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US 7,928,750 B2Granted
Contactless interfacing of test signals with a device under test
AssigneeFormFactor, Inc.
InventorCharles A. Miller
Life of this patent
Estimating the term…
Abstract
An interface device receives test data from a tester. A signal representing the test data is transmitted to a device under test through electromagnetically coupled structures on the interface device and the device under test. The device under test processes the test data and generates response data. A signal representing the response data is transmitted to the interface device through electromagnetically coupled structures on the device under test and the interface device.
Claims14
An interface apparatus comprising:
- a substrate;
- tester communicating means for communicating with a tester, said tester communicating means disposed on said substrate;
- contactless communications means for communicating a test signal from said tester communicating means to a terminal of a device under test without physically contacting said terminal, said contactless communications means comprising a coupling trace disposed to be placed in proximity to said terminal of said device under test and electromagnetically couple with said terminal, wherein said test signal on said coupling trace generates a similar test signal on said terminal.
An interface apparatus comprising:
- electrically conductive elements connectable to a tester;
- electrically conductive structures disposed to be electromagnetically coupled with electrical conductors of a device under test without physically contacting said conductors, wherein a test signal on one of said conductive structures generates a similar test signal on one of said conductors with which said one of said conductive structures is electromagnetically coupled;
- and
- a substrate, wherein said electrically conductive structures are disposed on said substrate to correspond to said conductors on said device under test.
1 more element
Dependencies are inferred from the claim text.