US2017170176A1PendingUtilityA1

Method of cutting fins to create diffusion breaks for finfets

Assignee: IBMPriority: Dec 9, 2015Filed: Jan 10, 2017Published: Jun 15, 2017
Est. expiryDec 9, 2035(~9.4 yrs left)· nominal 20-yr term from priority
H10P 50/285H10P 50/73H10P 14/3411H01L 29/66545H01L 29/6656H01L 29/66795H01L 29/785H01L 21/31122H01L 27/0886H01L 21/31144H10D 84/0158H10D 84/0151H10D 84/038H10D 64/021H10D 64/017H10D 30/62H10D 30/024H10D 84/834
50
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0
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Claims

Abstract

A method is provided for forming an integrated circuit with FinFETs. Initially, a fin is received with a dummy gate passing thereover. The dummy gate is removed to form a space over the fin. A temporary layer is subsequently placed in the space, and an element from the temporary layer is caused to pass into a portion of the fin to form a modified fin portion. After the temporary layer is removed, at least part of the modified fin portion is etched away to form a gap in the fin.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An integrated circuit comprising:
 a gate;   a first fin portion ending in a first terminus; and   a second fin portion lined up with the first fin portion and ending in a second terminus;   wherein the first terminus and the second terminus are separated by about a width of the gate.   
     
     
         2 . The integrated circuit of  claim 1 , further comprising:
 a first sidewall spacer abutting the first terminus; and   a second sidewall spacer abutting the second terminus.

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