Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate

The organic methylsilsesquioxane (MSQ) demonstrates low dielectric constant value (2.6) and is promising interlayer dielectric material to reduce the capacitive coupling between metal layers in semiconductor integrated circuits. However, MSQ has lower film density and therefore is more porous than t...

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Видавець:Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
Дата:2002
Автори: Aw, K.C., Ibrahim, K.
Формат: Стаття
Мова:English
Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2002
Назва видання:Semiconductor Physics Quantum Electronics & Optoelectronics
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/121295
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Цитувати:Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate / K.C. Aw, K. Ibrahim // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2002. — Т. 5, № 3. — С. 316-318. — Бібліогр.: 5 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id irk-123456789-121295
record_format dspace
spelling irk-123456789-1212952017-06-14T03:07:18Z Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate Aw, K.C. Ibrahim, K. The organic methylsilsesquioxane (MSQ) demonstrates low dielectric constant value (2.6) and is promising interlayer dielectric material to reduce the capacitive coupling between metal layers in semiconductor integrated circuits. However, MSQ has lower film density and therefore is more porous than the traditional SiO2 film and could pose reliability issues. This paper is aimed to characterize the MOS capacitor (MOSC) structure with evaporated and sputtered aluminium method deposited on top of spin-on MSQ. Electrical characterization using C-V and I-t measurements during bias temperature stress (BTS) were used to understand the effect of evaporated and sputtered Al on MSQ. The results show that MOSC with evaporated aluminium has lower breakdown voltage and has poor reliability as compared to structures with sputtered aluminium. The high temperature required for evaporation compared to sputtering process caused these, which cause defects at the aluminium/MSQ interface. Sputtered aluminium gate structures demonstrate Al+ injection under high positive voltage stress due to ionization at the Al/MSQ interface. 2002 Article Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate / K.C. Aw, K. Ibrahim // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2002. — Т. 5, № 3. — С. 316-318. — Бібліогр.: 5 назв. — англ. 1560-8034 PACS: 43.70.Q http://dspace.nbuv.gov.ua/handle/123456789/121295 en Semiconductor Physics Quantum Electronics & Optoelectronics Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description The organic methylsilsesquioxane (MSQ) demonstrates low dielectric constant value (2.6) and is promising interlayer dielectric material to reduce the capacitive coupling between metal layers in semiconductor integrated circuits. However, MSQ has lower film density and therefore is more porous than the traditional SiO2 film and could pose reliability issues. This paper is aimed to characterize the MOS capacitor (MOSC) structure with evaporated and sputtered aluminium method deposited on top of spin-on MSQ. Electrical characterization using C-V and I-t measurements during bias temperature stress (BTS) were used to understand the effect of evaporated and sputtered Al on MSQ. The results show that MOSC with evaporated aluminium has lower breakdown voltage and has poor reliability as compared to structures with sputtered aluminium. The high temperature required for evaporation compared to sputtering process caused these, which cause defects at the aluminium/MSQ interface. Sputtered aluminium gate structures demonstrate Al+ injection under high positive voltage stress due to ionization at the Al/MSQ interface.
format Article
author Aw, K.C.
Ibrahim, K.
spellingShingle Aw, K.C.
Ibrahim, K.
Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
Semiconductor Physics Quantum Electronics & Optoelectronics
author_facet Aw, K.C.
Ibrahim, K.
author_sort Aw, K.C.
title Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
title_short Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
title_full Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
title_fullStr Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
title_full_unstemmed Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
title_sort characterization of mos structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate
publisher Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
publishDate 2002
url http://dspace.nbuv.gov.ua/handle/123456789/121295
citation_txt Characterization of MOS structure using low-k dielectric methylsilsesquioxane with evaporated and sputtered aluminium gate / K.C. Aw, K. Ibrahim // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2002. — Т. 5, № 3. — С. 316-318. — Бібліогр.: 5 назв. — англ.
series Semiconductor Physics Quantum Electronics & Optoelectronics
work_keys_str_mv AT awkc characterizationofmosstructureusinglowkdielectricmethylsilsesquioxanewithevaporatedandsputteredaluminiumgate
AT ibrahimk characterizationofmosstructureusinglowkdielectricmethylsilsesquioxanewithevaporatedandsputteredaluminiumgate
first_indexed 2023-10-18T20:39:06Z
last_indexed 2023-10-18T20:39:06Z
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