Lapping carrier and method
US8137157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 25, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B37/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided is a double-sided lapping carrier comprising a base carrier having a first major surface, a second major surface and at least one aperture for holding a workpiece, said aperture extending from the first major surface through the base carrier to the second major surface, wherein the base carrier comprises a first metal, the circumference of said aperture is defined by a third surface of the base carrier consisting of the first metal and, at least a portion of the first major surface or at least a portion of each of the first and the second major surfaces comprises a polymeric region, said polymeric region comprising a polymer having a work to failure of at least 10 Joules. Also provide are methods of lapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.