| 摘要 |
A card body comprises a first card body (ID-1 card 1 ), a second card body (plug-in card 2 ) and a third card body (mini card 3 ). The first card body has a first shape (ID-1 shape). The second card body comprises a second shape (plug-in shape). The first card body encompasses the second card body. The third card body comprises a third shape (mini shape). The second card body encompasses the third card body. The third card body has a cavity for receiving an electronic module. A first boundary separates the first shape (ID-1 shape) from the second shape (plug-in shape), and comprises a first number of apertures ( 5, 6, 7, 17, 18 ) and a first number of notches ( 19 and 20 ) defining a first mechanical inter-card body coupling strength (link between ID-1 card 1 and plug-in card 2 ). A second boundary separates the second shape (plug-in shape) from the third shape (mini shape), and comprises a second number of apertures ( 21 ) and a second number of notches ( 11, 12, 13, 14, 15, 16 ) defining a second mechanical inter-card body coupling strength (link between plug-in to card 2 and mini card 3 ). A cumulated length of the first number of apertures ( 5, 6, 7, 17, 18 ) is greater than a cumulated length of the second number of apertures ( 21 ) and a cumulated length of the first number of notches ( 19 and 20 ) is lesser than a cumulated length of the second number of notches ( 11, 12, 13, 14, 15, 16 ) so that the second mechanical coupling strength is greater than the first mechanical coupling strength.
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