Bond strength tester with switchable backlash control
US9170189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2014 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Mar 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/859
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A testing apparatus for testing the strength of a material connection to a substrate. A drive mechanism couples a test tool mount to a main body and allows for relative movement between the test tool mount and the main body in an axial direction. A biasing element is coupled between the main body and the test tool mount, that, in operation, biases the test tool mount relative to the main body in an axial direction. The biasing element is switchable between a first state in which the test tool mount is biased either toward or away from the substrate and another state in which the biasing element provides one of: no biasing force to the test tool mount toward or away from the substrate, or a biasing force in a direction opposite to the direction of bias applied in the first state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.