JPH03108807A - Manufacture of thin profile crystal resonator package - Google Patents

Abstract

PURPOSE:To improve the air-tightness of a package after separation by providing a groove bypassing a separate part and an adhered part in an adhesive body of a base and a cap in a batch processing. CONSTITUTION:Lots of bases 1 made of a ceramics and caps made of a glass are arranged on a plane, and recessed shape of containers 5 with bottom are connected as a matrix on the plane of the base 1. Furthermore, V-shaped, U-shaped or channel shaped grooves 3 and cap grooves 3' are provided to a separating part 5 of the base 1 and the cap 2. The grooves 3, 3' form a boarder 7 between adjacent adhesion parts 4 to bypass the separating part 5 interrupting the adhesion function of the border. Thus, when the adhesive part between the ceramic base 1 and the glass cap 2 is cut off, the grooves 3, 3' provided in advance are cut off without application of cutting to the adhered part 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention contributes to high-density packaging, which has seen remarkable progress in the electronic equipment industry, and is mainly supplied as an electronic component suitable for surface mounting. The present invention relates to a thin piezoelectric vibrator, and particularly relates to a method of manufacturing a container formed by joining a base and a cap of a vibrator unit.

[Summary of the invention]

The present invention provides a thin crystal resonator suitable for surface mounting, in which a large number of bases and caps, which are containers, are connected in a plane, thereby improving productivity and further improving the separation of the base and cap after joining. The objective is to improve the reliability of airtight containers by providing grooves in the container. A ceramic or glass plate consisting of at least two flat or uneven plates has a plurality of recessed housing parts of the same shape on a plane, and the boundaries of the individual housing parts are V-shaped, U-shaped, or U-shaped. By providing an arbitrary groove such as this groove in a position that avoids the joint where the base and cap are joined, the reliability of the airtight container after separating individual vibrator containers during batch processing is improved. This is what I did.

[Conventional technology]

As shown in the perspective view of FIG. 2(a), the structure of a conventional container is such that the flat cap 2 and base 1 are made of ceramic or glass, and have a multi-piece shape in plan view. As shown in Figure (b), the base 1 and the cap 2 are joined at a joining part 4, and then separated by cutting at a parting part 5 indicated by a dotted line. In other words, the bonded portion was cut during separation after bonding.

[Problem to be solved by the invention]

However, in the conventional container structure, the joint was cut when the base 1 and cap 2 were joined and separated.
This has the disadvantage that cutting stress is generated in the joint, impairing the long-term airtightness of the container. In other words, the airtight container housing the crystal resonator lacked long-term reliability, which was a problem.

[Means to solve the problem]

In order to solve the above problem, the present invention arranges a plurality of accommodating parts of the same shape in a row on the base of a thin crystal vibrating container,
In a method for manufacturing a thin crystal resonator container in which a cap is sealed by a joint part to form an airtight housing part, the joint part surrounding the housing part and the joint part surrounding the adjacent housing part are combined. A groove is provided at the boundary part, the joining function of the joint part is interrupted by the groove, and a groove is also provided on any surface of the base and the cap at a position that coincides with the groove in plan view, and the groove is used as a guide. This prevents the negative effects of residual stress on the joint by separating the joints.

[Effect]

In this way, the present invention satisfies long-term airtightness by providing grooves in the multi-cavity shaped base and cap that make up the container for a thin crystal resonator so that the separated parts and joined parts do not affect the performance. It is now possible to simultaneously produce a large number of containers using batch processing.

〔Example〕

Embodiments of the present invention will be specifically described with reference to the drawings.

FIGS. 1(a) and 1(b) are perspective views showing the structure and manufacturing method of the thin crystal resonator container of the present invention. A large number of bases 1 made of ceramic and caps 2 made of glass are arranged in a plane, and as shown in the figure, a concave bottomed accommodating part 5 in a matrix shape is connected to the plane of the base 1. A V-shaped, U-shaped, U-shaped, etc.-shaped groove 3 and a cap groove 3' are provided in a separation part 5 between the base 1 and the cap 2. These mating grooves 3 and 3' form a boundary 7 between the joining part 4 and the adjacent joining part, and are designed to avoid the separation part 5 which blocks the joining function of this part. Therefore, when separating the joined body of the ceramic base 1 and the glass cap 2, the grooves 3 and 3' provided in advance are cut without cutting the joint portion 4. As a result, after the bonded body is separated, the residual stress caused by the cutting of the separation part 5 is extremely small, so the strain applied to the joint part 4 is minute, and the airtightness of the container is maintained even when a large number of pieces are manufactured simultaneously by batch processing. As shown in the figure, a cap groove 3' is formed on an arbitrary plane of the base 1 or the cap 2 at a position that coincides in plan with the groove 3 made in the boundary part 7 of the joint part. Providing a back groove 3' is effective for improving workability.

〔Effect of the invention〕

As described above, the present invention provides a thin crystal oscillator that improves the airtightness of the container after separation by providing grooves to avoid the separation and connection parts in the combined base and cap during batch processing. was gotten.

[Brief explanation of drawings]

FIGS. 1(a) and 1(b) are perspective views showing the structure of the present invention, and FIG. 2 is a perspective view showing the conventional structure. ΦBase 0 Cap, Groove, Cap Groove, Joint Part, Separation Part, Accommodation Part

Claims (1)

[Claims] In a method of manufacturing a container for a thin crystal resonator, a plurality of housing parts having the same shape are arranged in a line on a base, and a cap is sealed by a joint part to form an airtight housing part. A groove is provided at the boundary between the enclosing joint part and the adjoining joint part surrounding the accommodating part, the joining function of the joint part is blocked by the groove, and the base is placed at a position that coincides with the groove in plan view. and a method for manufacturing a thin crystal resonator container, characterized in that a groove is provided on any surface of the cap, and the cap is separated using the groove as a guide.