Electrical detection method
An electrical detection method provides a wiring structure including a base material body and a plurality of contact portions bonded to the base material body. Each of the contact portions includes an electrical detection pad exposed from a surface of the base material body, an electrical auxiliary pad exposed from the surface of the base material body, and a conductor that electrically connects the electrical detection pad and the electrical auxiliary pad. When probes of a detection device are connected to the contact portions, each of the probes exerts a force on the electrical detection pad and the electrical auxiliary pad of each of the contact portions at the same time, so that the contact force between the probes and the contact portions is enhanced to facilitate the electrical testing.
1 . An electrical detection method, comprising:
providing a wiring structure including a base material body and a plurality of contact portions bonded to the base material body, wherein each of the contact portions includes an electrical detection pad exposed from a surface of the base material body, an electrical auxiliary pad exposed from the surface of the base material body, and a conductor that electrically connects the electrical detection pad and the electrical auxiliary pad; and
connecting probes of a detection device to the contact portions, so that each of the probes exerts a force on the electrical detection pad and the electrical auxiliary pad of each of the contact portions at the same time.
2 . The electrical detection method of claim 1 , wherein the base material body is provided with a plurality of electrical contact pads on the surface of the base material body.
3 . The electrical detection method of claim 2 , wherein a conductive bump is formed on each of the electrical contact pads.
4 . The electrical detection method of claim 1 , wherein the conductor is a conductive trace exposed from the surface of the base material body.
5 . The electrical detection method of claim 1 , wherein the conductor is a conductive trace embedded in the base material body.
6 . The electrical detection method of claim 1 , wherein at least two of the plurality of contact portions are electrically connected to each other via a wiring layer bonded to the base material body.
7 . The electrical detection method of claim 1 , wherein each of the contact portions includes a plurality of the electrical auxiliary pads, and the conductor is electrically connected to the electrical detection pad and the plurality of electrical auxiliary pads.
8 . The electrical detection method of claim 1 , wherein conductive bumps are formed on the electrical detection pad and the electrical auxiliary pad, and the probes contact the conductive bumps.
9 . The electrical detection method of claim 1 , wherein each of the probes has a width of at least 55 microns.
10 . The electrical detection method of claim 1 , wherein a distance between two adjacent probes of the detection device is at least 80 microns.