Abstract: A semiconductor radiation detection crystal converts incident radiation or an incident particle into an electrical signal. A first substrate for conveying the electrical signal to processing electronics is bonded to the crystal via an anisotropic conductive material sandwiched therebetween. The crystal can include can array of pixels which are positioned in opposition with an array of conductive pads formed on the first substrate. The anisotropic conductive material forms between each pixel and its corresponding conductive pad an electrical path, with each electrical path isolated from other electrical paths.

Abstract: An anisotropic conductive compound includes an electrically conducting material suspended in a binder. The electrically conducting material includes nickel coated particles having a coating of silver or gold over the nickel coat and/or gold or silver coated nickel particles. In one embodiment, the binder is formed from the reaction product of a catalyst and a compound comprising an aromatic epoxy resin, a dimer fatty acid diglycidyl ester and oxirane. In another embodiment, the binder is formed from the reaction product of a novalac resin, a catalyst and either a heat polymerized aromatic epoxy resin or a phenoxy modified epoxy novalac resin.