In one embodiment of the present invention a thick film resistor structure comprising common materials is disclosed. The structure includes a supporting carrier as a base for the thick film resistor arrangement, which comprises a resistive material printed on the carrier, first and second noble metal terminating layers connected to either side of the resistive material, first and second barrier layers respectively connected to the first and second noble metal terminating layers, and first and se...

A thick composition comprising a mixture of: (a) 30-80% wt. finely divided particles of palladium powder having a surface area of 3-10 square meters/gm and density of 0.5-0.7 grams/cc; (b) 2-10% wt. finely divided particles of a refractory inorganic binder; all of A and B being dispersed in (c) 68-10% wt. of an organic medium; wherein the firing temperature of the composition is from 800.degree.-950.degree. C. This thick film composition is useful for forming detector electrodes within hydrogen ...

A microwave coupler including a first transmission line having one or more strip sections, and a second transmission line having one or more strip sections respectively associated with corresponding sections of the first transmission so as to form associated pairs of coupled strip sections. The associated coupled strip sections are substantially uniformly separated from each other and non-coplanar. Dielectric material dielectrically separates the associated strip sections of the first and second...

A thick-film incubator is used with a temperature control circuit and a mounting member on which the thick-film incubator is disposed. The thick-film incubator includes a ceramic substrate which has a first pair of conductive pads disposed at opposite ends thereof and a second pair of conductive pads disposed opposing each other thereon. A first layer of resistive ink is deposited on the ceramic substrate so that an open rectangular field is formed. The layer has a first end and a second end whi...

Thick, composite polyester films, well adapted as base films, e.g., for the graphic arts, are comprised of a crystalline or semicrystalline polyester film substrate (A) having a thickness of at least 40 micrometers, said film substrate (A) having a coating, e.g., a coextrudate, of a sulfonated copolyester adhesion primer on at least one of the face surfaces thereof, and said sulfonated copolyester comprising at least 80 mol % of terephthalate recurring units and from 3 to 10 mol % of oxysulfonyl...

A thick tube welder for welder together a tubular end fitting and a tube. The end fitting and the tube are placed in axial alignment within a welding head housing with the end fitting being located in a mounting housing. The mounting housing is then fixedly secured to the welding head housing. An inner welding electrode is connected to the mounting housing and is located in alignment with the inner surface of the welding joint. An outer welding electrode is located in alignment with the exterior...

A mat comprising a cushion base having a plurality of block plates each having cushion property and foldably connected together. A cushion member covers the upper surface of the cushion base, and the cushion base and the cushion member are detachably connected. The block plates are connected together at adjacent upper surfaces thereof and movably foldable about a centrally disposed fold line and a plurality of parallel transverse fold lines intersecting the longitudinal fold line. The fold lines...

Disclosed is a thick film capacitor comprising (a) a sintered layer of a ferroelectric material mainly consisting of one or more ferroelectric inorganic compounds having a perovskite structure and an inorganic binder having a eutectic composition which experiences a liquid phase at a temperature lower than the sintering temperature of the ferroelectric inorganic compounds, and (b) at least two electrodes formed on both surfaces of the sintered layer of the ferroelectric material. In the thick fi...

Thick film electronic compositions comprising finely divided particles of electrically functional material and a PbO-compatible inorganic binder dispersed in an organic medium in which 0.1 to 10.0% wt. lead nitrate is coated on the surface of at least one of the solide components.

A material system for manufacturing thick film resistors on a ceramic dielectric substrate is disclosed. The system includes the application and fixing of resistor terminations composed of a precious conductor material to a dielectric substrate. Resistor material is deposited over portions of the resistor terminations and to the dielectric substrate intermediate the resistor terminations. Terminal pads, conductor traces and resistor interconnections are printed on the dielectric substrate using ...