| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an SD/MMC type card satisfying an existing size standard and improving mounting density of components. <P>SOLUTION: In this PDA (SD/MMC) device and a PDA card, a base board for mounting PDA components has two tiers. Components with a high profile are mounted on the lower tier, and devices with normal or low heights are mounted on the upper tier. The upper tier is contained in the portion of the card conforming to, for example, the 1.4 mm SDA standard thickness, while the lower tier is formed in the portion of the card that allows a larger thickness, for example SDA standard thickness 2.1 mm. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
