Patent ID: 7365561

Claim:
A test probe having a conductive part electrically connected to terminals of a test-object device, comprising: a silicon substrate having a thickness of 200 μm or less; a protrusion made of resin provided on the silicon substrate, the protrusion surface being formed in a shape of an arch when seen cross-sectionally, bulging in a direction opposite from the silicon substrate; a first conductive part provided on the protrusion so that the protrusion is disposed between the first conductive part and the substrate, the first conductive part being adapted to come in contact with the terminals; a second conductive part provided on the silicon substrate in a region other than a region having the protrusion, the second conductive part being electrically connected to the first conductive part; a first insulating layer provided between the silicon substrate and the second conductive part; a second insulating layer provided so as to cover the first insulating layer; a third insulating layer made of resin provided on a second surface of the silicon substrate opposite from a first surface having the protrusion and the conductive part; and an electronic unit mounted on the second conductive part by an anisotropic adhesive and supplying electric signals to the terminals through the first conductive part, the electronic unit being identical to an electronic unit that is mounted on the test-object device for driving the test-object device after a test; wherein the first conductive part includes a plurality of first wiring patterns arranged in a Y-axis direction corresponding to scanning line terminals of the test-object device, the second conductive part includes a plurality of second wiring patterns coupled to the first wiring patterns, arranged to extend in an X-axis direction perpendicular to the Y-axis direction in the region other than the region having the protrusion, and the protrusion extends in the Y-axis direction and supports each of the plurality of first wiring patterns.