Invention Grant
- Patent Title: Semiconductor structure incorporating multiple nitride layers to improve thermal dissipation away from a device and a method of forming the structure
- Patent Title (中): 结合了多个氮化物层以提高远离器件的散热的半导体结构和形成该结构的方法
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Application No.: US12638004Application Date: 2009-12-15
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Publication No.: US08053870B2Publication Date: 2011-11-08
- Inventor: Brent A. Anderson , Joseph M. Lukaitis , Jed H. Rankin , Robert R. Robison
- Applicant: Brent A. Anderson , Joseph M. Lukaitis , Jed H. Rankin , Robert R. Robison
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Gibb I.P. Law Firm, LLC
- Agent Richard M. Kotulak, Esq.
- Main IPC: H01L23/58
- IPC: H01L23/58

Abstract:
Disclosed are embodiments of a semiconductor structure that incorporates multiple nitride layers stacked between the center region of a device and a blanket oxide layer. These nitride layers are more thermally conductive than the blanket oxide layer and, thus provide improved heat dissipation away from the device. Also disclosed are embodiments of a method of forming such a semiconductor structure in conjunction with the formation of any of the following nitride layers during standard processing of other devices: a nitride hardmask layer (OP layer), a “sacrificial” nitride layer (SMT layer), a tensile nitride layer (WN layer) and/or a compressive nitride layer (WP layer). Optionally, the embodiments also incorporate incomplete contacts that extend through the blanket oxide layer into one or more of the nitride layers without contacting the device in order to further improve heat dissipation.
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