Patent ID: 11860193
Assignee: MITSUI CHEMICALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 14:
15. An anisotropic conductive sheet set comprising:
a first anisotropic conductive sheet including a plurality of first conduction paths extending through the first anisotropic conductive sheet in a thickness direction of the first anisotropic conductive sheet, and a first insulation layer disposed to fill a gap between the plurality of first conduction paths, the first insulation layer including a third surface and a fourth surface; and
a second anisotropic conductive sheet including a plurality of second conduction paths extended in a thickness direction of the second anisotropic conductive sheet, and a second insulation layer disposed to fill a gap between the plurality of second conduction paths, the second insulation layer including a fifth surface and a sixth surface;
wherein the first anisotropic conductive sheet and the second anisotropic conductive sheet are configured to be stacked such that the third surface of the first insulation layer and the sixth surface of the second insulation layer face each other,
wherein a center-to-center distance p2 of the plurality of second conduction paths on a fifth surface side is smaller than a center-to-center distance p1 of the plurality of first conduction paths on a third surface side,
wherein a rockwell hardness of the fifth surface of the second anisotropic conductive sheet is smaller than a rockwell hardness of the third surface of the first anisotropic conductive sheet, and
wherein at least one of the first anisotropic conductive sheet or the second anisotropic conductive sheet is an anisotropic conductive sheet,
wherein the anisotropic conductive sheet comprises:
a plurality of conduction paths; and
an insulation layer disposed to fill a gap between the plurality of conduction paths, the insulation layer including a first surface and a second surface,

wherein each of the plurality of conduction paths extends in a thickness direction of the insulation layer, and includes a first end portion on a first surface side of the insulation layer and a second end portion on a second surface side of the insulation layer, and
wherein when each of the plurality of conduction paths is viewed through such that a center of the first end portion and a center of the second end portion overlap each other, at least a part of each of the plurality of conduction paths does not overlap the first end portion and the second end portion.