From xjiang at stanford.edu Mon Dec 1 08:56:31 2003 From: xjiang at stanford.edu (Xin Jiang) Date: Mon, 1 Dec 2003 08:56:31 -0800 (PST) Subject: FWD: Univ. PhD Dissertation Defense/Xin Jiang Message-ID: DEPARTMENT OF APPLIED PHYSICS UNIVERSITY PhD DISSERTATION DEFENSE ********************************************************** Speaker: Xin Jiang (Research Advisor: Professor J. Harris) Title: Tunnel Spin Injectors For Semiconductor Spintronics Date: 4 December, 2003 Time: 9:00 a.m. Place: CIS-X Auditorium ********************************************************* ABSTRACT Spin-based electronics, often referred to as "spintronics", is a research field of intense current interest, which aims to develop novel sensor, memory and logic devices by manipulating the spin states of electrons or holes in semiconducting materials. This talk will focus on electrical spin injection into semiconductors, which is a prerequisite for spintronics and, in particular, on tunnel based spin injectors operable above room temperature. Two types of spin injectors are discussed: a magnetic tunnel transistor (MTT) injector and a magnetic tunnel injector formed from CoFe/MgO. The MTT is a three terminal device comprised of a metal emitter and a metal base, separated by an insulating tunnel barrier, and a semiconductor collector: in this talk the base contains ferromagnetic materials and the emitter is formed from either non-magnetic Cu or ferromagnetic CoFe. The MTT is a hot electron device operating at electron energies of ~1-3 eV above the Fermi level. Due to spin-dependent electron scattering in the base region, the collector current of the MTT is highly spin-polarized, as demonstrated by a magneto-current of more than 3400%. The basic concept and transport properties of the MTT will be discussed and will be compared with the properties of a simpler two terminal tunnel injector device comprised of a ferromagnetic CoFe emitter and a novel MgO tunnel barrier. A quantum well light emitting diode structure is used to detect the spin polarization of the injected electron current within the semiconductor. The electron spin polarization is determined optically by measuring the circular polarization of the electroluminescence (EL) from the quantum well when the spin-polarized electrons recombine with unpolarized holes. Using an MTT injector a spin polarization of ~10% is found for an injection electron energy of ~2 eV at 1.4 K. This moderate spin polarization is most likely limited by significant electron spin relaxation at high energy. Much higher spin injection efficiency is found using the CoFe/MgO tunnel injector with spin polarization values of ~50% at 100K. The temperature and bias dependence of the EL polarization provides insight into spin relaxation mechanisms within the semiconductor. ********************************************************* DEPARTMENT OF APPLIED PHYSICS UNIVERSITY PhD DISSERTATION DEFENSE From michael.bell at stanford.edu Tue Dec 2 15:48:13 2003 From: michael.bell at stanford.edu (Michael Bell) Date: Tue, 2 Dec 2003 15:48:13 -0800 Subject: Coral scheduled downtime 12/3/2003 8:30 AM Message-ID: Lab members, Coral will be down for 3 hours tomorrow, 12/3/2003, from 8:30 AM to 11:30 AM for servers maintenance. We apologize for any inconvenience this may cause. Regards, Mike Bell SNF staff From mtang at snf.stanford.edu Thu Dec 4 16:42:27 2003 From: mtang at snf.stanford.edu (Mary Tang) Date: Thu, 04 Dec 2003 16:42:27 -0800 Subject: Lab Cleanup for Shutdown Message-ID: <3FCFD473.8950D7F8@snf.stanford.edu> Greetings labmembers -- Just a reminder for old-timers and announcement for newbies... There will be a lab cleanup coinciding with the shutdown. There will be much work done by our industrious maintenance and facilities folks during the shutdown while the rest of us are (guiltily) enjoying our time off. Things will be moved around, tables and shelves will be covered. In deference to our friends in maintenance and facilities, everything must be cleared off surfaces. Please think of this as a great opportunity to start the new year fresh. So, we ask the following. By Thursday, December 18: 1. Please store ALL personal items in your lab bin or remove them from the lab. This includes cassette boxes, wafer boxes, wafer carriers, "tool" boxes and any other personal labware or other items. PLEASE CLEAR "WIP" SHELVES! Any items left outside of personal bins on Friday, Dec. 19, may be reclaimed for community use. (Remember, there is plenty of storage available just outside the lab, in the CAD room.) 2. Please remove personal belongings from your gowning room hanger and place your bunnysuit into the laundry when you are done for the year. All bunnysuits will be collected for laundry on Friday, Dec. 19. Any personal items (lab glasses, etc.) left on hangers may be reclaimed for community use. Thanks for your attention, Your SNF staff, at your service -- Mary X. Tang, Ph.D. National Nanofabrication Users' Network Stanford Nanofabrication Facility CIS Room 136, Mail Code 4070 Stanford, CA 94305 (650)723-9980 mtang at stanford.edu http://snf.stanford.edu From mahnaz at snf.stanford.edu Wed Dec 10 11:22:53 2003 From: mahnaz at snf.stanford.edu (Mahnaz Mansourpour) Date: Wed, 10 Dec 2003 11:22:53 -0800 Subject: 115 C hot plate Message-ID: <3FD7728D.D9913E9B@snf.stanford.edu> Hello all, We found the 115C hot plate ( across from karl suss) reading 160 c. The two hot plates in the middle are set at 90 c ( soft bake ) and 115 C ( PEB) . The note on both hot plates says Do NOT TOUCH so please do not touch!! We have the knobs secured by tape so I am not sure how to go about this ( any idea ?) The other two hot plates on the same bench may be adjusted for different temperature ( use these two for different temp setting). mahnaz From vlordi at stanford.edu Wed Dec 10 17:36:41 2003 From: vlordi at stanford.edu (Vincenzo Lordi) Date: Wed, 10 Dec 2003 17:36:41 -0800 Subject: Cingular wireless in the lab Message-ID: Hi, sorry to spam everyone, but I was wondering what kind of experiences people have had with Cingular wireless in and around the SNF Lab? I am thinking about switching from Sprint, which has horrible reception in much of CIS. Thanks, -Vince From SamS at LSInc.biz Thu Dec 11 10:32:06 2003 From: SamS at LSInc.biz (Samuel B. Schaevitz) Date: Thu, 11 Dec 2003 10:32:06 -0800 Subject: Another CellPhone Question: AT&T GSM network Message-ID: <5.2.1.1.2.20031211102659.021d7600@pop.lilliputiansystemsinc.com> Hey Guys, Sorry to bother everyone as well. Does anyone have a AT&T phone which is GSM (not TDMA) that they use in the lab? How is the service? Thanks, Sam ------------------------------------------------------ Samuel B. Schaevitz Lilliputian Systems, Inc. 46560 Fremont Blvd, Suite 419 Fremont, CA 94538 Cell: 617 543-5875 Office: 510 656-5999 Fax: 510 656-4999 Corporate Headquarters 25-K Olympia Ave, Suite 100 Woburn, MA 01801 Tel: 781 935-9777 Fax: 781 935-0666 From smalekos at unr.nevada.edu Thu Dec 11 11:53:47 2003 From: smalekos at unr.nevada.edu (smalekos at unr.nevada.edu) Date: Thu, 11 Dec 2003 11:53:47 -0800 Subject: question about Moly Message-ID: <1071172427.3fd8cb4bea5fc@webmail.scsr.nevada.edu> Hello all, I am interested in etching into a 100nm moly-coated Si wafer. The mask is defined using scanning probe lithography (PMMA), and I am curious if there is a good wet-etch technique that will etch into the moly and not the PMMA. The Nitric/Hydrofluoric/H2O mixture is a little too nasty for me, and it will rip right through the PMMA. If anyone might have an idea (wet or dry etch), without having to do too many layers, it would be greatly appreciated. Thank you, Steven From eadensaw at hotmail.com Thu Dec 11 21:37:41 2003 From: eadensaw at hotmail.com (Eaden Saw) Date: Thu, 11 Dec 2003 21:37:41 -0800 Subject: Fw: NATEA-SV Annual Meeting Features Deputy Representative Michael MIng-Shian Tsai, and MEMS/Nano Forum Message-ID: NATEA-SV Annual Meeting and MEMS/Nano Forum Dear lab members: On behalf of NATEA, I would like to extend an invitation to you to the annual meeting of NATEA-SV on Sunday, 12/14 from 2:30 pm to 10:00 pm at Ming's restaurant of Palo Alto. The afternoon technical forum is themed: Frontier of MEMS and Nanotechnology. We are proud to invite three prominent speakers to share their precious knowledge in RF MEMS, MEMS packaging, InJet Nanotechnology and 3-D MEMS. The fee for the afternoon session is free for public if pre-registered. On-site registration fee will be $5.00. The Keynotes speaker is Honorable Deputy Representative Of Taiwan( TECRO), Michael Ming-Shian Tsai. We will also invite many local dignitaries and community leaders to join the celebration for the accomplishment of NATEA- 2003. Students from Stanford, UCB and San Jose State are also invited to come meeting the community. The dinner program is $25 each for general public and $5.00 only for students and postdocs. All events will be conducted in English. Please register on line at http://www.natea.org/event_reg/am2003.php If you are interested in attending the event. I am looking forward to meeting you there!! SIncerely, Eaden Saw, Ph.D. President, NATEA-SV (408) 464-2898 --------------------------------------------------------------------------------------------------------------------------------------------------------- NATEA-Silicon Valley Chapter Annual Meeting Date: Sunday, December 14th, 2003 2:30 pm to 10:00 pm Where: Ming??s Restaurant, 1700 Embarcadero Rd. Palo Alto Fee: Technical Forum: $5 on-site, Free pre-registered Dinner: $30 on-site, $25 pre-registered Registration: www.natea.org or call 510-656-1002 2:30 pm - 3:00 pm: Registration and Networking 3:00 pm to 5:30 pm: Technical Forum Frontier of MEMS and Nanotechnology RF MEMS and MEMS packaging Michael Cohn, CEO, MicroAssembly Nano-particles in Ink-jet Printing Technologies and Their Applications Bob Lin, President, IJP Solutions 3D, Direct-Write, Glass-Ceramic Micro-Manufacturing Rick Casler, VP Business Development, Invenios, Inc. 5:30 pm to 6:15 pm: Registration and Networking 6:15 pm-10:00 pm: Dinner Program Board Election, President Transition, Prize Drawing and more Keynote Speakers: Deputy Representative Dr. Michael Ming-Shian Tsai Taipei Economic and Cultural Representative Office in the United States Dr. Tsai is the number two top Taiwanese official in US. Prior to this position, Dr. Tsai has been in the following positions in Taiwan. 1.. Legislator (02.1996-01.2002). Chairman and Member of National Defense Committee of Legislative Yuan.(1996-2002) 2.. Chairman on Defense Affairs and Policy Research Committee, Democratic Progressive Party (DPP). 3.. Advisor of Defense Organization, Research and Planning Committee, Dept. of Defense. 4.. Chairman, Tai-yuan Cultural and Educational Foundation. 5.. Professor of law, National Taichung College of Polytechnology. 6.. Publisher of Journal of Taiwan Defense Affairs. Dr. Tsai received L.L.B, National Taiwan University, 1963.; M.B.A, University Wisconsin, 1972; and J.D., California Western School of Law, 1989. Technical Forum Speakers:? Bio: RF MEMS and MEMS packaging Michael Cohn, CEO, MicroAssembly Michael Cohn obtained the Ph.D. in EECS in 1997 at the University of California, Berkeley. He performed his thesis research at the Berkeley Sensor & Actuator Center, in the area of MEMS packaging. Since 1998, he has served as CEO of MicroAssembly Technologies. His primary interests include micro-packaging and batch assembly techniques, with an emphasis on RF microsystems. Nano-particles in Ink-jet Printing Technologies and Their Applications Bob Lin, President, IJP Solutions An-Chung Robert (Bob) Lin, Ph.D. has been the president of IJP Solutions since its inception in 2002. He was a member of the Technical Staff and Project Leader in HP-Labs of Hewlett-Packard (HP) Company. While at HP, Bob was in charge of developing ink-jet inks and other areas related to the printing technology. Bob has authored numerous technical papers and is the holder of 33 US patents (more than 100 international). Bob was an invited speaker in numerous conferences/meetings such as Technical Advisory Committee (TAC)-Industrial Technology Research Institute, DIPC (Digital Image Printing Conference), Digital Image Printing Technologies in Multimedia Symposium, Bis Strategic Decision of Ink Jet Printing Technologies Conference etc. 3D, Direct-Write, Glass-Ceramic Micro-Manufacturing Rick Casler, VP Business Development, Invenios, Inc. Rick Casler is a mechanical engineer (BS/MSME MIT) with over fifteen years as an engineering executive driving innovations in the industrial robot, robot guidance, and motion control arenas. Rick??s product development teams at Unimation/Westinghouse, Genesis Automation, and Adept Technology have developed and commercialized disruptive mechanical, drive, and controls technologies that have led to major advances in the throughput, precision and footprint of flexible robotic components and assembly systems. Over the past twenty years, Rick has focused his efforts on the development and commercialization of systems on an ever-decreasing scale. Rick now serves as the Vice President of Business Development at Invenios Inc. where he is pursuing his passion-leading commercialization of a disruptive 3-D MEMS process that soon will be applied to the creation of robots, built on the micron scale, for use in advanced nanofabrication and assembly applications. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: NATEA-SV 2003 Annual Meeting.doc Type: application/msword Size: 44032 bytes Desc: not available URL: From grupp at snowmass.Stanford.EDU Fri Dec 12 11:33:53 2003 From: grupp at snowmass.Stanford.EDU (Dan Grupp) Date: Fri, 12 Dec 2003 11:33:53 -0800 (PST) Subject: ELTRAN contact Message-ID: Hello, Does anyone have a contact at ELTRAN other than the front desk? Sales or R&D? Thanks, Dan --------------------------------------------------------------------------- Dr. Daniel Grupp, Visiting Scholar Center for Integrated Systems Stanford University Stanford, CA 94305 (650) 724-6911 FAX: 723-4659 --------------------------------------------------------------------------- From mtang at snf.stanford.edu Wed Dec 17 07:48:54 2003 From: mtang at snf.stanford.edu (Mary Tang) Date: Wed, 17 Dec 2003 07:48:54 -0800 Subject: Annual Lab Cleanup! Message-ID: <3FE07AE6.E24CA19C@snf.stanford.edu> Hey folks -- Just another reminder of the annual lab cleanup, which will commence on on Friday, Dec. 19. 1. Any items found outside a personal storage lab bin will be removed from the lab. This includes wafer boxes on WIP shelves (or anywhere else outside a lab bin.) 2. Bunnysuits will be laundered. Any personal items attached to hangers or suits will be removed. Removed items will be placed in a temporary holding area. Any unclaimed items may be discarded or donated to the "community chest" (the winning "donation" last year was a brand new box of AFM tips, with honorable mentions to several boxes of prime wafers, including one complete box of double-polished wafers and half-box of sapphire... Though the "donations" are much appreciated, I think we'd all much prefer the capital equipment sort...) 3. Emails were sent out (in Nov. and Dec.) to individuals who have kept lab bins, but have not been in the lab for several months. If you haven't gotten back to me, the contents of your lab bin may be subject to removal during cleanup, as needed to accomodate new bin requests. 4. If you requested and are waiting for a new lab bin, you should receive a bin assignment soon, or the first week in Jan at the latest. Happy holidays! Mary -- Mary X. Tang, Ph.D. National Nanofabrication Users' Network Stanford Nanofabrication Facility CIS Room 136, Mail Code 4070 Stanford, CA 94305 (650)723-9980 mtang at stanford.edu http://snf.stanford.edu From vigneshg at stanford.edu Wed Dec 17 22:00:52 2003 From: vigneshg at stanford.edu (Vignesh G) Date: Wed, 17 Dec 2003 22:00:52 -0800 Subject: Amorphous Si info In-Reply-To: <3FE07AE6.E24CA19C@snf.stanford.edu> Message-ID: <5.1.1.5.2.20031217215707.019cc728@vigneshg.pobox.stanford.edu> Hi, I am looking for some information on amorphous Si. Anyone who has any info on the following, please do reply to me: 1) What are the absolute values of the conduction and valence band edges (with ref. to the vacuum level) ? 2) What is the band gap (the number I have is 1.6eV, is that about right) ? 3) How can one grow / deposit amorphous Si (in general and in SNF). Thanks. - Vignesh. PS: Have a good holiday season. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Vignesh G. Shankar PhD Candidate in Materials Science and Engineering Stanford University -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -------------- next part -------------- An HTML attachment was scrubbed... URL: From mahnaz at snf.stanford.edu Thu Dec 18 08:28:49 2003 From: mahnaz at snf.stanford.edu (Mahnaz Mansourpour) Date: Thu, 18 Dec 2003 08:28:49 -0800 Subject: [Fwd: 220-7] Message-ID: <3FE1D5C1.D6646212@snf.stanford.edu> Just a kind reminder mahnaz -------------- next part -------------- An embedded message was scrubbed... From: Mahnaz Mansourpour Subject: 220-7 Date: Fri, 12 Dec 2003 15:23:52 -0800 Size: 1250 URL: From rcrane at snf.stanford.edu Thu Dec 18 10:21:29 2003 From: rcrane at snf.stanford.edu (Dick Crane) Date: Thu, 18 Dec 2003 10:21:29 -0800 Subject: Reminder, fab shut down Message-ID: <3FE1F029.3C51A53C@snf.stanford.edu> Fab users, Happy holiday and breaktime to you all. This is a kind reminder that the fab is shutting down for its annual maintenance marathon. The fab closes at 0700 on Friday, December 19. All users need to be out of the fab by then. The fab reopens for use at 1600 on Monday, January 5. Staff will be requalifying equipment during the day and we will have 80-90% of the tools ready for use by 1600. Watch for tool status on Coral. CIS and CISX building will be officially closed for the 12/19-1/5 break. There will be no heating, janitorial services, staff services, mail and package delivery services and the building will be locked. The receiving area is not available for parking. Any vehicles locked in will need to be recovered through police services or left overnight. Please don't park there. A, C, and Z parking lot permit enforcement will be suspended during the break (fire zone and handicap areas excluded). Thanks, Dick -------------- next part -------------- An HTML attachment was scrubbed... URL: