Invention Grant
- Patent Title: On chip inductor with frequency dependent inductance
-
Application No.: US13771668Application Date: 2013-02-20
-
Publication No.: US08823136B2Publication Date: 2014-09-02
- Inventor: Hanyi Ding , Wayne H. Woods
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent Anthony J. Canale
- Main IPC: H01L21/48
- IPC: H01L21/48 ; H01L21/768 ; H01L21/3105

Abstract:
A set of metal line structures including a signal transmission metal line and a capacitively-grounded inductively-signal-coupled metal line is embedded in a dielectric material layer. A capacitor is serially connected between the capacitively-grounded inductively-signal-coupled metal line and a local electrical ground, which may be on the input side or on the output side. The set of metal line structures and the capacitor collective provide a frequency dependent inductor. The Q factor of the frequency dependent inductor has multiple peaks that enable the operation of the frequency dependent inductor at multiple frequencies. Multiple capacitively-grounded inductively-signal-coupled metal lines may be provided in the frequency-dependent inductor, each of which is connected to the local electrical ground through a capacitor. By selecting different capacitance values for the capacitors, multiple values of the Q-factor may be obtained in the frequency dependent inductor at different signal frequencies.
Public/Granted literature
- US20130161785A1 ON CHIP INDUCTOR WITH FREQUENCY DEPENDENT INDUCTANCE Public/Granted day:2013-06-27
Information query
IPC分类: