Printed circuit board, secure digital card and method for manufacturing printed circuit board
A printed circuit board and safe digital technology, applied in the electronic field, can solve the problems of inconvenient portability, large size, and difficulty in realizing SD card integration, etc., and achieve the effect of convenient portability and convenient information transmission
Active Publication Date: 2013-07-10
HUAWEI DEVICE CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] In the process of realizing the present invention, the inventor found that the size of the existing 3G communication module is too large, it is inconvenient to carry, and it is difficult to realize the integration with the SD card
Method used
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Embodiment Construction
[0023] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.
[0024] Such as figure 1 with figure 2 As shown, an embodiment of the present invention discloses a printed circuit board (PCB) of an SD card, including a secure digital input and output (Secure Digital Input & Output, SDIO) terminal 1 at one end of the PCB, and at the other end away from the SDIO terminal 1 An antenna 2 is arranged at one end, and a radio frequency circuit 3 is arranged in an area adjacent to the antenna 2 . In order to ensure the size requirements of the SD card, the height of the PCB is preferably 0.3~1mm after deducting the height of the chip and the plastic package. Of course, if the chip and the plastic package are thin enough, the thickness of the PCB can be bigger. In one embodiment, the memory module 4 is arranged in an area not adjacent to the antenna. In order to avoid the interference of the memory module 4 on the antenna...
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Abstract
The present invention provides a printed circuit board (PCB) for an easy-to-carry small-sized cellular network communication module. The circuit board comprises: a secure digital input / output (SDIO) terminal at one end of the PCB, an antenna disposed at the other end far away from the SDIO terminal, a radio frequency circuit disposed in an area adjacent to the antenna, and a storage module disposed in an area not adjacent to the antenna. The present invention also provides a secure digital card comprising the PCB. The present invention further provides a method for manufacturing an SD card-sized PCB, comprising: arranging an SDIO terminal at one end of the PCB; arranging an antenna at the other end far away from the SDIO terminal; and disposing a radio frequency circuit in an area adjacent to the antenna.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a secure digital card (Secure Digital Card, SD card) printed circuit board, a secure digital card and a method for manufacturing the printed circuit board. Background technique [0002] Secure Digital Card (SD card) is a very popular memory card. Because of its small size, fast transmission speed, and relatively low cost, it has become a common card for various electronic devices (such as digital cameras, tablet computers, and notebook computers). Extended memory card. According to the existing SD card specification, the size of the SD card is 24mm×32mm×2.1mm, and its internal printed circuit board (Printed Circuit Board, PCB) is relatively simple, usually stacked as follows: [0003] [0004] Existing third generation (3 rd Generation, 3G) mobile communication modules, such as MI modules, have a size of about 33mm×50mm. The PCB is usually made of FR4 material, with 6 o...
Claims
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IPC IPC(8): G06K19/077H05K1/18H05K3/00
CPCH05K1/18H05K3/00G06K19/077H05K3/4605H01Q1/22H05K2201/0154H05K2201/10098
Inventor 张玉辉赵龙李春澍
Owner HUAWEI DEVICE CO LTD