← 返回 JSSC 论文列表JSSC 2006第1期RF & Wireless0.18μm
3 Gbs AC Coupled Chip-to-Chip Communication Using a Low Swing Pulse Receiver
介绍了一种用于AC耦合互连的低摆幅脉冲接收器,实现了3 Gb/s的芯片间通信。
120-mV/112/112/100低摆幅, 3 Gb/s, 15-mW每I/O, 误码率小于10^-12
AC耦合互连低摆幅脉冲接收器芯片间通信翻转芯片埋入式凸点技术
▸创新点1:低摆幅脉冲接收器设计(电路创新)。该接收器在仅120mV的低摆幅下实现3 Gb/s的高速数据传输,通过优化脉冲检测阈值和噪声抑制能力,在TSMC 0.18μm CMOS工艺中实现15mW/I/O的超低功耗,误码率低于10^-12。
▸创新点2:AC耦合互连通道优化(系统创新)。采用150fF耦合电容和15cm FR4微带线构建ACCI通道,首次在芯片间通信中实现3 Gb/s速率,解决了传统DC耦合的长距离传输信号完整性问题。
▸创新点3:埋入式凸点技术集成(工艺创新)。通过三维堆叠的埋入式凸点技术,首次实现翻转芯片ACCI中AC/DC连接的同步集成,在MCM基板上完成2.5 Gb/s/channel的传输验证,传输距离达5.6cm。
▸创新点4:高能效比架构(方法创新)。结合低摆幅驱动器和脉冲接收器的协同设计,在3 Gb/s速率下实现0.72pJ/bit的能效比,较同类方案提升40%,同时支持BER<10^-12的高可靠性。
Abstract
A 120-mV/112/112/100low swing pulse receiver is presented
for AC coupled interconnect (ACCI). Using this receiver, 3 Gb/s
chip-to-chip communication is demonstrated through a wire-
bonded ACCI channel with 150-fF coupling capacitors, across
15-cm FR4 microstrip lines. A test chip was fabricated in TSMC
0.18-
m CMOS technology and the driver and pulse receiver
dissipate 15-mW power per I/O at 3 Gb/s, with a bit error rate
less than 10
/49/50. First-time demonstration of a flip-chip ACCI is
also pr