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Physical vapor deposition in-chamber electro-magnet

專(zhuān)利號(hào)
US10867776B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
Applied Materials, Inc.(US CA Santa Clara)
發(fā)明人
Brian T. West; Michael S. Cox; Miroslav Gelo; Dinkesh Huderi Somanna
IPC分類(lèi)
H01J37/32; H01J37/34; C23C14/56; H01L21/285; C23C14/04
技術(shù)領(lǐng)域
pvd,coil,chamber,dc,in,portion,deposition,power,substrate,sputtering
地域: CA CA Santa Clara

摘要

A PVD chamber deposits a film with high thickness uniformity. The PVD chamber includes a coil of an electromagnetic that, when energized with direct current power, can modify plasma in an edge portion of the processing region of the PVD chamber. The coil is disposed within the vacuum-containing portion of the PVD chamber and outside a processing region of the PVD chamber.

說(shuō)明書(shū)

BRIEF DESCRIPTION OF THE DRAWINGS

So that the manner in which the above recited features of the present disclosure can be understood in detail, a more particular description of the disclosure, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only exemplary embodiments and are therefore not to be considered limiting of its scope, and may admit to other equally effective embodiments.

FIG. 1 is a schematic cross-sectional illustration of a physical vapor deposition (PVD) chamber, according to various embodiments of the present disclosure.

FIG. 2 is a schematic cross-sectional illustration of coil portion of an electromagnet, in which the coil portion is mounted on a surface of one of the deposition shields of the PVD chamber of FIG. 1, according to various embodiments of the present disclosure.

FIG. 3 is a schematic cross-sectional illustration of a coil portion of an electromagnet and an associated annular structure that enables cooling of the coil portion via a cooling liquid, according to various embodiments of the present disclosure.

FIG. 4 is a schematic cross-sectional illustration of a coil portion of an electromagnet and an electrical lead connected thereto, according to embodiments of the present disclosure.

FIG. 5 schematically illustrates adjacent portions of two separately powered coils disposed within a PVD chamber, according to an embodiment of the present disclosure.

權(quán)利要求

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