An electronic apparatus comprising: a printed circuit board (PCB) comprising a plurality of electronic components; a heat sink assembly coupled to the PCB ; and an elastically deformable coupling member which couples the heat sink assembly and the PCB , wherein the elastically deformable coupling member comprises a flexible metallic material, elastically couples the PCB and the heat sink assembly , is fixed to the PCB and a diameter of the elastically deformable coupling member is contractible by an external force; wherein a fixing portion forms an opening into which the elastically deformable coupling member is passed, wherein the opening has a diameter which is less than the diameter of the elastically deformable coupling member ; characterized in that : the heat sink assembly comprises the fixing portion that protrudes from a surface thereof, and wherein the elastically deformable coupling member is fixed to the fixing portion ; the fixing portion and the heat sink assembly define a space, and wherein the elastically deformable coupling member is inserted within the space; the opening is formed in a surface of the fixing portion ; and the elastically deformable coupling member is inserted into the space formed between the fixing portion and the heat sink assembly so as to elastically support the heat sink assembly . a printed circuit board (PCB) comprising a plurality of electronic components; a heat sink assembly coupled to the PCB ; and an elastically deformable coupling member which couples the heat sink assembly and the PCB , wherein the elastically deformable coupling member comprises a flexible metallic material, elastically couples the PCB and the heat sink assembly , is fixed to the PCB and a diameter of the elastically deformable coupling member is contractible by an external force; wherein a fixing portion forms an opening into which the elastically deformable coupling member is passed, wherein the opening has a diameter which is less than the diameter of the elastically deformable coupling member ; characterized in that : the heat sink assembly comprises the fixing portion that protrudes from a surface thereof, and wherein the elastically deformable coupling member is fixed to the fixing portion ; the fixing portion and the heat sink assembly define a space, and wherein the elastically deformable coupling member is inserted within the space; the opening is formed in a surface of the fixing portion ; and the elastically deformable coupling member is inserted into the space formed between the fixing portion and the heat sink assembly so as to elastically support the heat sink assembly . the heat sink assembly comprises the fixing portion that protrudes from a surface thereof, and wherein the elastically deformable coupling member is fixed to the fixing portion ; the fixing portion and the heat sink assembly define a space, and wherein the elastically deformable coupling member is inserted within the space; the opening is formed in a surface of the fixing portion ; and the elastically deformable coupling member is inserted into the space formed between the fixing portion and the heat sink assembly so as to elastically support the heat sink assembly . <EOS>