Patent ID: 7913748
Filing Date: 2011-03-29
Classification: F28D,H01L

Abstract:
1. A vapor chamber, comprising: a plate with an interior hollowed and having a chamber, the chamber being provided therein with working fluid, one surface of the plate being used as a heated end, the other opposite surface of the plate being used as a condensed end; and a wick structure adhered on inner wall surfaces of the chamber and comprising a first wick portion adhered to the plate opposite to the heated end, a second wick portion overlapping the entire first wick portion, and a third wick portion adhered on remaining inner wall surfaces of the chamber and not overlapping either the first wick portion or the second wick portion, the third wick portion being opposite to the condensed end being separated from the second wick portion by the chamber; wherein an aperture diameter of the first wick portion is larger than that of the second wick portion.