Patent ID: 11886118
Assignee: SHIN-ETSU CHEMICAL CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  C  H | IPC C  G  H

Claim 13:
14. A patterning process comprising:
forming an organic film by using the material for forming an organic film according to claim 1 on a body to be processed;
forming a silicon-containing resist middle layer film by using a silicon-containing resist middle layer film material on the organic film;
forming a resist upper layer film by using a photoresist composition on the silicon-containing resist middle layer film;
forming a circuit pattern in the resist upper layer film;
transferring the pattern to the silicon-containing resist middle layer film by etching the silicon-containing resist middle layer film while using the resist upper layer film having the formed pattern as a mask;
transferring the pattern to the organic film by etching the organic film while using the silicon-containing resist middle layer film having the transferred pattern as a mask; and
further transferring the pattern to the body to be processed by etching the body to be processed while using the organic film having the transferred pattern as a mask.