Nanoporous Organosilicate Glass Films via Chemical Vapor Deposition onto Colloidal Crystal Templates

2005 ◽  
Vol 2 (5) ◽  
pp. 401-406 ◽  
Author(s):  
Qingguo Wu ◽  
April D. Ross ◽  
Karen K. Gleason
2003 ◽  
Vol 766 ◽  
Author(s):  
Raymond N. Vrtis ◽  
Mark L. O'Neill ◽  
Jean L. Vincent ◽  
Aaron S. Lukas ◽  
Brian K. Peterson ◽  
...  

AbstractWe report on our work to develop a process for depositing nanoporous organosilicate (OSG) films via plasma enhanced chemical vapor deposition (PECVD). This approach entails codepositing an OSG material with a plasma polymerizable hydrocarbon, followed by thermal annealing of the material to remove the porogen, leaving an OSG matrix with nano-sized voids. The dielectric constant of the final film is controlled by varying the ratio of porogen precursor to OSG precursor in the delivery gas. Because of the need to maintain the mechanical strength of the final material, diethoxymethylsilane (DEMS) is utilized as the OSG precursor. Utilizing this route we are able to deposit films with a dielectric constant of 2.55 to 2.20 and hardness of 0.7 to 0.3 GPa, respectively.


2001 ◽  
Vol 16 (12) ◽  
pp. 3335-3338 ◽  
Author(s):  
E. Todd Ryan ◽  
Jeremy Martin ◽  
Kurt Junker ◽  
Jeff Wetzel ◽  
David W. Gidley ◽  
...  

Most organosilicate glass (OSG), low dielectric constant (low-κ) films contain Si–R groups, where R is an organic moiety such as −CH3. The organic component is susceptible to the chemically reactive plasmas used to deposit cap layers, etch patterns, and ash photoresist. This study compares a spin-on, mesoporous OSG film with a completely connected pore structure to both its nonmesoporous counterpart and to another low-density OSG film deposited by plasma-enhanced chemical vapor deposition. The results show that the film with connected pores was much more susceptible to integration damage than were the nonmesoporous OSG films.


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