Patent ID: 6448589
Filing Date: 2002-09-10
Classification: H01L

Abstract:
A semiconductor chip having opposing face surfaces, comprising:a connector block formed through said semiconductor chip between said opposing face surfaces; said connector block formed with a diffused dopant characterized by a diffusion constant of less than about 2Ã—10 âˆ’11 cm2/sec at about 1275Â° C., said dopant having an impurity concentration suitable for providing a low resistance conductor for circuit current; a first circuit formed in one face surface of the semiconductor chip; a first contact formed on said one face surface and electrically connected to said first circuit for carrying signal currents; a second circuit formed in the opposing face surface of the semiconductor chip, said connector block electrically connected to said second circuit for carrying signal currents; and a second contact formed on said one face surface and electrically connected to said connector block, whereby said first and second contacts are formed on the same face surface of said semiconductor chip.