Aluminum electroplating formulations

Abstract

Electroplating electrolyte compositions including CA.(nAl(C 3 H 7 ) 3 (2−n)AlR 3 ) where n is 0 and less than or equal to 2; C is Li, Na, K, Rb, Cs, NR′ 4 , or mixtures thereof wherein R′ is H, CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 , C 5 H 11 , C 6 H 13 , C 7 H 15 , C 8 H 17 , or mixtures thereof; A is H, F, Cl, Br, or mixtures thereof; R is H, halogen, CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 , C 5 H 9 , C 5 H 11 , C 6 H 13 , C 7 H 15 , C 8 H 17 , or mixtures thereof; and an aromatic hydrocarbon, aliphatic hydrocarbon, or mixtures thereof are described. Aluminum and magnesium/aluminum electroplating compositions including C.(nAl(C 3 H 7 ) 4 (1−n)AlR 4 ) where n is 0 and less than or equal to 1, where C is a cation such as li, Na, K, Rb, Cs, or mixtures thereof; R is H or an alkyl such as CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 , C 5 H 9 , C 5 H 11 , C 6 H 13 , C 7 H 15 , C 8 H 17 , or mixtures thereof are also described. The aluminum and magnesium/aluminum electroplating compositions formulation can include a solvent such as, an aromatic hydrocarbon aliphatic hydrocarbon, or mixtures thereof.

1 . An electroplating composition comprising: 
       CA.( n Al(C 3 H 7 ) 3 (2− n )AlR 3 ) wherein:    n is greater than 0 and less than or equal to 2;    C is Li, Na, K, Rb, Cs, NR 1 4 to mixtures thereof wherein R 1  is a C 1 -C 8  alkyl or mixtures thereof;    A is H, F, Cl, Br, or mixtures thereof;    R is H, halogen, a C 1 -C 8  alkyl or mixtures thereof; and    an aromatic hydrocarbon, aliphatic hydrocarbon, or mixtures thereof.    
   
   
       2 . The composition according to  claim 1 , wherein C is Na, K, NR 1 4, or mixtures thereof.  
   
   
       3 . The composition according to  claim 1 , wherein A is F.  
   
   
       4 . The composition according to  claim 1 , wherein A is Cl.  
   
   
       5 . The composition according to  claim 3 , wherein C is Li, Na, K, Rb, Cs, or mixtures thereof.  
   
   
       6 . The composition according to  claim 4 , wherein C is NR 1 4.  
   
   
       7 . The composition according to  claim 1 , wherein the aromatic hydrocarbon is toluene, xylene, tetraline or mixtures thereof.  
   
   
       8 . The composition according to  claim 1 , wherein; 
 C is 1 M K;    A is 1 M F;    n is 1.6;    R is CH 3      and the aromatic hydrocarbon is tetraline.    
   
   
       9 . The composition according to  claim 1 , wherein; 
 C is 0.6 M K and 0.4 M tetraalkylammonium;    A is 0.6 M F and 0.4 M Cl,    n is 0.6;    R is C 2 H 5  and di-iso-butyl hydride;    and the aromatic hydrocarbon is toluene.    
   
   
       10 . The composition according to  claim 1 , wherein; 
 C is 1 M Na;    A is 1 M H;    n is 1.1;    R is C 2 H 5 ;    and the aromatic hydrocarbon is toluene.    
   
   
       11 - 42 . (canceled)