X-ray sensitive materials for data protection

A method, printed circuit board assembly (PCBA), and device comprising a PCBA are disclosed. The method includes obtaining a material comprising silver halide grains, incorporating the material into a PCBA having at least one component in contact with the material, detecting a variation in electrica...

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Bibliographische Detailangaben
Hauptverfasser:	Becker, Darryl, Campbell, Eric J, Doyle, Matthew, Jeanson, Mark J, Bartley, Gerald
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CALCULATING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLORIMETRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPUTING CORRECTING FLUIDS COUNTING DYES ELECTRIC DIGITAL DATA PROCESSING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FILLING PASTES INKS INORGANIC CHEMISTRY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES PRINTED CIRCUITS RADIATION PYROMETRY SEMICONDUCTOR DEVICES TESTING USE OF MATERIALS THEREFOR WOODSTAINS
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