Invention Application
- Patent Title: Method for producing multiple magnetic layers of materials with known thickness and composition using a one-step electrodeposition process
- Patent Title (中): 使用一步电沉积工艺制备具有已知厚度和组成的多种材料磁性层的方法
-
Application No.: US10218011Application Date: 2002-08-12
-
Publication No.: US20040027715A1Publication Date: 2004-02-12
- Inventor: April Dawn Hixson-Goldsmith , Matthew Walter Last , Murali Ramasubramanian , Rolf Schaefer
- Applicant: INTERNATIONAL BUSINESS MACHINES
- Applicant Address: null
- Assignee: INTERNATIONAL BUSINESS MACHINES
- Current Assignee: INTERNATIONAL BUSINESS MACHINES
- Current Assignee Address: null
- Main IPC: G11B005/127
- IPC: G11B005/127 ; C25D005/02

Abstract:
A method for multi-layer electrodeposition in a single bath is also provided. A substrate is immersed in a bath. An electrodeposition operation is initiated for depositing a first layer of material on the substrate. The electrodeposition operation includes agitating the bath and applying current pulses. The electrodeposition operation is later altered for depositing a second layer of material on the first layer, where the second layer is of a different composition than the first layer. In the altered mode, the current density is changed for altering a composition of material deposited on the substrate, the duration and/or frequency of the current pulses are altered, and the bath is agitated at a different rate of agitation.
Public/Granted literature
Information query