Microelectronic device with pillars having flared ends

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11756914
APP PUB NO 20210375812A1
SERIAL NO

17404958

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A microelectronic device has a die with a die conductor at a connection surface. The microelectronic device includes a pillar electrically coupled to the die conductor, and a head electrically coupled to the pillar. The pillar has a die-side flared end at a die end of the pillar; the pillar widens progressively along the die-side flared end, and extends outward by more than a lesser of half a thickness of the die conductor and half a lateral width of the pillar midway between a die end and a head end. The pillar has a head-side flared end at a head end of the pillar; the pillar widens progressively along the die-side flared end, and extends outward by a distance that is greater than a lesser of half a thickness of the head and half the lateral width of the pillar. Methods of forming the microelectronic device are disclosed.

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Patent Owner(s)

  • AGILENT TECHNOLOGIES TEXAS INSTRUMENTS INCORPORATED

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koduri, Sreenivasan K Allen, US 121 524

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