CN214517776U

CN214517776U - Monocrystalline silicon drill bit

Info

Publication number: CN214517776U
Application number: CN202122339348.1U
Authority: CN
Inventors: 薛佳伟; 王海军; 薛佳勇
Original assignee: Tianjin Zhongjing Semiconductor Material Co ltd
Current assignee: Tianjin Zhongjing Semiconductor Material Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2021-10-29
Anticipated expiration: 2031-09-27

Abstract

A monocrystalline silicon punching drill bit comprises a drill bit body (1), wherein one end of the drill bit body (1) is provided with a drilling opening (2), the other end of the drill bit body (1) is provided with a pier head (3), and two layers of diamonds are plated on the drilling opening (2); the middle part of the drill bit body (1) is provided with a through hole. Can realize punching one shot forming to monocrystalline silicon material, and the hole size and the inner wall of boring are comparatively suitable, need not to carry out secondary treatment again, satisfy the user demand.

Description

Monocrystalline silicon drill bit

Technical Field

The utility model relates to a drill bit, more specifically the single crystal silicon drill bit that says so relates to belongs to single crystal silicon drilling equipment technical field.

Background

The high-purity monocrystalline silicon material has very high hardness, generally about 7 Mohs hardness; moreover, the material is very brittle, the punching operation is very difficult, and the monocrystalline silicon is very likely to be cracked to cause material scrapping.

At present, solid drill bits are generally used for drilling holes in monocrystalline silicon, and the drilling operation is stopped and the cutting operation is continued after each drilling operation. This method, called "upset hole", is extremely time consuming; and the monocrystalline silicon is very easy to scrap.

Disclosure of Invention

An object of the utility model is to provide a monocrystalline silicon drill bit to the above-mentioned problem that exists among the prior art.

In order to achieve the above object, the technical solution of the present invention is: the utility model provides a monocrystalline silicon drill bit, includes the drill bit body, drill bit body one end be the drill hole, the drill bit body other end is the pier nose, the drill hole on electroplate two-layer diamond.

The middle part of the drill bit body is provided with a through hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses can realize punching one shot forming to monocrystalline silicon material, and the hole size and the inner wall of boring are comparatively suitable, need not to carry out secondary treatment again, satisfy the user demand. And the punching efficiency is high, and the success rate is greatly ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the drill bit comprises a drill bit body 1, a drill opening 2 and a pier head 3.

Detailed Description

The invention is described in further detail below with reference to the following description of the drawings and the detailed description.

Referring to fig. 1, a monocrystalline silicon drill bit comprises a bit body 1, wherein one end of the bit body 1 is a drilling opening 2, and the other end of the bit body 1 is a pier head 3. Two layers of diamonds are plated on the drill 2, and the outer diameter of the drill 2 corresponds to the required aperture size of the monocrystalline silicon and the granularity of the plated diamond sand.

Referring to fig. 1, a through hole is formed in the middle of the drill bit body 1, so that the drill bit body 1 becomes a hollow cavity.

Referring to fig. 1, the inventor designs a special drill to be a hollow cavity, when punching a monocrystalline silicon, a pier is arranged at a position of 0.1mm below a pier head 3, and then circulating cutting fluid is injected through a through hole in the middle of a drill body 1, so that the drilled monocrystalline silicon powder is washed away, and the drill can continuously advance downwards. The outer diameter of the drill 2 corresponds to the required aperture size of the monocrystalline silicon, so that the size and the inner wall of the drilled hole are proper, and the hole can be formed in one step without secondary treatment; meanwhile, the punching efficiency is high and the success rate is high.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, above-mentioned structure should all be regarded as belonging to the utility model discloses a protection scope.

Claims

1. A monocrystalline silicon drill bit is characterized in that: including drill bit body (1), drill bit body (1) one end be drill bit (2), the drill bit body (1) other end is pier nose (3), drill bit (2) go up and have plated two-layer diamond, drill bit body (1) middle part be provided with the through-hole.