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Title: Advanced process control and novel test methods for PVD silicon and elastomeric silicone coatings utilized on ion implant disks, heatsinks and selected platens

Abstract

Coatings play multiple key roles in the proper functioning of mature and current ion implanters. Batch and serial implanters require strategic control of elemental and particulate contamination which often includes scrutiny of the silicon surface coatings encountering direct beam contact. Elastomeric Silicone Coatings must accommodate wafer loading and unloading as well as direct backside contact during implant plus must maintain rigid elemental and particulate specifications. The semiconductor industry has had a significant and continuous effort to obtain ultra-pure silicon coatings with sustained process performance and long life. Low particles and reduced elemental levels for silicon coatings are a major requirement for process engineers, OEM manufacturers, and second source suppliers. Relevant data will be presented. Some emphasis and detail will be placed on the structure and characteristics of a relatively new PVD Silicon Coating process that is very dense and homogeneous. Wear rate under typical ion beam test conditions will be discussed. The PVD Silicon Coating that will be presented here is used on disk shields, wafer handling fingers/fences, exclusion zones of heat sinks, beam dumps and other beamline components. Older, legacy implanters can now provide extended process capability using this new generation PVD silicon - even on implanter systems thatmore » were shipped long before the advent of silicon coating for contamination control. Low particles and reduced elemental levels are critical performance criteria for the silicone elastomers used on disk heatsinks and serial implanter platens. Novel evaluation techniques and custom engineered tools are used to investigate the surface interaction characteristics of multiple Elastomeric Silicone Coatings currently in use by the industry - specifically, friction and perpendicular stiction. These parameters are presented as methods to investigate the critical wafer load and unload function. Unique tools and test methods have been developed that deliver accurate and repeatable data, which will be described.« less

Authors:
; ; ; ;  [1];  [2];  [2]
  1. Core Systems, 1050 Kifer Road Sunnyvale, CA 94086 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
22075714
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1496; Journal Issue: 1; Conference: 19. international conference on ion implantation technology, Valladolid (Spain), 25-29 Jun 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COATINGS; FRICTION; ION BEAMS; ION IMPLANTATION; PERFORMANCE; PHYSICAL VAPOR DEPOSITION; SEMICONDUCTOR DEVICES; SEMICONDUCTOR MATERIALS; SILICON; SILICONES; SURFACES; WEAR

Citation Formats

Springer, J., Allen, B., Wriggins, W., Kuzbyt, R., Sinclair, R., FI Silicon, 1050 Kifer Road Sunnyvale, CA 94086, and Core Systems, 1050 Kifer Road Sunnyvale, CA 94086. Advanced process control and novel test methods for PVD silicon and elastomeric silicone coatings utilized on ion implant disks, heatsinks and selected platens. United States: N. p., 2012. Web. doi:10.1063/1.4766553.
Springer, J., Allen, B., Wriggins, W., Kuzbyt, R., Sinclair, R., FI Silicon, 1050 Kifer Road Sunnyvale, CA 94086, & Core Systems, 1050 Kifer Road Sunnyvale, CA 94086. Advanced process control and novel test methods for PVD silicon and elastomeric silicone coatings utilized on ion implant disks, heatsinks and selected platens. United States. doi:10.1063/1.4766553.
Springer, J., Allen, B., Wriggins, W., Kuzbyt, R., Sinclair, R., FI Silicon, 1050 Kifer Road Sunnyvale, CA 94086, and Core Systems, 1050 Kifer Road Sunnyvale, CA 94086. Tue . "Advanced process control and novel test methods for PVD silicon and elastomeric silicone coatings utilized on ion implant disks, heatsinks and selected platens". United States. doi:10.1063/1.4766553.
@article{osti_22075714,
title = {Advanced process control and novel test methods for PVD silicon and elastomeric silicone coatings utilized on ion implant disks, heatsinks and selected platens},
author = {Springer, J. and Allen, B. and Wriggins, W. and Kuzbyt, R. and Sinclair, R. and FI Silicon, 1050 Kifer Road Sunnyvale, CA 94086 and Core Systems, 1050 Kifer Road Sunnyvale, CA 94086},
abstractNote = {Coatings play multiple key roles in the proper functioning of mature and current ion implanters. Batch and serial implanters require strategic control of elemental and particulate contamination which often includes scrutiny of the silicon surface coatings encountering direct beam contact. Elastomeric Silicone Coatings must accommodate wafer loading and unloading as well as direct backside contact during implant plus must maintain rigid elemental and particulate specifications. The semiconductor industry has had a significant and continuous effort to obtain ultra-pure silicon coatings with sustained process performance and long life. Low particles and reduced elemental levels for silicon coatings are a major requirement for process engineers, OEM manufacturers, and second source suppliers. Relevant data will be presented. Some emphasis and detail will be placed on the structure and characteristics of a relatively new PVD Silicon Coating process that is very dense and homogeneous. Wear rate under typical ion beam test conditions will be discussed. The PVD Silicon Coating that will be presented here is used on disk shields, wafer handling fingers/fences, exclusion zones of heat sinks, beam dumps and other beamline components. Older, legacy implanters can now provide extended process capability using this new generation PVD silicon - even on implanter systems that were shipped long before the advent of silicon coating for contamination control. Low particles and reduced elemental levels are critical performance criteria for the silicone elastomers used on disk heatsinks and serial implanter platens. Novel evaluation techniques and custom engineered tools are used to investigate the surface interaction characteristics of multiple Elastomeric Silicone Coatings currently in use by the industry - specifically, friction and perpendicular stiction. These parameters are presented as methods to investigate the critical wafer load and unload function. Unique tools and test methods have been developed that deliver accurate and repeatable data, which will be described.},
doi = {10.1063/1.4766553},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1496,
place = {United States},
year = {2012},
month = {11}
}