Circuits and methods for measuring circuit elements in an integrated circuit device
First Claim
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1. An integrated circuit device, comprising:
- a plurality of test elements, each comprisingat least one first switch coupled between a node within a tested section and an intermediate node,a test switch coupled between the intermediate node and a forced voltage node, anda second switch coupled between the intermediate node and an output node;
whereinthe forced voltage node is selectively coupled to receive a forced voltage substantially the same as a test voltage applied to the output node.
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Abstract
An integrated circuit device can include a plurality of test elements, each comprising at least one first switch coupled between a node within a tested section and an intermediate node, a test switch coupled between the intermediate node and a forced voltage node, and a second switch coupled between the intermediate node and an output node; wherein the forced voltage node is coupled to receive a forced voltage substantially the same as a test voltage applied to the output node in a test mode.
512 Citations
31 Claims
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1. An integrated circuit device, comprising:
a plurality of test elements, each comprising at least one first switch coupled between a node within a tested section and an intermediate node, a test switch coupled between the intermediate node and a forced voltage node, and a second switch coupled between the intermediate node and an output node;
whereinthe forced voltage node is selectively coupled to receive a forced voltage substantially the same as a test voltage applied to the output node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An integrated circuit device, comprising:
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a plurality of test elements, each comprising at least one first switch coupled between a node within a memory section and an intermediate node, a test switch coupled between the intermediate node and a forced voltage node, and a second switch coupled between the intermediate node and an output node;
whereinthe forced voltage node is selectively coupled to receive a forced voltage substantially the same as a test voltage applied to the output node. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method, comprising:
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in a direct access mode, enabling a first signal path between a first output node and a tested section that includes an intermediate node; and in a low leakage cutoff mode, enabling at least a second signal path between the first output node and the tested section, disabling the first signal path between the tested section and the intermediate node and between the intermediate node and the first output node, and driving the first output node and the intermediate node to substantially a same first test voltage. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification