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Class Information
Number: 428/643
Name: Stock material or miscellaneous articles > All metal or with adjacent metals > Composite; i.e., plural, adjacent, spatially distinct metal components (e.g., layers, joint, etc.) > Pb- and sn-base components: alternative to or next to each other
Description: Subject matter in which a component* having 40 percent or more of tin is adjacent a component* having 40 percent or more of lead, or in which a component* of the composite* may be either lead-base or tin-base or a combination of lead and tin which makes up 40 percent or more of the component, e.g., 30 percent lead and 30 percent tin.


Sub-classes under this class:

Class Number Class Name Patents
428/644 And next to cu- or fe-base component 55


Patents under this class:
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Patent Number Title Of Patent Date Issued
6872252 Lead-based perovskite buffer for forming indium phosphide on silicon Mar. 29, 2005
6803116 Method of bonding a conductive adhesive and an electrode, and a bonded electrode obtained thereby Oct. 12, 2004
6760396 Coated metal articles and method of making Jul. 6, 2004
6635123 Copper preservative treatment Oct. 21, 2003
6579647 Tin-clad substrates for use as current collectors, batteries comprised thereof and methods for preparing same Jun. 17, 2003
6541127 Swash plate of swash plate type compressor Apr. 1, 2003
6309759 Sliding bearing and its production method Oct. 30, 2001
6265085 Bonding material and bump Jul. 24, 2001
6221503 Electrode modification using an unzippable polymer paste Apr. 24, 2001
6210547 Enhanced solder surface and process for chemically and mechanically enhancing solder surface properties Apr. 3, 2001
6203929 Gold plated solder material and method of fluxless soldering using solder Mar. 20, 2001
6197435 Substrate Mar. 6, 2001
6158644 Method for enhancing fatigue life of ball grid arrays Dec. 12, 2000
6136460 Tin coatings incorporating selected elemental additions to reduce discoloration Oct. 24, 2000
6095404 Method for assembling high temperature electronics Aug. 1, 2000
6037065 Spheres useful in a detachable connective medium for ball grid array assemblies Mar. 14, 2000
6013381 Fluorinated fluxless soldering Jan. 11, 2000
5972526 Decorative member Oct. 26, 1999
5901901 Semiconductor assembly with solder material layer and method for soldering the semiconductor assemly May. 11, 1999
5856028 Process for producing a metal-coated, metallized component of aluminum nitride ceramic and metal-coated component obtained thereby Jan. 5, 1999
5840391 Decorative glass sheet with simulated beveled pane and method for forming the same Nov. 24, 1998
5770323 Bearings Jun. 23, 1998
5629098 Epoxy adhesives and copper foils and copper clad laminates using same May. 13, 1997
5593790 Interference super-resolution using two magnetic layer construction Jan. 14, 1997
5532070 Solder-precoated conductor circuit substrate and method of producing the same Jul. 2, 1996
5525433 Epoxy adhesives and copper foils and copper clad laminates using same Jun. 11, 1996
5523174 Printed circuit boards Jun. 4, 1996
5476726 Circuit board with metal layer for solder bonding and electronic circuit device employing the same Dec. 19, 1995
5434012 Multilayer slide bearing and bearing assembly Jul. 18, 1995
5432013 Sliding bearing for light alloy housing Jul. 11, 1995
5384205 Multi-layer slide bearing having Al-Sn alloy layer with high fatigue strength and conformability Jan. 24, 1995
5362574 Multilayer aluminum-based alloy bearing having superior compatibility and superior fatigue resistance Nov. 8, 1994
5300368 Highly wear-resistant overlay with improved slip and a method of its production Apr. 5, 1994
5223347 Creep resistant composite alloys Jun. 29, 1993
5139883 Intermetallic time-temperature integration fuse Aug. 18, 1992
5086966 Palladium-coated solder ball Feb. 11, 1992
5066544 Dispersion strengthened lead-tin alloy solder Nov. 19, 1991
5045405 Sliding surface bearing for high loads Sep. 3, 1991
4946748 Highly anticorrosive coated steel sheet for fuel vessel and process for production thereof Aug. 7, 1990
4830933 Composite structural material with diffusion barrier layer, especially for slide and friction members, and method of manufacture May. 16, 1989
4824737 Tin-lead alloy coated material Apr. 25, 1989
4591536 Plain bearing and method of manufacture May. 27, 1986
4562122 Multi-layer plain bearing Dec. 31, 1985
4544239 Compressed bismuth-containing garnet films of replicable low anisotropy field value and devices utilizing same Oct. 1, 1985
4524241 Insulated multiwire electric cable having protected solderable and non-heat-sealing conductors Jun. 18, 1985
4500609 Thin film binary metallic eutectics Feb. 19, 1985
4486511 Solder composition for thin coatings Dec. 4, 1984
4451972 Method of making electronic chip with metalized back including a surface stratum of solder Jun. 5, 1984
4441118 Composite copper nickel alloys with improved solderability shelf life Apr. 3, 1984
4413039 Steel sheet plated with layers of NiSn and Pb-Sn alloy for automotive fuel tank Nov. 1, 1983

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