Device for detecting a laser attack in an integrated circuit chip
US8907452B2 · kind B2 · utility
3Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2013 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Mar 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/615
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A device for detecting a laser attack in an integrated circuit chip formed in the upper P-type portion of a semiconductor substrate incorporating an NPN bipolar transistor having an N-type buried layer, including a detector of the variations of the current flowing between the base of said NPN bipolar transistor and the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.