US2004104262A1PendingUtilityA1

Use of conductor compositions in electronic circuits

40
Priority: Apr 9, 2001Filed: Apr 4, 2002Published: Jun 3, 2004
Est. expiryApr 9, 2021(expired)· nominal 20-yr term from priority
Inventors:Sarah Jane Mears
H01B 1/16H01C 17/06526H01C 17/06546H05B 3/84H05B 2203/017H05K 1/092
40
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

Use of a composition comprising finely divided particles of (a) an electrically-conductive material; (b) one or more inorganic binders; and (c) zinc, wherein components (a, b and c) are dispersed in a liquid vehicle, in the manufacture of an electrically-conductive pattern on a substrate for the purpose of increasing the resistivity of said electrically-conductive pattern.

Claims

exact text as granted — not AI-modified
1 . (Currently Amended) Use of a composition comprising finely divided particles of (a) an electrically-conductive material; (b) one or more inorganic binders; and (c) zinc, wherein components (a), (b) and (c) are dispersed in a liquid vehicle, in the manufacture of an electrically-conductive pattern on a substrate for the purpose of increasing the resistivity while maintaining solder adhesion of said electrically conductive pattern.  
     
     
         2 . (Currently Amended) A method of increasing the resistivity while maintaining solder adhesion of an electrically-conductive pattern which comprises utilising utilizing in the manufacture of said conductive pattern a composition comprising finely divided particles of (a) an electrically-conductive material; (b) one or more inorganic binders; and (c) zinc, wherein components (a), (b), and (c) are dispersed in a liquid vehicle.  
     
     
         3 . (Currently Amended) A use or method according to  claim 1  or  2  wherein said liquid vehicle is an organic medium.  
     
     
         4 . (Currently Amended) A use or method according to  claim 1  or  2  wherein component (c) comprises metallic zinc particles.  
     
     
         5 . (Currently Amended) A use or method according to  claim 1  or  2  wherein component (c) comprises particles of a zinc-containing alloy.  
     
     
         6 . (Currently Amended) A use or method according to  claim 1  or  2  wherein said electrically-conductive particles are silver particles.  
     
     
         7 . (Currently Amended) A use or method according to  claim 1  or  2  wherein substantially all particles are in the range of 0.01 to 20 μm.  
     
     
         8 . (Currently Amended) A use or method according to  claim 1  or  2  wherein the total amount of components (a), (b), and (c) is about 50 to about 95% by weight of the composition.  
     
     
         9 . (Currently Amended) A use or method according to  claim 1  or  2  wherein component (a) is present in amounts of about 50 to about 98% by weight of the total solids present in the composition.  
     
     
         10 . (Currently Amended) A use or method according to  claim 1  or  2  wherein component (b) is present in amounts of about 2 to 15% by weight of the total solids present in the composition.  
     
     
         11 . (Currently Amended) A use or method according to  claim 1  or  2  wherein component (c) is present in amounts of about 2 to 15% by weight of the total solids present in the composition.  
     
     
         12 . (Currently Amended) A use or method according to as in any one of claims  1  or  3 - 11  inclusive any preceding claim wherein said manufacture of an electrically-conductive pattern comprises applying to a substrate a composition comprising finely divided particles of (a) an electrically-conductive material; (b) one or more inorganic binders; and (c) zinc, said components (a), (b) and (c) being dispersed in a liquid vehicle, and firing the coated substrate to effect sintering of the finely-divided particles to the substrate.  
     
     
         13 . (Currently Amended) A use or method according to  claim 12  wherein said manufacture comprises a screen-printing process.  
     
     
         14 . (Original) The use of finely-divided particles of zinc in a composition further comprising finely divided particles of (a) an electrically-conductive material and (b) one or more inorganic binders dispersed in a liquid vehicle, for the purpose of increasing the resistivity of an electrically-conductive pattern manufactured from said composition.  
     
     
         15 . (Original) A method for increasing the resistivity of an electrically-conductive pattern manufactured from a composition comprising finely-divided particles of (a) an electrically-conductive material and (b) one or more inorganic binders dispersed in a liquid vehicle, said method comprising the incorporation of finely-divided particles of (c) zinc into said composition.  
     
     
         16 . (New) A method according to  claim 2  wherein said liquid vehicle is an organic medium.  
     
     
         17 . (New) A method according to  claim 2  wherein component (c) comprises metallic zinc particles.  
     
     
         18 . (New) A method according to  claim 2  wherein component (c) comprises particles of a zinc-containing alloy.  
     
     
         19 . (New) A method according to  claim 2  wherein said electrically-conductive particles are silver particles.  
     
     
         20 . (New) A method according to  claim 2  wherein substantially all particles are in the range of 0.01 to 20 μm.  
     
     
         21 . (New) A method according to  claim 2  wherein the total amount of components (a), (b), and (c) is about 50 to about 95% by weight of the composition.  
     
     
         22 . (New) A method according to  claim 2  wherein component (a) is present in amounts of about 50 to about 98% by weight of the total solids present in the composition.  
     
     
         23 . (New) A method according to  claim 2  wherein component (b) is present in amounts of about 2 to 15% by weight of the total solids present in the composition.  
     
     
         24 . (New) A method according to  claim 2  wherein component (c) is present in amounts of about 2 to 15% by weight of the total solids present in the composition.  
     
     
         25 . (New) A method as in any one of claims  2  or  16 - 24  inclusive wherein said manufacture of an electrically-conductive pattern comprises applying to a substrate a composition comprising finely divided particles of (a) an electrically-conductive material; (b) one or more inorganic binders; and (c) zinc, said components (a), (b) and (c) being dispersed in a liquid vehicle, and firing the coated substrate to effect sintering of the finely-divided particles to the substrate.  
     
     
         26 . (New) A method according to  claim 25  wherein said manufacture comprises a screen-printing process.

Join the waitlist — get patent alerts

Track US2004104262A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.