The present invention provides an epoxy resin composition for sealing that demonstrates favorable adhesion to a copper lead frame in which oxidation has progressed and has superior mold release and continuous moldability. The quadrature RF power detector circuit includes an emitter follower amplifier for each leg of the quadrature RF power amplifier and may include doubler circuitry to detect both half-cycles of an RF signal. These formulations typically require a mixture of glycosoaminoglycans and collagen proteins. A timing analysis tool then performs multiple depth-first search operations to compute delays along time critical paths relevant to the user specified timing constraints.