| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printed circuit board which can easily absorb various frequencies, can be easily applied since there is no antenna effect, and can be economically manufactured on a mass production basis, and to provide an electronic product. <P>SOLUTION: A printed circuit board comprises a first substrate on which electronic components are mounted, and a second substrate which is located on an upper part of the first substrate, covers at least part of the upper surface of the first substrate, and in which EBG structure is inserted so as to shield noise radiated in the upper direction from the first substrate. <P>COPYRIGHT: (C)2012,JPO&INPIT |
