Introduction of functional groups into polymer films via deep-UV photolysis or electron-beam lithography: modification of polystyrene and poly(3-octylthiophene) by a functionalized perfluorophenyl azide

1992 ◽  
Vol 4 (4) ◽  
pp. 879-884 ◽  
Author(s):  
Sui Xiong Cai ◽  
Manoj Kanskar ◽  
M. N. Wybourne ◽  
John F. W. Keana
Author(s):  
A Gerbreders ◽  
O Shimane ◽  
V Kolobjonoks ◽  
J Teteris

1990 ◽  
Vol 2 (6) ◽  
pp. 631-633 ◽  
Author(s):  
Sui Xiong Cai ◽  
J. C. Nabity ◽  
M. N. Wybourne ◽  
John F. W. Keana

1990 ◽  
Author(s):  
Dennis R. McKean ◽  
Nicholas J. Clecak ◽  
Lester A. Pederson, Sr.

1996 ◽  
Vol 35 (Part 1, No. 12B) ◽  
pp. 6440-6446 ◽  
Author(s):  
Yeong-Lin Lai ◽  
Edward Y. Chang ◽  
Chun-Yen Chang ◽  
Hung-Pin D. Yang ◽  
K. Nakamura ◽  
...  

2013 ◽  
Vol 543 ◽  
pp. 281-284
Author(s):  
Andrejs Gerbreders ◽  
Vadims Kolobjonoks ◽  
Oksana Shimane ◽  
Janis Teteris

Due to active development of nanoelectronics, the studies of methods of nanorelief surface formation in different materials, in particular polymers are very important. Organic polymer films in consequence of their dielectric and optical properties have been used as basis of these devices. In this paper, the possibility of UV optical record and electron beam lithography in different type of polymeric films was studied. Mechanisms of molecular structure changes: photoisomerization, destruction, cross-linking and oxidation have been discussed. The results of UV illumination of polyurethanes, polyacrylates, and some block-copolymers were described. The element analysis of polybutadiene block copolymer was performed before and after UV illumination, and the changes in optical transmission spectra of the polymer film were measured. The resolution of electron beam lithography on polymeric films also was studied.


2001 ◽  
Author(s):  
Hsuen-Li Chen ◽  
Chien-Kui Hsu ◽  
Ben-Chang Chen ◽  
Fu-Hsiang Ko ◽  
Jung-Yen Yang ◽  
...  

Author(s):  
L. D. Jackel

Most production electron beam lithography systems can pattern minimum features a few tenths of a micron across. Linewidth in these systems is usually limited by the quality of the exposing beam and by electron scattering in the resist and substrate. By using a smaller spot along with exposure techniques that minimize scattering and its effects, laboratory e-beam lithography systems can now make features hundredths of a micron wide on standard substrate material. This talk will outline sane of these high- resolution e-beam lithography techniques.We first consider parameters of the exposure process that limit resolution in organic resists. For concreteness suppose that we have a “positive” resist in which exposing electrons break bonds in the resist molecules thus increasing the exposed resist's solubility in a developer. Ihe attainable resolution is obviously limited by the overall width of the exposing beam, but the spatial distribution of the beam intensity, the beam “profile” , also contributes to the resolution. Depending on the local electron dose, more or less resist bonds are broken resulting in slower or faster dissolution in the developer.


2020 ◽  
Vol 59 (12) ◽  
pp. 126502
Author(s):  
Moataz Eissa ◽  
Takuya Mitarai ◽  
Tomohiro Amemiya ◽  
Yasuyuki Miyamoto ◽  
Nobuhiko Nishiyama

1999 ◽  
Vol 35 (15) ◽  
pp. 1283 ◽  
Author(s):  
S. Michel ◽  
E. Lavallée ◽  
J. Beauvais ◽  
J. Mouine

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alexander Goncharsky ◽  
Anton Goncharsky ◽  
Dmitry Melnik ◽  
Svyatoslav Durlevich

AbstractThis paper focuses on the development of flat diffractive optical elements (DOEs) for protecting banknotes, documents, plastic cards, and securities against counterfeiting. A DOE is a flat diffractive element whose microrelief, when illuminated by white light, forms a visual image consisting of several symbols (digits or letters), which move across the optical element when tilted. The images formed by these elements are asymmetric with respect to the zero order. To form these images, the microrelief of a DOE must itself be asymmetric. The microrelief has a depth of ~ 0.3 microns and is shaped with an accuracy of ~ 10–15 nm using electron-beam lithography. The DOEs developed in this work are securely protected against counterfeiting and can be replicated hundreds of millions of times using standard equipment meant for the mass production of relief holograms.


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