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Smart card and smart card reader

A card reader and smart card technology, applied in the field of smart cards, can solve the problems of high price and cost-effectiveness

Inactive Publication Date: 2008-05-21
IMPACT COATINGS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the downside of gold is its high price
Therefore, there is still a need for a coating for smart cards and smart card readers which ensures abrasion resistance as well as good electrical contact, but which is more cost effective

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0037] The smart card 1 in FIG. 1 has a chip 2 with a contact surface 3 coated with a contact layer of a multi-element material having the general formula M n+1 AX n Compositions are given as well as those containing the corresponding M n+1 AX n Nanocomposites 4 of single elements, binary phases, ternary phases, quaternary phases or higher order phases of the atomic elements in the compound (see Figure 2). Even if the multi-element is based on the formula M n+1 AX n For a given composition, the proportions of the different elements can be varied so that M n+1 and x n From 1 / 10 up to twice the ratio determined by the general formula. As an example, the composition may be M 0.2 AX, M 0.2 AX 0.1 , M 4 AX or M 2 AX 2 , therefore, conforms to the more general formula M q Ay x z , where q, y, and z are numbers greater than zero.

[0038] FIG. 3 shows a card reader 7 for reading the smart card 1 in FIG. 1 . The card reader 7 has a slot 8 into which the smart card 1 is...

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Abstract

A smart card (1) having a card contact element (2) for establishing electrical contact with a reader contact element of a smart card reader for reading the smart card, said card contact element (2) having coated contacts A contact surface (3) of the layer, said contact surface (3) being arranged in contact with a card reader contact element. The contact layer comprises a multi-element material having a composition of at least one carbide or nitride described by the formula MqAyXz, wherein M is a transition metal or a combination of transition metals, A is a group A element or a combination of group A elements, X is carbon or nitrogen or both, and q, y and z are numbers greater than zero. Multi-element materials also include at least one nanocomposite material containing a single element, a binary phase, a ternary phase, a quaternary phase or a higher order phase based on the atomic elements in the corresponding MqAyXz compound. A card reader for reading a smart card (1) is also disclosed.

Description

technical field [0001] The invention relates to a smart card having a card contact element for establishing electrical contact with a reader contact element of a smart card reader for reading a smart card, said card contact element having a contact surface coated with a contact layer, so that The contact surface is arranged to contact the card reader contact element, wherein the contact layer comprises a multi-element material. [0002] The invention also relates to a card reader for reading a smart card, said card reader having a card reader contact element for establishing electrical contact with a card contact element on a smart card, said card reader contact element having a coated contact layer A contact surface is provided for contacting the card contact element, wherein the contact layer comprises a multi-element material. Background technique [0003] Today, smart cards are used in many applications, and their use is expanding day by day. One use is in subscriber i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/03C23C30/00
CPCG06K7/0021H01R13/22C23C30/00H01R13/03G06K19/07743
Inventor 亨里克·荣格克兰茨
Owner IMPACT COATINGS AB
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