Correction of fabricated shapes in additive manufacturing
US11154961B2 · kind B2 · utility
1Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Jan 8, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/736
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of fabricating a polishing pad using an additive manufacturing system includes receiving data indicative of a desired shape of the polishing pad to be fabricated by droplet ejection. The desired shape defines a profile including a polishing surface and one or more grooves on the polishing pad. Data indicative of a modified pattern of dispensing feed material is generated to at least partially compensate for distortions of the profile caused by the additive manufacturing system, and a plurality of layers of the feed material are dispensed by droplet ejection in accordance to the modified pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.