Integrated circuit and associated packaged integrated circuit having an integrated marking apparatus
First Claim
1. An integrated circuit comprisingan integrated functional circuit to be tested;
- a test interface that connects the functional circuit to a test apparatus which performs a function test on the functional circuit to ascertain a test result; and
an integrated self-marking apparatus that produces a magnetically readable marking on the basis of the test result.
1 Assignment
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Accused Products
Abstract
An integrated circuit and an associated packaged integrated circuit are provided which improve testability and reduce the test costs. The integrated circuit contains an integrated functional circuit to be tested, a test interface that connects the functional circuit to a test apparatus which performs a function test on the functional circuit to ascertain a test result, and an integrated self-marking apparatus that produces a marking on the basis of the test result. The marking can be magnetic or optical or electrical, volatile or nonvolatile, and thermally or electrically activated. The test apparatus includes an external test unit or an integrated self-test unit. Nonvolatile memory elements store the test results in a buffer.
25 Citations
19 Claims
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1. An integrated circuit comprising
an integrated functional circuit to be tested; -
a test interface that connects the functional circuit to a test apparatus which performs a function test on the functional circuit to ascertain a test result; and an integrated self-marking apparatus that produces a magnetically readable marking on the basis of the test result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A packaged integrated circuit comprising:
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an integrated circuit to be tested; a test interface that connects the integrated circuit to a test apparatus which performs a function test for the integrated circuit to ascertain a test result; and a package self-marking apparatus, formed in a package, that produces a magnetically readable package marking on the basis of the test result. - View Dependent Claims (13)
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14. An integrated circuit comprising
an integrated functional circuit to be tested: -
a test interface that connects the functional circuit to a test apparatus which performs a function test on the functional circuit to ascertain a test result an integrated self-marking apparatus that contains a multiplicity of self-marking apparatus components that produce marking components of different types on the basis of test result components from the integrated functional circuit wherein the self-marking apparatus comprises marking elements that produce the marking components and at least one marking element activation unit that activates the marking components; and wherein at least one of the marking elements comprises a magnetic marking element that produces a magnetically readable marking component and a marking element activation unit that activates the marking component. - View Dependent Claims (15, 16, 17)
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18. The integrated circuit as claimed in 14, wherein at one of the marking components can be detected contactlessly.
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19. An integrated circuit comprising
an integrated functional circuit to be tested: -
a test interface that connects the functional circuit to a test apparatus which performs a function test on the functional circuit to ascertain a test result an integrated self-marking apparatus that contains a multiplicity of self-marking apparatus components that produce marking components of different types on the basis of test result components from the integrated functional circuit; wherein the self-marking apparatus comprises marking elements that produce the marking components and at least one marking element activation unit that activates the marking components; and wherein at least one of the marking elements comprises a field sensitive marking element, and the at least one marking element activation unit comprises a field sensitive marking element activation unit that brings about a change in an electrical field.
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Specification