Considerations for space and Naval aircraft applications of ferroelectric memory

86 Pages·1.1 MB·en_US

by  Vetter, Theodore Arnold.;Panholzer, Rudolf.

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NavalPostgraduateSchool (Ifapplicable) NavalPostgraduateSchool
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6c.ADDRESS(City,State,andZIPCode) 7b.ADDRESS(City,State,andZIPCode)
Monterey,CA 93943-5000 Monterey,CA 93943-5000
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PROPOSEDSPACEANDNAVALAVIATIONAPPLICATIONSOFFERROELECTRICMEMORY UNCLASSIFIED)
(
12.PERSONALAUTHOR(S) LtTheodoreArnoldVetter
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Master'sThesis From To 1992,December 79
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TheviewsexpressedinthisthesisarethoseoftheauthoranddonotreflecttheofficialpolicyorpositionoftheDepartmentofDefenseortheU.S.
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17.COSATICODES 18.SUBJECTTERMS(continueonreverseifnecessaryandidentifybyblocknumber)
FIELD GROUP SUBGROUP ferroelectric,nonvolatilememory,spacecraftmemory,aircraftmemory,memoryapplicaitons
19.ABSTRACT(continueonreverseifnecessaryandidentifybyblocknumber)
ThepurposeofthisthesisintointroducethereadertoFerroelectricmemoryanddiscussconsiderationsforpossiblespaceandNavalaviation
applications.Ferroelectricmemory'scharacteristicsandbasicmechanismarediscussed.Abroadspectrumofexistingcomputermemory
typesarepresentedforcomparison.ThememoryrequirementsofSpaceShuttle,Landsat,IntelsatVIandHubbleSpaceTelescopeaswellas
theNavyE-2HawkeyeandEA-6BProwleraircraftaregivenaspossibleexamplesofspaceandNavalaviationapplicationsofferroelectric
memory.
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R.Panholzer 408-656-2154
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CONSIDERATIONS FOR SPACE AND NAVAL AIRCRAFT
APPLICATIONS OF FERROELECTRIC MEMORY
by
THEODORE yETTER
A.
Lieutenant, United.States Navy
B.S., Southern Oregon State College, 1984
Submittedin partial fulfillment
ofthe requirements for the degree of
MASTER OF SCIENCE IN SYSTEMSTECHNOLOGY,
SPACE SYSTEMS OPERATIONS
from the
NAVALPOSTGRADUATE SCHOOL
December 1992
ABSTRACT
The purpose ofthis thesis is to introduce the reader to Ferroelectric memory
and discuss considerations for possible space and Naval aviation applications.
A
Ferroelectric memory's characteristics and basic mechanism are discussed.
broad spectrum of existing computer memory types are presented for comparison.
The memory requirements ofSpace Shuttle, Landsat, Intelsat V and Hubble Space
telescope as well as the Navy E-2 Hawkeye and EA-6B Prowler aircraft are given
as examples of possible space and Naval aviation applications of ferroelectric
memory.
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TABLE OF CONTENTS
INTRODUCTION
I. 1
A. PRINCIPLES OF FERROELECTRIC MEMORY
1
General Description
1 1
2. Perovskite Unit Cell Structure and Binary Data 2
FEM
3 Graphical Description of Binary Data Storage 4
a. Polarization vs Electric Field 4
b. Positive Saturation Polarization (+Psat) 5
c. Positive Remnant Polarization (+Pr) 5
d. Negative Saturation Polarization (-P 6
sat)
e. Negative Remnant Polarization (-Pr) 6
DESIRABLE CHARACTERISTICS OF FERROELECTRIC
B.
MEMORY
7
1. Non-Volatility
2. Insensitivity to Magnetic Field 7
3. Radiation Hardness 8
a. Environmental Radiation 10
b. Nuclear Blast Radiation 11
IV
.
4. High density semiconductor 12
a. No Moving Parts 12
b. High density 12
5. Low Power 12
6. High Speed 13
7. Compatibility 13
UNDESIRABLE FEM CHARACTERISTICS
C. 13
1. Fatigue 13
2. Destructive Read Out (DRO) 15
D. COSTS 16
CURRENT MEMORY FORMS
II. 17
A. OVERVIEW IN GENERAL 17
MAGNETIC MEMORIES
B. 18
Magnetic Core Memory 18
1
2. Magnetic Tape 19
3. Magnetic floppy disk 19
4. Magnetic hard disk 20
C. SEMICONDUCTOR MEMORIES 22
Programmable Read Only Memory (PROM) 22
1.
.
2. Erasable Programmable Read-Only Memory (EPROM) .... 22
3. Electrically Erasable Programmable Read-Only Memory
(EEPROM) 22
4. Dynamic Random Access Memory (DRAM) 23
5. Static Random Access Memory (SRAM) 24
6. Flash EEPROM Memory 25
D. OPTICAL MEMORIES 26
1 Optical Read / Write Disk 26
2. CD Read Only Memory (CD ROM) 27
3. Holographic Memory 28
in. FEM CHARACTERISTICS RELATED TO THE MILITARY 29
PROPOSED FEM PACKAGING FOR MILITARY
A.
PURPOSES 29
B. ADVANTAGES OF FEM FOR MILITARY APPLICATIONS 30
.
1. Non-volatility 30
a. Primary Computer Memory 30
(1) Primary memory in Naval aviation 31
(2) Primary memory in military spacecraft 32
b. Secondary Computer Memory 32
VI