초록 ▼

An electro-explosive device is provided for detonating a pyrotechnic mix disposed adjacent the device to initiate an explosion. The device comprises a silicon wafer semiconductor substrate having a top surface and a bottom surface. The top surface of the substrate is covered with an insulating layer

An electro-explosive device is provided for detonating a pyrotechnic mix disposed adjacent the device to initiate an explosion. The device comprises a silicon wafer semiconductor substrate having a top surface and a bottom surface. The top surface of the substrate is covered with an insulating layer and a cavity is formed through the insulating layer a predetermined distance into the substrate. A first layer of conducting material covers the insulating layer and the interior walls of the cavity and a second layer of conducting material covers the bottom surface of the substrate. A primary explosive material is packed in the cavity. When the first and second layers of conducting material are coupled to a source of electric current, the current flows into the conducting material lining the walls of the cavity causing it to explode through ohmic heating in a plasma, thus igniting the primary explosive material within the cavity. The resulting energy is projected from the cavity in a shaped, relatively collimated pattern to detonate a pyrotechnic mix disposed adjacent the device.

대표청구항 ▼

[ What is claimed is:] [1.] An electro-explosive device for initiating detonation of an adjacent pyrotechnic mixture, said electro-explosive device comprising:a semiconductor substrate having a top surface and a bottom surface;a layer of insulating material formed on said top surface of said substra

[ What is claimed is:] [1.] An electro-explosive device for initiating detonation of an adjacent pyrotechnic mixture, said electro-explosive device comprising:a semiconductor substrate having a top surface and a bottom surface;a layer of insulating material formed on said top surface of said substrate;a cavity formed in said top surface of said substrate, said cavity extending through said layer of insulating material and extending a predetermined distance into said substrate, said cavity having interior walls;a first layer of conducting material formed on and covering said layer of insulating material and said interior walls of said cavity; anda second layer of conducting material formed on and covering said bottom surface of said substrate;said first and second layers of conducting material being electrically connectable to a source of current sufficient to flow through said second layer of conductive material, through said substrate, and through the portion of said first layer of conductive material covering said interior walls of said cavity to explode the conducting material within said cavity in a plasma to ignite a pyrotechnic mix disposed adjacent said device.