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US 2011/0298114 A1Published application
Stacked interposer leadframes
AssigneeLinear Technology Corporation
InventorDavid Alan PRUITT
Life of this patent
Estimating the term…
Abstract
A stacked leadframe assembly is disclosed. The stacked leadframe assembly includes a first die having a surface that defines a mounting plane, a first leadframe stacked over and attached to the first die, a second die stacked over and attached to the first leadframe; and a second leadframe stacked over and attached to the second die. The leadframes have die paddles with extended side panels that have attachment surfaces in the mounting plane.
Claims23
A stacked leadframe assembly comprising:
- a first die having a surface that defines a mounting plane;
- a first leadframe having a die paddle with extended side panels that have attachment surfaces in the mounting plane, the first leadframe being stacked over and attached to the first die;
- a second die, stacked over and attached to the first leadframe;
- and
- a second leadframe having a die paddle with extended side panels that have attachment surfaces in the mounting plane, the second leadframe being stacked over and attached to the second die.
2 more elements
An integrated circuit device, comprising:
- a substrate having circuitry;
- and
- at least one stacked leadframe assembly attached to the substrate, the stacked leadframe assembly comprising:
- a first die;
- a first leadframe stacked over the first die;
- at least one second die stacked over the first leadframe;
- and
- at least one second leadframe stacked over the second die.
5 more elements
A method of manufacturing stacked leadframe assemblies, comprising the steps of:
- placing a first die on a carrier;
- placing a first leadframe over the first die and attaching the first leadframe to the first die;
- placing a second die over the first leadframe and attaching the second die to the first leadframe;
- and
- placing a second leadframe over the second die and attaching the second leadframe to the second die.
2 more elements
Dependencies are inferred from the claim text.