Method of packaging semiconductor die without lead frame or substrate

A method of packaging a semiconductor die ( 10 ) includes providing a flip-chip die ( 10 ) with bump connections ( 12 ) on its bottom surface ( 14 ). An adhesive tape ( 18 ) is attached to a plate surface ( 16 ) and lead fingers ( 20 ) are formed on the tape ( 18 ). The die ( 10 ) is placed on the t...

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Bibliographic Details
Main Authors ISMAIL AMINUDDIN, FOONG CHEE SENG, IBRAHIM RUZAINI
Format Patent
LanguageEnglish
Published 07.10.2008
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:A method of packaging a semiconductor die ( 10 ) includes providing a flip-chip die ( 10 ) with bump connections ( 12 ) on its bottom surface ( 14 ). An adhesive tape ( 18 ) is attached to a plate surface ( 16 ) and lead fingers ( 20 ) are formed on the tape ( 18 ). The die ( 10 ) is placed on the tape ( 18 ) such that the bumps ( 12 ) on the die ( 10 ) contact respective ones of the lead fingers ( 20 ) on the tape ( 18 ). A reflow process is performed on the die ( 10 ), the tape ( 18 ) and the plate ( 16 ), which forms C5 type interconnects. A mold compound ( 24 ) is formed over the die ( 10 ) and the tape ( 18 ), and then the tape ( 18 ) and the plate ( 16 ) are removed.
Bibliography:Application Number: US20060341303