JPH11139840A - Production of plate glass for electronic parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a process for production capable of producing plate glass for electronic parts which is substantially free of chipping without damaging materials. SOLUTION: Plural plate glass materials are laminated onto a base plate 1 and are adhered by adhesives 3 to form a laminate. This laminate is divided and cut into prescribed sizes to form plural adjacent quadrangular prism bodies 5 on the base plate 1. The corner parts 5a facing each other of the adjacent quadrangular prism bodies 5 are simultaneously chamfered by tools 14 and the edge parts of respective pieces of the sheet glass 6 constituting the quadrangular prism bodies 5 are chamfered. The adhesion of the quadrangular prism bodies 5 are thereafter released, by which the quadrangular prism bodies are separated to individual sheets of the plate glass 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a substrate for a surface acoustic wave filter, a small package of a crystal oscillator, a solid-state imaging device,
The present invention relates to a method for manufacturing a glass sheet for an electronic component used for an optical semiconductor package such as a light emitting element and a light receiving element.

[0002]

2. Description of the Related Art Conventionally, a sheet glass for electronic parts, for example, a sheet glass used for a light transmission window of a package for accommodating an optical semiconductor such as a solid-state imaging device is a thin sheet glass having a predetermined thickness as shown in FIG. Are aligned and laminated on a jig 10 with a square plate glass 6 cut into a size substantially used for a package,
The glass plates 6 are adhered to each other using the adhesive 3 to form a square prism 5.
After that, the corner 5a of the square prism 5 is brought into contact with the rotating grindstone 11 to be squared to form a chamfered portion 5d, and then all the edges of the plate glass 6 constituting the square prism 5 are chamfered. ,
Thereafter, the adhesive 3 is removed, separated into individual glass sheets 6, and washed to produce a glass sheet for a light transmission window.

[0003]

However, in the conventional method for manufacturing a glass sheet for an electronic component, a glass sheet 6 having a size and shape to be used for a package is generally aligned and laminated using a jig 10 to form a square pillar 5. Since it is necessary to perform a manufacturing operation and an operation of removing each corner 5a of each square prism body 5 by contacting it with the rotating grindstone 11, the sheet glass 6 during these operations is required.
There is a problem that will be damaged. In addition, since many operations are required as described above, there is a problem that the efficiency is low and the cost is high.

[0004] It is an object of the present invention to provide a method of manufacturing a glass sheet for electronic parts which solves the above-mentioned conventional problems.

[0005]

According to a method of manufacturing a glass sheet for an electronic component according to the present invention, a plurality of glass sheets are bonded and laminated on a base to form a laminate, and the laminate is cut into predetermined dimensions. Forming a plurality of adjacent quadrangular prisms on a base, simultaneously chamfering opposing corners of the adjacent quadrangular prisms, and then edge portions of each glass sheet constituting the quadrangular prisms Is chamfered, and thereafter, the quadrangular prisms are separated from each other by releasing the adhesive.

Further, in the method of manufacturing a glass sheet for an electronic component according to the present invention, the squared prism on the base is immersed in an etching solution to chamfer the edge of each glass sheet constituting the square prism. It is characterized by the following.

[0007]

According to the method of manufacturing a plate glass for electronic parts of the present invention, a plurality of plate glass materials are bonded and laminated on a base to form a laminate, and the laminate is cut into a predetermined size and placed adjacent to the base. Forming a plurality of standing quadrangular prisms, chamfering the mutually opposing corners of the adjacent quadrangular prisms at once, then chamfering the edge of each sheet glass constituting the quadrangular prisms, Since the quadrangular prisms are released and separated into individual glass sheets, the work of aligning the glass sheets when shaving the corners becomes unnecessary, and there is no risk of damaging the material during this work. The corners of the plurality of quadrangular prisms can be cut efficiently.

Further, according to the method for manufacturing a glass sheet for electronic parts of the present invention, the square glass body which has been squared is immersed in an etching solution while being placed on a base, and each glass sheet forming the square glass body is formed. Since the edge portions are chamfered, all the edge portions of each sheet glass can be chamfered at once without performing the operation of aligning and holding each sheet glass on an etching jig.

[0009]

1 to 4 are explanatory views of a method of manufacturing a glass sheet for electronic parts according to the present invention, wherein 1 is a base, 2 is a glass sheet material, 3 is an adhesive, Reference numeral 4 denotes a laminated body of the sheet glass material 2, 5 denotes a square pillar, 6 denotes a sheet glass constituting the square pillar 5, and 7 denotes a sheet glass for an electronic component. Are denoted by the same reference numerals.

In the method of manufacturing a plate glass for an electronic component according to the present invention, as shown in FIG. 1A, 50 sheets of borosilicate glass having a size of 200 mm × 300 mm × 0.5 mm in thickness are polished. The laminated sheet glass materials 2 are successively overlapped and laminated on the base 1, and the space between the base 1 and the sheet glass material 2 and the mutual space between the laminated sheet glass materials 2 are filled with the adhesive 3 which has been heated and becomes liquid. Then, after cooling, the adhesive 3 is solidified to form the laminate 4.

Next, as shown in FIG. 1B, a multi-blade having a plurality of rotating 2 mm-thick cutting blades 13 arranged on a rotary drive shaft 12 at a pitch of 12 mm is used as a laminate. Attached to a cutting machine and cut into grids, 551 pieces on the base 1 length 10 mm, width 10 mm, height 35 m
A square pillar 5 having a size of m is formed in a state of standing next to the square pillar.

Next, as shown in FIG. 2A, using a squaring device 15 in which a plurality of squaring tools 14 using ultrasonic vibration are arranged at a pitch of 12 mm, FIG. As shown, the four opposing corners 5a, the two opposing corners 5b of the outer side, and the outer corner 5c of the four inner quadrangular prisms 5 on the base 1 are respectively The glass at each corner is finely crushed by the tool 14 and is simultaneously squared to form a squared portion 5d.

Next, as shown in FIG. 3, the square pillar 5 having the chamfered portion 5d formed on the base 1 is immersed in a tank 17 filled with an etching solution 16 containing hydrofluoric acid. Edge portions 6a, 6b of all sheet glass 6 constituting prism 5
Beveled all at once.

Thereafter, the adhesive 3 of the quadrangular prism 5 is dissolved in a solvent to separate the individual plate glasses 6 from the base 1, and the glass plate 6 is washed and dried, and the corners and edges as shown in FIG. 4 are chamfered. 27,550 sheets of electronic component sheet glass 7 are manufactured.

In the embodiment of the invention described above, a method of manufacturing a substantially square electronic component sheet glass 7 has been described. However, the manufacturing method of the present invention protects a line sensor of an image input device such as a facsimile or a scanner. 9mm in width, 40m in length
The present invention is also applicable to a rectangular plate glass having a thickness of 0.3 mm or m.

[0016] In the manufacturing method of the present invention, the squaring device 1 is used.
The tool 14 of 5 is not limited to a tool using ultrasonic vibration,
The grindstone may be rotated to grind and square the corners of the prism 5. Further, a material that melts and removes a corner with a CO ₂ laser or a high-temperature iron can be used.

[0017]

According to the method for producing a glass sheet for electronic parts of the present invention, an excellent effect can be produced with high efficiency of producing a glass sheet for electronic parts which is hardly chipped without damaging the material.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a manufacturing method of a glass sheet for electronic parts of the present invention, wherein (A) is a side view of a laminated body, and (B) is a step of cutting a laminated body to form a quadrangular prism. FIG.

FIGS. 2A and 2B are explanatory views in which corners of a quadrangular prism body on a base are simultaneously beveled using a beveling device, and FIG.
(B) is a plan view.

FIG. 3 is an explanatory view of a step of chamfering an edge portion of a sheet glass by etching.

FIG. 4 is a perspective view of a plate glass for an electronic component manufactured by the manufacturing method of the present invention.

FIG. 5 is an explanatory view of a conventional method for producing a sheet glass for electronic components.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Sheet glass material 3 Adhesive 4 Laminated body 5 Square pillar 6 Sheet glass 7 Sheet glass for electronic components 10 Jig 11 Rotating grindstone 12 Rotation drive shaft 13 Cutting blade 14 Tool 15 Square cutting device 16 Etching liquid

Claims (2)

[Claims] 1. A laminated body formed by bonding and laminating a plurality of sheet glass materials on a base, cutting the laminated body into predetermined dimensions to form a plurality of adjacent quadrangular prisms on the base, The opposing corners of the adjacent quadrangular prisms are chamfered at the same time, and then the edges of the glass sheets constituting the quadrangular prisms are chamfered. A method for producing a sheet glass for electronic parts, comprising: 2. The electronic device according to claim 1, wherein the square pillar on the base is chamfered at an edge portion of each glass sheet constituting the square pillar by immersing the square pillar in an etching solution. Manufacturing method of sheet glass for parts.