:
a plunger including a distal end portion that comes into contact with the terminal portion, wherein the distal end portion includes
a protruding portion protruding toward the terminal portion, and
a shoulder portion having a protruding height toward the terminal portion lower than that of the protruding portion,

the distal end portion is configured such that the shoulder portion does not come into contact with the terminal portion when the protruding portion comes into contact with the terminal portion and that the shoulder portion comes into contact with the terminal portion when the protruding portion does not come into contact with the terminal portion.