Method for cleaning molding compound tablets

Details Method for cleaning molding compound tablets Method for cleaning molding compound tablets

1997-02-21

1999-04-13

Ludlow, Jan

Cleaning and liquid contact with solids

Processes

Including melting

134 21, 134 254, 134 32, 134 37, 134 42, 26427211, 2643285, B08B 500

Patent

active

058933808

ABSTRACT:
A method for cleaning molding compound tablets while the molding compound tablets are transferred from a tablet container to a molding equipment for encapsulating a microelectronic device. The method includes the steps of loading the molding compound tablets from the tablet container to a tablet parts feeder; transferring the molding compound tablets from the tablet parts feeder to the molding equipment along the transfer line; blowing hot air downwardly on the molded compound tablets as they move along the transfer line; commencing melting of the molded compound tablet, and any contaminants on the molded compound, with the hot air, such that the contaminants are incorporated into a resulting soft tablet dough; and injecting the soft tablet dough into the molding equipment.

REFERENCES:
patent: 3719325 (1973-03-01), Cerva et al.
patent: 3941537 (1976-03-01), Abraham
patent: 4534921 (1985-08-01), Fierkens et al.
patent: 4787436 (1988-11-01), Ozeki et al.
patent: 4983115 (1991-01-01), Yamasaki et al.
patent: 5431784 (1995-07-01), Miyamoto et al.
patent: 5509539 (1996-04-01), Hoang et al.

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