Patent ID: 9101072
Filing Date: 2015-08-04
Classification: H01F,H05K,Y10T

Abstract:
1. A method of embedding a magnetic component in a substrate, the method comprising: forming two holes spaced at a predetermined distance in a substrate by a first removing technique, wherein each of the two holes has a top opening, a bottom and a sidewall, and an area of the top opening of each of the two holes is larger than that of the bottom thereof, and the sidewall extends downwards a predetermined depth from the top opening, and then is slanted inwardly to the bottom, thereby forming a sloped sidewall at the bottom of each of the two holes; removing completely a portion of the substrate between the two holes to connect the two holes to each other as a component accommodation trench by a second removing technique such that a portion of the sidewall and a portion of the sloped sidewall of each of the two holes is reserved to be treated as a portion of the component accommodation trench; and placing a magnetic component into the component accommodation trench; wherein a removing rate of the second removing technique is greater than that of the first removing technique.