JPS58136124A - Support seat and electrode construction for crystal oscillator - Google Patents

Abstract

PURPOSE:To make the support of leads easy and to improve the workability by fixing crystal oscillator to a support seat, arranging one end electrode provided for the seat to the other end with prolongation and supporting the support leads to the electrodes at one side of the seat. CONSTITUTION:The support seat 16 supporting the crystal oscillator 15 is made recessed, and ends 17, 18 are made flat, and the electrodes 23, 24, 25 are arranged on the upper surface. The electrodes 24, 25 are connected with the side electrodes 26, 27 and the lower electrode 28. The oscillator 15 is supported and fixed to the grooves 21, 22 provided for the seat 16 with adhesives 29, 30. The electrode 31 of the supported oscillator 15 is connected to the electrode 23, and the electrode 32 to the electrode 25 and these electrodes are made to have the same polarity as the electrode 24 via the electrodes 26, 27, 28. The support leads of the stem are fixed and supported to the grooves 19, 20 provided for the electrodes 23, 24 of one side of the seat 16, allowing to make the support of the leads easy and to improve the workability.

Description

[Detailed description of the invention] The present invention relates to a support pedestal electrode structure for a crystal resonator.

In particular, the present invention relates to a supporting pedestal electrode structure for a so-called coupled crystal resonator in which a vibrating part and a supporting part are integrally formed by etching, and a plurality of longitudinal vibration modes are combined.

An object of the present invention is to provide a support pedestal electrode structure that facilitates mounting work.

Excellent mlf% property and CI (CrystalIm
There are many consumer devices that require resonators with small pedances, and whip-cut crystal resonators have been used in these devices.However, recently, various consumer devices have been miniaturized, and as a result, There is also a growing demand for AT-cut Mizusho vibrations to be made smaller, but this type of vibrator has spurious a m (Fpurious Vibration).
The fact is that miniaturization is difficult, and at the same time, CI increases when miniaturized.When using AT-cut crystal oscillation metal as a wristwatch crystal oscillator,
It needs to be made considerably smaller, and when compared with a tuning fork type bent crystal resonator, it is not completely satisfactory in terms of size.Therefore, recently, resonators have been formed using photolithography, which is based on IC technology. The method has been applied to oscillator manufacturing, and as a result it has become possible to provide very small oscillators. For example, it has been applied to GTT cut crystal resonators with excellent m-layer characteristics that allow the thickness of the resonator to be made very thin, making it possible to create extremely compact devices. However, this type differs from the conventional one in that it is supported by both sides, so it has become necessary to devise a four-seat, one-pole support structure.

? Therefore, the present invention proposes a supporting pedestal electrode structure with good workability, and the present invention will be described in detail below with reference to the drawings.

Figures 1 (A), (B), and (0) show an embodiment of the GT-cut crystal resonator 1 mounted on the support pedestal 4 of the present invention. Figure (I3) shows a bottom view of Figure 1 (A), and Figure @1 (C) shows a bottom view of Figure $1 (B).

The support pedestal 4 is formed in a concave shape, and both the pain points T@S5 and 6 are flat, and the electrodes 7, 8.9 are arranged thereon. 1
Pole 8 and 1 pole 9 are side 1kIt poles 10, 11 and support stand dust 4
This connection is made via an electrode 12 placed on the lower surface of the .

Both l1flI parts 5 of the support base 4 with electrodes arranged in this way
．． A crystal resonator 1 is placed at 6, and adhesive is applied to the end of the resonator.
Alternatively, it is supported and fixed by solder or the like 13, 14. Due to this support surface iF, of the electrodes 2 and 3 of the crystal resonator 1, the electrode 2 is connected to the electrode 7, and the electrode 5 is connected to the 1″ pole 9,
It becomes the same polarity as the 'II pole 8 through 11 electrodes 10 and 12 degrees. That is, by arranging the electrodes of the support pedestal 4 as described above, it is possible to create a two-terminal structure for electrodes 7 and 8 (electrodes 10, 11, and 12 are drawn thicker than they are in reality for easy understanding). ).

Figures 2 (A), (B), and (C) show other embodiments when the GT-cut crystal shield 15 is mounted on the support pedestal 16 of the present invention, and Figure 2 (A) #i positive Front view. Fig. 2 (B) ij Bottom view of Fig. 2 (A), Fig. 2 ((riFi)
A bottom view of FIG. 2(B) is shown. The support pedestal 16 is formed in a concave shape, and has $19.20, 21.
22 is provided, on which electrodes 25, 24.25 are arranged. city, pole 24 and electrode 25ij, side electrode 26
゜27 and placed on the lower surface of the support pressure 16 fC'*, pole 2
8. In this way, the crystal resonator 15 is placed in #21 and #22 of the support base 16 that has been placed in the city center and has been placed.
It is supported and fixed by. Therefore, among the electrodes 51 and 52 arranged on the crystal resonator 15, the camellia 5
1 is electrode 25VC1 electrode 52 is connected to electrode 25, and electrode 26.2B.

27? It returns to the same polarity as the electrode 24 through it. By providing #l''lr, it became easier to set the vibrator, and furthermore, the work mt could be improved.

FIG. 5 shows nine support electrode pedestals 55f of the present invention shown in FIG. 1 (4) + (B) + (c):, stem 54 &, 7
Figure 3 shows a top view of one embodiment when mounted on the provided support leads 35,36. Crystal oscillator 6! The decaying surface electrode 5B is connected to the electrode 69 of the support pedestal 63, and the back surface electrode (
The top electrode (not shown) is connected to the electrode 40 and further connected to the electrode 41 via the bottom electrode (not shown). Electrode 39.41 is support lead wire 55.56VCQ
They are supported and fixed with adhesive, solder, etc. 42° 45, forming a 2nA structure 44, 45.

FIG. 4 shows that the support electrode stand IM46 of the present invention shown in FIGS. A plan view of an example is shown. The crystal resonator 50 is mounted on the support base 4
6, and is supported and fixed with adhesive, solder, etc. 54.55. 50 crystal units! ! ! The surface electrode 51 is connected to an electrode 56, a back surface electrode (not shown), and a Fi electrode 57, and further connected to the electrode 5 through a side surface and a bottom surface electrode (not shown).
Connected to 8.

Further, the support lead wires 48 and 49 provided on the stem 47 are arranged in grooves 59 and 60 provided on the support base 46, and are supported and fixed with adhesive, solder, etc. 61, 62, and are connected to the electrodes 56. ．． 5B and has a two-terminal structure 63,
641-Configure.

The helmet and support base are made of insulating material such as ceramic or crystal, and the electrodes are made of gold, silver, etc.

As described above, in the present invention, by devising the electrode arrangement structure of the support base that supports and fixes the crystal resonator, the crystal resonator can be mounted on the support base and a two-terminal structure can be constructed at the next time. Easy to mount lead wires and excellent workability.

Furthermore, by providing a groove in the support pedestal, it is easy to set the crystal resonator and the support lead wire, which significantly improves work efficiency. , we were able to significantly improve the adhesion strength and reliability of electrode connection. As a result, we are able to provide a crystal resonator with excellent impact resistance, and its effects are extremely large.

[Brief explanation of drawings]

Fig. 1 (A), (B), (a) Ti, GT cut crystal holder when mounted on the support base of the present invention, Fig. 1<Al is a front view , Figure 1 (B
) is a side view of Fig. 1 (a), Fig. 1 (0) Fi sugar 1 view (
The bottom view of Tsukasa is shown. FIG. 2(A) + (B) + (o) shows another embodiment of a GT-cut quartz crystal resonator mounted on the support base of the present invention. FIG. 2(A) is a front view, and FIG. Figure 2 (1,1
) shows a bottom view of the second figure), and FIG. 2 (0) shows a bottom view of tJIJ2 figure (B). FIG. 5 shows a plan view of an embodiment in which the support pedestal of the present invention shown in FIGS. 1(A), (B), and (0) is provided on a stem and mounted on a support lead wire. Figure 4 is a flat I10 diagram of the loosening example when the support pedestal of the present invention shown in wJ2 figures (4), (B), and (c) is mounted on the support lead wire provided on the stem. show. 1.15, 3.7, 50...Crystal oscillator 2.5, 31
, 12, 58, 51...excitation electrode 7.8, 9, 10,
11, 12, 25, 24, 25, 26°27.2B, 3
9,40,41,56,57.58...II electrode, 1
6,33.46...Support pedestal -5,6,1
7, 18...Both ports of the support pedestal 15.14, 29. ′
50, 42, 45, 54° 55. 61. 62... Adhesive or solder 19. 20, 21, 22, 52, 55,
59.60...Groove'54 47...Stem 55.56.48.49...Support lead wire 44.45
, 65.64... 2-terminal lead wire or more Applicant: Dai-ni-Kodamasha Co., Ltd. Agent Patent Attorney Mogami Prosecutor Figure 1 (A) Figure 1 CB) Figure 1L Kari (C) Figure 2 (A) Figure 2 (B) MS2 figure (C)

Claims (1)

[Claims] (1) A crystal resonator is supported and fixed at both ends on a support pedestal, one southern electrode provided on the support pedestal extends to the other southern part, and a support lead is attached to one electrode of the support pedestal. ! ? A support pedestal electrode structure for a crystal resonator characterized by supporting the crystal resonator.