Invention Grant
- Patent Title: Stack inductor with different metal thickness and metal width
- Patent Title (中): 堆叠电感器具有不同的金属厚度和金属宽度
-
Application No.: US12958080Application Date: 2010-12-01
-
Publication No.: US08441333B2Publication Date: 2013-05-14
- Inventor: Tzuyin Chiu , Xiangming Xu , Miao Cai
- Applicant: Tzuyin Chiu , Xiangming Xu , Miao Cai
- Applicant Address: CN Shanghai
- Assignee: Shanghai Hua Hong NEC Electronics Company, Limited
- Current Assignee: Shanghai Hua Hong NEC Electronics Company, Limited
- Current Assignee Address: CN Shanghai
- Agency: Sinorica, LLC
- Agent Ming Chow
- Priority: CN200910201904 20091208
- Main IPC: H01F5/00
- IPC: H01F5/00 ; H01F27/28
Abstract:
A stacked inductor with different metal thickness and metal width. The stacked inductor comprises top and bottom metal traces which are aligned with each other. The thickness and width of the top and bottom metal traces are different. The top and bottom metal traces are connected at the end of metal trace with via holes. The inductance is increased with the use of the mutual inductance between top and bottom metal layers The parasitic resistor is reduced due to the difference of the top and bottom metal widths.
Public/Granted literature
- US20110133875A1 Stack inductor with different metal thickness and metal width Public/Granted day:2011-06-09
Information query
