Spatial transformer for RF and low current interconnect
US7425837B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 18, 2006 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | May 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/316
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spatial transformer includes an insulating substrate; a plurality of test terminal assemblies on the substrate; and a plurality of contact surfaces on the transformer, each providing an interconnection point for electrical connection between a respective test terminal assembly and a device under test. Each test terminal assembly has a center conductor trace on an upper substrate surface; a lower substrate guard trace beneath the center conductor trace; and a pair of upper substrate guard traces adjacent to opposite sides of the center conductor trace, the guard traces being electrically interconnected. The guard traces in combination with the center conductor trace provide a desired characteristic impedance for an RF signal applied therebetween or a guarded DC connection for a DC signal applied to the center conductor trace and a DC guard applied to the guard traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.