Memory device and electronic device including the same
摘要
說(shuō)明書(shū)
In an embodiment, the positions of each of the module fastening holes MH1 to may be designed such that distances spaced in the first direction X and the distances spaced in the second direction Y are equal to each other on the basis of the corners of each corner parts CNR1 to CNR4 to provide efficient coupling force. In such an embodiment, if each corner of the module board BDH is located at the apex of one rectangle, a figure obtained by connecting each of the module fastening holes MH1 to MH4 defines a rectangle.
In another embodiment, each of the module fastening holes MH1 to MH4 may be re-located from the above-mentioned positions depending on the wiring design of the module board BDH, the chip arrangement, the position of the memory connector MCN, and the like. For example, as shown in the drawing, when the memory connector MCN is placed on the first short side SS1 to be generally biased to the second long side LS2 further than the first long side LS1, the fourth module fastening hole MH3 placed at the fourth corner CNR4 may be further spaced apart from the first short side SS1 in the first direction X than the first module fastening hole MH1 placed at the first corner CNR1. In this case, a straight line which connects the first module fastening hole MH1 and the fourth module fastening hole MH3 may be inclined at a first angle θ1 with respect to the second direction Y.
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