摘要:
In a method of manufacturing a semiconductor device including a capacitor, a refractory metal layer is dry-etched using a resist pattern as a mask, whereby a first electrode pattern formed of refractory metal is provided. Sidewall of the first electrode pattern is cleaned using aqueous solution of a surface active agent. Through this procedure, etching residue formed on the sidewall of the electrode pattern is removed when the electrode pattern of refractory metal is produced through dry etching method.
摘要:
The cleaning composition for removing resists includes a salt of hydrofluoric acid and a base not containing a metal (A component), a water-soluble organic solvent (B1 component), at least one organic acid or inorganic acid (C component), water (D component), and, optionally, an ammonium salt (E1 component), and having a pH 4-8. Thus, in manufacturing a semiconductor device, such as a copper interconnecting process, efficiency of removing resist residue and other etching residue after etching or ashing is improved, and corrosion resistance of a copper and an insulating film is also improved.
摘要:
A semiconductor device is provided wherein stacked semiconductor substrates are electrically coupled together in a satisfactory state by a conductor buried in the interior of a through hole. A first semiconductor substrate includes a substrate having main surfaces, further includes a semiconductor element formed within and over the substrate, a wiring coupled to the semiconductor element electrically, and a conductive layer formed in the interior of a through hole, the through hole extending through mutually confronting first and second main surfaces as the main surfaces of the substrate and reaching the wiring. The first semiconductor substrate and a second semiconductor substrate are stacked and the conductive layer is coupled to a wiring of the second semiconductor substrate electrically. In a second main surface of the conductive layer, a recess is formed around an end portion of the through hole so that a bottom wall surface of the recess is present in the interior of the substrate. A conductive material which constitutes the conductive layer is filled in the interior of the recess.
摘要:
In a semiconductor device manufacturing method of the invention, a metal film, for forming a gate electrode, is formed on a gate insulating film. Subsequently, when the metal film is processed, part of the metal film is removed by a wet etching process using a given chemical liquid.
摘要:
The present invention is directed to providing an apparatus which is improved so as to remove a contamination on a substrate efficiently. This apparatus includes a jet nozzle jetting out droplets toward a substrate. A liquid supply device and a gas supply device are connected to the jet nozzle. A mixing device mixing a liquid and a gas supplied to the jet nozzle and changing the liquid into the droplets is provided in the jet nozzle.
摘要:
Obtained are a washing apparatus inhibiting a washing liquid from losing its washability and a method therefor. A circulating pump (5) circulates a washing liquid (3) successively through a heater (6), a filter (7), and an overflow washing tank (2). The washing liquid (3) is gradually evaporated. On the other hand, a water supplier (10) supplies the overflow washing tank (2) with water through a tube (8). An amine supplier (11) supplies the overflow washing tank (2) with amines through a tube (9). A control unit (12) controls the quantities of the water and amines as supplied. In a washing part (50), therefore, the quantities of the water and amines are inhibited from being reduced upon a lapse of time from operation starting, whereby the washing liquid (3) is inhibited from losing its washability.
摘要:
A semiconductor device having Cu wiring including a basic crystal structure which can reduce surface voids, and an inspecting technique for the semiconductor device. In the semiconductor device, surface voids can be reduced down to 1/10 or less of a current practical level by specifying a barrier layer and a seed layer and setting a proportion (frequency) of occupation of a coincidence site lattice (CSL) boundary having a grain boundary Sigma value 27 or less to all crystal grain boundaries of a Cu wiring to 60% or higher. Alternatively, a similar effect of surface void reduction can be obtained by specifying a barrier layer and a seed layer and setting a proportion (frequency) of occupation of a coincidence site lattice (CSL) boundary having a grain boundary Sigma value 3 to all crystal grain boundaries of a Cu wiring to 40% or higher.
摘要:
A manufacturing method of a semiconductor device is provided which can improve the performance of the semiconductor device. Ion implantation is applied to nMIS regions 1A and 1B and pMIS regions 1C and 1D of a semiconductor substrate 1 with offset spacers formed over sidewalls of gate electrodes GE1, GE2, GE3, and GE4 to thereby form extension regions for source and drain. In this case, a different photoresist pattern is used for each of the nMIS regions 1A and 1B and the pMIS regions 1C and 1D to individually perform the corresponding ion implantation. Every time the photoresist pattern is re-created, the offset spacer is also re-created.
摘要:
There is provided a method for cleaning a semiconductor device capable of making compatible the inhibition of dissolution of a gate metal material and the acquisition of a favorable contact resistance. A method for cleaning a semiconductor device includes steps: a semiconductor substrate including silicon, and having a main surface is prepared; a multilayer gate including a metal layer and a silicon layer stacked sequentially from the bottom is formed over the main surface; a silicide layer is formed over the main surface and the silicon layer surface; an insulation layer is formed over the silicide layer in each of the main surface and the multilayer gate surface; a shared contact hole is formed in the insulation layer in such a manner that the silicide layer in the main surface of the semiconductor substrate and the surface of the multilayer gate is exposed from the insulation layer; and the shared contact hole is subjected to sulfuric acid cleaning, aqueous hydrogen peroxide cleaning, and APM cleaning separately, respectively, thereby to remove an altered layer formed in the shared contact hole.
摘要:
An object of the present is to uniform particle diameters and speeds of liquid droplets in a two-fluid nozzle for cleaning substrates which mixes gas and liquid internally and injects liquid droplets with gas so as to clean a substrate. The two-fluid nozzle for cleaning substrates has a gas supply passage for supplying gas, a liquid supply passage for supplying liquid, and a lead-out passage for leading out internally-formed liquid droplets, wherein an injection port for injecting liquid droplets to the outside is formed at the front end of the lead-out passage, and wherein a cross-sectional area Sb of the injection port is formed smaller than a cross-sectional area Sa of the lead-out passage, and a cross sectional area Sc of an exit of the gas supply passage is formed smaller than the cross-sectional area Sa of the lead-out passage.