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Laser detector using latch and semiconductor device including laser detector

A technology of laser detectors and latches, used in photometry using electrical radiation detectors, record carriers used in machines, semiconductor devices, etc., can solve problems such as occupation, difficult to detect laser attacks, large circuit areas, etc.

Active Publication Date: 2021-04-20
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such laser detectors often have the possibility of downward detection
Furthermore, such flip-flop based laser detectors occupy a relatively large circuit area
In addition, with the continuous development of micro-scale semiconductor processes, it is becoming more and more difficult to detect laser attacks

Method used

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  • Laser detector using latch and semiconductor device including laser detector
  • Laser detector using latch and semiconductor device including laser detector
  • Laser detector using latch and semiconductor device including laser detector

Examples

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Embodiment Construction

[0042]Hereinafter, the inventive concept will be described more fully with reference to the accompanying drawings showing the embodiments. Inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0043] It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. As used here...

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Abstract

A laser detector using a latch and a semiconductor device including the laser detector are provided. The laser detector includes: a latch configured to output an output signal and an inverted output signal; and an initial value setting circuit configured to set an initial value of at least one of the output signal and the inverted output signal. The latch includes a first transistor controlled to be turned on first by an initial value and a second transistor controlled to be turned off first by an initial value. The second transistor has an active region including a lateral area greater than that of the first transistor.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2015-0016167 filed on Feb. 2, 2015, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] Embodiments of the inventive concept relate to a laser detector and a semiconductor device (for example, a memory device or a system on a chip (SoC)) including the laser detector, and more particularly, to a laser detector using a latch and a semiconductor device including the laser detector. A semiconductor device for a laser detector. Background technique [0003] As computer technology develops, hacking techniques for illegally accessing, compromising or damaging stored information continue to increase in complex environments. There are many different forms of hacking techniques. Many times, lasers are used in illegal processes. Therefore, laser detector circuits have been used as a mechanism for detecting whether a laser attack or hacking has occurred. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/55
CPCG06F21/55H01L2924/1434H01L31/02016H01L23/576G01J1/44G11C7/24H04L63/14G06F21/70G06K19/07363G06K7/10257H01L31/00H01L27/14
Inventor 金光镐金赏镐
Owner SAMSUNG ELECTRONICS CO LTD