Patent ID: 7145413

Claim:
An integrated circuit chip, comprising: at least one signal contact pad exposed at an exterior of said chip for conductively interconnecting said chip with an external microelectronic element; at least one of a receiver or a transmitter; a transmission line coupled in a conductive path between said at least one signal contact pad and said at least one of a receiver or transmitter; a programmably adjustable impedance matching circuit coupled to said transmission line for improving integrity of a signal carried by said transmission line, said impedance matching circuit including an inductive element having a programmable inductance value adjustable in response to a first control input and a resistive element having a programmable resistance value adjustable in response to a second control input, said programmable resistance value being adjustable independently from said programmable inductance value; and programming means for supplying said first and second control inputs to said impedance matching circuit for adjusting said programmable inductance value and said programmable resistance value.