Multi-chip programmable logic device having configurable...

Details Multi-chip programmable logic device having configurable... Multi-chip programmable logic device having configurable...

2005-07-12

2005-07-12

Tokar, Michael (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Array

C326S037000

Reexamination Certificate

active

06917219

ABSTRACT:
The circuitry of a programmable logic device (for example, an FPGA) includes a configurable logic portion and a configuration memory. The configuration memory stores configuration data that configures the configurable logic portion to realize a user-defined circuit. The configurable logic portion is disposed on a first die whereas the configuration memory is disposed on a second die. The second die is bonded to the first die in stacked relation. Each bit of configuration data passes from the second die to the first die through a pair of micropads. One micropad of the pair is disposed on the first die and the other micropad of the pair is disposed on the second die. When the first die and second die are brought together in face-to-face relation, the two micropads form an electrical connection through which the configuration data bit passes from the second die to the first die.

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