M
Madhavi R. Chandrachood
Researcher at Applied Materials
Publications - 55
Citations - 1016
Madhavi R. Chandrachood is an academic researcher from Applied Materials. The author has contributed to research in topics: Etching (microfabrication) & Photomask. The author has an hindex of 15, co-authored 55 publications receiving 1015 citations.
Papers
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Patent
Method and apparatus for photomask plasma etching
Ashok Kumar,Madhavi R. Chandrachood,Richard Lewington,Darin Bivens,Amitabh Sabharwal,Sheeba J. Panayil,Alan Ouye +6 more
TL;DR: In this article, a method and apparatus for etching photomasks is described, which comprises a process chamber having a support pedestal adapted for receiving a photomask, an ion neutral shield is disposed above the pedestal and a deflector plate assembly is provided above the ion-neutral shield.
Patent
Method for plasma etching a chromium layer suitable for photomask fabrication
Xiaoyi Chen,Michael N. Grimbergen,Madhavi R. Chandrachood,Jeffrey X. Tran,Ashok Kumar,Simon W. Tam,Ramesh Krishnamurthy +6 more
TL;DR: In this paper, a method for etching a chromium layer is described, which is particularly suitable for fabricating photomasks and can be used for plasma etching of chromium layers.
Patent
Process for etching a metal layer suitable for use in photomask fabrication
TL;DR: In this paper, a method and apparatus for etching a metal layer disposed on a substrate, such as a photolithographic reticle, is provided and a method is provided for processing a substrate including positioning a substrate having a metal-layer disposed on an optically transparent material in a processing chamber, introducing a processing gas processing gas comprising an oxygen containing gas, a chlorine containing gas and a chlorine-free halogen containing gas.
Patent
Mask etch plasma reactor with cathode providing a uniform distribution of etch rate
Richard Lewington,Michael N. Grimbergen,Khiem K. Nguyen,Darin Bivens,Madhavi R. Chandrachood,Ajay Kumar +5 more
TL;DR: In this paper, a plasma reactor for etching a workpiece such as a rectangular or square mask is described, which includes a vacuum chamber having a ceiling and a sidewall and a wafer support pedestal within the chamber, the surface comprising plural respective zones, the respective zones of the surface being formed of respective materials of different electrical characteristics.
Patent
Methods and apparatus for reducing particle contamination during wafer transport
TL;DR: In this article, a preheated substrate is transferred from the preheater to a buffer region having a pressure therein that is between about two (2) and about seven hundred and sixty (760) Torr.