CN219554939U - Packaging shell of resonator and resonator - Google Patents

Packaging shell of resonator and resonator Download PDF

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Publication number
CN219554939U
CN219554939U CN202223542323.2U CN202223542323U CN219554939U CN 219554939 U CN219554939 U CN 219554939U CN 202223542323 U CN202223542323 U CN 202223542323U CN 219554939 U CN219554939 U CN 219554939U
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China
Prior art keywords
resonator
ceramic base
oscillator
same
ring
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CN202223542323.2U
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Chinese (zh)
Inventor
高海光
金晓倩
刘明
李玮
何峰
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Hebei Zhongchi Electronic Technology Co ltd
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Hebei Zhongchi Electronic Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

The utility model provides a packaging shell of a resonator and the resonator, wherein the packaging shell comprises: the ceramic base, the kovar ring and the metal upper cover; the ceramic base and the base of the oscillator are the same in size and the same in material; the ceramic base is used for assembling the resonator chip and the control circuit unit; the ceramic base is provided with an electrical measurement hole with preset hole depth; the Kovar ring is positioned on the assembling surface of the ceramic base and surrounds a first inner cavity with the ceramic base; the size of the first inner cavity is the same as that of the inner cavity of the oscillator; the metal upper cover is positioned on the kovar ring, and forms a closed cavity together with the ceramic base and the kovar ring. The utility model can make the bases of the resonator and the oscillator process the same base raw materials in production, the sizes of the inner cavities are the same, the sizes of the kovar rings are the same, the sizes of the metal upper covers are the same, the kovar rings of the resonator and the oscillator are universal to the metal upper covers, and the material management and control cost is reduced.

Description

Packaging shell of resonator and resonator
Technical Field
The utility model belongs to the field of ceramic packaging, and particularly relates to a packaging shell of a resonator and the resonator.
Background
For resonators and oscillators of the same size, the same quartz wafer is generally used by the crystal manufacturer at the time of manufacture. However, the resonator and the oscillator require different pins, so the oscillator requires side-hole digging with respect to the resonator. When the external dimensions of the resonator and the oscillator are the same, taking the external dimensions of 2.0mm×1.6mm as an example, the following may be the case for the ceramic base of the oscillator and the resonator:
because the overall dimension of the ceramic is fixed, the problems that the wall thickness strength of the ceramic substrate is reduced and the brazing flux flow area is reduced and the brazing flux is accumulated can be caused by the simple side hole digging, the inner cavity of the ceramic substrate and the Kovar ring design can be contracted inwards to enhance the wall thickness strength and the brazing flux flow area. Eventually resulting in inconsistent cavity sizes for the same oscillator and resonator, the oscillator is smaller relative to the resonator cavity size. The oscillator cavity size is smaller than 2 resonators, resulting in the quartz wafer of the resonator not being applicable to the oscillator. The sizes of the inner cavities are different, the sizes of the ceramic matched kovar rings are different, the matched metal upper covers are also different, and the material management and control cost is greatly increased for crystal manufacturers.
Disclosure of Invention
In view of the above, the utility model provides a packaging shell of a resonator and the resonator, which can solve the problem of material management and control cost increase caused by different sizes of ceramic-matched kovar rings and different matched metal covers due to different sizes of inner cavities of the resonator and the resonator.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the embodiment of the utility model provides a packaging shell of a resonator, which comprises the following components: the ceramic base, the kovar ring and the metal upper cover;
the ceramic base and the base of the oscillator are the same in size and the same in material; the ceramic base is used for assembling the resonator chip and the control circuit unit; the ceramic base is provided with an electrical measurement hole with preset hole depth;
the Kovar ring is positioned on the assembling surface of the ceramic base and surrounds a first inner cavity with the ceramic base; the size of the first inner cavity is the same as that of the inner cavity of the oscillator;
the metal upper cover is positioned on the kovar ring, and forms a closed cavity together with the ceramic base and the kovar ring.
In a possible implementation manner of the first aspect, the ceramic base is a rectangular quartz crystal.
In a possible implementation manner of the first aspect, the first set of opposite sides of the ceramic base are symmetrically provided with electrical measurement holes; the electric measuring hole is used for setting pins connected with the control circuit unit.
In a possible implementation manner of the first aspect, the preset hole depth of the electrical measurement hole ranges from 0.05 to 0.025mm.
In a possible implementation manner of the first aspect, the preset area of the electric measurement hole is provided with metallization.
In one possible implementation of the first aspect, the inner ring size of the kovar ring is 1.60mm×1.20mm and the outer ring size is 1.89mm×1.49mm.
In a possible implementation manner of the first aspect, the outer ring of the kovar ring has a first distance from a first set of opposite sides of the ceramic base where the electrical measurement holes are located, and the preset hole depth of the electrical measurement holes is smaller than the first distance.
In one possible implementation of the first aspect, the metal upper cover has the same size as the inner ring of the kovar ring.
In a possible implementation manner of the first aspect, a periphery of the ceramic base has a rounded corner structure.
In a second aspect, embodiments of the present utility model provide a resonator, wherein the resonator is encapsulated using an encapsulation according to any one of the first aspects.
The embodiment of the utility model has the beneficial effects that:
by making the ceramic base and the ceramic base of the existing oscillator have the same size and material, the material purchase cost and production cost of the ceramic base by crystal manufacturers are reduced. And simultaneously, the hole digging depth of the ceramic outer side wall of the oscillator is adjusted by setting the electric hole measuring depth of the preset hole, so that the inner cavity of the resonator is the same as the inner cavity of the oscillator in size, and the kovar ring and the metal upper cover matched with the resonator and the oscillator keep commonality.
The advantages of the second aspect are referred to as the advantages of the first aspect, and are not described herein.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a package housing of a resonator according to an embodiment of the present utility model;
FIG. 2 is a front view of the ceramic base and the kovar ring with the metal cover removed in accordance with an embodiment of the present utility model;
FIG. 3 is a left side view, in half section, of FIG. 2 at A-A, provided in accordance with an embodiment of the present utility model;
FIG. 4 is a bottom view, in half section, of FIG. 2 at B-B, in accordance with an embodiment of the present utility model;
FIG. 5 is a schematic view of the bottom surface of a ceramic base according to an embodiment of the present utility model;
fig. 6 is a schematic diagram of a ceramic base for producing a tile according to an embodiment of the present utility model.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the following description will be given by way of specific example with reference to fig. 1.
Referring to fig. 1, an embodiment of the present utility model provides a package case of a resonator, including: ceramic base, kovar ring and metal upper cover.
The ceramic base and the base of the oscillator are the same in size and the same in material; the ceramic base is used for assembling the resonator chip and the control circuit unit; the ceramic base is provided with an electrical measurement hole with a preset hole depth.
The Kovar ring is positioned on the assembling surface of the ceramic base and surrounds a first inner cavity with the ceramic base; the first cavity has the same size as the cavity of the oscillator.
The metal upper cover is positioned on the kovar ring, and forms a closed cavity together with the ceramic base and the kovar ring.
By making the ceramic base and the ceramic base of the existing oscillator have the same size and material, the material purchase cost and production cost of the ceramic base by crystal manufacturers are reduced. And simultaneously, the hole digging depth of the ceramic outer side wall of the oscillator is adjusted by setting the electric hole measuring depth of the preset hole, so that the inner cavity of the resonator is the same as the inner cavity of the oscillator in size, and the kovar ring and the metal upper cover matched with the resonator and the oscillator keep commonality.
The ceramic susceptor is illustratively a rectangular quartz crystal. The cavity is unchanged, quartz wafers used for the resonator and the base of the oscillator are universal, wafer standardization of crystal manufacturers is facilitated, and quartz crystal sizes of the oscillator quartz wafers are not required to be designed independently.
The oscillator has one more control circuit than the resonator, so that crystal manufacturers prefer to use the same quartz wafer for the same size resonator and oscillator. Taking the 2.0mm by 1.6mm size as an example, the annual yield of the resonator is about 4 times that of the oscillator, so that the use of a quartz crystal for the resonator is necessary for the crystal manufacturer. Therefore, the utility model can be used as the ceramic base of the oscillator by arranging the electric measuring hole on the quartz crystal which is universal to the oscillator and the resonator.
Illustratively, the first set of opposite sides of the ceramic base are symmetrically provided with electrical measurement holes; the electrical measuring holes are used for arranging pins connected with the control circuit unit, as shown in fig. 2, and fig. 2 is a front view of the ceramic base and the kovar ring after the metal upper cover is removed.
For example, taking a 2.0mm×1.6mm oscillator and resonator as an example, since the external dimensions of the ceramic substrate are fixed at this time, simple side hole digging can lead to reduced wall thickness strength of the ceramic substrate and solder accumulation caused by reduced flow area of brazing solder, so that the inner cavity of the ceramic substrate and the kovar ring can be contracted, the wall thickness strength is enhanced, and the flow area of the solder is increased. But also results in inconsistent resonator cavity dimensions for the same oscillator, which is smaller relative to the resonator cavity dimensions. The cavity is different in that the size of the cavity of the oscillator is smaller than that of the resonator, so that the quartz wafer of the resonator cannot be applied to the oscillator.
The size of the inner cavity of the oscillator is expanded, so that the size of the inner cavity of the oscillator and the size of the inner cavity of the ceramic of the resonator are consistent, and the hole digging depth of the outer side wall of the ceramic of the oscillator is reduced, namely the preset hole depth of the electric measuring hole is reduced. The two components are combined to ensure that the strength of the ceramic structure is not reduced, and meanwhile, enough area is reserved for dispersing the solder in the brazing process and the solder is not accumulated.
Illustratively, the predetermined hole depth of the electrical measurement holes is in the range of 0.05-0.025mm. Thereby meeting the requirement that the sizes of the ceramic inner cavities of the oscillator and the resonator are consistent.
Illustratively, the predetermined area a of the electrical measurement aperture is provided with metallization, as shown in fig. 3 and 4. Wherein fig. 3 is a left side view in half-section at A-A in fig. 2, and fig. 4 is a bottom view in half-section at B-B in fig. 2. The preset area a is communicated with the metallized part on the multilayer ceramic of the ceramic base.
Illustratively, the inner ring size of the kovar ring is 1.60mm by 1.20mm and the outer ring size is 1.89mm by 1.49mm.
The outer ring of the Kovar ring has a first distance h1 from a first group of opposite sides of the ceramic base where the electrical measuring holes are located, and the preset hole depth h of the electrical measuring holes 2 Less than the first distance h 1 。
Illustratively, the metal upper cover is the same size as the inner ring of the kovar ring.
Illustratively, the bottom surface of the ceramic base is divided into 4 portions of metallization, as shown in FIG. 5. The periphery of the ceramic base is provided with a round corner structure. The rounded corner structure is used for preventing burrs from collapsing when the ceramic base is subjected to panel production, as shown in fig. 6.
The ceramic base and the ceramic base of the existing oscillator have the same size and material, so that the wafer standardization of crystal manufacturers is facilitated, the quartz crystal size is not required to be designed for the quartz wafer of the oscillator independently, and the material purchase cost and the production cost of the crystal manufacturers for the ceramic base are reduced. And simultaneously, the hole digging depth of the ceramic outer side wall of the oscillator is adjusted by setting the electric hole measuring depth of the preset hole, so that the inner cavity of the resonator is the same as the inner cavity of the oscillator in size, and the kovar ring and the metal upper cover matched with the resonator and the oscillator keep commonality.
An embodiment of the present utility model provides a resonator or an oscillator, which is characterized in that the resonator or the oscillator is encapsulated by an encapsulation shell according to any one of the above.
The beneficial effects of a resonator or oscillator are referred to as the beneficial effects of the package housing of a resonator, and are not described herein.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.

Claims (10)

1. A package housing for a resonator, for mating with a fixed size oscillator, comprising: the ceramic base, the kovar ring and the metal upper cover;
the ceramic base and the base of the oscillator are the same in size and the same in material; the ceramic base is used for assembling the resonator chip and the control circuit unit; the ceramic base is provided with an electrical measurement hole with preset hole depth;
the Kovar ring is positioned on the assembling surface of the ceramic base and surrounds a first inner cavity with the ceramic base; the first cavity has the same size as the cavity of the oscillator;
the metal upper cover is positioned on the kovar ring, and is in airtight cavity with the ceramic base and the kovar ring.
2. The resonator package of claim 1, wherein the ceramic base is a rectangular quartz crystal.
3. The resonator package of claim 2, wherein the first set of opposite sides of the ceramic base are symmetrically provided with the electrical measurement holes; the electrical measurement holes are used for setting pins connected with the control circuit unit.
4. A housing for a resonator according to claim 3, characterized in that the predetermined hole depth of the electrical measurement holes is in the range of 0.05-0.025mm.
5. A package housing of a resonator according to claim 3, characterized in that the predetermined area of the electrical measurement holes is provided with a metallization.
6. The enclosure of a resonator according to claim 1, wherein the kovar ring has an inner ring size of 1.60mm x 1.20mm and an outer ring size of 1.89mm x 1.49mm.
7. A resonator package according to claim 3, wherein the outer ring of the kovar ring has a first distance from a first set of opposite sides of the ceramic base where the electrical measurement holes are located, and the predetermined hole depth of the electrical measurement holes is smaller than the first distance.
8. The enclosure of claim 6, wherein the metal top cover has the same size as the inner ring of the kovar ring.
9. The resonator package of claim 2, wherein the ceramic base has rounded corners around it.
10. A resonator, characterized in that it is encapsulated using an encapsulation according to any one of claims 1 to 9.
CN202223542323.2U 2022-12-29 2022-12-29 Packaging shell of resonator and resonator Active CN219554939U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223542323.2U CN219554939U (en) 2022-12-29 2022-12-29 Packaging shell of resonator and resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223542323.2U CN219554939U (en) 2022-12-29 2022-12-29 Packaging shell of resonator and resonator

Publications (1)

Publication Number Publication Date
CN219554939U true CN219554939U (en) 2023-08-18

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ID=87737246

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223542323.2U Active CN219554939U (en) 2022-12-29 2022-12-29 Packaging shell of resonator and resonator

Country Status (1)

Country Link
CN (1) CN219554939U (en)

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