Robert Hall

Summary
Full Description

Robert N. Hall, scientist at the General Electric Research Laboratory, developed a new method of growing silicon crystals for transistors. With his 'meltback' process, transistors will have greatly improved frequency range as indicated on the blackboard in the background and will be useful in television, radar, shortwave radio, and other electronic devices where high-frequency requirements have previously called for bulkier vacuum tubes. Dr. Hall is shown holding one of the transistors. The tiny silicon crystal, barely discernible at the top junction of the wires above the supporting element, contains a center layer of material only 1/5000th of an inch thick., Credit Line: General Electric Research and Development Center, courtesy AIP Emilio Segrè Visual Archives

Abstract/Description:	Robert N. Hall, scientist at the General Electric Research Laboratory, developed a new method of growing silicon crystals for transistors. With his 'meltback' process, transistors will have greatly improved frequency range as indicated on the blackboard in the background and will be useful in television, radar, shortwave radio, and other electronic devices where high-frequency requirements have previously called for bulkier vacuum tubes. Dr. Hall is shown holding one of the transistors. The tiny silicon crystal, barely discernible at the top junction of the wires above the supporting element, contains a center layer of material only 1/5000th of an inch thick.
Subject(s):	Eyeglasses Blackboards Diagrams Crystals Transistors Signal theory (Telecommunication) Vacuum-tubes Portraits Hall, Robert Noel,1919-
Credit Line:	General Electric Research and Development Center, courtesy AIP Emilio Segrè Visual Archives
Catalog ID:	Hall Robert Noel B1

Title:	Robert Hall.
Type of Resource:	still image
Extent:	1 photographic print (black and white; 10 x 8 inches)
Abstract/Description:	Robert N. Hall, scientist at the General Electric Research Laboratory, developed a new method of growing silicon crystals for transistors. With his 'meltback' process, transistors will have greatly improved frequency range as indicated on the blackboard in the background and will be useful in television, radar, shortwave radio, and other electronic devices where high-frequency requirements have previously called for bulkier vacuum tubes. Dr. Hall is shown holding one of the transistors. The tiny silicon crystal, barely discernible at the top junction of the wires above the supporting element, contains a center layer of material only 1/5000th of an inch thick.
Identifier(s):	Hall Robert Noel B1 (Catalog ID)
Note(s):	Credit Line: General Electric Research and Development Center, courtesy AIP Emilio Segrè Visual Archives
Subject(s):	Eyeglasses Blackboards Diagrams Crystals Transistors Signal theory (Telecommunication) Vacuum-tubes Portraits Hall, Robert Noel,1919-
Held by:	Niels Bohr Library & Archives
Copyright Holder:	General Electric Global Research
Restrictions on Access:	NBLA may be able to provide copyright contact information. Please contact us.
Related Title:	Emilio Segrè Visual Archives General Collection. https://libserv.aip.org/ipac20/ipac.jsp?uri=full=3100006~!4022~!0&ri=3&menu=search&source=~!horizon
In Collections:	Emilio Segrè Visual Archives General Collection