Inspection apparatus for conductive patterns of a circuit board, and a holder thereof
First Claim
1. An inspection apparatus comprising:
- an inspection chip for inspecting a conductive pattern of a circuit board in a non-contact manner;
an insulative package mounting said inspection chip thereon with allowing an inspection surface of said inspection chip to be exposed out of said insulative package;
a chip-side bump electrode provided at each of electrode pads of said inspection chip;
a package-side bump electrode provided at a lead of said package;
an anisotropic conductor disposed to cover at least said chip-side bump electrode and said package-side bump electrode; and
a conductor layer located on said anisotropic conductor and extending at least in the range of said chip-side bump electrode to said package-side bump electrode, wherein said anisotropic conductor is thermo-compression bonded in between said conductor layer and said chip-side bump electrode and in between said conductor layer and said package-side bump electrode, so as to electrically connect said chip-side bump electrode with said package-side bump electrode through said conductor layer.
1 Assignment
0 Petitions
Accused Products
Abstract
An inspection apparatus is provided capable of adequately positioning an inspection chip to a conductive pattern as an inspection object. For connecting an electrode pad 1b of an inspection chip 1 with a lead 2a of a package 2, bump electrodes 3 and 4 are first provided at the inspection chip and at the package, respectively. Then, an anisotropic conductor 5 is provided to cover between the bump electrodes 3 and 4, and a conductor film 6 is provided on the anisotropic conductor 5 to extend between the bump electrodes 3 and 4. The anisotropic conductor 5 is thermo-compression bonded to provide an electrical connection between the conductor film 6 and the bump electrodes 3 and 4. This structure may provide a desirable surface of the inspection chip 1 having a sufficiently reduced thickness.
23 Citations
16 Claims
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1. An inspection apparatus comprising:
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an inspection chip for inspecting a conductive pattern of a circuit board in a non-contact manner;
an insulative package mounting said inspection chip thereon with allowing an inspection surface of said inspection chip to be exposed out of said insulative package;
a chip-side bump electrode provided at each of electrode pads of said inspection chip;
a package-side bump electrode provided at a lead of said package;
an anisotropic conductor disposed to cover at least said chip-side bump electrode and said package-side bump electrode; and
a conductor layer located on said anisotropic conductor and extending at least in the range of said chip-side bump electrode to said package-side bump electrode, wherein said anisotropic conductor is thermo-compression bonded in between said conductor layer and said chip-side bump electrode and in between said conductor layer and said package-side bump electrode, so as to electrically connect said chip-side bump electrode with said package-side bump electrode through said conductor layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An inspection apparatus comprising:
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an inspection chip for inspecting a conductive pattern of a circuit board in a non-contact manner;
an insulative package mounting said inspection chip thereon with allowing an inspection surface of said inspection chip to be exposed out of said insulative package;
a chip-side bump electrode provided at each of electrode pads of said inspection chip;
a package-side bump electrode provided at a lead of said package;
an anisotropic conductor disposed to cover at least said chip-side bump electrode and said package-side bump electrode; and
a conductor layer located on said anisotropic conductor and extending at least in the range of said chip-side bump electrode to said package-side bump electrode, wherein said anisotropic conductor is thermo-compression bonded in between said conductor layer and said chip-side bump electrode and in between said conductor layer and said package-side bump electrode, so as to electrically connect said chip-side bump electrode with said package-side bump electrode through said conductor layer, wherein an inspection signal applied to said conductive pattern is detected through a coupling capacitance lying between said inspection chip and said conductive pattern. - View Dependent Claims (10)
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11. A holder for holding an inspection apparatus, said holder comprising:
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a holding table;
an elastic member provided on the holding table;
a holding member mounted on the holding table; and
a claw provided on the holding member;
wherein the inspection apparatus, having a step down portion at an upper surface of the inspection apparatus, is held on the elastic member, engaging the step down portion with the claw, and wherein the inspection apparatus has an external electrode on the outside surface thereof, thereby inspecting a conducting pattern of a circuit board in the inspection apparatus in a non-contact manner. - View Dependent Claims (12, 13)
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14. A holder for holding an inspection apparatus, said holder comprising:
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a holding table;
an elastic member provided on the holding table; and
an engaging member provided on an upper surface of the elastic member wherein the inspection apparatus, having a step down portion at an upper surface of the inspection apparatus, is held on the elastic member, engaging the step down portion with the engaging member, and wherein the inspection apparatus has an external electrode on the outside surface thereof, thereby inspecting a conducting pattern of a circuit board in the inspection apparatus in a non-contact manner. - View Dependent Claims (15)
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16. A holder for holding an inspection apparatus, said holder comprising:
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a holding table;
an elastic member provided on the holding table;
a probe mounted on the holding table to extend to the upper surface of the elastic member;
a holding member mounted on the holding table; and
a claw provided on the holding member;
wherein the inspection apparatus, having a step down portion at an upper surface of the inspection apparatus, is held on the elastic member, engaging the step down portion with the claw, wherein the inspection apparatus has an external electrode on the outside surface thereof, and wherein the external electrode contacts the probe, thereby inspecting a conducting pattern of a circuit board in the inspection apparatus in a non-contact manner.
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Specification