摘要:
A light emitting diode (LED) structure (10) has semiconductor layers, including a p-type layer, an active layer, and an n-type layer. The p-type layer has a bottom surface, and the n-type layer has a top surface through which light is emitted. Portions of the p-type layer and active layer are etched away to expose the n-type layer. The surface of the LED is patterned with a photoresist, and copper is plated over the exposed surfaces to form p and n electrodes electrically contacting their respective semiconductor layers. There is a gap between the n and p electrodes. To provide mechanical support of the semiconductor layers between the gap, a dielectric layer (34) is formed in the gap followed by filling the gap with a metal (42). The metal is patterned to form stud bumps (40, 42, 44) that substantially cover the bottom surface of the LED die, but do not short the electrodes. The substantially uniform coverage supports the semiconductor layer during subsequent process steps.
摘要:
A method of reducing electromigration in a dual-inlaid copper interconnect line (3) by filling a via (6) with a Cu-rich Cu—Zn alloy (30) electroplated on a Cu surface (200 from a stable chemical solution, and by controlling the Zn-doping thereof, which also improves interconnect reliability and corrosion resistance, and a semiconductor device thereby formed. The method involves using a reduced-oxygen Cu—Zn alloy as fill (30) for the via (6) in forming the dual-inlaid interconnect structure (35). The alloy fill (30) is formed by electroplating the Cu surface (20) in a unique chemical solution containing salts of Zn and Cu, their complexing agents, a pH adjuster, and surfactants, thereby electroplating the fill (30) on the Cu surface (20); and annealing the electroplated Cu—Zn alloy fill (30); and planarizing the Cu—Zn alloy fill (30), thereby forming the dual-inlaid copper interconnect line (35).
摘要:
A method of reducing electromigration in copper interconnect lines by restricting Cu-diffusion pathways along a Cu surface via doping the Cu surface with Zn from an interim copper-zinc alloy (Cu—Zn) thin film electroplated on the copper (Cu) surface from a stable chemical solution, and controlling the Zn-doping thereof, which also improves interconnect reliability and corrosion resistance, and a semiconductor device thereby formed. The method involves using interim reduced-oxygen Cu—Zn alloy thin films for forming an encapsulated dual-inlaid interconnect structure. The films are formed by electroplating a Cu surface via by electroplating, the Cu surface in a unique chemical solution containing salts of Zn and Cu, their complexing agents, a pH adjuster, and surfactants; and annealing the interim electroplated Cu—Zn alloy thin films and a Cu-fill; and planarizing the interconnect structure.
摘要:
A method for forming a single damascene and/or dual damascene, contact and interconnect structure, comprising: performing front end processing, depositing copper including a copper barrier, annealing the copper in at least 90% N2 with less than 10% H2, performing planarization, performing in-situ low-H NH3 plasma treatment and low Si—H SiN etch stop layer deposition, and performing remaining back end processing.
摘要:
A method of reducing electromigration in copper interconnect lines by restricting Cu-diffusion pathways along a Cu surface via doping the Cu surface with Zn from an interim copper-zinc alloy (Cu—Zn) thin film electroplated on the copper (Cu) surface from a stable chemical solution, and controlling the Zn-doping thereof, which also improves interconnect reliability and corrosion resistance, and a semiconductor device thereby formed. The method involves using interim reduced-oxygen Cu—Zn alloy thin films for forming an encapsulated dual-inlaid interconnect structure. The films are formed by electroplating a Cu surface via by electroplating, the Cu surface in a unique chemical solution containing salts of Zn and Cu, their complexing agents, a pH adjuster, and surfactants; and annealing the interim electroplated Cu—Zn alloy thin films and a Cu-fill; and planarizing the interconnect structure.
摘要:
The present memory device includes a substrate, a tunneling layer over the substrate, a floating gate over the tunneling layer, a dielectric over the floating gate and including silicon oxynitride, and a control gate over the dielectric. A method for fabricating such a memory device is also provided, including various approaches for forming the silicon oxynitride.
摘要:
The present memory device includes a substrate, a tunneling layer over the substrate, a floating gate over the tunneling layer, a dielectric over the floating gate and including silicon oxynitride, and a control gate over the dielectric. A method for fabricating such a memory device is also provided, including various approaches for forming the silicon oxynitride.
摘要:
A method for forming a single damascene and/or dual damascene, contact and interconnect structure, comprising: performing front end processing, depositing copper including a copper barrier, annealing the copper in at least 90% N2 with less than 10% H2, performing planarization, performing in-situ low-H NH3 plasma treatment and low Si—H SiN etch stop layer deposition, and performing remaining back end processing.
摘要:
The present invention relates to the semiconductor device fabrication industry. More particularly a semiconductor device, having an interim reduced-oxygen Cu—Zn alloy thin film (30) electroplated on a blanket Cu surface (20) disposed in a via (6) by electroplating, using an electroplating apparatus, the Cu surface (20) in a unique chemical solution containing salts of Zn and Cu, their complexing agents, a pH adjuster, and surfactants; and annealing the interim electroplated Cu—Zn alloy thin film (30); filling the via (6) with further Cu (26); annealing and planarizing the interconnect structure (35). The reduction of electromigration in copper interconnect lines (35) is achieved by decreasing the drift velocity in the copper line (35)/via (6), thereby decreasing the copper migration rate as well as the void formation rate, by using an interim conformal Cu-rich Cu—Zn alloy thin film (30) electroplated on a Cu surface (20) from a stable chemical solution, and by controlling the Zn-doping thereof, which improves also interconnect reliability and corrosion resistance.
摘要:
A method of fabricating a semiconductor device, having an interim reduced-oxygen Cu-Zn alloy thin film (30) electroplated on a blanket Cu surface (20) disposed in a via (6) by electroplating, using an electroplating apparatus, the Cu surface (20) in a unique chemical solution containing salts of Zn and Cu, their complexing agents, a pH adjuster, and surfactants; and annealing the interim electroplated Cu—Zn alloy thin film (30); filling the via (6) with further Cu (26); annealing and planarizing the interconnect structure (35); and a semiconductor device thereby formed. The reduction of electromigration in copper interconnect lines (35) is achieved by decreasing the drift velocity in the copper line (35)/via (6), thereby decreasing the copper migration rate as well as the void formation rate, by using an interim conformal Cu-rich Cu—Zn alloy thin film (30) electroplated on a Cu surface (20) from a stable chemical solution, and by controlling the Zn-doping thereof, which improves also interconnect reliability and corrosion resistance.