PROTECTIVE STACKABLE TRAY FOR ELECTROSTATIC DISCHARGE SENSITIVE DEVICES USING SHAPE MEMORY POLYMERS AND A METHOD OF MANUFACTURING THE TRAY

The present application relates to a stackable tray for storage and transport of electrostatic discharge sensitive devices. The disclosed stackable tray is made of a shape memory polymer composite presenting electrostatic dissipative properties. The composite material used allows the recoverability...

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Bibliographische Detailangaben
Hauptverfasser:	CARDOSO LIMA, André Manuel, FERNANDES FERREIRA GONÇALVES, Luís Filipe, RIBEIRO DA SILVA, Cátia Samanta, DO CÉU GRAMAXO OLIVEIRA SAMPAIO, Álvaro Miguel, SAMPAIO DE ABREU FERNANDES, André Armindo, PINTO DA COSTA OLIVEIRA, Luís Filipe, VILELA PONTES, António José, FERREIRA RODRIGUES, Sérgio José
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SEMICONDUCTOR DEVICES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present application relates to a stackable tray for storage and transport of electrostatic discharge sensitive devices. The disclosed stackable tray is made of a shape memory polymer composite presenting electrostatic dissipative properties. The composite material used allows the recoverability and reusability of the tray for a new electronic product, while assuring process reproducibility in terms of dimensional accuracy and material properties maintenance. An anti-static additive compound is added to the composite to obtain a material that provides protection at the static dissipative range to electrostatic discharge sensitive devices from electrostatic discharges and fields. The present application also relates to a process that comprises the steps of mixing a shape memory polymer (1) with an anti-static additive compound (2), obtaining a permanent shape (3), obtaining a temporary shape (4) based on a mould structure (5), all by sheet extrusion (i), heating (ii), thermoforming (iii), cooling (iv), and shape recovery (v).