JP2006041931A - High-frequency module - Google Patents

High-frequency module Download PDF

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Publication number
JP2006041931A
JP2006041931A JP2004218953A JP2004218953A JP2006041931A JP 2006041931 A JP2006041931 A JP 2006041931A JP 2004218953 A JP2004218953 A JP 2004218953A JP 2004218953 A JP2004218953 A JP 2004218953A JP 2006041931 A JP2006041931 A JP 2006041931A
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circuit board
frequency module
crystal resonator
crystal unit
crystal
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JP2004218953A
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Japanese (ja)
Inventor
Makoto Abe
誠 阿部
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Mitsumi Electric Co Ltd
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Mitsumi Electric Co Ltd
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Priority to JP2004218953A priority Critical patent/JP2006041931A/en
Publication of JP2006041931A publication Critical patent/JP2006041931A/en
Pending legal-status Critical Current

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  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To promote miniaturization of a high-frequency module and to achieve reduction in cost. <P>SOLUTION: A crystal vibrator 6 is attached on the side face of a circuit board 2 of the high-frequency module 1 to reduce the circuit board 2 in size, thereby miniaturizing the high-frequency module. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は高周波モジュールに関するものであり、特に、小型化を実施した高周波モジュールに関するものである。   The present invention relates to a high-frequency module, and more particularly to a high-frequency module that has been reduced in size.

従来の高周波モジュールは水晶振動子とIC、LCR等の受動部品で構成されている。而して、該受動部品は基板にセラミック材料を使用しているため内蔵化が進み、搭載部は減少傾向にある。又、ICについてもRFやBB、メモリ等が1個のチップに形成されてきているので、高周波モジュールのサイズを決定するのはICと水晶振動子の大きさであり、該二つの部品を並べたサイズより小型化するには限界があった。この従来の高周波モジュールを特許文献1により説明すれば、該高周波モジュールは回路基板の上面にICや水晶振動子の他、各種電子部品が搭載されている。そして、該高周波モジュールより所定の周波数の信号が発振されて各種電子機器の電子的タイミングを制御している。
特開平06−275986号
A conventional high-frequency module is composed of a crystal resonator and passive components such as an IC and an LCR. Thus, since the passive component uses a ceramic material for the substrate, it is increasingly built in, and the number of mounting parts tends to decrease. Since IC, RF, BB, memory, etc. are formed on a single chip, the size of the high frequency module is determined by the size of the IC and the crystal unit. There was a limit to making it smaller than the original size. If this conventional high-frequency module is described in Patent Document 1, the high-frequency module has various electronic components mounted on the upper surface of a circuit board in addition to an IC and a crystal resonator. A signal having a predetermined frequency is oscillated from the high-frequency module to control the electronic timing of various electronic devices.
JP 06-275986 A

上述した従来の高周波モジュールは、回路基板の上面にIC及び水晶振動子を搭載している。しかし、該IC及び水晶振動子を搭載することにより該高周波モジュールの回路基板が拡大され、該高周波モジュールの小型化に支障を来している。そこで、該高周波モジュールの小型化を促進するために解決すべき技術的課題が生じてくるのであり、本発明はこの課題を解決することを目的とする。   The conventional high-frequency module described above has an IC and a crystal resonator mounted on the upper surface of a circuit board. However, the circuit board of the high-frequency module is enlarged by mounting the IC and the crystal resonator, which hinders the miniaturization of the high-frequency module. Therefore, a technical problem to be solved in order to promote the miniaturization of the high-frequency module arises, and the present invention aims to solve this problem.

本発明は上記目的を達成するために提案されたものであり、請求項1記載の発明は回路基板にIC及び水晶振動子等を実装し、該IC及び水晶振動子により所定の周波数の信号を出力できるように構成した高周波モジュールに於いて、該回路基板の上面にICを搭載すると共に、該回路基板の側面に該水晶振動子を装着した高周波モジュールを提供する。   The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 mounts an IC and a crystal unit on a circuit board, and outputs a signal of a predetermined frequency by the IC and the crystal unit. In a high-frequency module configured to be able to output, a high-frequency module is provided in which an IC is mounted on an upper surface of the circuit board and the crystal unit is mounted on a side surface of the circuit board.

この構成によれば、水晶振動子を回路基板の側面に装着したことから、該回路基板の長さが短縮される。   According to this configuration, since the crystal unit is mounted on the side surface of the circuit board, the length of the circuit board is shortened.

請求項2記載の発明は、回路基板の側面下端部より該回路基板の底面の側縁部に電極を連続して一体的に形成し、且つ、該回路基板の側面に前記水晶振動子を装着して該水晶振動子を回路基板の側面に形成された電極に接続した請求項1記載の高周波モジュールを提供する。   According to a second aspect of the present invention, electrodes are continuously formed integrally from the lower end of the side surface of the circuit board to the side edge of the bottom surface of the circuit board, and the crystal unit is mounted on the side surface of the circuit board The high-frequency module according to claim 1, wherein the crystal resonator is connected to an electrode formed on a side surface of a circuit board.

この構成によれば、該水晶振動子に通電する電極と該高周波モジュールの裏面に装着する端子とが一体に形成されているので、回路基板の側面に形成された電極と該水晶振動子を直接に接続できる。   According to this configuration, since the electrode for energizing the crystal resonator and the terminal attached to the back surface of the high frequency module are integrally formed, the electrode formed on the side surface of the circuit board and the crystal resonator are directly connected. Can be connected.

請求項1記載の発明は、水晶振動子を回路基板の側面に装着しているので、該回路基板の長さを縮小して高周波モジュールの小型化を促進することができるという利点がある。   According to the first aspect of the present invention, since the crystal resonator is mounted on the side surface of the circuit board, there is an advantage that the length of the circuit board can be reduced and the miniaturization of the high-frequency module can be promoted.

請求項2記載の発明は、回路基板の側面下端部から裏面側縁部へ電極を延設し、そして、回路基板の側面に形成される電極に該水晶振動子を直接に接続するので、請求項1記載
の発明の効果に加え、コストの削減にも寄与できる。
According to the second aspect of the present invention, the electrode is extended from the lower end of the side surface of the circuit board to the edge on the back surface side, and the crystal unit is directly connected to the electrode formed on the side surface of the circuit board. In addition to the effect of the invention described in item 1, it can also contribute to cost reduction.

高周波モジュールの小型化を促進するという目的を達成するために、該高周波モジュールに搭載される水晶振動子を回路基板の側面に装着して該回路基板の長さを縮小したことにより実現した。   In order to achieve the purpose of promoting the miniaturization of the high-frequency module, it was realized by mounting a crystal resonator mounted on the high-frequency module on the side surface of the circuit board to reduce the length of the circuit board.

以下、本発明の一実施例を図1乃至図3に従って説明する。図1は本発明の高周波モジュール1を示し、該高周波モジュール1はセラミックにて形成した回路基板2の上面にIC3やその他の電子部品4を実装している。そして、該回路基板2の上面をシールドケース5にて被蔽してある。   An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a high-frequency module 1 according to the present invention, in which an IC 3 and other electronic components 4 are mounted on an upper surface of a circuit board 2 made of ceramic. The upper surface of the circuit board 2 is covered with a shield case 5.

一方、該回路基板2の側面及び該側面側の前記シールドケース5の側面に水晶振動子6が装着される。該水晶振動子6は水晶振動子チップ7を含み、そして、該水晶振動子チップ7はケース8内に収容されて、その一端部を金等にて該ケース8の内側面に溶着され、所謂片持ちにて固定されている。更に又、該ケース8の開放部を蓋体9にて被蔽して前記水晶振動子6が構成されている。   On the other hand, the crystal unit 6 is mounted on the side surface of the circuit board 2 and the side surface of the shield case 5 on the side surface side. The crystal resonator 6 includes a crystal resonator chip 7, and the crystal resonator chip 7 is accommodated in a case 8, and one end thereof is welded to the inner side surface of the case 8 with gold or the like. It is fixed by cantilever. Further, the crystal unit 6 is configured by covering the open part of the case 8 with a lid 9.

図2は、前記高周波モジュール1の裏面図を示し、前記回路基板2の底面及び側縁部には電極10,10…が一体的に連続して形成されている。該電極10,10…は、図2及び図3に示すように該回路基板2の側面下端部より該回路基板2の裏面側縁部へ延設され、該回路基板2の角部に沿って側面視L字状に形成されている。   FIG. 2 shows a back view of the high-frequency module 1, and electrodes 10, 10... Are integrally and continuously formed on the bottom surface and side edges of the circuit board 2. 2 and 3, the electrodes 10, 10... Extend from the lower end of the side surface of the circuit board 2 to the back side edge of the circuit board 2, and extend along the corners of the circuit board 2. It is formed in an L shape in side view.

そこで、該高周波モジュール1に通電すれば、該水晶振動子6とIC3及びその他電子部品4が動作して所定の周波数の信号が発振される。該発振信号は、例えば携帯電話に装着される様々な電子部品の動作タイミングを制御して夫々の電子部品が正確に動作できるように形成されている。又、該高周波モジュール1は携帯電話だけでなく、PDAやパソコン、ヘッドフォン等多くの電子機器に採択される。   Therefore, when the high-frequency module 1 is energized, the crystal resonator 6, the IC 3, and other electronic components 4 operate to oscillate a signal having a predetermined frequency. The oscillation signal is formed so that each electronic component can operate accurately by controlling the operation timing of various electronic components mounted on, for example, a mobile phone. The high frequency module 1 is adopted not only for mobile phones but also for many electronic devices such as PDAs, personal computers and headphones.

斯くして、該高周波モジュール1は前記水晶振動子6を前記回路基板2の側面に装着しているので、該回路基板2を従来要していた該水晶振動子6の搭載面積を大巾に縮小することができ、高周波モジュール1の小型化の促進に寄与できる。   Thus, since the high-frequency module 1 has the crystal unit 6 mounted on the side surface of the circuit board 2, the mounting area of the crystal unit 6 that has conventionally required the circuit board 2 is greatly increased. This can be reduced, and can contribute to the promotion of downsizing of the high-frequency module 1.

又、該回路基板2の側面下端部から裏面側縁部に電極10,10…が略L字状に折曲されて一体的に連続して形成されているので、前記水晶振動子は回路基板2の側面に形成されている前記電極10,10…に直接接続して電気的導通が実行される。斯くして、該高周波モジュール1は小型化が促進されると同時にコストダウンにも寄与することができる。   In addition, since the electrodes 10, 10,... Are bent in a substantially L shape from the lower end of the side surface of the circuit board 2 to the edge of the back surface, they are integrally formed continuously. Electrical connection is performed by directly connecting to the electrodes 10, 10... Formed on the two side surfaces. Thus, the high-frequency module 1 can contribute to cost reduction while at the same time promoting miniaturization.

尚、本発明は、セラミックの回路基板に限定するものではなく、樹脂にて形成された回路基板にも適応できる。更に、本発明は本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。   The present invention is not limited to a ceramic circuit board, and can be applied to a circuit board formed of resin. Furthermore, various modifications can be made without departing from the spirit of the present invention, and the present invention naturally extends to the modifications.

高周波モジュールの縦断面図。The longitudinal cross-sectional view of a high frequency module. 高周波モジュールの裏面図。The back view of a high frequency module. 高周波モジュールの要部拡大縦断面図。The principal part expansion longitudinal cross-sectional view of a high frequency module.

符号の説明Explanation of symbols

1 高周波モジュール
2 回路基板
3 IC
4 電子部品
5 シールドケース
6 水晶振動子
7 水晶振動子チップ
8 ケース
9 蓋体
10 電極
1 High-frequency module 2 Circuit board 3 IC
4 Electronic parts 5 Shield case 6 Crystal resonator 7 Crystal resonator chip 8 Case 9 Lid 10 Electrode

Claims (2)

回路基板にIC及び水晶振動子等を実装し、該IC及び水晶振動子により所定の周波数の信号を出力できるように構成した高周波モジュールに於いて、該回路基板の上面にICを搭載すると共に、該回路基板の側面に該水晶振動子を装着したことを特徴とする高周波モジュール。   In a high frequency module configured to mount an IC and a crystal resonator on a circuit board and to output a signal of a predetermined frequency by the IC and the crystal resonator, the IC is mounted on the upper surface of the circuit board, A high-frequency module, wherein the crystal unit is mounted on a side surface of the circuit board. 上記回路基板の側面下端部より該回路基板の底面の側縁部に電極を一体的に形成し、且つ、該回路基板の側面に上記水晶振動子を装着して該水晶振動子を回路基板の側面に形成された電極に接続したことを特徴とする請求項1記載の高周波モジュール。   An electrode is integrally formed from the lower end of the side surface of the circuit board to the side edge of the bottom surface of the circuit board, and the crystal unit is attached to the side surface of the circuit board to attach the crystal unit to the circuit board. 2. The high frequency module according to claim 1, wherein the high frequency module is connected to an electrode formed on a side surface.
JP2004218953A 2004-07-27 2004-07-27 High-frequency module Pending JP2006041931A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9048808B2 (en) 2013-02-21 2015-06-02 Samsung Electronics Co., Ltd. Sealed crystal oscillator and semiconductor package including the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9048808B2 (en) 2013-02-21 2015-06-02 Samsung Electronics Co., Ltd. Sealed crystal oscillator and semiconductor package including the same

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