摘要:
A patterned metal layer is gap filled with HSQ, an oxide formed thereon by PECVD, e.g., silicon dioxide derived from silane and N.sub.2 O, and planarized. The dielectric constant of the HSQ layer is minimized by baking the deposited HSQ layer in an inert atmosphere, e.g., N.sub.2, before heat soaking in an N.sub.2 O-containing atmosphere for no more than about 10 seconds and subsequent PECVD.
摘要:
Patterned metal layers are gap filled with HSQ and heat soaked in an oxidizing environment prior to oxide deposition by PECVD and planarization. Heat soaking is confined to less than about 10 seconds to minimize the dielectric constant of the HSQ layer.
摘要:
A method is provided for inserting dummy conductive channels along with the interconnected conductive channels. The dummy channels have an approximately even metal weight distribution to provide better plating uniformity, minimize CMP dishing, improve process heating uniformity, improve spin-on process properties, and increase etch and lithography uniformity.
摘要:
A low RC delay interconnection pattern is formed with a low resistivity metal, such as copper, and a low dielectric constant material, such as organic polymers. An intermediate bonding layer is formed between the low resistivity metal and low dielectric constant material employing an adhesion promoter, such as a silane-based adhesion promoter. The adhesion promoter can be applied between the metal and dielectric layers or incorporated in the dielectric layer.
摘要:
A low RC delay interconnection pattern is formed with a low resistivity metal, such as copper, and a low dielectric constant material, such as organic polymers. An intermediate bonding layer is formed between the low resistivity metal and low dielectric constant material employing an adhesion promoter, such as a silane-based adhesion promoter. The adhesion promoter can be applied between the metal and dielectric layers or incorporated in the dielectric layer.
摘要:
This invention comprises improvements in the ways in which spin-on dielectric layers are cured. A semiconductor wafer is coated with a precursor for a spin-on dielectric material, and after the solution is thinned and evened, the wafer is placed in a curing oven, optionally containing an inert gas, and pre-heated to a temperature below which excessive thermomechanical stresses and/or oxidation are not created in the semiconductor wafer. The temperature within the curing oven is then raised to a curing temperature, and thereafter the temperature is slowly lowered to prevent the formation of stress cracks and the loss of dielectric function of the thin film. The curing method of this invention is useful for the manufacture of semiconductor devices employing a variety of spin-on materials.
摘要:
Borderless vias are formed in electrical connection with a lower metal feature of a metal pattern gap filled with HSQ. Heat treatment in an inert atmosphere is conducted before filling the through-hole to outgas water absorbed during solvent cleaning of the through-hole, thereby reducing via void formation and improving via integrity.
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:
Data retention in flash memory devices, such as mirrorbit devices, is improved by reducing the generation and/or diffusion of hydrogen ions during back end processing, such as annealing inlaid Cu. Embodiments include annealing inlaid Cu in an N2 atmosphere containing low H2 or no H2, and at temperatures less than 200° C., e.g., 100° C. to 150° C.
摘要翻译:通过减少后端处理中的氢离子的产生和/或扩散(例如退火的Cu)来改善闪存器件(例如镜像位装置)中的数据保留。 实施方案包括在含有低H 2 N 2或无H 2 N的N 2 O 2气氛中以及在低于200℃的温度下退火嵌入的Cu, 例如,100℃至150℃
摘要:
Gap filling between features which are closely spaced is significantly improved by initially depositing a thin conformal layer followed by depositing a layer of gap filling dielectric material. Embodiments include depositing a thin conformal layer of silicon nitride or silicon oxide, as by atomic layer deposition or pulsed layer deposition, into the gap between adjacent gate electrode structures such that it flows into undercut regions of dielectric spacers on side surfaces of the gate electrode structures, and then depositing a layer of BPSG or P-HDP oxide on the thin conformal layer into the gap. Embodiments further include depositing the layers at a temperature less than 430° C., as by depositing a P-HDP oxide after depositing the conformal liner when the gate electrode structures include a layer of nickel silicide.