Clamping mechanism for shear testing apparatus
US8424390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Sep 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A shear test device for testing the strength of attachment between a bond and an electronic substrate. The device incorporates a clamping mechanism and a shear test tool that are mounted on a baseplate. During a set-up procedure, the shear test tool is movable relative to the baseplate. During a test procedure, the shear test tool is clamped by the clamping mechanism in a fixed position relative to the baseplate. At least one abutment is provided that is fixed in position relative to the baseplate. During the test procedure, a drive mechanism provides relative movement between the shear test tool and the bond to cause the shear test tool to shear the bond off the substrate. The at least one abutment provides an additional clamping force on the test tool while the test tool is shearing the bond off of the substrate. Strain gauges associated with the shear test tool provide signals to an electric circuit indicating the strength of attachment between the bond and the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.