t*******c
发帖数: 306 | 1 考虑收ｎｅｗ ｇｒａｄ
Staff II Physical Design Engineer
Responsibilities include:
Interacting with the architecture team to develop a physical implementation
that can meet the schedule, power, frequency and area design targets.
Implementing the function using custom design techniques and enhanced
synthesis methodology
Insuring circuit based design specifications are met: setup and hold timing,
slew rates, noise, signal and power EM, dynamic and static IR, right sizing
of devices, VT and gate length select... 阅读全帖 |
|
w********h
发帖数: 12367 | 2 Mesophases of Diblock Copolymers in Solution
Collaborators – Prof. R.A. Register, Chiajen Lai
Funding - National Science Foundation (Princeton Center for Complex
Materials)
Amphiphiles, such as surfactants and block copolymers, spontaneously
self-assemble in order to minimize interactions between their incompatible
components. In the bulk or concentrated solutions highly regular structures
with periodicity in the nanometer range emerge, according to principles that
are reasonably well-defined f |
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w********h
发帖数: 12367 | 3 标 题: Carbon nanotube (5)
发信站: 日月光华 (2002年08月05日08:07:00 星期一), 站内信件
Nanometer-Sized Electronic Devices
Electronic circuits cannot continue to shrink by orders of magnitude and pro
vide corresponding increases in computational power, unless radically differ
ent device materials, architectures, and assembly processes are developed. D
ramatic recent advances have fueled speculation that nanotubes will be usefu
l for downsizing circuit dimensions. For example, current-induced electromig
ration cause |
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b**s
发帖数: 589 | 4 The bottom-up approach to fabricating nanometer-size electronic devices
requires molecular building blocks to recognize each other correctly and
self-assemble. Biomolecules are attractive candidates, offering binding
specificity and accurate enzymatic processing.
Scientists at the Technion-Israel and Institute of Technology, Haifa, used
these properties of DNA and RecA protein in a process they call molecular
lithography. They have created conductive wires with insulating gaps by
coating p |
|
c*s
发帖数: 2145 | 5 发信人: nanometer (断红有字), 信区: NanoST
标 题: IBM发布世界最小晶体管--仅6nm！！
发信站: 瀚海星云 (2002年12月10日17:50:43 星期二), 站内信件
在本周旧金山举办的国际电子设备会议上(IEDM)，IBM研发集团将宣布这一新晶体管,其
门电路长度仅为6纳米，比人的头发还细1000倍。
晶体管是芯片电路的组成部分，起着电信号开关作用。IBM研究人员称，这一新晶体管的
诞生对芯片技术影响深远，它有助于改进将来处理器的性能。
多年以来，芯片厂商通过不断增加晶体管来提高处理器性能，并遵循着著名的摩尔（Moo
re）定律---称晶体管数量每隔两年会翻一番。芯片厂家通过紧缩体积来增加晶体管，然
而如果晶体管本身的体积不能够继续减小，那么摩尔定律就不再适用。
IBM的这款新晶体管比目前最小的晶体管还小10倍，IBM研究人员称，在10多年后仍可以
采用现有芯片技术制造晶体管。
IBM研发部探测设备及集成组Meikei Ieong称：“这项工作的最大成就在于，我们首次证
明了在如此小体积下晶体管仍能够工作”。
但是为制造这个晶体管花费了一年的时间 |
|
c*s
发帖数: 2145 | 6 发信人: nanometer (断红有字), 信区: NanoST
标 题: 杰尔公司指出：硅基集成电路大限未至
发信站: 瀚海星云 (2002年12月11日12:14:00 星期三), 站内信件
【日经BP社报道】美国杰尔系统公司（Agere Systems, Inc.）日前宣布，该公司研
究人员撰写的有关“硅基IC的极限短期内不会来临”的论文已经刊登于《自然》杂志上
。此前业内曾普遍认为，随着深次微米技术的不断发展，栅极氧化膜厚度一旦突破2nm，
就会丧失绝缘性，因此硅基IC大限将至。
但最近的研究表明：即使进一步减小氧化膜的厚度，仍可以在不引起雪崩式击穿的
前提下继续发展深次微米技术。也就是说，由于只会发生互不关联的缓慢软击穿（Uncor
related Soft Breakdown），因此不会影响到电路的性能。在这篇论文中，解释了这两
种击穿现象的区别。
杰尔公司表示：“尽管仍有需解决的问题，但硅基IC的可靠性丝毫不会受到动摇。
因此，没有必要寻找取代硅的材料”。另外，该公司还计划在2002年12月9日于美国旧金
山召开的“2002年国际电子元件会议（2002 IEEE In |
|
t***m
发帖数: 114 | 7 sorry
昨天太匆忙了没回，sorry ah
I actually want to obtain some special tempelates
with surface slightly modified.
for example, we crosslink the sphere more tightly.
thus we stand great chance to obtain paritles with size
of only several nanometers
still not test this, expected 200 or higher
heihei, I am not in states,
what kind of particle you want |
|
a***n
发帖数: 578 | 8 nanoparticle generally is regarded as tens nanometer above which involves with
thousand atoms.
cluster generally means less than 100 atoms. or ultra-small nanoparticle. |
|
c*s
发帖数: 2145 | 9 from tens to hundreds of nanometers
exhibits LCST at range 32 to 40 degree |
|
f**********e
发帖数: 236 | 10 Can't agree more. The fancy staff in nano-science has been done a lot. But the
real applications are still far away. An interesting thing is people know
little about how dangerous these materials are to humans. The first account of
using QDs for bio-labelling showed up in 1998. But until this year, there is
the first paper dealing with the cyctotoxicity of them.
The creatation of nanometer-sized material based devices is also really tough,
if not harder than biological application. However, if t |
|
c*s
发帖数: 2145 | 11 来自主题: Macromolecules版 - 今天的收获 well, I think there are some fifferences between what you discript and what I
imagine. Forgive my stupid if I am wrong.
frist concern is the size, I am not sure what is the charaterized length scale
in TE, but it should be micron scale. However, in color printer, I assume the
scale is hunderds of microns.
Maybe you are right, since I recalled that ppl can do 3-D photonic crystals at
hundreds nanometers.
But I am still confused about complexity of the work.
you
另
的
一
一
转
提
促 |
|
c*s
发帖数: 2145 | 12 let me try to explain
it is well known that teh polymer blend or block polymerwill phase seperation
when dried. depending on the ratio, they may have different morphology.
but, the phase seperation should occur at teh length scale of tens or hundred
nanometers, for example, for 100k molecular weight, the size should be ~100nm.
In your case, it is much much larger than that.
therefore, the reason is probably that you have not mixed the two materials
thoroughly. and the materials simply formed dif |
|
c*s
发帖数: 2145 | 13
time
I agree with you , I missed the point that the film showed a pattened
structure
Furthermore, I havw one question for you, did you see some exaples about
phase seperation at larger length scale like hundreds of nanometers while
keeping the ordered structure? I am doubtful on this since if the length
scale is unlimited.
|
|
c*****e
发帖数: 238 | 14 Order at that length scale is hardly imaginable for me.
In general there are only microphase transition (typically at the length scale
of nanometers) and macrophase separation (reaching equilibrium at macroscopic
length scale, say 1 micron to millimeter).
There is no reason for being in an ordered structure (i.e. with a typical
length scale) while the physical system does not possess such a length scale.
However, kinetic and dynamic factors can generate some themes, notably the
chaotic behavior |
|
c*s
发帖数: 2145 | 15 thanks... and now I know the PS-PMMA can be form nuch larger pitch.
also, I am curious if the order can be imporved to be comparable to this one:
ADVANCED MATERIALS 16 (23-24): 2119-+ DEC 27 2004
can anybody suggest some literature reporting an ordered structure with say,
300 nanometers pitch? |
|
c*s
发帖数: 2145 | 16 my guess is that thickness determines, it will likely form nanometer scale...
it is interesting to think about if there is some intermediate stage...
length
, |
|
c*s
发帖数: 2145 | 17 they can get smaller features like tens of nanometers, also, it is cheap.
not |
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s******n
发帖数: 179 | 18 topic是Novel Two-Dimensional Nanomaterials and Their Electronic and
Spintronic Applications。 我们欢迎任何形式和相关内容的投稿，这个期刊是open
access的期刊，SCI检索，影响因子1.6。 如果您和您的朋友有paper打算投到我们这里
，我非常欢迎~ 也请大家帮忙把我的这个email转发给您的同事，前/现学生，和朋友，
帮我们广而告之哈~
多谢大家了~
weblink: http://www.hindawi.com/journals/jnm/si/738421/cfp/
Novel Two-Dimensional Nanomaterials and Their Electronic and Spintronic
Applications
Call for Papers
The quickening pace of CMOS technology scaling is accelerating the
introduction of emerging and thriving nanomat... 阅读全帖 |
|
k*****a
发帖数: 1518 | 19 1. 你说的theory一定不适用于nano领域(i.e. characterstics length in the order of
10 to -9 meter), no matter for "solid" or "fluid". As a matter of fact, at
this length scale, there are no major between "solid" or "fluid"
（在nanometer尺度，区分“固体”“流体”是很不合适的）;
2. 你说的理论如果是用newton's law研究流体，将流体假设为刚体之间的相互作用如碰
撞，那该理论对稀薄气体可以适用，愿意是稀薄气体的free length在10s micrometer 以
上。
3. 如果不是这样，请推荐一两篇代表性的文章，俺也学习学习。。。
谢谢 |
|
k*****a
发帖数: 1518 | 20 do you mean this booK? it seems an old book published 20 years ago.
I'll borrow it and see if Newton's 2nd law applicable to nanometer (1^-9)
range.
Molecular theory of capillarity
Rowlinson, J. S. (John Shipley), 1926-
Local call number: QC 183 .R75 GERSTM 1
Personal Author: Rowlinson, J. S. (John Shipley), 1926-
Title: Molecular theory of capillarity / by J.S. Rowlinson and B. Widom.
Publication info: Oxford, Oxfordshire : Clarendon Press, 1982.
Physical descrip: xi, 327 p. : ill. --
Serie |
|
sc
发帖数: 122 | 21 好吧，那么newton's law就不能做nano，md就是newtons law
md就不能做nano。我承认你是对的...
这里除了我还有谁用md做nano-fluid/nano-structure的？
大家不要玩了吧，都是错的...
hehe，严肃的说，
我猜feynman的意思是在原子内部尺度上要考虑量子效应，如果你要做
md我想例如液氦，atom之间距离几个anstrom，还是没那么多量子效应
更何况md就是做个近似，谁说L-J potential就是对的...
更多的情况下md中的粒子是分子，model的相互作用势是分子之间的
其实我说不好，自己就在用，又不会科普，又不会想清楚最基本的道理
问物理系md的人吧。 |
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t*n
发帖数: 14458 | 22 一般大概没那么严格，无数人都在用MD算nano有关的问题 |
|
a******s
发帖数: 232 | 23 这么说就没道理了，很多人都犯罪，难道你也跟着犯罪？ |
|
k*********r
发帖数: 758 | 24 MD本来就是半定量半定性的一种方法, 它的好处是速度比较快. |
|
|
c******p
发帖数: 2 | 26 引用前人的几句话就断定“适用”与“不适用“的做法是错误的。谁说了都不算，只能由
实验事实来下决断。
MD其实是能够反应相当一部分事实，而且很有助于帮助我们理解nano尺度下的一些现象。
因此，做MD是没有问题的。但是，也不要太把MD当回事。充其量，MD做好了，找个地方宣
读一下论文，大家讨论讨论，意淫一番，没有人把它当真。
其实，大家只要条件许可，还是多花点时间来做实验吧。实验做好了，可以直接上sience
,nature。有几份这样的结果，运气再好点，拿个若贝尔奖什么的，也不枉把青春都放在
科研上了。
page
are
i.e.
book
is
infer |
|
t*******h
发帖数: 51 | 27 So far, there are two totally different definations of nanofluid. One is the
nanoparticles dispersed in a liquid phase, which possesses physcial
properties, e.g. enhanced thermal conductivity, compare to pure liquid.I don
't know much of this topic, but just heard Gang Chen at MIT has done
soemthing a little bit like this. The seond refers to the fluid that is
comfined in a nanometer-sized channel, and emerges novel properties in terms
of fluid dynamics, electrokinetics, and transport behavior c |
|
m******i
发帖数: 834 | 28 Nanotechnology provides 'green' path to environmentally sustainable economy
WASHINGTON, DC – As products made with nanometer-scale materials and
devices spread to more industries and markets, there is a growing
opportunity and responsibility to leverage nanotechnology to reduce
pollution, conserve resources and, ultimately, build a "clean" economy,
advises a new report from the Project on Emerging Nanotechnologies.
A "strong marriage" between nanotechnology and the principles and practices
of gr |
|
m******i
发帖数: 834 | 29 The U.S. National Nanotechnology Initiative uses the term "nanotechnology"
to describe:
* Research and technology development aimed to work at atomic and
molecular scales, in the length scale of approximately 1 - 100 nanometer
range;
* The ability to understand, create and use structures, devices and
systems that have fundamentally new properties and functions because of
their nanoscale structure;
* The ability to control – to see, measure and manipulate – matter on
the atomic scale |
|
m******i
发帖数: 834 | 30 Focused Ion Beam Microscopy and Micromachining
Volume 32, No. 5, 2007
Guest Editors: Cynthia A. Volkert and Andrew M. Minor
The recent availability of commercial focused ion beam (FIB) microscopes has
rapidly led to widespread use in materials research. FIB instruments have
both imaging and micromachining capabilities at the nanometer-to-micrometer
scale; thus, a broad range of fundamental studies and technological
applications have been enhanced or made possible by FIB technology. This
issue hi |
|
c*s
发帖数: 2145 | 31 totally agree, the surfactant is also within the regime of nanometers maybe
1>d>2 nm |
|
s******n
发帖数: 179 | 32 topic是Novel Two-Dimensional Nanomaterials and Their Electronic and
Spintronic Applications。 我们欢迎任何形式和相关内容的投稿，这个期刊是open
access的期刊，SCI检索，影响因子1.6。 如果您和您的朋友有paper打算投到我们这里
，我非常欢迎~ 也请大家帮忙把我的这个email转发给您的同事，前/现学生，和朋友，
帮我们广而告之哈~
多谢大家了~
weblink: http://www.hindawi.com/journals/jnm/si/738421/cfp/
Novel Two-Dimensional Nanomaterials and Their Electronic and Spintronic
Applications
Call for Papers
The quickening pace of CMOS technology scaling is accelerating the
introduction of emerging and thriving nanomat... 阅读全帖 |
|
发帖数: 1 | 33 代editor发的：
Dear colleagues and friends,
As the Editor in Chief and also on behalf of all the Associated Editors, I
am pleased to inform you that we have launched a new journal, Nanoscience
and Nanometrology,
http://www.sciencepublishinggroup.com/journal/index?journalid=356
which aims at addressing metrological aspects of nanoscience and
nanotechnology. Launching Nanoscience and Nanometrology meets the need for
a unique forum where works devoted to methodologies, techniques,
instrumentation ... 阅读全帖 |
|
o*****9
发帖数: 61 | 34 Our lab is collabrated with a nanomaterial company. Some of these materails
will be used in biological system for tumor targeting, cell or animal
imaging since they can emit very strong and stable flurescence at the
specific excitation. The range of the size of this kind of of materials is
around 2nm to 100nm (nanometers).Since their really small characteristic, so
they can be get bigger surface compared with bulk materials at the same
mass. The bigger surface can be good, such as linked with so |
|
o*****9
发帖数: 61 | 35 Our lab is collabrated with a nanomaterial company. Some of these materails
will be used in biological system for tumor targeting, cell or animal
imaging since they can emit very strong and stable flurescence at the
specific excitation. The range of the size of this kind of of materials is
around 2nm to 100nm (nanometers).Since their really small characteristic, so
they can be get bigger surface compared with bulk materials at the same
mass. The bigger surface can be good, such as linked with so |
|
s******n
发帖数: 179 | 36 topic是Novel Two-Dimensional Nanomaterials and Their Electronic and
Spintronic Applications。 我们欢迎任何形式和相关内容的投稿，这个期刊是open
access的期刊，SCI检索，影响因子1.6。 如果您和您的朋友有paper打算投到我们这里
，我非常欢迎~ 也请大家帮忙把我的这个email转发给您的同事，前/现学生，和朋友，
帮我们广而告之哈~
多谢大家了~
weblink: http://www.hindawi.com/journals/jnm/si/738421/cfp/
Novel Two-Dimensional Nanomaterials and Their Electronic and Spintronic
Applications
Call for Papers
The quickening pace of CMOS technology scaling is accelerating the
introduction of emerging and thriving nanomat... 阅读全帖 |
|
l**********n
发帖数: 72 | 37 Generally when we deal with electromagnetic theory, we have the boundary
conditions as the tangential component of the electric field is continuous and
the electrical displacement vector perpendicular to the interface is
continuous when there is no free charge. And so when we send a plane wave to
the interface, we could get the Snell's law behavior for the transmitted wave.
Let's consider this at the microscopic level, basically at room temperature,
the photons are absorped by the molecules(atom |
|
Eg
发帖数: 80 | 38 Can your sample accept low frequency AC? If do, it's easy --- just
use a lock-in and draw microamp or nanoamp current --- 2K sample will
not be warmed up then.
If your sample can't accept AC, still use small current, but make a
PreAmp before the nanometer --- that will be a little bit noisy and
tricky, but still have a good result. Basicly, 2K is really hot comparing
with the "real" low temperature experiments, and 40 Ohm is still big enough
--- you shouldn't worry about the problem of "self war |
|
c*s
发帖数: 2145 | 39 for fabrication of a 2 dimensional semiconductor nanotube grid, techniquelly,
it is not a big deal from a chemists's view point.
If interest, you can refer to Whitesides' work, in which pure crystals with
hundred nanometers can be patterned on a silicon chip.
If you want to know more about this, I can be a little helper. :)
n-type
between
fermi
has
heard
like |
|
f**d
发帖数: 768 | 40 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
|
n****r
发帖数: 246 | 41 WIKIPEDIA上这么介绍他：
Winfried Denk (born November 12, 1957 in Munich) is a German physicist and n
eurobiologist, director of the Max-Plack Institute for Medical Research in H
eidelberg. He is noted for being the first to implement two-photon microscop
y, a breakthrough in fluorescent microscopy that allows to image live cells
deep in highly scattering tissue. His second major invention is a machine th
at automatically acquires three-dimensional images at a resolution of a few
nanometers. This techni... 阅读全帖 |
|
t**n
发帖数: 45 | 42 【 以下文字转载自 JobHunting 讨论区 】
发信人: tarn (空心), 信区: JobHunting
标 题: Intel Dalian Sr Data Scientist Position
关键字: data scientist
发信站: BBS 未名空间站 (Thu Dec 24 23:31:30 2015, 美东)
Job Description
Intel Dalian Fab68 site will produce its latest 3D NAND technology. Fab68
has been in operation since 2010 producing 65-nanometer products for Intel.
The collaboration with the Dalian government has been and continues to be an
excellent partnership. We have a long term plan for this facility and may
invest up to ... 阅读全帖 |
|
C******g
发帖数: 2930 | 43 Sure, it was to be expected. News that the PS3 Slim would not only be
smaller (33% according to Sony; it's slim!), but use less power (34% less),
weigh less (36% lighter), and cost less (a solid Benjamin!) all pointed to
one thing: black magic.
Turns out, our hunch was wrong (at least in part). IBM has revealed that the
Cell processor under the newly matte-ified hood of the PS3 Slim was "
manufactured using an advanced 45-nanometer manufacturing process" that will
deliver "many performance impro |
|
w*******y
发帖数: 60932 | 44 Intel 320 Series SSDSA2CW120G3K5 2.5" 120GB SATA II MLC Internal Solid State
Drive (SSD) - $219.99 Less Coupon Code is $199.99 with free shipping.
Google Shopping:
http://www.google.com/products/catalog?hl=en&q=Intel 320 Series 120GB 2.5" Internal SSD&um=1&ie=UTF-8&cid=5606119828459360412&sa=X&ei=z0jHTev-DYnegQfpxbXMBA&ved=0CDYQ8wIwAg#
#" rel="nofollow" target="_blank" onclick="_gaq.push(['_trackEvent', 'thread
', 'click', '2910265 - intel-320-series-120gb-sata-ii-mlc-2.5-internal-
notebook-ssd... 阅读全帖 |
|
w*******y
发帖数: 60932 | 45 I have no idea why this drive is cheaper than same size and brand drives
that have 32MB cache. I am trying to figure out if there is something
obvious I am missing that is making this drive come in at close to pre
flooding price but can't seem find it. I have placed an order for one myself
but would like to see if others think this is a good deal or not.
Linky:
http://www.amazon.com/Barracuda-7200RPM-Cache-3-5-Inch-Internal
Product Features
1TB 7200 RPM Hard Drive
SATA 6Gb/s interface optimizes ... 阅读全帖 |
|
w*******y
发帖数: 60932 | 46 Seagate Barracuda 7200 3 TB 7200RPM SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch
Internal Bare Drive ST3000DM001
3TB 7200 RPM Hard Drive
SATA 6Gb/s interface optimizes burst performance
Seagate AcuTrac servo technology delivers dependable performance, even
with hard drive track widths of only 75 nanometers
Seagate OptiCache technology boosts overall performance by as much as 45
% over the previous generation.
Ships in Certified Frustration-Free Packaging
Best Fit Applications include:... 阅读全帖 |
|
