1 Small Feature Reproducibility 11899 SFR Workshop Overview

1 Small Feature Reproducibility 11/8/99 SFR Workshop - Overview

2 Small Feature Reproducibility Measuring, Understanding and Controlling Variability in deep sub-micron patterning UC-SMART Major Program Award E. Aydil, J. Bokor, N. Cheung, D. Dornfeld, B. Dunn, D. Graves, E. Haller, M. Lieberman, A. Neureuther, K. Poolla, R. Smith, O. Solgaard C. Spanos University of California Berkeley, Davis, Los Angeles, Santa Barbara 11/8/99 SFR Workshop - Overview

3 Program Goals • Cultivate a new discipline that focuses on the reproducibility of small features. • Pursue solutions by focusing on: – fundamental understanding – modeling variability mechanisms – sensing variability causes during production • Our context is lithography, plasma, CMP, diffusion, and the way these steps interact with each other. 11/8/99 SFR Workshop - Overview

4 Target Technologies • • • Lithography 193 / 157 / 14 nm (0. 18 mm - 0. 05 mm) Plasma and Reactive Ion Etching Chemical Mechanical Polishing Transient Enhanced Diffusion Sensors and Metrology for the above 11/8/99 SFR Workshop - Overview

5 Small Feature Reproducibility • Capture – In-situ and off-line metrology – Hierarchical Analysis of Variance • Understand – Resist, Plasma, Diffusion Modeling – Variability Impact on Device / Interconnect Performance • Control – – on-wafer / real-time / in-situ sensors run-to-run and real-time control process diagnosis chamber, process and product design 11/8/99 SFR Workshop - Overview

6 Major Program Thrusts Lithography TED Plasma Etching SFR Sensor Integration 11/8/99 Education CMP SFR Workshop - Overview

7 Changes since May, 1999 • Professor Eugene Haller (UCB) joined us to work on transient enhanced diffusion in the second year. • Professor Tsue-Jae King (UCB) helped us re-design the major undergraduate processing class. • Professor Eray Aydil (UCSB) joined us to work on in -chamber plasma sensors. • Aplex left the group (and the business), Nanometrics joined the group. • The 6 -inch conversion for the Berkeley Microlab has been funded by other means and is on its way. 11/8/99 SFR Workshop - Overview

8 Industrial Relations • Held two workshops (11/17/98 and 11/8/99), annual review (5/13/99). • Established industrial mentors, 15 -member steering committee. • Opened bi-weekly seminars to industry via the Web. • Our “interactions” database captures broad interactions since the beginning of this program. 11/8/99 SFR Workshop - Overview

9 Technology Transfer • Many visits, discussions, presentations. – Bi-weekly seminar regularly attended by project mentors via simulcast on our web site. • Timbre Technology, winner of Haas business plan competition, received seed funding. – Auto calibration of lithography simulators. – Scatterometry based profile reconstruction. • Autonomous Wafer Sensors (AWS) – Autonomous / modular temperature measurement wafers. – Plasma temperature metrology (>40 sensors/wafer, >1 Hz full field monitoring, new capabilities). 11/8/99 SFR Workshop - Overview

10 Highlights. . . • Our second year has been approved by the state, after a successful first year report in September 1999. • Bi-weekly teleconferencing seminars continue with technical talks this semester. • ~30 graduate students, 12 Professors, 4 UC campuses – – – SOPRA Spectroscopic Ellipsometer CMP Cleaner CMP in place New P 5000 identified at Intel, refurbished by AMAT MR 2 substituted with M 2 I, received from Novellus last week. New room completed. – 6 -inch conversion under way – New teaching lab operational! 11/8/99 SFR Workshop - Overview

11 http: //sfr/berkeley. edu Depository for • publications • resumes • project database • meeting agendas • demonstrations • posters • presentations New software for presenting inter-campus, inter-industry, interactive, technical seminars. 11/8/99 SFR Workshop - Overview

12 http: //sfr. berkeley. edu 11/8/99 SFR Workshop - Overview

13 Today’s Objectives 1. Present and discuss Progress. 2. Discuss 2000 -2002 ideas. Two year extension proposal due late spring 2000. 3. Bring, PIs, students, industrial participants together. 11/8/99 SFR Workshop - Overview

14 Plans for 2000 renewal The theme for 1998 -2000 was: “how to measure, understand model small feature reproducibility”. The theme for 2000 -2002 might be: “why reproducibility matters and how to control it” 11/8/99 SFR Workshop - Overview

15 What really limits these numbers? ITRS Conference 7/99 11/8/99 SFR Workshop - Overview

16 CD Metrology will need a (R)evolution. . . ITRS Conference 7/99 11/8/99 SFR Workshop - Overview

17 General Reproducibility Model Circuit performance model, predict and improve CD, thin films measure and model Fundamental causes optics, chemistry, etc. model and understand 11/8/99 SFR Workshop - Overview

18 People to Meet and Places to Go Web site, etc. Account Management Administrative Support Timothy D. Duncan Brad Dexter Debra Krauss 524 Cory Hall, CSG phone: (510) 643 -7542 fax: (510) 642 -2739 tduncan@eecs. berkeley. edu 558 Cory Hall, ERL phone: (510) 643 -6680 fax: (510) 643 -5052 bdexter@eecs. berkeley. edu 558 Cory Hall, ERL phone: (510) 643 -9705 fax: (510) 642 -2739 debrak@eecs. berkeley. edu University of California, Berkeley CA, 94720 -1770 http: //sfr. berkeley. edu Access restricted by password. 11/8/99 SFR Workshop - Overview

19 2 st Annual SFR Workshop, November 8, 1999 8: 30 – 9: 00 – 10: 15 – 10: 45 – 12: 00 – 1: 00 – 2: 15 – 2: 45 – 3: 30 – 3: 45 – 5: 30 – 7: 30 11/8/99 Introductions, Overview / Spanos Lithography / Spanos, Neureuther, Bokor Break Sensor Integration / Poolla, Smith, Solgaard, Dunn lunch, poster session begins Plasma, TED / Graves, Lieberman, Cheung, Aydil, Haller CMP / Dornfeld Education / Graves, King, Spanos Break Steering Committee Meeting in room 775 A / Lozes Reception, Dinner / Heynes rm, Men’s Faculty Club SFR Workshop - Overview