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The disclosed method is a test station used to measure the properties of a Thermal Interface Material (TIM). Benefits include outstanding measurement precision and a large testing temperature range.
English (United States)
This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
66% of the total text.
High Performance Thermal Interface
The disclosed method is a test station used to measure the
properties of a Thermal Interface Material (TIM). Benefits include outstanding
measurement precision and a large testing temperature range.
Currently, a single-position fixture and custom copper
blocks are used to contain the TIM and conduct heat across it (see Figure 1).
The limitations of the current state of the art are as follows:
thermal resolution, pressure, and programmability.
cost and low thru-put time.
of the tester to characterize different classes of TIM technology such as
Gels, Solders, and Polymer-Solder Hybrids.
All of the
mechanical components of the disclosed method have preformed as expected and
without permanent deformation during all testing to date (~100 tests run so
far).� Figure 2 shows the central
portion of the disclosed method fully assembled during a test. All of the main
mechanical components (i.e., cooling block, heating block, block bolts) were
analyzed to ensure that they would not deform during operation (see Figure 3).
Safety factors for all components were well over 1 (min=1.7). The predicted
stress for the cooling block (56 MPa) was well below the aluminum yield point
The following are the primary components of the disclosed
Frame – used to apply a controlled pressure to the test specimen.
Side Assembly – used to apply a controlled heating to the te...