Abstract
Electro-plating methods currently used to deposit Cu in through-wafer interconnect applications result in the formation of a thick Cu layer with large amounts of topographical variation. In this paper, alternative methods for thick Cu removal are investigated using a two-step slurry CMP approach.
Original language | American English |
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Journal | IEEE Workshop on Microelectronics and Electron Devices, 2005 |
DOIs | |
State | Published - 1 Apr 2005 |
Keywords
- chemical mechanical polishing
- copper
- electroplating
- integrated circuit interconnections
- slurries
EGS Disciplines
- Computer Engineering
- Electrical and Computer Engineering