Probe card device
A probe card device is provided, including a thin film substrate, a first circuit board, and a plurality of probes. The thin film substrate has opposite first and second surface. The first circuit board is disposed over the second surface of the thin film substrate to electrically connect the thin film substrate. The probes are disposed over the first surface of the thin film substrate and are not deformable.
1. A probe card device, comprising:
a thin film substrate having opposite first and second surfaces;
a first circuit board disposed over the second surface of the thin film substrate to electrically connect to the thin film substrate; and
a plurality of probes disposed over the first surface of the thin film substrate, wherein the probes are not deformable, and the plurality of probes and the thin film substrate are integrally formed.
2. The probe card device of claim 1 , wherein there is no gap between the first circuit board and the second surface of the thin film substrate.
3. The probe card device of claim 1 , further comprising a filling material layer disposed between the second surface of the thin film substrate and the first circuit board.
4. The probe card device of claim 1 , further comprising a rigid material layer disposed between the thin film substrate and the first circuit board, wherein the rigid material layer is electrically insulated from the thin film substrate and the first circuit board.
5. The probe card device of claim 4 , further comprising a second circuit board electrically connected to a surface of the first circuit board not electrically connected to the thin film substrate.
6. The probe card device of claim 1 , wherein the thin film substrate comprises a polyimide material.
7. The probe card device of claim 1 , wherein the first circuit board comprises ceramic, silicon, or glass.
8. The probe card device of claim 2 , further comprising a second circuit board electrically connected to a surface of the first circuit board not directly electrically connected to the thin film substrate.
9. The probe card device of claim 8 , further comprising a third circuit board electrically connected to a surface of the second circuit board not directly electrically connected to the first circuit board.
10. The probe card device of claim 9 , further comprising a filling material layer disposed between the first circuit board and the second circuit board.
11. The probe card device of claim 10 , further comprising a filling material disposed between the second circuit board and the third circuit board.
12. The probe card device of claim 1 , wherein the thin film substrate comprises a thin film body, a plurality of thin film connecting points, and at least one inner metal layer; and
the plurality of probes are partially embedded in the film body, wherein the probes and the thin film substrate are simultaneously formed with the plurality of thin film connecting points.
13. The probe card device of claim 1 , wherein the plurality of probes are formed in the thin film substrate and protrude the first surface of the thin film substrate.