The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2016
Filed:
Mar. 19, 2010
Maolin Long, Cupertino, CA (US);
Seyed Jafar Jafarian-tehrani, Fremont, CA (US);
Maolin Long, Cupertino, CA (US);
Seyed Jafar Jafarian-Tehrani, Fremont, CA (US);
Lam Research Corporation, Fremont, CA (US);
Abstract
A plasma processing system for generating plasma to process at least a wafer. The plasma processing system may include a first coil for conducting a first current for sustaining at least a first portion of the plasma. The plasma processing system may also include a second coil for conducting a second current for sustaining at least a second portion of the plasma. The plasma processing system may also include a power source for powering the first current and the second current. The plasma processing system may also include a parallel circuit for adjusting one of the amperage of the first current and the amperage of the second current. The parallel circuit may be electrically coupled between the power source and at least one of the first coil and the second coil. The parallel circuit may include an inductor and a variable capacitor electrically connected in parallel to each other.