Temperature-homogenizing device

An electronic device having a temperature-homogenizing device comprising:

• a housing;
• a plurality of electronic components disposed in said housing;
• and
• a temperature-homogenizing device, comprising:
• a first and a second higher thermally conductive layers, wherein said second higher thermally conductive layer is adjacent to said housing;
• and
• a first lower thermally conductive layer disposed between said first and said second higher thermally conductive layers, and made of a material or a medium having a lower thermal conductivity than each of said first and said second higher thermally conductive layers, such that heat generated from said electronic components is homogeneously distributed throughout said first and said second higher thermally conductive layers at a higher thermal conduction rate and transferred through said first lower thermally conductive layer at a lower thermal conduction rate so as to uniformly transfer said heat to said housing and maintain homogeneous temperature distribution on said housing.