Verpackungsmittel für Halbleiterbauelemente mit einer Vakuumversiegelungs-Anzeigekarte

Verpackungsmittel für Halbleiterbauelemente mit einer Vakuumversiegelungs-Anzeigekarte

Plastic encapsulated semiconductor devices are susceptible to moisture due to the permeability of molding compounds. Devices may be baked until dry before being shipped to the customer to reduce the risk of cracking. To retain this dry condition, devices are packaged and shipped in dry-packs. A vacu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PASTORE, JOHN R., LEANDER, TEXAS 78641, US, NOMI, VICTOR K., ROUND ROCK, TEXAS 78681, US
Format: Patent
Sprache:ger
Schlagworte:
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
BASIC ELECTRIC ELEMENTS
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HANDLING THIN OR FILAMENTARY MATERIAL
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
SEMICONDUCTOR DEVICES
STORING
TRANSPORTING
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Beschreibung
Zusammenfassung:Plastic encapsulated semiconductor devices are susceptible to moisture due to the permeability of molding compounds. Devices may be baked until dry before being shipped to the customer to reduce the risk of cracking. To retain this dry condition, devices are packaged and shipped in dry-packs. A vacuum seal indicator (18) for flexible material enables a user to determine the integrity of a vacuum seal. The seal indicator has a quick recognition pattern composed of either negative (22) or positive (24) features or a combination thereof, and is placed inside a dry-pack bag (30) which is vacuum sealed prior to shipping. The integrity of the vacuum seal can be determined by looking at the dry-pack bag to see whether the recognition pattern is sharply defined against the bag or not. The vacuum seal indicator can be used in conjunction with any shipping media (28) as long as the outer bag is flexible.