- Patent Title: Device for detecting a laser attack in an integrated circuit chip
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Application No.: US14686908Application Date: 2015-04-15
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Publication No.: US09379066B2Publication Date: 2016-06-28
- Inventor: Fabrice Marinet , Julien Mercier , Jimmy Fort , Alexandre Sarafianos
- Applicant: STMicroelectronics (Rousset) SAS
- Applicant Address: FR Rousset
- Assignee: STMICROELECTRONICS (ROUSSET) SAS
- Current Assignee: STMICROELECTRONICS (ROUSSET) SAS
- Current Assignee Address: FR Rousset
- Agency: Gardere Wynne Sewell LLP
- Priority: FR1251151 20120208
- Main IPC: H01L29/76
- IPC: H01L29/76 ; H01L23/00 ; H01L27/06 ; H01L27/092 ; H01L29/732
Abstract:
A device for detecting a laser attack made on an integrated circuit chip comprises a bipolar transistor of a first type formed in a semiconductor substrate, that bipolar transistor comprising a parasitic bipolar transistor of a second type. A buried region, forming the base of the parasitic bipolar transistor, operates as a detector of the variations in current flowing caused by impingement of laser light on the substrate.
Public/Granted literature
- US20160133582A1 DEVICE FOR DETECTING A LASER ATTACK IN AN INTEGRATED CIRCUIT CHIP Public/Granted day:2016-05-12
Information query
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