US2019390357A1PendingUtilityA1

Tin alloy plating solution

39
Assignee: MITSUBISHI MATERIALS CORPPriority: Jan 31, 2017Filed: Dec 13, 2017Published: Dec 26, 2019
Est. expiryJan 31, 2037(~10.5 yrs left)· nominal 20-yr term from priority
Inventors:Kouji TatsumiTsukasa YasoshimaTakuma Katase
C25D 3/56C25D 3/32C25D 7/12C25D 3/60
39
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A tin alloy plating solution comprising a soluble tin salt, a soluble salt of a metal nobler than tin, and a sulfide compound represented by general formula (I). In formula (I), n is 1 to 3. The metal nobler than tin is preferably silver, copper, gold, or bismuth.

Claims

exact text as granted — not AI-modified
1 . A tin alloy plating solution comprises a soluble tin salt, a soluble salt of a metal nobler than tin, and a sulfide compound represented by general formula (1), wherein a metal nobler than tin is at least 1 or 2 or more kinds of metals selected from silver, copper, gold and bismuth, in general formula (1), n is from 1 to 3
   HO—CH 2 CH 2 —S—(CH 2 CH 2 —O—CH 2 CH 2 —S) n —CH 2 CH 2 —OH  (1)
   
     
     
         2 . The tin alloy plating solution according to  claim 1 , further comprising at least 1 or 2 or more surfactants selected from anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants. 
     
     
         3 . (canceled) 
     
     
         4 . The tin alloy plating solution according to  claim 1 , further comprising an antioxidant. 
     
     
         5 . The tin alloy plating solution according to  claim 1 , further comprising a complexing agent for tin. 
     
     
         6 . The tin alloy plating solution according to  claim 1 , further comprising a pH adjusting agent. 
     
     
         7 . The tin alloy plating solution according to  claim 1 , further comprising a brightening agent. 
     
     
         8 . The tin alloy plating solution according to  claim 2 , further comprising an antioxidant. 
     
     
         9 . The tin alloy plating solution according to  claim 2 , further comprising a complexing agent for tin. 
     
     
         10 . The tin alloy plating solution according to  claim 4 , further comprising a complexing agent for tin. 
     
     
         11 . The tin alloy plating solution according to  claim 8 , further comprising a complexing agent for tin. 
     
     
         12 . The tin alloy plating solution according to  claim 2 , further comprising a pH adjusting agent. 
     
     
         13 . The tin alloy plating solution according to  claim 4 , further comprising a pH adjusting agent. 
     
     
         14 . The tin alloy plating solution according to  claim 5 , further comprising a pH adjusting agent. 
     
     
         15 . The tin alloy plating solution according to  claim 8 , further comprising a pH adjusting agent. 
     
     
         16 . The tin alloy plating solution according to  claim 2 , further comprising a brightening agent. 
     
     
         17 . The tin alloy plating solution according to  claim 4 , further comprising a brightening agent. 
     
     
         18 . The tin alloy plating solution according to  claim 5 , further comprising a brightening agent. 
     
     
         19 . The tin alloy plating solution according to  claim 6 , further comprising a brightening agent. 
     
     
         20 . The tin alloy plating solution according to  claim 8 , further comprising a brightening agent. 
     
     
         21 . The tin alloy plating solution according to  claim 9 , further comprising a brightening agent.

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