Method and apparatus for integrated circuit failure analysis
First Claim
1. An apparatus for detecting and locating a fault in an integrated circuit structure formed in one or more insulating layers deployed on a semiconductor substrate, comprising:
- a probe tool capable of detecting a fault in the integrated circuit structure;
a laser tool capable of forming an electrical connection between the integrated circuit structure and the semiconductor substrate;
a controller coupled to the probe tool and the laser tool, wherein the controller is capable of directing the laser tool to form the electrical connection between the integrated circuit structure and the semiconductor substrate in response to detecting the fault in the integrated circuit structure;
a source for providing an electrical charge to the integrated circuit structure in response to detecting the fault in the integrated circuit structure; and
a detector for detecting an electrical charge accumulation in at least a portion of the integrated circuit structure.
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Accused Products
Abstract
The present invention provides a method and apparatus for detecting and locating a fault in an integrated circuit structure formed in one or more insulating layers deployed on a semiconductor substrate. The apparatus includes a probe tool capable of detecting a fault in the integrated circuit structure, a laser tool capable of forming an electrical connection between the integrated circuit structure and the semiconductor substrate, and a controller coupled to the probe tool and the laser tool, wherein the controller is capable of directing the laser tool to form the electrical connection between the integrated circuit structure and the semiconductor substrate in response to detecting the fault in the integrated circuit structure. The apparatus also includes a source for providing an electrical charge to the integrated circuit structure in response to detecting the fault in the integrated circuit structure and a detector for detecting an electrical charge accumulation in at least a portion of the integrated circuit structure.
15 Citations
30 Claims
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1. An apparatus for detecting and locating a fault in an integrated circuit structure formed in one or more insulating layers deployed on a semiconductor substrate, comprising:
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a probe tool capable of detecting a fault in the integrated circuit structure;
a laser tool capable of forming an electrical connection between the integrated circuit structure and the semiconductor substrate;
a controller coupled to the probe tool and the laser tool, wherein the controller is capable of directing the laser tool to form the electrical connection between the integrated circuit structure and the semiconductor substrate in response to detecting the fault in the integrated circuit structure;
a source for providing an electrical charge to the integrated circuit structure in response to detecting the fault in the integrated circuit structure; and
a detector for detecting an electrical charge accumulation in at least a portion of the integrated circuit structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for detecting and locating a fault in an integrated circuit structure formed in one or more insulating layers deployed on a semiconductor substrate, comprising:
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a probe tool capable of detecting a fault in the integrated circuit structure;
a laser tool capable of forming an electrical connection between the integrated circuit structure and the semiconductor substrate;
a scanning electron microscope; and
a controller coupled to the probe tool, the laser tool, and the scanning electron microscope, wherein the controller is capable of directing the laser tool to form the electrical connection between the integrated circuit structure and the semiconductor substrate in response to detecting the fault in the integrated circuit structure, and wherein the scanning electron microscope is capable of providing an electrical charge to the integrated circuit structure and detecting an electrical charge accumulation in at least a portion of the integrated circuit structure in response to detecting the fault in the integrated circuit structure. - View Dependent Claims (15, 16, 17)
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18. A method for detecting and locating faults in an integrated circuit structure formed on a substrate, comprising:
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probing the integrated circuit structure to determine if a fault exists in the integrated circuit structure using a probe tool;
forming an electrical connection between the integrated circuit structure and the substrate using a laser tool;
determining a location of the fault in the integrated circuit structure using a scanning electron microscope. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification