Patent ID: 11942322
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A method of manufacturing a semiconductor device, comprising:
forming a metallic photoresist layer over a target layer to be patterned;
selectively exposing the metallic photoresist layer to actinic radiation to form a latent pattern; and
developing the latent pattern by applying a developer to the selectively exposed photoresist layer to form a pattern,
wherein the metallic photo resist layer includes two or more layers of a first layer made of a first metal element and a second layer made of a second metal element different from the first metal element, and
the selective exposure converts exposed portions of the two or more layers into an alloy layer of the first metal element and the second metal element.