Ion implantation process characterization method
US7943402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2010 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Feb 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L22/14
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A method of characterizing an ion implantation process, the method including a first step of producing a PN junction degraded by the ion implantation of species, the species implantation being obtained by the ion implantation process to be characterized; a second step of measuring a parameter representative of an electrical conduction of the degraded PN junction and a dispersion of the parameter on a surface on which the degraded PN junction is produced, the parameter and the dispersion forming a reference parameter and a reference dispersion, the first and second steps being repeated in time so as to follow the evolution of the parameter representative of electrical conduction with relation to the reference parameter and the dispersion of the representative parameter with relation to the reference dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.