Probe card interposer
First Claim
1. A probe card interposer for being installed between a multi-layer PCB and a probe head, comprising:
- a substrate having a first surface and a second surface; and
a plurality of first conductive bumps disposed on the first surface, each first conductive bump including a first dielectric core and a plurality of first contact wires, each first contact wire having a first fixed end and a first suspended end, wherein the first fixed ends are bonded to the first surface adjacent to the corresponding first dielectric cores, and the first suspended ends extend toward the centers of the corresponding first dielectric cores such that the first contact wires can be elastically supported by the corresponding first dielectric cores.
1 Assignment
0 Petitions
Accused Products
Abstract
A probe card interposer includes a substrate with a plurality of conductive bumps disposed on first surface of the substrate. Each conductive bump comprises a dielectric core and a plurality of conductive leads. The suspended ends of the conductive wires extend toward the centers of the corresponding dielectric cores and are elastically supported by the corresponding dielectric cores. Therefore, the interposer can be installed between a probe head and a multi-layer PCB to make good electrical contacts to the probe head through the conductive bumps. In the embodiment, a plurality of symmetric conductive bumps are disposed on second surface of the substrate and are electrically connected to the conductive bumps on first surface of the substrate through vias or conductive posts. The conductive bumps can electrically contact the multi-layer PCB.
34 Citations
18 Claims
-
1. A probe card interposer for being installed between a multi-layer PCB and a probe head, comprising:
-
a substrate having a first surface and a second surface; and
a plurality of first conductive bumps disposed on the first surface, each first conductive bump including a first dielectric core and a plurality of first contact wires, each first contact wire having a first fixed end and a first suspended end, wherein the first fixed ends are bonded to the first surface adjacent to the corresponding first dielectric cores, and the first suspended ends extend toward the centers of the corresponding first dielectric cores such that the first contact wires can be elastically supported by the corresponding first dielectric cores. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A probe card interposer comprising:
-
a substrate having a first surface and a second surface, the substrate including a plurality of first bonding pads on the first surface, a plurality of second bonding pads on the second surface, and a plurality of conductive posts electrically connecting the first bonding pads and the second bonding pads; and
a plurality of first conductive bumps disposed on the first bonding pads of the substrate, each first conductive bump including a plurality of first contact wires formed by wire bonding, wherein each first contact wire has a suspended end extending toward the centers of the corresponding first bonding pads. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A probe card interposer comprising:
-
a substrate having a first surface and a second surface, the substrate including a plurality of first bonding pads on the first surface, a plurality of second bonding pads on the second surface, wherein the first bonding pads are electrically connected to and aligned with the corresponding second bonding pads; and
a plurality of first conductive bumps disposed on the first bonding pads of the substrate, each first conductive bump including a plurality of first contact wires formed by wire bonding, wherein each first contact wire has two first fixed ends bonded to the first bonding pads and a first suspended portion extending across the centers of the corresponding first bonding pads. - View Dependent Claims (17, 18)
-
Specification