HDL Design Structure for Integrating Test Structures into an Integrated Circuit Design
First Claim
1. A hardware description language (HDL) design structure encoded on a machine-readable data storage medium, said HDL design structure comprising elements that when processed in a computer-aided design system generates a machine-executable representation of a test structure, wherein said HDL design structure comprises:
- an IC design comprising at least one device and at least one element;
a library comprising at least one device under test (DUT), wherein the at least one DUT matches the at least one device; and
a modified IC design comprising at least one control structure, the control structure coupled to the at least one DUT and the at least one element.
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Accused Products
Abstract
A hardware description language (HDL) design structure for performing device-specific testing and acquiring parametric data on integrated circuits, such that each chip can be tested individually without excessive test time requirements, additional silicon, or special test equipment. The HDL design structure includes a functional representation of at least one device test structure integrated into an IC design which tests a set of dummy devices that are identical or nearly identical to a selected set of devices contained in the IC. The test structures are integrated from a device under test (DUT) library according to customer requirements and design requirements. The functional representations of selected test structures are further prioritized and assigned to design elements within the design in order of priority. Placement algorithms use design, layout, and manufacturing requirements to place the selected functional representations of test structures into the final layout of the design.
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Citations
10 Claims
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1. A hardware description language (HDL) design structure encoded on a machine-readable data storage medium, said HDL design structure comprising elements that when processed in a computer-aided design system generates a machine-executable representation of a test structure, wherein said HDL design structure comprises:
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an IC design comprising at least one device and at least one element; a library comprising at least one device under test (DUT), wherein the at least one DUT matches the at least one device; and a modified IC design comprising at least one control structure, the control structure coupled to the at least one DUT and the at least one element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification