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JSSC 2006第1期RF & Wireless0.25 μm CMOS

A 195-Gbs 12-W Inductive Inter-Chip Wireless Superconnect With Transmit Power Co

通过电感耦合实现195 Gb/s的无线接口,功耗1.2W,用于4层堆叠芯片通信。
195 Gb/s, 1.2 W, 1 Gb/s/channel, 15-43 μm通信距离
电感耦合无线接口堆叠芯片低功耗动态功率控制
创新点1:电感耦合无线接口(系统创新)- 采用电感耦合技术实现4芯片堆叠封装内195 Gb/s的聚合数据速率,通过50微米间距排列195个1 Gb/s/通道的收发器,在0.25微米CMOS工艺下实现15-43微米通信距离,显著提升集成密度与带宽效率。
创新点2:动态发射功率控制(电路创新)- 根据通信距离动态调整发射功率,不仅降低1.2 W总功耗,还减少通道间串扰,优化能效比(55%功耗降低)与信号完整性。
创新点3:低功耗单端发射器(电路创新)- 采用单端架构设计,相比差分方案节省55%功耗,支持多连接场景,在1 Gb/s/通道速率下实现0.25微米工艺的高能效传输。
创新点4:超薄芯片集成(工艺创新)- 通过将芯片厚度减薄至10微米,使电感耦合在15-43微米间距内稳定工作,突破传统封装对无线互连距离的限制。
Abstract
A wireless interface by inductive coupling achieves aggregated data rate of 195 Gb/s with power dissipation of 1.2 W among 4-stacked chips in a package where 195 transceivers with the data rate of 1 Gb/s/channel are arranged in 50- m pitch in 0.25- m CMOS technology. By thinning chip thickness to 10 m, the interface communicates at distance of 15 m at minimum and 43 m at maximum. A low-power single-end transmitter achieves 55% power reduction for multiple connections. The transmit power is d