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"CHARGE PREPARATION TECHNICIAN"
Job Description and Jobs

Job Description:

  • 1) Prepares ampoule containing charge to grow gallium arsenide crystal ingot in crystal growing furnace: Cleans ampoules, plugs, and boats, using etch tanks and sandblasting equipment.

  • 2) Operates saw to cut remelt into sections of specified size.

  • 3) Immerses remelt into etch tank to remove contaminants, and dries remelt in oven.

  • 4) 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.

  • 5) Attaches ampoule to diffusion pump to remove air from ampoule, and seals ampoule, using blowtorch.

  • 6) Transports sealed ampoule to holding rack in furnace room for further processing by CRYSTAL GROWER.

  • 7) Records production information.

 

 

 


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End Of Job Description for: "CHARGE PREPARATION TECHNICIAN"
DOT:   590.384-010

Job Number: 1702