Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor
Reexamination Certificate
2007-02-20
2007-02-20
Lebentritt, Michael (Department: 2812)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
C438S113000, C438S127000
Reexamination Certificate
active
11191132
ABSTRACT:
A method of packaging an integrated circuit die includes the steps of loading an array of soft conductive balls into recesses formed in a platen and locating the platen in a first part of a mold cavity. A second part of the mold is pressed against the balls to flatten a surface of the balls. A first mold compound then is injected into the mold cavity such that the mold compound surrounds exposed portions of the balls. The balls are removed from the platen and a first side of an integrated circuit die is attached to the balls. Die bonding pads on a second side of the die are electrically connected to respective ones of the balls surrounding the die, and then the die, the electrical connections, and a top portion of the conductive balls is encapsulated with a second mold compound.
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Bergere Charles
Freescale Semiconductor Inc.
Lebentritt Michael
Roman Angel
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