Methods for making and using high explosive fills for MEMS devices

US7967929B1 · kind B1 · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Daniel Stec, III · Mount Clemens, US
• Amy Charlene Wilson · Belton, US
• Brian E. Fuchs · Hackettstown, US
• Neha Mehta · Sunny Sky Lane Southwest, US
• Paula Cook · Succasunna, US

Key dates

• Filing date: Dec 28, 2009
• Grant date: Jun 28, 2011
• Expiry date: Dec 28, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42D1/10
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Secondary crystalline high explosives are disclosed which are suitable for filling very small volume loading holes in micro-electric initiators for micro-electro-mechanical mechanisms (MEMS), used as safe and arm (S&A) devices. The explosives are prepared by adding the such a high explosive to an aqueous first volatile mobile phase, adding such a high explosive to a non-aqueous second volatile mobile phase, mixing the first and second volatile mobile phases and then loading the combined phases into the MEMS device and allowing the aqueous and non-aqueous solvents to evaporate depositing the high explosive. Enhanced adhesion between the deposited high explosive and enhanced rheological properties can be obtained by adding a polymeric binder to both mobile phases.