Method for producing semiconductor device
Abstract:
A method for producing a semiconductor device includes a first step of forming a first insulating film around a fin-shaped semiconductor layer; a second step of forming a first pillar-shaped semiconductor layer, a first dummy gate, a second pillar-shaped semiconductor layer, and a second dummy gate; a third step of forming a third dummy gate and a fourth dummy gate; a fourth step of forming a third diffusion layer in an upper portion of the fin-shaped semiconductor layer, in a lower portion of the first pillar-shaped semiconductor layer, and in a lower portion of the second pillar-shaped semiconductor layer; a fifth step of forming a gate electrode and a gate line around the first pillar-shaped semiconductor layer and forming a contact electrode and a contact line around the second pillar-shaped semiconductor layer; and a sixth step of forming first to fifth contacts.
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