Method of making a planar charge coupled device with edge aligne

Details Method of making a planar charge coupled device with edge aligne Method of making a planar charge coupled device with edge aligne

1995-01-23

1996-09-17

Wilczewski, Mary

Fishing, trapping, and vermin destroying

437 53, H01L 21265, H01L 2170, H01L 2700

Patent

active

055568017

ABSTRACT:
A method of making a fully self-aligned, planar, two phase charge coupled device comprises the steps of first forming upon a semiconductive substrate a uniform insulative layer; then implanting ions of a second conductivity type into the substrate, then patterning closely spaced strips of a first conductive layer on the insulative layer, then further implanting ions of a second conductivity type in the regions between said first conductive strips, then depositing uniformly a second conductive layer electrically isolated from the first conductive strips, then entirely removing by uniform planarization those portions of the second conductive layer disposed over regions of the first conductive strips so as to form closely spaced, coplanar, alternating first and second electrically isolated conductive strips, then electrically connecting alternate pairs of strips by a planar process of depositing and oxidizing a conductive material.

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