Nearly every chip being produced today faces at least one respin in the life of the project. Multiple respins are not uncommon. The financial pain of these engineering potholes can be alleviated by changing as few layers in the design as possible–two layers changed in a 10 layer design is a great savings over an all-layer respin.
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DCAP(Decap) cells
Instantaneous Voltage Drop (IVD) is a part of the landscape in Deep Sub-Micron (DSM) design. IVD is a droop in rail voltage prompted by large amounts of simultaneous switching in a circuit. Problems with IVD are especially common to high speed memories, which have potentially thousands of cells switching at a time.
汽车:老司机总结出的21条开车经验
1:堵车或等灯的时候别跟的太近,除非有人想加塞,至少要留出可以一把掰出去的距离,以防前车故障,自己也被加在中间。这是一个老司机告诉我的,当年他在3环就这样陪着前车呆了半个小时。
2:排队时,为了防止别人加塞,在加塞来车一侧,多留半个车身。比如你在左转道排队,经常有人从直行道过来加塞,你尽量用右轮压着左转道的右边线开,给自己向左迂回留出余地,再跟紧前车,加塞的很难得逞。
小游戏:环形三维立体俄罗斯方块
俄罗斯方块可谓是超级经典的小游戏,而且有很多版本。这里Truevue推荐一个环形三维立体俄罗斯方块,先看看游戏截图吧:
驾照到手,发文庆祝
历时2个月学车终于有了结果,昨天师傅把驾照给我了,挺开心的。下一步就是攒钱买车咯。罗列一下学车的过程吧:
Clock Net Shielding In IC Compiler (ICC)
Overview of Clock Net Shielding Methodologies
There are 2 clock net shielding flow, the difference is clock net shielding is either before signal routing or post. You can use the following two shielding methodologies:
- Shield before signal route: routing clocks + shielding clock nets + routing signal nets
- Shield after signal route: routing clocks + routing signal nets + shielding clock nets
汽车:MPV是什么意思
现在的车型很多,你会经常听到诸如SUV、MPV之类的车型。在前面的博文中,我介绍了SUV是什么意思,那么让我们再来看看MPV是什么意思,MPV是什么类型的车,什么样的车才能称之为MPV汽车。
锁相环PLL(Phase Locked Loop)
什么是锁相环PLL(Phase Locked Loop):
锁相环PLL是指一种电路或者模块,它用于在通信的接收机中,其作用是对接收到的信号进行处理,并从其中提取某个时钟的相位信息。或者说,对于接收到的信号,仿制一个时钟信号,使得这两个信号从某种角度来看是同步的(或者说,相干的)。
Drupal主题:标签(Taxonomy Term)按类别显示
在Wordpress中,标签会按照类别显示。不过Wordpress就两种标签:文章分类和标签。在Drupal中,你可以创建不同类型的标签,如:文章分类,文章地点,涉及人物,天气等等类型(Vocabulary)。但是默认时会将这些标签(Taxonomy Terms)显示在一起,我们可以用下面的代码将这些标签按类别分开显示:
Drupal主题:为摘要(teaser)页面制作专门的主题模板
有下面的三种方法可以为摘要页面制作单独的主题:
方法一: