%0 Patent %A Ashay A Dani %A Scott Gilbert %A Ajit Sathe V %A Ravi S Prasher %D 2007 %G eng %T Reworkable thermal interface material %U https://patents.google.com/patent/US7253523B2/en %8 08/2007 %X

A process of making a reworkable thermal interface material is described. The reworkable thermal interface material is bonded to a die and a heat sink. The reworkable thermal interface material includes a phase-change polymer matrix material. Other materials in the reworkable thermal interface material can include heat transfer particles and low melting-point metal particles. The phase-change polymer matrix material includes a melting temperature below a selected temperature and the heat transfer particles have a melting temperature substantially above the selected temperature. The heat transfer particles act as a spacer limit, which holds the thermal interface material to a given bond-line thickness during use.