English
全部
搜索
图片
视频
地图
资讯
Copilot
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最佳匹配
最新
电子工程专辑
6 年
干货 | PCB Layout 跳坑指南——PCB走线角度选择到底该不该90°?
现在但凡打开SoC原厂的PCB Layout Guide,都会提及到高速信号的走线的拐角角度问题,都会说高速信号不要以直角走线,要以45度角走线,并且会说走圆弧会比45度拐角更好。 事实是不是这样?PCB走线角度该怎样设置,是走45度好还是走圆弧好?90度直角走线到底行不 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Chicago block stands
US economy grows by 4.3%
DOJ releases additional docs
Hemophilia trial: Patient dies
Approves troops to New Orleans
Battling stage-four cancer
File $50 million lawsuit
Seeks to cancel asylum cases
Reusable rocket test fails
Ashlee Buzzard in custody
Faces new charges
Controversial segment leaks
More shrimp recalled
More US troops in Caribbean
Arrested in London
To buy Armis for $7.75B
Judge accepts guilty pleas
Norwegian athlete dies at 27
DOJ sues Illinois’ governor
Running for Senate in Wyoming
Escaped inmates recaptured
RU launches attack on UKR
Jackpot climbs to $1.7B
OH lawmaker sues Trump
Louvre tightens security
Launches Senate bid
States sue HHS
Jon Heacock retires
Consumer confidence falls
Released from detention
Judge revokes release
Storms threaten California
Nursing home gas explosion
Troops withdraw from Siversk
Chicago Cubs sign Webb
反馈