G Gao, L Mirkarimi, G Fountain, L Wang… - 2018 IEEE 68th …, 2018 - ieeexplore.ieee.org
… an interconnect pitch smaller than 40μm. Wafer-to-wafer (W2W) direct bond interconnect …
We measured CMP for the following bond pad sizes: 1 μm line width in a 20μm grid pattern, …