Grid for plasma ion implant
US9318332B2 · kind B2 · utility
4Cited by
261References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 2013 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Mar 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A grid for minimizing effects of ion divergence in plasma ion implant. The plasma grid is made of a flat plate having a plurality of holes, wherein the holes are arranged in a plurality of rows and a plurality of columns thereby forming beamlets of ions that diverge in one direction. A mask is used to form the implanted shapes on the wafer, wherein the holes in the mask are oriented orthogonally to the direction of beamlet divergence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.