Wednesday, August 31, 2011
Re: Comment p5000etch SNF 2011-08-27 09:43:20: Chamber C out of order
Tuesday, August 30, 2011
MISSING 2% 950K PMMA BOTTLE!!
The 2% 950K PMMA bottle is missing. There used to be two bottles in the yellow cabinet, one empty and one with plenty of PMMA in it. Only the empty one is there. I've searched in the yellow cabinet in the litho room and the refrigerator but didn't find it there either.
If you know where the bottle is, please let me know.
Mahnaz, if the bottle is not found soon, would it be possible to have a new bottle? I cannot proceed with my work without the PMMA...
Thanks,
Soogine.
--
Soogine Chong
Stanford University
PhD candidate in Electrical Engineering
e-mail: sgchong@stanford.edu
mobile: +1-650-804-8556
Re: wet etching TiO2
From: Neil Dasgupta <dasgupta@stanford.edu>
To: labmembers <labmembers@snf.stanford.edu>
Sent: Tuesday, August 30, 2011 2:16 PM
Subject: wet etching TiO2
Hi all,
Does anybody have any experience wet etching TiO2 thin films? I tried 20:1 and 6:1 BOE today on TiO2 films ranging from 15-40 nm deposited by ALD with no luck. Oh and also we use PR as an etch mask, so it would be preferable if the etchant was at least somewhat selective against resist.
Any help is greatly appreciated.
Thanks,
Neil Dasgupta
wet etching TiO2
Does anybody have any experience wet etching TiO2 thin films? I tried 20:1 and 6:1 BOE today on TiO2 films ranging from 15-40 nm deposited by ALD with no luck. Oh and also we use PR as an etch mask, so it would be preferable if the etchant was at least somewhat selective against resist.
Any help is greatly appreciated.
Thanks,
Neil Dasgupta
Re: Problem p5000etch SNF 2011-08-27 15:54:19: Chamber C
chamber C.
Monday, August 29, 2011
Comment p5000etch SNF 2011-08-29 14:10:11: Update Ch.C pump
EE PhD Oral Examination - Elizabeth Edwards Friday, Sept. 2, 1pm CISX-AUD
Title: Silicon-Germanium Electroabsorption Modulators for CMOS-Compatible Photonic Integrated Chips
Speaker: Elizabeth Edwards
Advisor: David A. B. Miller
Date: Sept. 2, 2011 (Friday)
Time: 1 PM (Refreshments served at 12:45 PM)
Location: Paul Allen Auditorium (CISX-AUD)
Abstract:
One of the major challenges in the design of future integrated circuits is accommodating the increasing power consumption and bandwidth density of inter- and intra-chip communication links. Replacing wires with optical data links is a viable solution, provided device size and performance criteria are met. The quantum-confined Stark effect (QCSE) in Ge quantum wells (QWs) is a strong, efficient Si-based electro-optic mechanism for modulators operating in the communications band. Using the QCSE in Ge QWs, we have designed and demonstrated surface-normal asymmetric Fabry-Perot and microdisk resonator electroabsorption modulators. Leveraging advancements in SiGe epitaxy grown on silicon and metal contacting techniques, these devices are capable of high-speed, efficient modulation and compact form factors necessary for CMOS process integration.
--
Elizabeth Edwards
PhD Candidate
Dept. of Electrical Engineering
Stanford University
Center for Nanoscale Science and Technology
348 Via Pueblo Mall, Stanford, CA 94305-4088
ehe@stanford.edu
FW: Construction update
Maureen
Maureen Baran
Stanford Nanofabrication Facility
Lab Services Administrator
mbaran@stanford.edu
650-725-3664
Saturday, August 27, 2011
Comment p5000etch SNF 2011-08-27 21:27:40: Load lock pump
Re: Shutdown p5000etch SNF 2011-08-27 11:27:37: Load chamber won't pump down
change.
Shutdown p5000etch SNF 2011-08-27 11:27:37: Load chamber won't pump down
Ch. C is also at atm pressure. Ch. A and B seem ok.
Comment p5000etch SNF 2011-08-27 09:43:20: Chamber C out of order
Friday, August 26, 2011
The New RAITH CHAMPIONS FOR 2011/2012....
Greetings Raith Users, my Stanford Faculty Advisers, and SNF Lab Members:
It is with great pleasure that I introduce the next generation of RAITH Champions for 2011 and 2012.
Raith Champions are experienced Raith 150 users whom have shown great expertise working on the system and have expressed an interest in supporting new and experienced Users on the RAITH150 when needed. Raith Champions are docents for visiting academics and other members of their group whom are not qualified on the tool.
Be sure to thank them for their efforts when helping you!
If you desire to be added to this listing and are a experienced and confident User on the RAITH 150 system all you need to do is start assisting other Raith Users as they start the pathway up the learning curve on this tool. (Please see me during my office hour!)
And the New RAITH Champions are:
Brongersma Group:
Kevin Huang khu834@stanford.edu Coral: khu834 Phone: 408-666-2753
David Gold-Haber Gordon Group:
Georgi Diankov gdiankov@stanford.edu Coral: Gdiankov Phone: 415-690-6003
David Miller Group:
Krishna Balram kcbalram@stanford.edu Coral kcbalram Phone: 650-497-9317
Harris Group:
Altamash altamash@stanford.edu Coral: altamash Phone:
Hesselink’s Group:
Yin Yuen apbubble@stanford.edu or bubble@snf.stanford.edu
Yao-Te Cheng ytcheng@stanford.edu Coral: ytcheng Phone: 650-862-7382
Yuxin Zheng yuxinz@stanford.edu coral: yuxinz Phone: 650-704-5735
Hongjie Dai Group:
Justin Wu justinwu@stanford.edu Coral: justinwu Phone: 408-540-4566
H. S. Phillip Wong Group:
Kyeongran Yoo raneeyoo@stanford.edu Coral: raneeyoo Phone: 650-269-7791
Soogine Chong sgchong@stanford.edu Phone: 650-804-8556
Shan Wang Group:
Donkoun Lee dlee76@stanford.edu Coral: dlee76 Phone: 650-804-4937
Vuckovic Group:
Kelley Rivoire krivoire@stanford.edu Coral: krivoire Phone: 650-575-2010
Arka Majumdar arkam@stanford.edu Coral: arkam Phone: cell 650-906-8666
Gary Shambat gshambat@stanford.edu Coral: gshambat Phone: 703-926-5655 cell
Sonia Buckley soniambuckley@gmail.com Coral: bucklesm Phone: 650-644-9260
Michal Bajcsy bajcsy@stanford.edu Coral: bajcsy Phone: 617-913-2064
Those in BOLD type are our most experienced users currently on the tool.
Thank you for your interest in Ebeam Technologies here at Stanford Nanofabrication Facility.
James Conway
REMINDER - MSE Colloquium and Poster Symposium - TODAY at 3:30PM (Pizza and Drinks after talk)
MSE Undergraduate Research Program Invited Talk
Friday, August 26, 2011
Paul G. Allen Auditorium (CIS-X 101)
Lecture at 3:30PMBioinspired Soft Materials to Direct Stem Cell Function and Tissue Regeneration
Kevin E. Healy
Jan Fandrianto Distinguished Professor in Engineering
Departments of Materials Science and Engineering, and Bioengineering
University of California at Berkeley
Highly regulated signals in the stem cell microenvironment, such as growth factor presentation and concentration, matrix stiffness, and ligand adhesion density have been implicated in modulating stem cell proliferation and maturation. Therefore, it is desirable to have independent control over both the biochemical and mechanical cues presented to cells to analyze their relative and combined effects on stem cell function. Accordingly, we have developed synthetic hydrogels and biointerfaces to assess the effects of adhesion ligand presentation and material moduli spanning physiologically relevant ranges (10 to 10,000 Pa) on stem cell function. Employing these soft materials, we have demonstrated that the mechanical and biochemical properties of a stem cell microenvironment can be tuned to regulate the self-renewal and differentiation of different types of stem cells including human embryonic, neural, and mesenchymal stem cells. We have further modified these tunable biomimetic hydrogels with matrix metalloproteinase labile crosslinkers (e.g. MMP-2, 9 &13), to be used as an assistive microenvironment for transplantation of stem cells into diseased or damaged tissue such as the infracted myocardium. These biomimetic hydrogels provide a foundation for systematic development of "pro-survival" microenvironments for cell transplantation and the potential improvement in the long-term results of regenerative therapies. Various examples from our work will be discussed during this presentation.
MSE Undergraduate Summer Research Poster Symposium
Science and Technology at the Nanoscale
Friday, August 26, 2011
CIS-X Patio
4:30PMAfter the invited talk by Prof. Kevin Healy
Sponsored by the Office of the Vice Provost for Undergraduate Education (VPUE)
* Pizza and drinks will be served*
#
Student Name
Advisor
Project Name
1
Dustin Barfield
N. Melosh
Photon-enhanced Thermionic Emission
2
Jena Barnes
R. Sinclair
FIB and SEM of Nanomaterials
3
Sy Bohy
A. Salleo
Transparent Electrodes and Applications for Al and Ga Doped Zinc Oxide Nanowires
4
Mai Bui
R. Dauskardt
Effect of Sunscreen on UV Damage of Human Stratum Corneum
5
Thomas Carney
Y. Cui
Surface Engineering of SnO Nanofibers for High Capacity Lithium Ion Batteries
6
Alice Che
M. McGehee
Effect of Using Chlorinated ITO for Polymer Solar Cells
7
Kevin Chow
A. Salleo
Ultraviolet Curing Process for Indium Oxide Thin-Film Transistors
8
Ben Cohn
S. Doniach
Simulation of Local-Ordered Glasses to Practice Intensity Correlation Techniques
9
Jo-Ann Deasis
R. Dauskardt
Mechanical Behavior of Macroporous Hybrid Organic-Inorganic Thin Films
10
Justin Doanne
J. Dionne
The Path to Plasmon-Enhanced Upconversion Using Ag Nanoprisms
11
Nick Hartley
A. Lindenberg
Examining Ultrashort Laser Pulses and Photon Emission at Plasma Filament Intersections
12
Olivia Isaac
N. Melosh
Electroporation to Improve Nanostraw Penetration in Cells
13
Pao Jirakulpattana
M. McGehee
Organic Solar Cells
14
Kyle Johnson
S. Heilshorn
Diffusion Characterization of RGD Elastin Hydrogels
15
Zoe Kaufman
P. McIntyre
Annealing Effects on Nano-Structured Ir/TiO2/Si/Al Anode Efficiency
16
Kendrick Kho
W. Nix
Size Dependence of the Mechanical Properties of hcp Zinc Nanopillars
17
Maxwell Kim
S. Heilshorn
Designing a Protein-Engineered, Nanofibrous Scaffold for Tissue Engineering
18
Richard Lee
M. Brongersma
Investigating Si Nanowires for Solar-Driven Water Splitting
19
Janina Motter
B. Cui
Upconversion Nanoparticles for Biological Applications
20
Eric Newton
P. McIntyre
Electrochem. Cell for Photo-Illumination of Nanostructured Anodes for H2O Oxidation
21
Karina Padilla
S. Heilshorn
Biotemplating of 2D and 3D Nanostructures
22
Dieter Rutzen
S. Wang
Magnetic Separation with a Microfabricated Magnetic Sifter
23
Jacob Sander
R. Sinclair
FIB and SEM of Nanomaterials
24
Jacob Smith
S. Wang
Optimization of TiO2 Synthesis for Magnetic Nanoparticle Application
25
Arianna Wee
R. Sinclair
Characterizing Gold Nanoparticles in Macrophages
Chris EarhartActing Assistant Professor
Materials Science & Engineering
Stanford University
496 Lomita Mall, Durand Building, Rm #131
Stanford, CA 94305-4034
Phone: 650-723-1284
Paul Allen Only: Carpet & Floor Cleaning
Carpets & floors will be cleaned on the following days:
2nd floor - August 30th
1st floor - August 31st
All work will start @ 6pm
-- Kenny Green Facilities Services Manager Electrical Engineering 650.724.3310 Office 650.804.2032 Cell
Wednesday, August 24, 2011
Re: Microscope Cameras calibration
Hi All,Does anyone have information of the lab's microscope cameras' calibration?If not, could someone who's there tell me what camera model it is? preferably for the one connected to the computer next to svgdev.Thanks in advance,
--
Edgar A. PeraltaPh.D. Candidate, Stanford UniversityDepartment of Applied PhysicsM: 954.940.2700
Edgar A. Peralta
Microscope Cameras calibration
--
Edgar A. Peralta
Tuesday, August 23, 2011
Fridge door unlocked
Zhiqiang
SNF Rate increase for FY2012
Memo attached.
Grace Wu
Financial and Administrative Manager
Stanford Nanofabrication Facility
Stanford University
Paul G. Allen Building
420 Via Palou Mall, Room# 130
Stanford, CA 94305-4070
Office (650) 724-2909
Fax (650) 723-7300
gracewu@stanford.edu
http://snf.stanford.edu
Confidentiality Notice:
This e-mail transmission, and any documents, files or previous e-mail
messages attached to it, may contain confidential information that is
legally privileged. If you are not the intended recipient, or a person
responsible for delivering it to the intended recipient, you are hereby
notified that any disclosure, copying, distribution or use
of any of the information contained in or attached to this message is
strictly prohibited. If you have received this transmission in error, please
immediately notify me by reply e- mail or by telephone at (650) 724-2909,
and destroy the original transmission and its attachments without reading
them or saving them to disk.
OK to enter the lab, following evacuation
It is now OK to re-enter the lab. Many thanks to maintenance and
facilities staff who stayed to check on their systems.
This is what transpired. At 2:18 pm today, the fire alarms for the
Allen/Annex building sounded and both buildings were evacuated. The
cause was found to be an unstable toxic gas sensor in the occupied area
of a lab in the Annex building. This particular sensor model is prone
to false alarms, particularly when the weather is warm; as part of the
upcoming renovation, these sensors will be replaced with more reliable ones.
But we must all treat all alarms as real. When an alarm sounds, LEAVE
THE LAB through the nearest exit. Continue out the building for fire
alarm. Be aware that any labmember who does not evacuate promptly or
re-enters before the area is cleared will have their lab privileges
revoked. Always remember that your health and safety are more important
than your experiment.
That said, everyone who was inside the cleanroom at the time the alarm
sounded evacuated beautifully (hooray!) Thankfully, this was not a true
emergency -- but it is a reminder that we work in a building with many
hazards and we should take them seriously.
Thanks for your attention --
Your SNF Staff
--
Mary X. Tang, Ph.D.
Stanford Nanofabrication Facility
Paul G. Allen Room 136, Mail Code 4070
Stanford, CA 94305
(650)723-9980
mtang@stanford.edu
http://snf.stanford.edu
Re: probe station trainer
Many people have replied my email and thank you very much. I think I have found the trainer.
Best,
Yongliang
----- Original Message -----
From: "Yongliang Yang" <ylyang@stanford.edu>
To: labmembers@snf.stanford.edu
Sent: Tuesday, August 23, 2011 2:15:13 PM
Subject: probe station trainer
Hi, lab member,
Sorry for interrupting. Is there anyone can tell me who is the probe station trainer? I can not find it on wiki.
Best,
Yongliang
thin metal foil/sheets
100-150 um thick? We only need a small piece, can be less than 1cm x 1cm.
Shibing
--
Shibing Wang, Ph.D.
shibingw@stanford.edu
650-862-3001
probe station trainer
Sorry for interrupting. Is there anyone can tell me who is the probe station trainer? I can not find it on wiki.
Best,
Yongliang
Fwd: NNIN International Winter School: Brazil this year, apply by Sept. 12
We've had a couple of labmembers attend the winter schools in India; this year, it's in Campinas, Brazil. If you're interested, the application information is in the email below from Lynn Rathbun.
Roger Howe
-------- Original Message --------
| Subject: | NNIN International Winter School |
|---|---|
| Date: | Tue, 23 Aug 2011 15:01:22 -0400 |
| From: | Lynn Rathbun <rathbun@cnf.cornell.edu> |
| To: | new NNIN directors:;,nnin nac:; |
NNIN Directors and Lab Managers
This message is both for your information, and a request that you forward it to your entire (academic) user base. And that you encourage especially qualified individuals that you may know to apply.
**************
The NNIN International Winter School for Graduates will be held in Campinas, Brazil , January 8-20, 2012. The iWSG is an international education opportunity combining an intense graduate school level topical course taught by leading US faculty with an international cultural immersion experience. The first week technical course will be on the topic "Nanophotonics". For the second week, the group will travel to developing parts of the host country to experience the environment where technology meets the majority of the world's population, where technology meets the issues of education, power, food, water and sanitation in the real world. The intention is to expose graduate students to the broader impact of technology in society and to both the opportunities and practical limitations.
iWSG was held in three prior years in India. This will be the first iWSG in South America. Application information is available at http://www.nnin.org/nnin_iwsg.html. Applications are due Septemeber 12. Participation is limited to graduate students enrolled in US institutions (US Citizens and Permanent Residents). Approximately 10 outstanding students will be selected.
Please address any questions to Lynn Rathbun, NNIN Program Manager, LCR2@cornell.edu .
******************
Attached please find a small iWSG poster which you may print, post, or distribute.
PLEASE SEND A NOTICE OF iWSG TO ALL YOUR ACADEMIC USERS (inside and outside). Please confirm to me. Also, please encourage specific outstanding individuals to apply.
Lynn
**************************************************************
Dr. Lynn Rathbun
NNIN Program Manager
CNF Laboratory Manager
Duffield Hall (607)-255-8601 Fax
Cornell University (607)-592-1549 Work Cell
Ithaca, New York 14853
Monday, August 22, 2011
MSE Colloquium and Undergraduate Poster Symposium - Fri, Aug 26 at 3:30PM
MSE Undergraduate Research Program Invited Talk
Friday, August 26, 2011
Paul G. Allen Auditorium (CIS-X 101)
Lecture at 3:30PM
Bioinspired Soft Materials to Direct Stem Cell Function and Tissue Regeneration
Kevin E. Healy
Jan Fandrianto Distinguished Professor in Engineering
Departments of Materials Science and Engineering, and Bioengineering
University of California at Berkeley
Highly regulated signals in the stem cell microenvironment, such as growth factor presentation and concentration, matrix stiffness, and ligand adhesion density have been implicated in modulating stem cell proliferation and maturation. Therefore, it is desirable to have independent control over both the biochemical and mechanical cues presented to cells to analyze their relative and combined effects on stem cell function. Accordingly, we have developed synthetic hydrogels and biointerfaces to assess the effects of adhesion ligand presentation and material moduli spanning physiologically relevant ranges (10 to 10,000 Pa) on stem cell function. Employing these soft materials, we have demonstrated that the mechanical and biochemical properties of a stem cell microenvironment can be tuned to regulate the self-renewal and differentiation of different types of stem cells including human embryonic, neural, and mesenchymal stem cells. We have further modified these tunable biomimetic hydrogels with matrix metalloproteinase labile crosslinkers (e.g. MMP-2, 9 &13), to be used as an assistive microenvironment for transplantation of stem cells into diseased or damaged tissue such as the infracted myocardium. These biomimetic hydrogels provide a foundation for systematic development of "pro-survival" microenvironments for cell transplantation and the potential improvement in the long-term results of regenerative therapies. Various examples from our work will be discussed during this presentation.
MSE Undergraduate Summer Research Poster Symposium
Science and Technology at the Nanoscale
Friday, August 26, 2011
CIS-X Patio
4:30PM
After the invited talk by Prof. Kevin Healy
Sponsored by the Office of the Vice Provost for Undergraduate Education (VPUE)
* Pizza and drinks will be served*
| # | Student Name | Advisor | Project Name |
| 1 | Dustin Barfield | N. Melosh | Photon-enhanced Thermionic Emission |
| 2 | Jena Barnes | R. Sinclair | FIB and SEM of Nanomaterials |
| 3 | Sy Bohy | A. Salleo | Transparent Electrodes and Applications for Al and Ga Doped Zinc Oxide Nanowires |
| 4 | Mai Bui | R. Dauskardt | Effect of Sunscreen on UV Damage of Human Stratum Corneum |
| 5 | Thomas Carney | Y. Cui | Surface Engineering of SnO Nanofibers for High Capacity Lithium Ion Batteries |
| 6 | Alice Che | M. McGehee | Effect of Using Chlorinated ITO for Polymer Solar Cells |
| 7 | Kevin Chow | A. Salleo | Ultraviolet Curing Process for Indium Oxide Thin-Film Transistors |
| 8 | Ben Cohn | S. Doniach | Simulation of Local-Ordered Glasses to Practice Intensity Correlation Techniques |
| 9 | Jo-Ann Deasis | R. Dauskardt | Mechanical Behavior of Macroporous Hybrid Organic-Inorganic Thin Films |
| 10 | Justin Doanne | J. Dionne | The Path to Plasmon-Enhanced Upconversion Using Ag Nanoprisms |
| 11 | Nick Hartley | A. Lindenberg | Examining Ultrashort Laser Pulses and Photon Emission at Plasma Filament Intersections |
| 12 | Olivia Isaac | N. Melosh | Electroporation to Improve Nanostraw Penetration in Cells |
| 13 | Pao Jirakulpattana | M. McGehee | Organic Solar Cells |
| 14 | Kyle Johnson | S. Heilshorn | Diffusion Characterization of RGD Elastin Hydrogels |
| 15 | Zoe Kaufman | P. McIntyre | Annealing Effects on Nano-Structured Ir/TiO2/Si/Al Anode Efficiency |
| 16 | Kendrick Kho | W. Nix | Size Dependence of the Mechanical Properties of hcp Zinc Nanopillars |
| 17 | Maxwell Kim | S. Heilshorn | Designing a Protein-Engineered, Nanofibrous Scaffold for Tissue Engineering |
| 18 | Richard Lee | M. Brongersma | Investigating Si Nanowires for Solar-Driven Water Splitting |
| 19 | Janina Motter | B. Cui | Upconversion Nanoparticles for Biological Applications |
| 20 | Eric Newton | P. McIntyre | Electrochem. Cell for Photo-Illumination of Nanostructured Anodes for H2O Oxidation |
| 21 | Karina Padilla | S. Heilshorn | Biotemplating of 2D and 3D Nanostructures |
| 22 | Dieter Rutzen | S. Wang | Magnetic Separation with a Microfabricated Magnetic Sifter |
| 23 | Jacob Sander | R. Sinclair | FIB and SEM of Nanomaterials |
| 24 | Jacob Smith | S. Wang | Optimization of TiO2 Synthesis for Magnetic Nanoparticle Application |
| 25 | Arianna Wee | R. Sinclair | Characterizing Gold Nanoparticles in Macrophages
|
Materials Science & Engineering
Stanford University
496 Lomita Mall, Durand Building, Rm #131
Stanford, CA 94305-4034
Phone: 650-723-1284