Why do you think it is metal? Is it shiny in a way
that doesn't show in the pictures?
If it is the black stuff, looks like epoxy.
If it is the white stuff, looks like silicone heat
sink compound.
-Chuck Harris
John Griessen wrote:
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It's parts of a plasma etcher that are in the high vacuum area. The ceramic plate
had wafer lifting pins and was bonded
to a thick aluminum plate with low temp metal brazing.
I can gouge it easily at a temperature of 60 deg F and the tool feels sticky. A push
and twist captures the tool and holds its
cantilevered weight.
Could this be Woods metal? Gallium? Toxic Mercury Cadmium Lead amalgam?
I am thinking it must have been stable in vacuum with some warm temperatures when the
etcher was running...
