NOVELTY - Article (100) comprises: conductive foil (102) having first major surface; pressure sensitive adhesive layer (104) in contact with at least portion of major surface; conductive element comprising several protrusions (103) in conductive foil that extend from first major surface into pressure sensitive adhesive layer; and conductive substrate (106) in contact with pressure sensitive adhesive layer, where conductive substrate makes electrical contact with at least portion of protrusions, and arrangement of protrusions does not create any substantially enclosed areas.    USE - As conductive article selected from photovoltaic cell, solar module (claimed), electronic circuit and integrated circuit.    ADVANTAGE - The articles provide improved conductive articles including conductive foil adhesive tapes that can provide conductivity to conductive substrates, such as photovoltaic cells or solar modules either through conductive particles in adhesive tape containing pressure-sensitive adhesive and/or protrusions in conductive foil backing though adhesive tape so that foil backing makes direct contact with substrate. These conductive tapes can maintain conductivity to substrates even when subjected to vacuum and high temperature conditions required for encapsulation of these articles, due to presence of pressure sensitive adhesive comprising reaction product of acrylic monomers having boiling point of greater than 140 degrees C, and having stress relaxation modulus of greater than 3x 104 dynes/cm2 after 100 seconds at 100 degrees C. Further, conductive foil adhesive tapes can be applied with light force and no heat can enable solar cells to be made thinner and more economical, where with the adhesive pressure can be applied to establish electrical conductivity between conductive foil and solar module to form conductive assembly. With improved electrical conductivity these tapes can allow higher currents and lower electrical loss; as compared to prior art conductive foil tapes having difficulty achieving high conductivity with substrate due to high temperature and low pressure processing requirements of solar panels, such as vacuum and high temperatures of greater than or equal to 155 degrees C to cure encapsulant, where presence of unreacted monomer in adhesive with boiling point lower than encapsulating cure temperature results in outgassing of adhesive and bubbles, with reduced electrical contact between foil backing and substrate; and if adhesive has relatively high stress relaxation rate at encapsulation temperature, then it can easily shear which can lead to lower electrical conductivity. The use of pressure sensitive adhesive reduces outgassing and delamination by expansion of bubbles from outgassing or gasses entrained during lamination of conductive foil tape to substrate. The assemblies provide electrical conductivity in z-direction of assemblies by forming conductive pathways from foil to substrate through protrusions and/or conductive particles. When tape with adhesive is laminated to substrate, conductive pathways are formed which are held together by adhesive. The adhesives with stress relaxation of greater than 3x 104 dynes/cm2 after 100 seconds exposure to 100?C using initial strain of 30% resist delamination when laminated assembly is exposed to vacuum and temperatures of 155 degrees C.    DETAILED DESCRIPTION - An article (100) comprises: conductive foil (102) having first major surface; pressure sensitive adhesive layer (104) in contact with at least portion of first major surface of conductive foil; conductive element comprising several protrusions (103) in conductive foil that extend from first major surface of conductive foil into pressure sensitive adhesive layer; and conductive substrate (106) in contact with pressure sensitive adhesive layer, where conductive substrate makes electrical contact with at least a portion of protrusions, and arrangement of protrusions does not create any substantially enclosed areas. The pressure sensitive adhesive comprises a reaction product of acrylic monomers having boiling point of greater than 140 degrees C, and pressure sensitive adhesive has stress relaxation modulus of greater than 3x 104 dynes/cm2 after 100 seconds measured at 100 degrees C. The protrusions comprise array of geometric elements that have shape selected from ridges, cylinders, cones, parallelepipeds, prisms, corrugations, and their frustums (preferably ridges, cones, and their frustums). The article alternatively comprises conductive foil having first and second major surfaces with first and second pressure sensitive adhesive layers in contact with at least portion of first and second major surfaces of conductive foil, respectively; first and second conductive elements comprising at least one of several protrusions in conductive foil that extend from first and second major surfaces into first and second pressure sensitive adhesive layers, or conductive particles disposed in first and second pressure sensitive adhesive layers in electrical contact with first and second major surfaces, respectively; first and second conductive substrates in contact with first and second pressure sensitive adhesive layers, making electrical contact with at least portion of protrusions extending from first and second major surfaces into first and second pressure sensitive adhesive layers, and/or conductive particles disposed in first and second pressure sensitive adhesive layers, respectively; arrangement of protrusions, if present, not creating any substantially enclosed area, and if conductive particles are present, each of first and second pressure sensitive adhesives comprise the reaction product of acrylic monomers. An INDEPENDENT CLAIM is included for making the article involving: providing conductive foil having first major surface and, optionally several protrusions in conductive foil that extend from first major surface of conductive foil; applying pressure sensitive adhesive layer to conductive foil, where adhesive, optionally has conductive particles disposed in it; laminating conductive substrate to pressure sensitive adhesive layer to form laminated assembly; and applying pressure to laminated assembly so as to provide electrical contact between conductive foil and conductive substrate, where arrangement of protrusions, if present, does not create any substantially enclosed area, and if conductive particles are present, pressure sensitive adhesive comprises the reaction product of acrylic monomers.    DESCRIPTION OF DRAWING(S) - The figure shows cross-sectional illustration of article having conductive foil including protrusions.    Laminated conductive assembly/article (100)    Conductive foil (102)    Protrusions (103)    Adhesive (104)    Conductive substrate (106)