Thermal interface materials including polymeric phase-change materials
In an embodiment, an article of manufacture includes a first component, a second component, and a thermal interface material. The thermal interface material is disposed between the first component and the second component and includes a polymeric phase-change material. In another embodiment, an article of manufacture includes a first component, a second component, and a thermal interface material disposed between the first component and the second component, the thermal interface material including a polymeric phase-change material, the polymeric phase-change material including a block copolymer formed from a diene, the diene formed from a vinyl-terminated fatty acid monomer having a chemical formula C 2 H 4 —R—C(O)OH and an ethylene glycol monomer having a chemical formula C 2n H 4n+2 O n+1 .
1. An article of manufacture, comprising:
a first component;
a second component; and
a thermal interface material disposed between the first component and the second component, the thermal interface material comprising a polymeric phase-change material comprising a block copolymer formed from a diene, the diene formed from a vinyl-terminated fatty acid monomer and an ethylene glycol monomer.
2. The article of manufacture of claim 1 , wherein the first component comprises a semiconductor die.
3. The article of manufacture of claim 1 , wherein the second component comprises a heat sink.
4. The article of manufacture of claim 1 , wherein:
the vinyl-terminated fatty acid monomer has a chemical formula C 2 H 4 —R—C(O)OH;
the ethylene glycol monomer has a chemical formula C 2n H 4n+2 O n+1 ;
R corresponds to a chain length (x) of at least 8 carbon atoms between a terminal vinyl group and a carbonyl group; and
n is greater than or equal to 1.
5. The article of manufacture of claim 4 , wherein the ethylene glycol monomer comprises ethylene glycol.
6. The article of manufacture of claim 4 , wherein n is 2 or more.
7. The article of manufacture of claim 6 , wherein the ethylene glycol monomer comprises tetraethylene glycol.
8. The article of manufacture of claim 4 , wherein the thermal interface material has a structure represented by:
wherein x is at least 8 carbon atoms and n is greater than or equal to 1.
9. The article of manufacture of claim 1 , wherein the polymeric phase-change material has a melting transition temperature (T m ) in a range of 0° C. to 100° C.
10. The article of manufacture of claim 1 , wherein the polymeric phase-change material has a melting enthalpy in a range of 200 J/g to 400 J/g.
11. The article of manufacture of claim 1 , wherein the polymeric phase-change material has a thermal stability parameter (T d ) of 5% mass loss at a temperature that is in a range of 250° C. to 450° C.
12. The article of manufacture of claim 1 , wherein the polymeric phase-change material has a melting transition temperature (T m ) in a range of 0° C. to 100° C., a melting enthalpy in a range of 200 J/g to 400 J/g, and a thermal stability parameter (T d ) of 5% mass loss at a temperature that is in a range of 250° C. to 450° C.
13. An article of manufacture, comprising:
a first component;
a second component; and
a thermal interface material disposed between the first component and the second component, the thermal interface material comprising a polymeric phase-change material, the polymeric phase-change material comprising a block copolymer formed from a diene, the diene formed from a vinyl-terminated fatty acid monomer having a chemical formula C 2 H 4 —R—C(O)OH and an ethylene glycol monomer having a chemical formula C 2n H 4n+2 O n+1 , wherein:
R corresponds to a chain length (x) of at least 8 carbon atoms between a terminal vinyl group and a carbonyl group; and
n is greater than 2.
14. The article of manufacture of claim 13 , wherein the thermal interface material has a structure represented by:
wherein x is at least 8 carbon atoms and n is greater than 2.
15. The article of manufacture of claim 13 , wherein n is equal to 4.
16. The article of manufacture of claim 13 , wherein the ethylene glycol monomer comprises tetraethylene glycol.
17. The article of manufacture of claim 13 , wherein:
the first component comprises a semiconductor die; and
the second component comprises a heat sink.
18. The article of manufacture of claim 13 , wherein the polymeric phase-change material has one or more of:
a melting transition temperature (T m ) in a range of 0° C. to 100° C.,
a melting enthalpy in a range of 200 J/g to 400 J/g, or
a thermal stability parameter (T d ) of 5% mass loss at a temperature that is in a range of 250° C. to 450° C.
19. An article of manufacture, comprising:
a first component;
a second component; and
a thermal interface material disposed between the first component and the second component, the thermal interface material comprising a polymeric phase-change material, the polymeric phase-change material comprising a block copolymer formed from a diene, the diene formed from a vinyl-terminated fatty acid monomer having a chemical formula C 2 H 4 —R—C(O)OH and an ethylene glycol monomer having a chemical formula C 2n H 4n+2 O n+1 , wherein:
the polymeric phase-change material has one or more of a melting transition temperature (T m ) in a range of 0° C. to 100° C., a melting enthalpy in a range of 200 J/g to 400 J/g, or a thermal stability parameter (T d ) of 5% mass loss at a temperature that is in a range of 250° C. to 450° C.;
R corresponds to a chain length (x) of at least 8 carbon atoms between a terminal vinyl group and a carbonyl group; and
n is greater than or equal to 1.
20. The article of manufacture of claim 19 , wherein:
the first component comprises a semiconductor die; and
the second component includes a heat sink.