Patent ID: 9252276
Filing Date: 2016-02-02
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a fin-shaped silicon layer on a silicon substrate; a first insulating film around the fin-shaped silicon layer; a pillar-shaped silicon layer on the fin-shaped silicon layer; a first diffusion layer in an upper portion of the fin-shaped silicon layer and in a lower portion of the pillar-shaped silicon layer; a second diffusion layer in an upper portion of the pillar-shaped silicon layer; a gate insulating film around the pillar-shaped silicon layer; a metal gate electrode around the gate insulating film; a metal gate line extending in a direction perpendicular to the fin-shaped silicon layer and connected to the metal gate electrode; a metal gate pad connected to the metal gate line; a contact on the metal gate line; and a nitride film on an entire top surface of the metal gate electrode and the metal gate line except the bottom of the contact and a nitride film on the sidewall of the metal gate electrode and gate line; wherein a vertical thickness of the nitride film on the entire top surface of the metal gate electrode and the metal gate line relative to the substrate is greater than a horizontal thickness of the nitride film on the sidewall of the metal gate electrode and gate line relative to the substrate, and wherein a height of the top surface of the metal gate electrode is equal to a height of the top surface of the metal gate line relative to the substrate.