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Memory card with communication function included

A communication function and memory card technology, applied in the field of memory cards, can solve the problems of hindering the magnetic flux of the chip antenna coil and the deterioration of the radio wave intensity.

Active Publication Date: 2019-09-13
株式会社PANGEA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, circuit components and circuit patterns are formed on this substrate, and these interfere with the magnetic flux from the coil in the chip antenna, and there is a possibility that the strength of radio waves may significantly deteriorate depending on the direction in which the mobile phone or smartphone is swung.

Method used

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  • Memory card with communication function included
  • Memory card with communication function included
  • Memory card with communication function included

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0030] Figure 1A is a layout diagram of the first mounting surface 2 of the substrate 1 in the memory card of the first embodiment, Figure 1B It is a layout view of the second mounting surface 3 on the opposite side to the first mounting surface 2 . Figure 1B It is a layout diagram of the memory card seen from the front side. Figure 1A and Figure 1B The memory card is, for example, an SD (secure digital, secure digital) card.

[0031] Such as Figure 1A As shown, the memory card includes a substrate 1 having a first mounting surface 2 and a second mounting surface 3 opposite to the first mounting surface 2 . Hereinafter, the first mounting surface 2 of the substrate 1 is also referred to as the front surface, and the second mounting surface 3 is also referred to as the rear surface.

[0032] A memory chip 4 and a chip antenna 5 are mounted on a substrate 1 . In addition, a circuit pattern 6 and various circuit components are arranged on the substrate 1 . The circuit p...

no. 2 approach

[0056] The second embodiment is to arrange the memory chip 4 and the chip antenna 5 in an overlapping manner.

[0057] Figure 7 It is a layout diagram of the first mounting surface 2 of the substrate 1 in the memory card 31 of the second embodiment. Layout diagram of the second mounting surface 3 with Figure 1B roughly the same, so omitted.

[0058] Figure 7 The memory chip 4 mounted on the first mounting surface 2 is larger than the memory chip 4 of the first embodiment, and is arranged across the first region 7 and the third region 9 of the first mounting surface 2 . The package of the memory chip 4 is formed of a resin member such as epoxy resin, and the magnetic flux from the coil 21 in the chip antenna 5 passes through the package. Wherein, conductive components such as pins and circuit patterns 6 are provided inside the memory chip 4 . These conductive members obstruct the magnetic flux, so the conductive members in the memory chip 4 are not arranged in the third...

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PUM

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Abstract

A memory card provided with a communication function has a substrate having a first mounting surface and a second mounting surface on a side opposite to the first mounting surface, a memory chip mounted on the first mounting surface or the second mounting surface, a proximity wireless communication circuit on the first mounting surface or the second mounting surface, a circuit pattern which is disposed on at least one of a first area of the first mounting surface and a second area of the second mounting surface located opposite to the first area, the substrate being between the first area and the second area, and which is connected with the memory chip and the proximity wireless communication circuit, and a chip antenna mounted on a third area of the first mounting surface or a fourth area of the second mounting surface.

Description

[0001] [Related applications] [0002] This application enjoys the priority of the basic application based on U.S. Provisional Patent Application No. 62 / 215,970 (filing date: September 9, 2015). This application includes the entire content of the basic application by referring to this basic application. technical field [0003] Embodiments of the present invention relate to a memory card including a communication function. Background technique [0004] Recently, high-function mobile phones or smartphones including near-wireless communication functions have become popular, but on the other hand, there is an increasing demand for low-cost mobile phones or smartphones with minimum functions. [0005] Such low-priced and low-function mobile phones or smartphones often do not include a proximity wireless communication function, but can perform proximity wireless communication by inserting a memory card having a proximity wireless communication function into a card slot. [0006...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077
Inventor 远藤重人
Owner 株式会社PANGEA