08723318 is referenced by 1 patents and cites 225 patents.

A packaged microelectronic element includes a microelectronic element having a front surface and a plurality of first solid metal posts extending away from the front surface. A substrate has a major surface and a plurality of conductive elements exposed at the major surface and joined to the first solid metal posts. In particular examples, the conductive elements can be bond pads or can be second posts having top surfaces and edge surfaces extending at substantial angles away therefrom. Each first solid metal post includes a base region adjacent the microelectronic element and a tip region remote from the microelectronic element, the base region and tip region having respective concave circumferential surfaces. Each first solid metal post has a horizontal dimension which is a first function of vertical location in the base region and which is a second function of vertical location in the tip region.

Title
Microelectronic packages with dual or multiple-etched flip-chip connectors
Application Number
13/711091
Publication Number
8723318 (B2)
Application Date
December 11, 2012
Publication Date
May 13, 2014
Inventor
Belgacem Haba
Saratoga
CA, US
Agent
Lerner David Littenberg Krumholz & Mentlik
Assignee
Tessera
CA, US
IPC
H01L 23/498
H01L 23/52
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