Patent ID: 7547622

Claim:
A method for fabricating CCD imaging structures comprising the steps of; providing a silicon substrate; growing a dielectric layer overlying the silicon substrate; depositing a first layer of polysilicon overlying the dielectric layer; removing at least a portion of the first layer of polysilicon to form a plurality of polysilicon gates and first predetermined inter-gate gaps, each of plurality of the polysilicon gates having a predetermined line width; depositing a second layer of polysilicon of a predetermined thickness overlying the plurality of polysilicon gates and the first predetermined inter-gate gaps; and removing at least a portion of the second layer of polysilicon from between gates of the plurality of polysilicon gates to define a plurality of non-overlapping polysilicon gates and second predetermined inter-gate gaps that expose the dielectric layer, the second predetermined inter-gate gaps being smaller than the first predetermined inter-gate gaps.