HIGH FREQUENCY MODULE
PROBLEM TO BE SOLVED: To provide a high frequency module having an ESD protection structure of simple structure with less impact on the electric performance.SOLUTION: In a high frequency module 100 including a circuit board 30 having a mounting surface 30a, a bottom face 30b facing each other and an...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a high frequency module having an ESD protection structure of simple structure with less impact on the electric performance.SOLUTION: In a high frequency module 100 including a circuit board 30 having a mounting surface 30a, a bottom face 30b facing each other and an inside layer 30d, an electronic component 41 mounted on the mounting surface 30a, a terminal electrode 11 for antenna connection provided on the bottom face 30b, and a via hole 17 provided in the circuit board 30 so as to connect the electronic component 41 and the terminal electrode 11, the via hole 17 is provided in the vicinity of the side end 30c of the circuit board 30, and in at least one layer of the mounting surface 30a, the bottom face 30b or the inside layer 30d, a discharge electrode 13 extending from the via hole 17 is provided, and a ground electrode 15 facing the discharge electrode 13 at a prescribed interval D1 is provided in a layer provided with the discharge electrode 13.SELECTED DRAWING: Figure 3
【課題】構造が簡単で電気性能への影響が少ないESD保護構造を有した高周波モジュールを提供する。【解決手段】互いに対向する実装面30a、底面30b及び内層30dを有する回路基板30と、実装面30aに実装された電子部品41と、底面30bに設けられたアンテナ接続用の端子電極11と、電子部品41と端子電極11とを接続するように回路基板30の内部に設けられたビアホール17と、を備えた高周波モジュール100であって、ビアホール17は、回路基板30の側端部30cの近傍に設けられており、実装面30a、底面30b又は内層30dのうちの少なくとも1つの層において、ビアホール17から延出する放電電極13が設けられており、放電電極13が設けられた層に、放電電極13と所定の間隔D1を隔てて対向する接地電極15が設けられている。【選択図】図3 |
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