A chip, comprising: a base, wherein a through hole penetrating through the base is provided in the base, and a conductive column is provided in the through hole; a first surface of the base is provided with a first annular groove which surrounds the conductive column; and a first isolator is provided in the first annular groove, and a first air gap extending along a circumferential direction of the first annular groove is formed in the first isolator; wherein the first surface of the base is further provided with a second annular groove and a third annular groove; the second annular groove is provided around outside of the first annular groove, and a second isolator is filled in the second annular groove; and the third annular groove is provided around outside of the second annular groove, and a third isolator is filled in the third annular groove; wherein the first annular groove, the second annular groove, and the third annular groove are arranged at equal distances, or, a distance between the first annular groove and the second annular groove is greater than a distance between the second annular groove and the third annular groove; wherein a second air gap extending along a circumferential direction of the second annular groove is formed in the second isolator; and a third air gap extending along a circumferential direction of the third annular groove is formed in the third isolator; characterized in that, a width of the first annular groove is greater than a width of the second annular groove and a width of the third annular groove along a radial direction of the through hole; wherein when taking a plane perpendicular to a center line of the through hole as a cross section, the cross section of each of the first annular groove, the second annular groove and the third annular groove is in a shape of a regular polygon with eight or more sides. a first surface of the base is provided with a first annular groove which surrounds the conductive column; and a first isolator is provided in the first annular groove, and a first air gap extending along a circumferential direction of the first annular groove is formed in the first isolator; wherein the first surface of the base is further provided with a second annular groove and a third annular groove; the second annular groove is provided around outside of the first annular groove, and a second isolator is filled in the second annular groove; and the third annular groove is provided around outside of the second annular groove, and a third isolator is filled in the third annular groove; wherein the first annular groove, the second annular groove, and the third annular groove are arranged at equal distances, or, a distance between the first annular groove and the second annular groove is greater than a distance between the second annular groove and the third annular groove; wherein a second air gap extending along a circumferential direction of the second annular groove is formed in the second isolator; and a third air gap extending along a circumferential direction of the third annular groove is formed in the third isolator; characterized in that, a width of the first annular groove is greater than a width of the second annular groove and a width of the third annular groove along a radial direction of the through hole; wherein when taking a plane perpendicular to a center line of the through hole as a cross section, the cross section of each of the first annular groove, the second annular groove and the third annular groove is in a shape of a regular polygon with eight or more sides.