Influence of film thickness, molecular weight, and substrate on the physical properties of photoresist polymer thin films

2003 ◽  
Author(s):  
Lovejeet Singh ◽  
Peter J. Ludovice ◽  
Clifford L. Henderson
Keyword(s):  
Thin Films ◽  
Molecular Weight ◽  
Film Thickness ◽  
Physical Properties ◽  
Polymer Thin Films

The Effect of Surface Interactions on the Viscosity of Polymer Thin Films

2005 ◽  
Vol 890 ◽  
Author(s):  
Chunhua Li ◽  
Jun Jiang ◽  
Miriam J. Rafailovich ◽  
Jonathan C. Sokolov
Keyword(s):  
Thin Films ◽  
Film Thickness ◽  
Effective Viscosity ◽  
Polymer Thin Films ◽  
Surface Interactions ◽  
Polymer Chains ◽  
Bilayer Films ◽  
Silicon Interface ◽  
Effect Of Surface

ABSTRACTPreviously, we reported that the viscosity of a polymer film can be measured in situ by observing the liquid-liquid dewetting of polymer bilayer films. In this study, we use the technique to investigate the effect of film thickness and surface interactions on the effective viscosity of polymer thin films. We found that the effective viscosity increases dramatically with decreasing the film thickness. We attribute this to the pinning of the polymer chains at the strongly interacting polymer/Silicon interface.

scholarly journals Using microprojectiles to study the ballistic limit of polymer thin films

Soft Matter ◽  
2020 ◽  
Vol 16 (16) ◽  
pp. 3886-3890 ◽  
Author(s):  
Shawn H. Chen ◽  
Amanda J. Souna ◽  
Christopher L. Soles ◽  
Stephan J. Stranick ◽  
Edwin P. Chan
Keyword(s):  
Thin Films ◽  
Film Thickness ◽  
Impact Test ◽  
Polymer Thin Films ◽  
Ballistic Limit ◽  
Projectile Impact

In this work, a microballistic impact test called laser induced projectile impact test (LIPIT) was used to study the perforation behavior of polycarbonate thin films to demonstrate the importance of film thickness on the film's ballistic limit.

Influence of film thickness and In-doping on physical properties of CdS thin films

2014 ◽  
Vol 587 ◽  
pp. 582-587 ◽  
Author(s):  
Sajid Butt ◽  
Nazar Abbas Shah ◽  
Adnan Nazir ◽  
Zulfiqar Ali ◽  
Asghri Maqsood
Keyword(s):  
Thin Films ◽  
Film Thickness ◽  
Physical Properties ◽  
In Doping ◽  
Cds Thin Films

Block Copolymer Thin Films Above and Below the Order-Disorder Transition Temperature

2000 ◽  
Vol 629 ◽  
Author(s):  
Ratchana Limary ◽  
Peter F. Green
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Molecular Weight ◽  
Transition Temperature ◽  
Block Copolymer ◽  
Film Thickness ◽  
Diblock Copolymer ◽  
Diblock Copolymers ◽  
Microphase Separation ◽  
Disorder Transition Temperature

ABSTRACTSymmetric diblock copolymers undergo a disorder to order transition below a microphase separation transition temperature. In this temperature range the structure is characterized by alternating lamellae of thickness L. In thin film geometries, the lamellae are oriented normal to the substrate if there is a preferential interaction between either of the block constituents and the substrate/copolymer or copolymer/vacuum interfaces. Depending on the relation between the film thickness and L, the topography of the film might comprise of holes, islands or spinodal-like structures. We show that in a polystyrene-b-poly(methyl methacrylate) diblock copolymer of molecular weight 20, 000 g/mol, above the microphase separation transition temperature, the topography of the film depends on the thickness. A heirarchy of bicontinuous patterns and holes is observed with increasing film thickness for films thinner than 35 nm.

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