in the implant refurbish business we used an elastomer for the platens. Under some conditions it turned hard, some other materials were indium. depends on who made the platen and when. contaminated- most likely not, although depends on the ion being spewed......just use gloves and do not breath the stuff. masks not necessary.
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On 2018-12-02 3:20 p.m., Chuck Harris wrote:
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:
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...
.
