Vacuum-actuated test fixture for testing printed circuit boards
US7119559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2004 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Jun 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/07328
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test fixture for testing a circuit board, comprising a top plate defining a board-bearing surface for receiving the circuit board to be tested thereon. The test fixture comprises a lid having a lid frame defining a peripheral rim, and a lid diaphragm movably mounted to the frame opposite the peripheral rim; the lid diaphragm defines an inner surface to which is mounted a circuit board securing member. The lid is movable between a first position where the frame rim engages the top plate to define a test chamber about the board-bearing surface and between the top plate, the frame and the diaphragm, and a second position where the lid is moved away from the top plate to allow access to the test chamber. The lid diaphragm is movable relative to the frame at least when the lid is in the first position between a rest position where the securing member is moved away from the board-bearing surface and an operative position where the securing member is moved towards the board-bearing surface for engaging and securely holding the circuit board thereon. The test fixture further comprises a diaphragm biasing member continuously biasing the diaphragm towards the rest position, and an actuator…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.