QFN PACKAGE WITH IMPROVED CONTACT PINS

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United States of America Patent

SERIAL NO

14946024

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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According to an embodiment of the present disclosure, a method for manufacturing an integrated circuit (IC) device may include mounting an IC chip onto a center support structure of a leadframe, bonding the IC chip to at least some of the plurality of pins, encapsulating the leadframe and bonded IC chip, sawing a step cut into the encapsulated leadframe, plating the exposed portion of the plurality of pins, and cutting the IC package free from the bar. The leadframe may include a plurality of pins extending from the center support structure and a bar connecting the plurality of pins remote from the center support structure. The step cut may be sawn into the encapsulated leadframe along a set of cutting lines using a first saw width without separating the bonded IC package from the bar, thereby exposing at least a portion of the plurality of pins. The IC package may be cut free from the bar by sawing through the encapsulated lead frame at the set of cutting lines using a second saw width less than the first saw width.

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Patent Owner(s)

Patent OwnerAddress
MICROCHIP TECHNOLOGY INCORPORATED2355 WEST CHANDLER BLVD CHANDLER AS 85224-6199

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitnarong, Rangsun Bangkeng Muang, TH 10 34
Nokdee, Watcharapong Amphur Muang, TH 1 5
Punyapor, Prachit Amphur Thanyaburi, TH 5 23

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