公开(公告)号：EP1620891A4

公开(公告)日：2007-03-28

申请号：EP04707026

申请日：2004-01-30

Applicant: IBM

Inventor： RAINEY BETH ANN ,  NOWAK EDWARD J ,  ALLER INGO DR ,  KEINERT JOACHIM ,  LUDWIG THOMAS

IPC: H01L21/84 ,  H01L21/336 ,  H01L21/8238 ,  H01L27/12 ,  H01L29/04 ,  H01L29/786

CPC classification number: H01L29/785 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/045 ,  H01L29/66795

Abstract: The present invention provides a FinFET device that has a first fin and a second fin. Each fin has a channel region and source and drain regions that extend from the channel region. The fins have different heights. The invention has a gate conductor positioned adjacent the fins. The gate conductor runs perpendicular to the fins and crosses the channel region of each of the first fin and second fin. The fins are parallel to one another. The ratio of the height of the first fin to the height of the second fin comprises a ratio of one to 2/3. The ratio is used to tune the performance of the transistor and determines the total channel width of the transistor.