Clamp calibration apparatus and method
US6948387B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Sep 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides an apparatus and method to calibrate a clamp, such as a wire clamp, which is suitable for use with a wire-bonding machine for semiconductor devices. A contact means is arranged to be contacted by an arm of the clamping device and a sensing mechanism is positioned in operational relationship with the arm. An indexing means is adapted to change positions of the clamping device relative to the contact means incrementally as said arm maintains contact with the contact means. The sensing mechanism is capable of sensing feedback from said arm at various positions of the clamping device relative to the contact means. The apparatus is particularly suitable for measuring a clamping force and/or a clamping gap between clamping arms of the clamping device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.