摘要:
A new method of depositing a copper layer, using disproportionation of Cu(I) ions from a solution stabilized by a polar organic solvent, for single and dual damascene interconnects in the manufacture of an integrated circuit device has been achieved. A dielectric layer, which may comprise a stack of dielectric material, is provided overlying a semiconductor substrate. The dielectric layer is patterned to form vias and trenches for planned dual damascene interconnects. A barrier layer is deposited overlying the dielectric layer to line the vias and trenches. A simple Cu(I) ion solution, stabilized by a polar organic solvent, is coated overlying said barrier layer. Water is added to the stabilized simple Cu(I) ion solution to cause disproportionation of the simple Cu(I) ion from the Cu(I) ion solution. A copper layer is deposited overlying the barrier layer. The copper layer may comprise a thin seed layer for use in subsequent electroplating or electroless plating of copper or may comprise a thick copper layer to fill the vias and trenches. The integrated circuit is completed.
摘要:
A method of cleaning elemental copper, cobalt, or nickel from the surface of equipment hardware without corroding or damaging the equipment parts and surfaces in the event of wafer breakage and non-wafer breakage is described. A solution comprising an alkyldione peroxide, a stabilizing agent, and alcohols is used to oxidize the metal and form soluble complexes which are removed by the cleaning solution. Also, a novel alkyldione peroxide solution for cleaning elemental copper, cobalt, or nickel from the surface of equipment hardware in the event of wafer breakage and non-wafer breakage is provided.
摘要:
A method and structure for forming a damascene structure with reduced capacitance by forming one or more of: the passivation layer, the etch stop layer, and the cap layer using a low dielectric constant material comprising carbon nitride, boron nitride, or boron carbon nitride. The method begins by providing a semiconductor structure having a first conductive layer thereover. A passivation layer is formed on the first conductive layer. A first dielectric layer is formed over the passivation layer, and an etch stop layer is formed over the first dielectric layer. A second dielectric layer is formed over the etch stop layer, and an optional cap layer can be formed over the second dielectric layer. The cap layer, the second dielectric layer, the etch stop layer, and the first dielectric layer are patterned to form a via opening stopping on said passivation layer and a trench opening stopping on the first conductive layer. A carbon nitride passivation layer, etch stop layer, or cap layer can be formed by magnetron sputtering from a graphite target in a nitrogen atmosphere. A boron nitride passivation layer, etch stop layer, or cap layer can be formed by PECVD using B.sub.2 H.sub.6, ammonia, and nitrogen. A boron carbon nitride passivatation layer, etch stop layer, or cap layer can be formed by magnetron sputtering from a graphite target in a nitrogen and B.sub.2 H.sub.6 atmosphere.
摘要:
A method for forming upon a reflective layer, such as a reflective conducting layer, within an integrated circuit an Anti-Reflective Coating (ARC) which simultaneously possesses adhesion promotion characteristics for an organic layer to be formed upon the reflective layer. There is first formed upon a semiconductor wafer a reflective integrated circuit layer which may be a hydrophilic reflective integrated circuit layer or a hydrophobic integrated circuit layer. The semiconductor wafer is then immersed into and withdrawn from a Langmuir trough having formed therein a Langmuir-Blodgett (LB) monolayer film of a dye surfactant molecule ordered upon a surface of water. Upon withdrawing the wafer from the Langmuir trough, there is formed upon the reflective integrated circuit layer an ordered LB film of the dye surfactant molecule. The chromophore groups within the dye surfactant molecule and ordered LB film provide ARC characteristics to the reflective layer.
摘要:
A method of forming an integrated circuit structure comprising the steps of forming a first and second device region on a surface of a wafer, forming a spacer of a first width on a sidewall of a first gate stack in the first device region, forming a spacer of a second width on a sidewall of a second gate stack in the second device region, with the first width being different from the second width.
摘要:
A method of forming an integrated circuit structure comprising the steps of forming a first and second device region on a surface of a wafer, forming a spacer of a first width on a sidewall of a first gate stack in the first device region, forming a spacer of a second width on a sidewall of a second gate stack in the second device region, with the first width being different from the second width.
摘要:
Interconnects for integrated circuits, such as damascene structures are formed using a hard mask. The hard mask is formed from, for example, high-k dielectric material such as hafnium oxide or other materials having high etch selectivity to the interconnect dielectric material. This enables a thin mask to etch vias and trenches in the interconnect dielectric layer, avoiding the problems associated with the use of thick mask layers, such as contact hole striations and small depth of focus, which can result in shorts or opens.
摘要:
A method for forming silicide contacts in integrated circuits (ICs) is described. A spacer pull-back etch is performed during the salicidation process to reduce the stress between the spacer and source/drain silicide contact at the spacer undercut. This prevents the propagation of surface defects into the substrate, thereby minimizing the occurrence of silicide pipe defects. The spacer pull-back etch can be performed after a first annealing step to form the silicide contacts.
摘要:
A semiconductor device that includes a substrate having an active region prepared with a transistor is presented. The semiconductor device includes a stress structure adjacent to the substrate. The stress structure includes a dielectric layer having nanocrystals embedded therein. The nanocrystals induce a first or a second stress on a channel region of the transistor which improves carrier mobility of the transistor.
摘要:
The present invention relates to poly(arylene ethers) used as low k dielectric layers in electronic applications and articles containing such poly(arylene ethers) comprising the structure: wherein n=5 to 10000 and monovalent Ar1 and divalent Ar2 are selected from a group of heteroaromatic compounds that incorporate O, N, Se, S, or Te or combinations of the aforesaid elements, including but not limited to:
摘要翻译:本发明涉及在电子应用中用作低k电介质层的聚(亚芳基醚)和含有这种聚(亚芳基醚)的制品,其包含以下结构:其中n = 5至10000和一价Ar 1和 二价Ar 2 H 2选自一组包含O,N,Se,S或Te的杂芳族化合物或上述组分的组合,包括但不限于: