摘要:
Disclosed is a semiconductor device production method, which comprises the steps of: forming a pillar-shaped first-conductive-type semiconductor layer on a planar semiconductor layer; forming a second-conductive-type semiconductor layer in a portion of the planar semiconductor layer underneath the pillar-shaped first-conductive-type semiconductor layer; forming a gate dielectric film and a gate electrode having a laminated structure of a metal film and an amorphous silicon or polysilicon film, around the pillar-shaped first-conductive-type semiconductor layer; forming a sidewall-shaped dielectric film on an upper region of a sidewall of the pillar-shaped first-conductive-type semiconductor layer and in contact with a top of the gate electrode; forming first and second sidewall-shaped dielectric films on a sidewall of the gate electrode; forming a second-conductive-type semiconductor layer in an upper portion of the pillar-shaped first-conductive-type semiconductor layer; forming a metal-semiconductor compound on the second-conductive-type semiconductor layer formed in the portion of the planar semiconductor layer underneath the pillar-shaped first-conductive-type semiconductor layer; forming a metal-semiconductor compound on the second-conductive-type semiconductor layer formed in the upper portion of the pillar-shaped first-conductive-type semiconductor layer; forming a metal-semiconductor compound on the gate electrode; forming a contact on the second-conductive-type semiconductor layer formed in the portion of the planar semiconductor layer underneath the pillar-shaped first-conductive-type semiconductor layer; and forming a contact on the second-conductive-type semiconductor layer formed in the upper portion of the pillar-shaped first-conductive-type semiconductor layer.
摘要:
It is intended to provide an SGT production method capable of obtaining a structure for reducing a resistance of a source, drain and gate, a desired gate length, desired source and drain configurations and a desired diameter of a pillar-shaped semiconductor to be obtained. The method comprises the steps of: forming a pillar-shaped first-conductive-type semiconductor layer; forming a second-conductive-type semiconductor layer underneath the pillar-shaped first-conductive-type semiconductor layer; forming a dummy gate dielectric film and a dummy gate electrode around the pillar-shaped first-conductive-type semiconductor layer; forming a first dielectric film on an upper region of a sidewall of the pillar-shaped first-conductive-type semiconductor layer and in contact with a top of the gate electrode, through a gate dielectric film; forming a first dielectric film on a sidewall of the gate electrode; forming a second-conductive-type semiconductor layer in an upper portion of the pillar-shaped first-conductive-type semiconductor layer; forming a metal-semiconductor compound on each of the second-conductive-type semiconductor layers formed in the upper portion of and underneath the pillar-shaped first-conductive-type semiconductor layer; removing the dummy gate dielectric film and the dummy gate electrode and forming a high-k gate dielectric film and a metal gate electrode.
摘要:
A manufacturing method of a thin film transistor and a display device using a small number of masks is provided. A first conductive film, an insulating film, a semiconductor film, an impurity semiconductor film, and a second conductive film are stacked. Then, a resist mask having a recessed portion is formed thereover using a multi-tone mask. First etching is performed to form a thin-film stack body, and second etching in which the thin-film stack body is side-etched is performed to form a gate electrode layer. The resist is made to recede, and then, a source electrode, a drain electrode, and the like are formed; accordingly, a thin film transistor is manufactured.
摘要:
High-speed MOS transistors (32) are provided by forming a conductive layer (24) embedded in transistor gate sidewall spacers (27). The embedded conductive layer (24) is electrically insulated from the gate electrode (18) and the source/drain regions (28) of the transistor (32). The embedded conductive layer (24) is positioned over the source/drain extensions (30) and causes charge to accumulate in the source/drain extensions (30) lowering the series resistance of the source/drain regions (28).
摘要:
A dual workfunction semiconductor device comprising a first gate stack and a second gate stack, having different workfunctions; wherein the first gate stack comprises a second metal electrode overlying a second dielectric capping layer, overlying a barrier metal electrode, the barrier metal electrode overlying a first metal electrode layer, overlying the dielectric host layer, the dielectric host layer overlying a first dielectric capping layer, overlying the semiconductor substrate in the first region and wherein the second gate stack comprises a second metal electrode overlying a second dielectric capping layer, overlying the first metal electrode, the first metal electrode overlying the dielectric host layer, overlying the semiconductor substrate in the second region and wherein the second metal electrode layer consists of the same metal composition as the first metal electrode layer. Also a method for forming a dual workfunction device is disclosed.
摘要:
A wiring film having excellent adhesion and a low resistance is formed. A barrier film 22 having copper as a main component and containing oxygen is formed on an object 21 to form a film thereon by introducing an oxygen gas into a vacuum chamber 2 in which the object 21 to form a film thereon and sputtering a pure copper target 11. Then, after the introduction of the oxygen gas is stopped, a low-resistance film 23 made of pure copper is formed by sputtering the pure copper target 11. Since the barrier film 22 and the low-resistance film 23 have copper as the main component, they can be patterned at a time. Since the low-resistance film 23 has a resistance lower than that of the barrier film 22, the resistance of the whole wiring film 25 is reduced. Since the barrier layer 22 has high adhesion to glass and silicon, the whole wiring film 25 has high adhesion.
摘要:
L'invention concerne un procédé de fabrication d'un dispositif semi-conducteur comportant une région semi-conductrice de canal et une région de grille, la région de grille comprenant au moins une partie enterrée s'étendant sous la région de canal. La formation de la partie enterrée de la région de grille comprend : - une formation d'une cavité sous la région de canal, - le remplissage de la cavité par un premier matériau, - la mise en contact avec le premier matériau, d'aluminium ou d'un deuxième matériau semi-conducteur différent du premier, - une substitution du premier matériau par l'aluminium, ou la diffusion du second matériau semi-conducteur dans le premier matériau.