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TTank-automotive & AArmaments COMCOMmand
Design and Development of Micro EnergeticInitiators (MEI)
NDIA Fuze Conference04/09/2003
Author: Neha MehtaTACOM-ARDECChemical Engineer
Co-Authors:Brian Fuchs, Gartung Cheng, Mark Gelak –TACOM-ARDECDaniel Stec III – Geo CentersAmish Desai- Tanner Research
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Committed to Excellence
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THE TEAM
Ε TACOM-ARDEC Ε Geo–Centers, Inc.w Brian Fuchs w Daniel Stec III
w Gartung Cheng Ε Tanner Research Assoc.w Neha Mehta w Amish Desaiw Gerard Gillenw Mark Mezgerw Mark Gelakw Charles Robinsonw Mantech & JSSAP Funding
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INTRODUCTION• A joint ARMY/Industry program to develop a
process for manufacturing MEI for MEMS S&Adevices
• Current issues with traditional S&A that can beresolved with MEMS S&As– Cost– Weight– Size
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OBJECTIVE
• Program Overall Objective: Develop low costSafe and Arm System for the XM-29 IntegratedAirburst Weapon System
• Our Objective:– Develop low energy compact bridge design– Use bridge design in developing an MEI
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Schematic
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MEI ISSUES
• Cost– Loadability– Producibility
Ø While maintaining Reliability
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MEI Development
• 4 generations of ARDEC/Tanner Bridges– Flat geometry– Thin film heating element– Semiconductor Industry Procedures
• COTS Vishay Bridges• Loaded with Lead Styphnate• Obtained Firing voltage with XM29 firing
circuit
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Videography Test Setup
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Header with leads
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Functioning of 1st generationARDEC/Tanner Fixture
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ARDEC/Tanner 1st generation Bridges
62.8
9V Battery54.6
102.8
104.7
Firing Voltage(V)
MeasuredResistance (Ω)
Unit
L = 2 6 0 0W = 5 0 R = 3Ω
L = 2 6 0 0W = 5 0 R = 3Ω
L = 1 8 * 5 2 5W = 1 0 R = 6 0 Ω
L = 1 3 0 0W = 2 5 R = 3 Ω
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ARDEC/Tanner 2nd Generation
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2nd Generation Headers Firedwith Lead Styphnate
43.6
2.52.4
43.6
31.6
Firing Voltage(V)
MeasuredResistance (Ω)
Unit
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3rd generation of ARDEC/Tanner Bridgesloaded with Lead Styphnate
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3.01.9
2.751.5
2.51.8
3.01.3
Voltage (V)Measured
Resistance (Ω)Unit
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4th generation of ARDEC/TannerBridges
• Photoresist InsulatedBridges
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4th Generation Headers withpolyimide substrate
Unit
1.5
1.8
2.3
1.1
MeasuredResistance (Ω)
û = 1.45s = 0.213
û = 1.23s = 0.051
û = 1.54s = 0.056
û = 1.43s = 0.068
Bruceton test Results
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Vishay & ARDEC/Tanner Headers
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Vishay Bridges
4.02.57-L 2R
2.52.54-H 2R
3.05.73-H 5R
û = 1.407s = 0.0831
1.52.62-L 2R
1.55.21-H 5R
1.53.71-H 2R
Bruceton testResult
Firing Voltage(V)
MeasuredResistance (O)Unit
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Conclusion
• Met voltage requirements with highreliability
• Developed MEI• System has applicability to munitions
system
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