Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material
Patent
1995-02-24
1997-06-24
Bowers, Jr., Charles L.
Semiconductor device manufacturing: process
Coating with electrically or thermally conductive material
To form ohmic contact to semiconductive material
148DIG46, 148DIG137, 430296, 430313, 430330, 438694, 438700, 438949, H01L 21312
Patent
active
056417152
ABSTRACT:
Either a chemical amplification positive electron beam resist film or a chemical amplification negative electron beam resist film is used selectively according to an IC fabricating process when forming a minute IC pattern by using, as a mask, a resist pattern formed by irradiating the chemical amplification electron beam resist film formed on a semiconductor wafer with an electron beam, to form the minute IC pattern quickly in a high accuracy and to carry out an electron beam direct writing at a high throughput. The chemical amplification electron beam resist film is coated with a conductive polymer film before irradiating the same with the electron beam to prevent the charging-up of the chemical amplification electron beam resist film and to stabilize the chemical amplification electron beam resist film during a electron beam writing process.
REFERENCES:
patent: 4213053 (1980-07-01), Pfeiffer
patent: 4487795 (1984-12-01), Yasuda et al.
patent: 4595649 (1986-06-01), Ferguson et al.
patent: 4816361 (1989-03-01), Glendinning
patent: 5019485 (1991-05-01), Nakamura et al.
patent: 5093224 (1992-03-01), Hashimoto et al.
patent: 5137841 (1992-08-01), Takeda et al.
patent: 5198326 (1993-03-01), Hashimoto et al.
patent: 5252430 (1993-10-01), Hashimoto et al.
patent: 5288368 (1994-02-01), DeMarco et al.
patent: 5298365 (1994-03-01), Okamoto et al.
K. Suzuki, et al., IEEE Trans. Electron Dev., 28, 9 (1981) 1088, "Electron Beam Direct Writing Technology . . . " Sep. 1981.
P. Shah, et al., J. Vac. Sci. Technol., 19, 4 (1981) 905, "E-Beam Fabrication of . . . Static Memory" Nov. 1981.
E. Heike, Siemens Forschungs, 11, 4 (1982) 174, "Resist Technology for Metallization of ICs by E-Beam Writing" Apr. 1982.
W. Fichtner, et al., IEDM '83 Proc., p. 384, "Optimized MOSFETS with subquartermicron channel lengths" Dec. 1983.
"Negative Electron Beam Resist Utilizing Silanol-Condensation Reaction", Journal of Photopolymer Science & Tech., vol. 2, (1989), Aoki, et al, pp. 115-122.
W. Fichtner et al., IEDM '83, p. 384, "Optimized MOSFETS . . . " Dec. 1983.
E. Heike et al., Siemens Forschungs und Entwickl.--Ber. Bd. 11(4) (1982) 174, "Resist Technology for the Metallization of ICs by Electron Beam Writing" 1982.
Bowers Jr. Charles L.
Hitachi , Ltd.
Radomsky Leon
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