JPH06268061A - Manufacture of package part - Google Patents

Abstract

PURPOSE:To improve the reliability on cutting by marking a groove--shaped cutting line along the boundary on the surface of a plate, and generating partial cracks at the intersecting points of cutting lines, and transmitting cracks rectilinearly so as to break it. CONSTITUTION:A sheet plate 10 is provided with cutting lines in the shapes of half cut grooves at regular pitches in X and Y directions. A frog-shaped jig 11 has needle-shaped projections Ta which are higher at the center corresponding to the center of the sheet plate 10 and become lower gradually toward the periphery. The intesecting point P of the cutting lines of the sheet plate 10 is positioned on the projection Ta of the frog-shaped jig 11, and a press body 12 is arranged thereon. Next, the press body 12 is lowered, whereupon the intersecting point Pao of the cutting lines at the center of the sheet plate 10 abuts on the projection Tao at the center of the frog-shaped jig 11, and partial cracks occurs. Next, the press body 12 is lowered as it is, whereupon cracks occur continuously, and they are transmitted rectilinearly to the periphery, and further the sheet plate 10 is broken along the cutting lines Lx and Ly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a package component in which a hard plate is divided into cells and broken along the boundary line.

[0002]

2. Description of the Related Art As an example of a package, there is a mounting type ceramic package (A) for accommodating elements such as a crystal oscillator, a SAW filter and a semiconductor chip as shown in FIGS. Above ceramic package (A)
Comprises a stem (1) and a cap (2), and the stem (1) is a hard rectangular plate-shaped thick film sheet (3) made of a ceramic material or a mixed material of ceramic and glass, and the thick film sheet (3). Rectangular frame bodies (4) and (5) having the same outer shape and the same sheet material and each having small and large openings are sequentially laminated and fixed, and the cross-section rectangular shape of the staircase wall surface having the step portion (1a) on the intermediate inner wall surface. A two-stage recess (1b) for storage is provided. And
The electrode (6) is led out from the step (1a) through the interfaces of the frame bodies (4) and (5), and the element (7) such as a crystal oscillator is placed on the electrode (6) of the step (1a). Conductive paste around the edge (8)
It can be stored and held so that it can be vibrated freely by being fixed by means such as. Further, the cap (2) is sealed to the upper sealing surface (5a) of the stem (1) via a sealing agent (9) such as adhesive glass or resin.

In manufacturing the stem (1) and the cap (2) of the ceramic package (A), first, a ceramic or a mixed powder of ceramic and glass is made into a slurry, and then as shown in FIG. 7 (a). Sheet sheets dried by the doctor blade method or extrusion molding method (10)
To form. Next, although not shown, after forming electrodes for internal output by screen printing on the sheet plate (10),
As shown in FIG. 7B, a cutting line (Lx) having a half-cut groove-shaped cross section at a constant pitch in the XY directions according to the outer dimensions (about 10 mm □) of the stem (1) and the cap (2).
(Ly) ... is provided. Therefore, after the sheet plate (10) is degreased and baked to be dried and hardened, it is first broken along the cutting lines (Lx) in the X direction as shown in FIG. 7C. Further, as shown in FIG. 7 (d), when it is broken along the cutting lines (Ly) ... In the Y direction, a thick film sheet (3) serving as a cap material is obtained, and small and large openings are formed therein. To obtain rectangular frame bodies (4) and (5).

When the sheet plate (10) is broken after degreasing and firing, it is manually cut like glass cutting, for example, as shown in FIG.
As shown in (b), one end is divided into left and right directions (E).
After a tensile stress is applied to (F) to form a local crack, the crack is further transmitted from one direction along one of the cutting lines (Lx) or (Ly) to the other end portion by the tensile stress, and the full width is obtained. Rupture. Alternatively, there is a means for cutting by dicing, but it has a drawback that the cut portion is wasted, accuracy is low, and it takes time.

[0005]

The problem to be solved is that local cracks formed at one end of the hard sheet plate (10) after degreasing and firing are cut off to the other end (Lx).
Or, when it is transmitted along (Ly) and breaks, the cutting line (L
Since x) or (Ly) is long, the cracks tend to deviate from the direction and bend in an oblique direction, and it may not be possible to cut into a desired rectangular plate shape. Even if the cutting line (Lx) or (Ly) is not removed, as shown in FIG. 5, the thick film sheet (3) after rupture has a burr (R) or the opposite chip (S), which causes automatic mounting. If the chuck size becomes inconvenient or the burr (R) breaks and scatters, it will cause a failure of the automatic machine, and since it is done manually, man-hours, labor and skill are required, and However, there are some points that hinder mass production.

[0006]

According to the present invention, a hard flat plate is X-shaped.
When manufacturing a package component by dividing it in a grid pattern in the Y direction and cutting along the boundary line, a groove-like cutting line is engraved along the boundary line on the flat plate surface, and a local crack is formed at the cutting line intersection point. Are formed continuously in a predetermined pitch in the XY directions, the cracks are linearly transmitted along the boundary line, and the flat plate is broken along the cutting line to manufacture a package component. .

[0007]

According to the above technical means, when a hard plate is divided into a grid shape in the XY directions and cut along the boundary line to manufacture a package component, a groove-like cutting line is cut along the boundary line. After the installation, local cracks are appropriately formed continuously at predetermined pitches in the XY directions at the intersections of the cutting lines, the cracks are linearly transmitted along the boundary lines, and the flat plate is broken along the cutting lines.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a method of manufacturing a package component according to the present invention will be described below with reference to FIGS. First, in FIGS. 1A and 1B, (10) is a sheet plate (hard plate), (11) is a sword-shaped jig, and (12) is an elastic pressing body. As in the conventional case, the sheet plate (10) is formed by slurrying ceramic or a mixed powder of ceramic and glass and then by a doctor blade method or an extrusion molding method as shown in FIG. ) And the outer dimensions of the cap (2) (about 10 mm □), a half-cut groove-shaped cutting line (Lx) (L
y) ... is provided and degreased and baked. The sword-shaped jig (11) is highest at the center of the seat plate (10),
From there, the needle-like protrusions (T
a) are planted and formed at all positions corresponding to the cutting line intersections (P). The pressing body (12) has a recessed portion (12a) formed on the lower surface according to a shape (chain line C in the drawing) that connects the vertices of the protrusions (Ta).

The operation of the present invention based on the above configuration will be described below. First, as shown in FIG. 1 (a), the hard sheet plate (10) after degreasing and firing is positioned directly above the jig (11), and the projections (Ta) are aligned with the cutting line intersections (P). Then, the pressure body (12) is arranged directly above the pressure body (12). Then, when the back surface of the sheet plate is placed on the protrusion (Ta) and the pressing body (12) is lowered from above and elastically pressed, the pressing body (12) is first pressed to the most as shown in FIG. 1 (b). The protrusion (Tao) at the close center contacts the corresponding cutting line intersection (Pao) at the center of the sheet, and tensile stress is applied to that point to form a local crack. Next, when the pressing body (12) is further lowered as it is, the adjacent protrusions (Ta) ... sequentially contact the corresponding cutting line intersections (P) ... along the XaXb and YaYb directions. Then, after a certain period of time, local cracks are sequentially and continuously formed at each point, and the cracks are linearly transmitted to the peripheral portion along the boundary line. Then, the pressing body (1
The sheet plate (10) is cut by the cutting line (L
x) (Ly) ... is broken and a thick film sheet (3) is formed.

Next, another embodiment of the present invention will be described with reference to FIGS.
Refer to. The difference from the above embodiment is the shape of the sword-shaped jig (13). As shown in FIG. 2, the movable needle-like protrusions (Tb) are provided on the mountain-shaped support surface (13a) which is convex upward. Are erected at all positions corresponding to the groove-shaped cutting line intersections (P) of the sheet plate (10), elastically held by the springs (14), and locked by the support surface (13a). At this time, the convex curvature of the support surface (13a) is matched with the concave curvature of the concave portion (12a) of the lower surface of the pressing body (12), and the protrusion (T
b) ... Is formed in the same length, and the spring (14) is lengthened in the peripheral portion of the support surface (13a). Therefore, the movable displacement amount of the protrusion (Tb) is maximized in the peripheral portion, and the vertices of the protrusion (Tb) are aligned flush with each other in an unloaded state, and the seat plate (10) can be placed on it easily. So that it can be aligned with.

In the above structure, the hard sheet plate (10) after degreasing and firing is placed on the projections (Tb) of the jig (13) and aligned with the cutting line intersections (P). The pressing body (12) is arranged right above it. Then, when the pressing body (12) is lowered from above the sheet plate (10) and elastically pressed, as shown in FIG. 3, first, the pressing body (12) is first pressed.
The protrusion (Tbo) in the peripheral portion of the supporting surface closest to the contact point abuts the corresponding cutting line intersection (P) in the peripheral portion of the sheet plate. Next, when the pressing body (12) is further lowered as it is, the adjacent projections (Tb) ... sequentially abut on the corresponding cutting line intersections (P) ... along the XY directions and are locked to the support surface (13a). To be done.
Therefore, tensile stress is applied to the sheet plate (10), local cracks are sequentially and continuously formed at each point after a certain time, and the cracks linearly extend from the peripheral portion to the central position along the boundary line. To communicate to. Then, the sheet plate (10) is broken along the cutting lines (Lx) (Ly) ... Only by the pressing operation of the pressing body (12), and the thick film sheet (3) is cut.
Is formed.

In each of the above embodiments, the seat plate (10) is used.
Local cracks are simultaneously formed in the XY direction from the central position or the peripheral portion of the, but the protrusions (Ta) (Tb) and the pressing body (12) are formed one-dimensionally to form local cracks in the X direction. After the formation, the crack may be formed in the Y direction again by rotating 90 °, and the crack may be performed in two steps. In addition, a plurality of cutting line intersections (P) are placed and protrusions (Ta) are provided at every other point.
(Tb) may be arranged, and the jigs (11) (1
Instead of 3), a crack may be formed at the intersection of the cutting lines by using a laser or the like.

[0013]

According to the present invention, a hard flat plate is divided into a grid shape in the XY directions and cut along the boundary line to manufacture a package component, and a groove shape is formed on the flat plate surface along the boundary line. A cutting line is engraved, a local crack is appropriately formed at the intersection of the cutting line, continuously in the XY directions, and the crack is linearly transmitted along the boundary line, and the flat plate is broken along the cutting line. Since the package component is manufactured, the package is surely broken along the cutting line to improve the reliability, and the man-hour and time required for the breaking are reduced to improve the productivity and workability.

[Brief description of drawings]

FIG. 1A is a side view of a sword-shaped jig including a hard plate and a pressing body showing an embodiment of a method of manufacturing a package component according to the present invention. (B) is a partial plan view of the hard plate according to the present invention.

FIG. 2 is a side view of a blade-shaped jig including a hard plate and a pressing body showing another embodiment of the method of manufacturing a package component according to the present invention.

FIG. 3 is a side view showing an operation example of the manufacturing method shown in FIG.

FIG. 4 is a side sectional view showing an example of a conventional ceramic package.

FIG. 5 is an explanatory diagram of a conventional problem.

FIG. 6 is an exploded perspective view showing an example of a conventional ceramic package.

FIG. 7 is a process chart showing an example of a conventional method of manufacturing a package component.

[Explanation of symbols]

 10 Hard Flat Plate 11 Sword Mountain Jig 12 Pressing Body Ta Protrusion Ly Cutting Line

Claims (5)

[Claims] 1. A hard plate is divided into a grid in the XY directions,
When manufacturing a package component by cutting along the boundary line, a groove-like cutting line is engraved on the flat plate surface along the boundary line, and local cracks are appropriately formed at predetermined pitches in the XY directions at intersections of the cutting line. A method of manufacturing a package part, which is characterized by continuously forming and linearly transmitting the crack along a boundary line and breaking the flat plate along a cutting line to manufacture a package part. 2. The back surface of the flat plate is positioned and pressed against a sword mountain jig formed by arranging and forming a plurality of needle-like protrusions at positions corresponding to the intersections of the groove-shaped cutting lines of the hard plate, and XY is set at the intersections.
The method for producing a package component according to claim 1, wherein local cracks are formed simultaneously in the same direction. 3. A sword mountain-shaped jig having a plurality of needle-like protrusions that are highest at the center of a hard plate and gradually lower toward the periphery from that position, at the positions corresponding to the intersections of the cutting lines. The back surface of the flat plate is positioned and pressed, and sequentially from the center position of the flat plate to the intersections of the cutting lines reaching the peripheral portion along the XY direction,
The method for manufacturing a package component according to claim 2, wherein local cracks are formed. 4. A plurality of movable needle-shaped protrusions having different movable displacements are flushed and elastically held with their vertices flush with each other at positions corresponding to the intersections of the groove-shaped cutting lines, and predetermined movements are possible. The back surface of the flat plate is positioned and pressed against a sword-shaped jig that is locked at a position, and local cracks are sequentially formed at each cutting line intersection point from the peripheral portion of the hard plate to the central position along the XY direction. The method of manufacturing a package component according to claim 2, wherein the method is performed. 5. The back surface of the flat plate is positioned and pressed against a sword-shaped jig formed by arranging and forming a plurality of needle-like protrusions at positions corresponding to the intersections of the groove-shaped cutting lines of the hard plate, and the X direction is applied to the intersections. The method for manufacturing a package component according to claim 1, wherein after the local crack is formed in the same direction, the crack is similarly formed in the Y direction.