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Semiconductor memory module having built-in antenna

A memory module and antenna module technology, applied in semiconductor devices, semiconductor/solid-state device parts, antennas, etc., can solve the problem of not being able to fully ensure the length of the antenna, and achieve the effect of large capacity

Inactive Publication Date: 2008-01-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a configuration can be used in the case of using the 2.4GHz frequency band disclosed in this example, but the sufficient antenna length cannot be ensured in the case of the 13.56MHz frequency band, etc.

Method used

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  • Semiconductor memory module having built-in antenna
  • Semiconductor memory module having built-in antenna
  • Semiconductor memory module having built-in antenna

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0090] FIG. 1 is a cross-sectional view of an SD memory card 10 according to a first embodiment of the present invention. 2 is a cross-sectional view of the mounting module 12 which is one of the main parts, and FIG. 3 is a cross-sectional view of the antenna module 24 which is also one of the main parts. The SD memory card of this embodiment has a contact connection function and a non-contact information transmission function.

[0091] As shown in FIG. 1 , in the SD memory card 10 of this embodiment, the mounting module 12 and the antenna module 24 are superimposed, and the antenna connection terminal electrode (hereinafter referred to as the antenna connection terminal) 22 and the antenna terminal electrode 38 are joined, and the These are housed in the exterior case 42 . In addition, the connection terminal 20 formed on the wiring board 14 of the mounting module 12 is exposed from the surface of the exterior case 42, and this connection terminal 20 is a terminal for connec...

no. 2 Embodiment approach

[0103] FIG. 5 is a cross-sectional view of an SD memory card 46 according to a second embodiment of the present invention. As shown in FIG. 5 , the SD memory card 46 of this embodiment is characterized in that the configuration of the antenna module 48 is different from that of the SD memory card 10 of the first embodiment.

[0104] That is, in the SD memory card 46 of this embodiment, the antenna module 48 has a structure in which the first antenna module 80 and the second antenna module 82 are laminated. FIG. 6 is a schematic cross-sectional view showing the configuration of the antenna module 48 of the present embodiment. 7A is a schematic perspective view of the antenna module 48, and FIG. 7B is a schematic plan view of the antenna module viewed from the first antenna module 80 side. In addition, in FIGS. 7A and 7B , the insulating protection layer 54 and the magnetic layer 55 formed on the first antenna 52 of the first antenna module 80 are omitted for ease of understand...

no. 3 Embodiment approach

[0132] FIG. 10 is a cross-sectional view illustrating the structure of an SD memory card 180 according to a third embodiment of the present invention. The SD memory card 180 of this embodiment is characterized in that the first antenna module 202 and the second antenna module 204 constituting the antenna module 206 are respectively connected to the antenna connection terminal 2201 of the wiring board 1401 .

[0133] A semiconductor memory element 16 and a control semiconductor element 18 are mounted on one surface of a wiring board 1401 of the mounted module 1201, and a connection terminal 20 is formed at one end of the other surface. Furthermore, an antenna connection terminal 2201 for connecting to the respective antenna terminal electrodes 185 and 198 of the first antenna module 202 and the second antenna module 204 is provided at the other end portion of the other surface.

[0134] FIG. 11 is a schematic plan view of the antenna module 206 viewed from the first antenna mod...

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PUM

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Abstract

A semiconductor memory module formed of a mounted module (12) having a semiconductor memory device (16) and a control semiconductor device (18), a circuit board (14) which contains connection terminal (20) coupled with the control semiconductor device (18) and disposed so that it is exposed from the surface of outer case (42), and an antenna connection terminal electrode (22) disposed in the inside of outer case (42); and an antenna module (24) having a sheet board (26) which includes an antenna (28) disposed on one of the surfaces in the neighborhood of the edge along the sides, a layer (30) of magnetic substance disposed on the other surface, and an antenna terminal electrode (38) disposed on the one or the other surface. The antenna module (24) is overlaid on the mounted module (12), and the antenna connection terminal electrode (22) is connected with the antenna terminal electrode (38).

Description

technical field [0001] The present invention relates to a semiconductor memory module with an antenna built in, such as a SD (Secure Digital) memory card used as a memory card. Background technique [0002] In recent years, various large-capacity memory cards are becoming popular, and are widely used in portable digital devices such as digital cameras, walkmans, and portable information terminals. For these memory cards, in order to further broaden their range of applications, it is desired to add a wireless communication function. [0003] As a response to such a demand, for example, Japanese Patent Application Laid-Open No. 2001-195553 proposes a configuration in which a wireless interface function is added to an SD memory card. [0004] FIG. 23 is a structural diagram shown in the above publication, and FIG. 24 is a perspective view of its appearance. The SD memory card 1410 has a wireless control unit 1430 in addition to a storage unit as a main function storage medium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/077G06K19/07H01Q1/38H01Q1/52H01Q7/02
CPCH01L2223/6677H01L25/162H01L2224/16227H01Q1/2275H01L23/49855H01Q1/38H01L25/0652H01Q7/00H01L2224/16225H01L2924/19105H01L2224/73253H01L2924/15331
Inventor 越智正三冢原法人王生和宏西川英信平野正人
Owner PANASONIC CORP
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