MULTILAYER OHMIC CONTACTS ON CDS.

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Abstract:

A multilayer technique is proposed for evaporation of ohmic contacts onto CdS which does not change their electrical properties after heat treatment up to 350C. This technique consists of a sequential evaporation of a preparative layer, an active metal and possible a covering metal. The Ti preparative-A1 active-Pt cover sequence was found most successful. All of the more than forty evaporations investigated -on CdS single crystals, or on evaporated recrystallized layers- showed ohmic characteristics between 2 mV and 200 V and showed generation-recombination noise above at most 500 Hz. The electrical properties of the contacts did not markedly change after vacuum heat treatment up to 350C. Author

Author(s):
Boer, Karl W. ; Hall, Robert B.
Author Organization(s):
DELAWARE UNIV NEWARK DEPT OF PHYSICS
Descriptive Note:
Technical rept.
Supplementary Note:
Supported in part by NASA.
Pagination:
0022

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-10
Contract/Grant Number(s):
Nonr-4336(00)
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*SEMICONDUCTOR DEVICES, *ELECTRIC TERMINALS), (*CADMIUM COMPOUNDS, SULFIDES), CIRCUIT INTERCONNECTIONS, ELECTRODES, VAPOR PLATING, TITANIUM, ALUMINUM, PLATINUM, EVAPORATION, ELECTRICAL PROPERTIES, LAMINATES
Field(s)/Group(s):
Electrical and Electronic Equipment, Laminates and Composite Materials, Fabrication Metallurgy
Report Date:
1966 Jul 01