Invention Application
- Patent Title: HEEL FILLET CAPACITOR WITH NOISE REDUCTION
- Patent Title (中): 具有噪音降低功能的HEEL FILLET CAPACITOR
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Application No.: US14500794Application Date: 2014-09-29
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Publication No.: US20150364253A1Publication Date: 2015-12-17
- Inventor: Shawn X. Arnold , Dennis R. Pyper , Gang Ning , Meng Chi Lee , Sascha Tietz , Sury N. Darbha , Zhong-Qing Gong
- Applicant: Apple Inc.
- Main IPC: H01G2/06
- IPC: H01G2/06 ; G10K11/16 ; H01G4/12 ; H05K3/34 ; H05K1/18

Abstract:
Apparatus and methods are described for coupling a circuit component having piezoelectric properties, such as a ceramic capacitor, to a printed circuit board (PCB) by forming a first solder heel fillet and a second solder heel fillet that fixedly couple the circuit component to the PCB, where the first and second solder heel fillets have a height z that is less than a height h of the circuit component to reduce acoustic noise at the PCB caused by coupling the circuit component to the PCB. In various configurations, the first solder heel fillet and the second solder heel fillet can each fixedly coupled to: a bottom surface of the circuit component, a top surface of the PCB at a first solder pad and a second solder pad thereof, and a lower portion of each of a multiple side surfaces of the circuit component.
Information query