Patent ID: 6556750
Filing Date: 2003-04-29
Classification: G02B,H01L,H03K

Abstract:
An integrated circuit that comprises:a package having a first side and a second side; a forward coupler included within the package, the forward coupler connected to receive DC electric signals at the first side of the package and to retransmit DC electric signals at the second side of the package; and a reverse coupler included within the package, the reverse coupler connected to receive DC electric signals at the second side of the package and to retransmit DC electric signals at the first side of the package; wherein the forward and reverse couplers each further comprise: a light emitting diode for converting an DC electric signal to optical radiation; and a phototransistor for reconverting the optical radiation to a DC electric signal wherein the light emitting diodes in the forward and reverse couplers are each positioned to be adjacent to the first side of the package.