Vapor chamber and manufacturing method for the same

A method of manufacturing a vapor chamber, having a working substance therein, comprising:

• Step (910):
• forming an upper casing having a first surface and an opposite second surface having an upper heat exchange chamber area therein surrounded by walls having a flat rim and forming a lower casing having a first surface and an opposite second surface having a lower heat exchange chamber area therein surrounded by walls having a flat rim, and forming a wick structure, wherein forming the upper casing further comprises arranging and forming multiple upper surface features separated by multiple upper vapor areas in the upper heat exchange chamber area, and wherein forming the lower casing further comprises arranging and forming multiple lower surface features separated by multiple lower vapor areas in the lower heat exchange chamber area;
• Step (920):
• assembling the upper casing, the wick structure, and the lower casing together;
• Step (930):
• partially sealing the surrounded walls having flat rims of the upper and lower heat exchange chamber areas;
• Step (940):
• inserting a working substance into the lower casing and the wick structure and pumping away air from the multiple upper and lower vapor areas;
• and
• Step (950):
• completely sealing the upper casing with the lower casing,
• wherein the upper and lower heat exchange chamber areas form a chamber having the wick structure disposed therebetween and the working substance therein and an airtight sealed connection is formed at the flat rims of the surrounding walls of the upper and lower heat exchange chamber areas.