David E. Antkowiak wrote:

Dear Mr. Lassen:

The term "GyroChip" refers to a family of quartz rate sensors manufactured by
Systron Donner Inertial Division - SDID (all of SDID sensors share the same
technology; i.e., quartz not silicone).

Anyone who doesn't know the difference between silicon, a semiconductor
material (when properly doped), and silicone, a plasticizer, or who does not
know that quartz is silicon dioxide (SiO2) should not be selling electronic
components.  [Alternative: if Donner *really* thinks that their competition
makes solid state gyros out of silicone, then perhaps they need to sharpen
their competition research.]

Russell Kent

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