In some embodiments, the conductive bridge 304 comprises two sections. A first section 306, in some embodiments the first section 306 contains the same physical shape and characteristics of the conductive base (302 of FIG. 3A). A bottom surface of a second section 308 is in direct contact with a top surface of the first section 306. The bottom surface of the second section 308 has the same width as the top surface of the first section 306. A width of a top surface of the second section 308 is less than the width of the bottom surface of the second section 308. Sidewalls of the first section 306 are angled at a first non-zero angle θ relative to a line perpendicular to the top surface of the heat dispersion layer 108. Sidewalls of the second section 308 are angled at a second non-zero angle ? relative to a line perpendicular to the top surface of the heat dispersion layer 108. The first non-zero angle θ is a different angle than the second non-zero angle ?. In some embodiments, the first non-zero angle θ is greater than the second non-zero angle ?. In some embodiments, the second non-zero angle ? is within a range of 1 degree and 60 degrees. In some embodiments, the first non-zero angle θ is within a range of 1 degree and 60 degrees.