Patent ID: 6951784
Filing Date: 2005-10-04
Classification: H01L

Abstract:
1. A method of manufacturing a fin-type field effect transistor (FinFET), said method comprising: forming a modified H-shaped structure over a silicon layer structure, wherein said forming of said modified H-shaped structure includes forming alignment marks in said silicon layer structure separate from said modified H-shaped structure; transferring said modified H-shaped structure pattern into a silicon layer of said silicon layer structure, such that a portion of said silicon layer has said modified H-shaped structure that includes two opposing box-shaped structures connected by a fin; forming a gate conductor between said box-shaped structures of said silicon layer, wherein said gate conductor intersects said fin, and wherein said process of forming said gate conductor aligns said gate conductor with said modified H-shaped structure using said alignment marks; forming a gate sidewall spacer on said gate conductor, wherein said gate sidewall spacer is present only on said gate conductor and is not present on said modified H-shaped structure of said silicon layer; and growing additional silicon on said modified H-shaped structure of said silicon layer.