Patent ID: 6180430
Filing Date: 2001-01-30
Classification: G02F

Abstract:
A method of fabricating an LCD-on-silicon device, comprising the steps of:a) providing a semiconductor structure having a control transistor formed therein; said control transistor having a source and a drain;b) providing an interlevel dielectric (ILD) layer over said semiconductor structure;c) providing S/D plugs contacting said source and drain through contact openings in said ILD layer;d) forming M1 lines over said ILD layer and connected to at least said S/D plugs;e) depositing and patterning an M1 intermetal dielectric (IMD) layer over said M1 lines to form M1 contact openings exposing at least some of said M1 metal lines;f) forming M1 metal plugs within said M1 contact openings and M2 metal islands connected to at least said M1 metal plugs; said M2 metal islands having exposed side walls;g) forming sidewall spacers on said exposed M2 metal islands side walls;h) depositing and planarizing an M2 metallization layer over said M2 metal islands to form a shielding layer adjacent to and contiguous with said sidewall spacers; said M2 metal islands, sidewall spacers, and shielding layer forming a light shielding layer;i) forming at least one additional dielectric and conductive layer over said light shielding layer and said M1 intermetal dielectric (IMD) layer; andj) forming LCD pixels thereover.