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
1 年
负胶的Undercut在lift-off工艺中的应用
光刻工艺中负胶因为粘度偏大,和正胶相反的曝光模式,被广泛应用,但是负胶精度没有正胶好,容易显影变形,价格也普遍相对较贵。 负胶:聚合物的短链分子因光照而交联成为长链分子的为负胶(cross linking)。或者说,光刻过程中被的光照的区域在 ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
今日热点
Judge blocks subpoenas
Tanker attacked in Black Sea
6 airmen killed in crash ID'd
NK fires missiles toward sea
Kirkwood wins Arlington GP
Russian attack on Kyiv region
Motorhead guitarist dies
NBA’s Silver visits Portland
US to receive $10B in deal?
Closing emergency room
Appeals for ceasefire
US reaches WBC semifinals
Pakistan strikes Kandahar
Threatens media licenses
DOJ drops prosecution
German philosopher dies
Three more decline asylum
Israeli soldiers kill 4
Protesters riot in Cuba
Vietnam holds general election
How to watch Oscars 2026
Qatar Grand Prix postponed
US, China begin trade talks
US flag raised in Venezuela
Shiffrin wins World Cup race
Epstein jail guard to testify
Race data demand blocked
Charges dismissed for teens
US embassy in Iraq hit
New WH visitor screening
Los Angeles asks for probe
Anti-ICE protesters convicted
Missing 9-year-old found
反馈