Probe card, semiconductor inspecting apparatus, and manufacturing method of semiconductor device
View Patent ↗A frame bonded and fixed to a back face of a probe sheet so as to surround a group of pyramid-shaped or truncated pyramid-shaped contact terminals collectively formed at a central region portion of the probe sheet on a probing side thereof is protruded from a multi-layered wiring board, and pressing force is imparted to the frame and a pressing piece at a central portion by a plurality of guide pins having spring property so as to tilt finely.
1. A probe card comprising a probe sheet, the probe sheet including:
a main surface;
a rear surface located on a reverse side of the main surface;
a plurality of contact terminals provided on a main surface side so as to contact with electrodes provided on an object to be inspected;
wires drawn from the contact terminals; and
a plurality of peripheral electrodes electrically connected to the wires and connected to electrodes of a multi-layered wiring board,
the probe card further comprising:
a frame formed so as to surround the plurality of contract terminals;
a first pressing portion for providing a pressing force from a rear surface side of the probe sheet via a pressing piece to a region in which the plurality of contact terminals of the probe sheet are formed;
a second pressing portion for providing a pressing force to the rear surface side of the probe sheet via the frame; and
a connecting portion which connects the first and second pressing portions,
wherein the connecting portion and the pressing piece are not in contact with each other.
2. The probe card according to claim 1 , further comprising
means for allowing tilting of a region where the plurality of contact terminals are formed within a region where the frame is formed.
3. The probe card according to claim 1 , wherein
the plurality of contact terminals are pyramid-shaped or truncated pyramid-shaped,
the electrodes of the multi-layered wiring board are provided with a pressing plate for contacting with the peripheral electrodes of the probe sheet in a pressurizing manner, and
the probe sheet is held so as to protrude from the multi-layered wiring board.
4. The probe card according to claim 1 , wherein
the second pressing portion is disposed such that the region where the frame is formed and the region where the plurality of contact terminals are formed can be tilted.
5. The probe card according to claim 1 , wherein
the probe sheet has at least one of a ground wiring layer and a power source wiring layer electrically connected to the wires, and
the wires connected to the ground wiring layer and the power source wiring layer are formed to have a width larger than that of a wire which is not connected to either of the ground wiring layer and the power source wiring layer.
6. The probe card according to claim 1 , further comprising
wherein the region to which the pressing force is provided from the rear surface side of the probe sheet by the first pressing portion is disposed at a central portion of the probe sheet.
7. The probe card according to claim 1 , wherein
the second pressing portion is a plurality of guide pins having spring property.
8. The probe card according to claim 1 , wherein
the second pressing portion includes a plurality of guide pins having spring property and a plurality of guide pins without spring property.
9. The probe card according to claim 1 , wherein
the plurality of contact terminals are formed by plating utilizing holes formed by etching a substrate having crystalline in an anisotropic manner as mold material.
10. The probe card according to claim 1 , wherein
the object to be inspected includes an insulating film with dielectric constant lower than that of SiO 2 as an insulating film between wiring layers.
11. The probe card according to claim 1 ,
wherein the second pressing portion is plural in number and they are disposed so as to surround the first pressing portion.
12. The probe card according to claim 1 ,
wherein the plurality of contact terminals are disposed below the multi-layered wiring board, and
the wire of the probe sheet is connected to the electrode of the multi-layered wiring board on an upper surface side of the multi-layered wiring board.
13. The probe card according to claim 1 ,
wherein a supporting member fixed to the multi-layered wiring board is disposed outside the frame.
14. A semiconductor inspecting apparatus comprising:
a sample stand on which an object to be inspected is placed; and
a probe card which has a plurality of contact terminals contacting with electrodes provided on the object to be inspected and is electrically connected to a tester inspecting electric characteristics of the object to be inspected, wherein
the probe card comprises a probe sheet, the probe sheet including:
a main surface;
a rear surface located on a reverse side of the main surface;
a plurality of contact terminals provided on a main surface side so as to contact with electrodes provided on the object to be inspected;
wires drawn from each of the contact terminals; and
a plurality of peripheral electrodes electrically connected to the wires and electrodes of a multi-layered wiring board,
the probe card further comprising:
a frame formed so as to surround the plurality of contact terminals;
a first pressing portion for providing a pressing force from a rear surface side of the probe sheet via a pressing piece to a region in which the plurality of contact terminals of the probe sheet are formed;
a second pressing portion for providing a pressing force to the rear surface side of the probe sheet via the frame; and
a connecting portion which connects the first and second pressing portions, and
the connecting portion and the pressing piece are not in contact with each other.
15. The semiconductor inspecting apparatus according to claim 14 , wherein
means for allowing tilting of a region where the plurality of contact terminals are formed within a region where the frame is formed is provided on the probe card.
16. The semiconductor inspecting apparatus according to claim 14 , wherein
the plurality of contact terminals are pyramid-shaped or truncated pyramid-shaped,
the electrodes of the multi-layered wiring board are provided with a pressing plate for contacting with the plurality of peripheral electrodes of the probe sheet in a pressurizing manner, and
the probe sheet is held so as to protrude from the multi-layered wiring board.
17. The semiconductor inspecting apparatus according to claim 14 , wherein
the second pressing portion is disposed such that the region where the frame is formed and the region where the plurality of contact terminals are formed can be tilted.
18. The semiconductor inspecting apparatus according to claims 14 , wherein
the object to be inspected includes an insulating film with dielectric constant lower than that of SiO 2 as an insulating film between wiring layers.