Bond test apparatus and method
AssigneeNordson Corporation
InventorsMartin Bugg, Robert Deards
Life of this patent
Estimating the term…
Abstract
A bond test apparatus comprises a test tool assembly 200 comprising a test tool 40 configured to contact a bond during a bond test, a flexure 80 coupled to the test tool assembly, and a sensor. The sensor is configured to provide a measurement of a displacement of a first end of the flexure 80 relative to a second end of the flexure on application of a force to the flexure, and a processor is configured to receive a displacement signal from the sensor and, based on the displacement signal and optionally a known stiffness of the flexure, to determine the force on the flexure. A cartridge for a bond test apparatus, a method of measuring a force in a bond test apparatus, and a method of measuring the closing force on the jaws of a bond test tool are also provided.
Claims31
A bond test apparatus, comprising:
- a test tool assembly comprising a test tool configured to contact a bond during a bond test;
- a flexure coupled to the test tool assembly;
- a sensor configured to provide a measurement of a displacement of a first end of the flexure relative to a second end of the flexure on application of a force to the flexure;
- and
- a processor configured to receive a displacement signal from the sensor and to determine the force on the flexure using the displacement signal.
A cartridge for a bond test apparatus, the cartridge comprising:
- a test tool configured to contact a bond during a bond test;
- a flexure;
- and
- a displacement sensor configured to provide a measurement of a displacement of a first end of the flexure relative to a second end of the flexure on application of a force to the flexure.
A method of measuring a force in a bond test apparatus, the method comprising:
- applying a force to a first end of a flexure;
- measuring displacement of the first end of the flexure relative to a second end of the flexure using a displacement sensor;
- and
- determining the force on the flexure using the measured displacement.
A method of measuring the closing force on the jaws of a bond test tool, the method comprising:
- providing a drive mechanism mounted on a first end of a flexure;
- positioning the jaws of the bond test tool around a bond;
- applying a closing force to the jaws of a test tool using the drive mechanism, such that the bond applies a reaction force through the jaws to the drive mechanism, the reaction force causing displacement of the first end of the flexure relative to a second end of the flexure;
- measuring displacement of the first end of the flexure relative to the second end of the flexure using a displacement sensor;
- and
- calculating the force on the flexure using the measured displacement.
Dependencies are inferred from the claim text.