理学 计算机硬件电路 释 fanout-of-4 inverter delay; FO4 inverter delay 四扇出反向器延迟 互补金属氧化物半导体（CMOS）数字电路的一种工艺无关的延迟度量单位，相当于一个最小尺寸的反相器驱动四个相同尺寸反相器时的延迟。针对某种具体的制造工艺，FO4约等于特征尺寸乘以0.36ns/μm。
计算机硬件 计算机集成电路 释文 fan-out of four, FO4 四扇出反向器延迟
- bird-in-hand theory
- Bird Island
- Bird Lady: Painted Terracotta Figurine of a Woman
- Bird Men
- bird migration
- bird-nest fern
- bird reproduction
- bird rhythm
- bird ringing
- Birds and Flowers by Qian Xuan
- birds and rats share a cave
- Birds, Bamboos and Rocks
- bird-scaring lines
- birdseye structure
- bird's-eye view
- bird's eye view map
- bird's foot trefoil
- Birds Gathering in Bamboo and Rock by Wang Yuan
- Birds Gathering in Shrubbery by Lin Liang
- bird-shaped jades of Hongshan Culture
- bird shit (guano) as phosphate rock
- birds holding ribbon patterns
- Birds, Insects and Turtles Sketched from Life
- birds island
- Bird's Nest