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Atmospheric sensor, nfc device, package and manufacturing method

A sensor and sensing technology, applied in near-field communication devices, packaging of near-field communication devices, manufacturing such a sensor field, can solve the problems of cost-driven, preventing reliable monitoring, expensive sensors, etc.

Active Publication Date: 2012-11-21
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, exposure to atmospheric levels of the component of interest may lead to irreversible degradation of the sensor, thereby preventing reliable monitoring of the modified atmosphere in the package
However, avoiding this unwanted exposure requires fabricating sensors in a modified atmosphere, which typically requires complex fabrication techniques that can make the sensors too expensive to be commercially interesting due to the suitability of these sensors for integration in NFC devices. sex is largely cost-driven

Method used

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  • Atmospheric sensor, nfc device, package and manufacturing method
  • Atmospheric sensor, nfc device, package and manufacturing method
  • Atmospheric sensor, nfc device, package and manufacturing method

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Embodiment Construction

[0028] It should be understood that the drawings are only schematic and not drawn to scale. It should also be understood that the same reference numerals are used throughout the drawings to indicate the same or similar parts.

[0029] A sensor according to one embodiment of the invention is based on the principle that its sensing surface can be protected from excessive exposure to atmospheric components to be monitored, such as H, by providing a barrier layer. 2 O.CO 2 , ethylene, NH 3 etc., the barrier layer has a molecular or material orientation that can be changed, thereby changing the diffusion constant of the component of interest through the barrier layer, ie changing the permeability of the barrier layer.

[0030] In other words, the barrier layer can switch between two material configurations, layer orientations, where the molecules defining the layers typically have different shapes (conformations), which dictate different macroscopic layer properties. The first c...

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Abstract

Disclosed is a sensor for detecting a component (20) of an atmosphere, the sensor compri sing a sensing surface (14, 16) covered by a barrier layer (18) of a material switchable between respective layer orientations that have permeability to the component. A NFC device comprising such a sensor, a package incorporating the NFC device and a method of manufacturing the sensor are also disclosed.

Description

technical field [0001] The invention relates to a sensor for detecting a component of the atmosphere, said sensor comprising a sensing surface. [0002] The invention also relates to a Near Field Communication (NFC) device comprising such a sensor. [0003] The invention also relates to a package comprising such a near field communication device. [0004] The invention even relates to a method of manufacturing such a sensor. Background technique [0005] Many articles, especially food products, are now stored in modified atmosphere packaging where the environment is significantly altered from normal atmospheric conditions in order to prolong the durability of the article. These modified atmospheres typically contain reduced levels of CO 2 and O 2 , thereby delaying the microbial degradation of the product. [0006] In order to monitor the quality of an article such as food in a package, a sensor connected to an NFC device such as a radio frequency identification (RFID) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00G01N27/22
CPCG01N27/227G01N27/414G01N27/221
Inventor 奥瑞利·休伯特德克·格雷夫施泰因皮特·特尼斯森科内利斯·巴斯蒂安森
Owner NXP BV