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Title:
HIGH FREQUENCY PACKAGE MODULE
Document Type and Number:
Japanese Patent JP3837699
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To prevent cracks on a dielectric substrate and resonance between input and output lines, and to improve the radiation characteristics of a semiconductor circuit chip in a high frequency package module with the flip chip package of semiconductor circuit chips.
SOLUTION: In the high frequency package module with the flip chip package of semiconductor circuit chips 1 on a dielectric substrate 3, on the surface of the dielectric substrate 3 opposite to the surface to package the semiconductor circuit chip 1 and in the area opposed to the semiconductor circuit chip 1, a plurality of land patterns 8 are formed in the size of ≤1/2 wavelength λof the operating frequency of the semiconductor circuit chip 1 and in the area of the dielectric substrate 3 to package the semiconductor circuit chip 1, and a plurality of through holes filled with metals can be formed at the interval of ≤λ/4.


Inventors:
Toshihiro Shimura
Yoji Ohashi
Application Number:
JP2001268330A
Publication Date:
October 25, 2006
Filing Date:
September 05, 2001
Export Citation:
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Assignee:
富士通株式会社
International Classes:
H01L23/12; (IPC1-7): H01L23/12
Domestic Patent References:
JP2002334952A
JP2000022042A
Attorney, Agent or Firm:
Manabe Kiyoshi
Shoji Kashiwaya
Koichi Watanabe
Toshiro Ito