| Job Title |
Charge Preparation Technician |
| Job Description |
Prepares Ampoule Containing Charge (specified Amounts Of
Materials For Crystal Growing Process) To Grow Gallium Arsenide
Crystal Ingot In Crystal Growing Furnace: Cleans Ampoules,
Plugs, And Boats, Using Etch Tanks And Sandblasting Equipment.
Operates Saw To Cut Remelt Into Sections Of Specified Size.
Immerses Remelt Into Etch Tank To Remove Contaminants, And Dries
Remelt In Oven. Measures And Weighs Specified Amounts Of Crystal
Growing Material, Such As Seed, Seed Powder, Remelt, And Dopant,
And Loads Material Into Boat And Ampoule, Following Prescribed
Procedure. Attaches Ampoule To Diffusion Pump To Remove Air From
Ampoule, And Seals Ampoule, Using Blowtorch. Transports Sealed
Ampoule To Holding Rack In Furnace Room For Further Processing
By Crystal Grower (electron. Comp.) 590.382-014. Records
Production Information.
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