Invention Application
US20090090617A1 Method and Apparatus for Producing Controlled Stresses and Stress Gradients in Sputtered Films
审中-公开
在溅射膜中产生受控应力和应力梯度的方法和装置
- Patent Title: Method and Apparatus for Producing Controlled Stresses and Stress Gradients in Sputtered Films
- Patent Title (中): 在溅射膜中产生受控应力和应力梯度的方法和装置
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Application No.: US11995490Application Date: 2006-07-14
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Publication No.: US20090090617A1Publication Date: 2009-04-09
- Inventor: Pierre H. Giauque , Fu Chiung Chong , Frank Swiatowiec , Donald Smith
- Applicant: Pierre H. Giauque , Fu Chiung Chong , Frank Swiatowiec , Donald Smith
- International Application: PCT/US06/27423 WO 20060714
- Main IPC: C23C14/34
- IPC: C23C14/34 ; C23C14/54

Abstract:
An enhanced sputtered film processing system and associated method comprises one or more sputter deposition sources each having a sputtering target surface and one or more side shields extending therefrom, to increase the relative collimation of the sputter deposited material, such as about the periphery of the sputtering target surface, toward workpiece substrates. One or more substrates are provided, wherein the substrates have a front surface and an opposing back surface, and may have one or more previously applied layers, such as an adhesion or release layer. The substrates and the deposition targets are controllably moved with respect to each other. The relatively collimated portion of the material sputtered from the sputtering target surface travels beyond the side shields and is deposited on the front surface of the substrates. The increase in relative collimation results in deposited films with desirable properties including but not limited to high levels of both readily controllable compressive stress and mechanical integrity without the use of ion bombardment.
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