Graduate Thesis Or Dissertation
 

A low power zone-refining system for semiconductor materials

Public Deposited

Contenu téléchargeable

Télécharger le fichier PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/3j3336141

Descriptions

Attribute NameValues
Creator
Abstract
  • This paper presents an investigation of the power needs and impedance-matching techniques involved when heating small charges of relatively high-resistivity semiconductor materials. Topics of discussion also include a brief section on the theoretical basis for zone refining, relative merits of resistance and induction heating, travel mechanism requirements, and work coil design. Considerable emphasis is placed on the efficiency of coupling between the induction heater and the load. Different methods of coupling the power into loads of silicon and germanium are indicated. The discussion on coupling centers around two work coil designs, a single-turn coil and impedance-matching transformer, and a five-turn coil, which is connected in series with the tank-circuit coil. An induction heater capable of delivering 4 kw output power was found sufficient for melting a zone 2 cm long in a 1.5 cm diameter ingot. The system developed is capable of zone refining, zone leveling, or crystal growing with either silicon or germanium.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Déclaration de droits
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces

Des relations

Parents:

This work has no parents.

Dans Collection:

Articles

La vignette Titre Date de téléchargement Visibilité actes
file details ChristensenGerald1964.pdf 2017-08-22 Public Télécharger