CN215008142U - Wedge-shaped riving knife - Google Patents
Wedge-shaped riving knife Download PDFInfo
- Publication number
- CN215008142U CN215008142U CN202120805094.5U CN202120805094U CN215008142U CN 215008142 U CN215008142 U CN 215008142U CN 202120805094 U CN202120805094 U CN 202120805094U CN 215008142 U CN215008142 U CN 215008142U
- Authority
- CN
- China
- Prior art keywords
- wedge
- shaped
- tool
- hole
- tool bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
- H01L2224/78—Apparatus for connecting with wire connectors
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a wedge chopper, the structure includes: the tool comprises a tool handle, a welding layer and a tool bit, wherein the tool handle is connected with the tool bit through the welding layer; the welding-type wire cutting machine comprises a welding handle, a cutting tool handle, a welding layer and a welding layer, wherein the cutting tool handle is cylindrical, one end of the cutting tool handle, which is connected with the welding layer, is of a wedge-shaped transition structure, the wedge-shaped transition structure comprises a plane section, a first oblique section, a second oblique section and a third oblique section, the wall from the plane section of the wedge-shaped structure to the other end of the cutting tool handle is a plane, and a through first lead hole is formed in the center of the interior of the cutting tool handle; the tool bit is the wedge form, the tool bit is equipped with the second pin hole that link up, the through-hole to the tool bit side is run through for the terminal surface slant of tool bit in second pin hole, the tool bit terminal surface includes inclined plane and plane. The utility model can ensure the bonding quality and greatly improve the service life; meanwhile, the material cost and the processing cost of the high-performance cutter head can be greatly reduced.
Description
Technical Field
The utility model belongs to the microelectronic device field, concretely relates to wedge chopper.
Background
The wedge-shaped cleaver is an important tool used in the wire bonding process in the process link of preparing various microwave devices. The wire bonding is to transmit ultrasonic energy by using a chopper, so that a bonding wire penetrating through the chopper generates pressure and friction between a tool bit of the chopper and a bonding pad metal, thereby being tightly welded with the bonding pad of the substrate, and realizing the electrical interconnection between the chip and the substrate and the information intercommunication between the chips. The lead bonding process is simple, the cost is low, the method is suitable for various packaging forms, the lead bonding process is dominant in the connection mode, and more than 90% of packaging pins are connected by the lead bonding at present.
The wedge-shaped cleaver is made of iron-chromium alloy, stainless steel, tungsten carbide, titanium carbide or ceramic. At present, an integral wedge-shaped cleaver is generally adopted to improve the ultrasonic transmission efficiency of the bonding process. However, this not only limits the useful life of the wedge-shaped riving knife, but also significantly reduces the cost performance of the wedge-shaped riving knife of titanium carbide, ceramics, etc. with excellent performance.
Disclosure of Invention
The utility model provides a wedge chopper of welding type structure, structural design and the performance of improving wedge chopper reduce the manufacturing cost of wedge chopper not enough to above-mentioned prior art exists.
The utility model discloses a realize through following technical scheme.
A wedge-shaped riving knife, the wedge-shaped riving knife structure comprising: the tool comprises a tool shank (1), a welding layer (2) and a tool bit (3), wherein the tool shank (1) is connected with the tool bit (3) through the welding layer (2); the welding tool comprises a tool shank (1), a welding layer (2), a wedge-shaped transition structure, a first lead hole (8) and a second lead hole (6), wherein the tool shank (1) is cylindrical, one end, connected with the welding layer (2), of the tool shank (1) is of the wedge-shaped transition structure, the wedge-shaped transition structure comprises a plane section (4), a first oblique section (5), a second oblique section (6) and a third oblique section (7), the wall from the plane section (4) of the wedge-shaped structure to the tool shank at the other end of the tool shank (1) is a plane, and the center of the inside of the tool shank (1) is provided with the first lead hole; tool bit (3) are the wedge form, tool bit (3) are equipped with second pin hole (9) that link up, second pin hole (9) are for running through the through-hole to the tool bit side from tool bit terminal surface slant, tool bit (3) terminal surface includes inclined plane (10) and plane (11).
Further, the first lead hole (8) is a circular through hole.
Furthermore, the second lead hole (9) is a circular hole or a square hole, the inlet end is in a horn mouth shape, and the included angle between the second lead hole (9) and the axis of the knife handle (1) is 10-80 degrees.
Further, the aspect ratio of the circular holes is 10 to 100; the width-thickness ratio of the square hole is 1.5-50.
Furthermore, the inclined plane (10) is provided with a U-shaped groove or a V-shaped through groove, and the U-shaped groove or the V-shaped through groove is communicated with the outlet end of the second lead hole (9).
Furthermore, the center of the plane (11) is provided with an arc through groove, a V-shaped through groove, a crossed arc through groove or a parallel arc through groove.
Further, the aspect ratio of the first lead hole (8) is 10 to 300.
Further, the ratio of the overall length of the wedge-shaped riving knife to the diameter of the knife handle (1) is 4-30.
Further, the length ratio of the tool shank (1) to the tool bit (3) is 1-80.
Further, the thickness of the welding layer (2) is 0.001mm-5 mm.
The utility model has the advantages that the wedge chopper with the welding structure can connect the knife handles and the knife heads made of different materials together through the welding layer, thereby being beneficial to meeting different service performances of the knife handles and the knife heads, not only ensuring the bonding quality, but also greatly improving the service life; the utility model provides a pair of wedge chopper of welding type structure can reduce the material cost and the processing cost of high performance tool bits such as whole type titanium carbide, pottery simultaneously by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a part of the structure of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a sectional view of the cutter head of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, a wedge-shaped riving knife is structurally comprised of: the tool comprises a tool shank 1, a welding layer 2 and a tool bit 3, wherein the tool shank 1 is connected with the tool bit 3 through the welding layer 2;
the welding layer 2 is welded on the cutter handle 1, the cutter handle 1 is cylindrical, one end, connected with the welding layer 2, of the cutter handle 1 is of a wedge-shaped transition structure, specifically, the wedge-shaped transition structure comprises a plane section 4, a first oblique section 5, a second oblique section 6 and a third oblique section 7, the plane section 4, the first oblique section 5, the second oblique section 6 and the third oblique section 7 are fixedly connected with the periphery of the welding layer 2 respectively, the wall of the cutter handle from the plane section 4 of the wedge-shaped transition structure to the other end of the cutter handle 1 is a plane, a through first lead hole 8 is formed in the center of the interior of the cutter handle 1, namely the first lead hole 8 extends from one end of the cutter handle 1 to the other end, the first lead hole 8 is a circular through hole, the length-diameter ratio of the first lead hole 8 is 10-300, and the thickness of the welding layer 2 is 0.001-5 mm;
the tool bit 3 is wedge-shaped, the tool bit 3 is provided with a through second lead hole 9, the second lead hole 9 is a through hole which obliquely penetrates from the end surface of the tool bit to the side surface of the tool bit, the second lead hole 9 is a circular hole or a square hole, and the inlet end (namely the lower end) is horn-shaped; the length-diameter ratio of the circular hole is 10-100, and the width-thickness ratio of the square hole is 1.5-50; the inlet end of the second lead hole 9 and the outlet end of the first lead hole 8 are on the same side; the included angle between the second lead hole 9 and the axis of the knife handle 1 is 10-80 degrees; the end face of the cutter head 3 comprises an inclined plane 10 and a plane 11, the upper end of the inclined plane 10 is fixedly connected with the lower end of the plane 11, and the inclined plane 10 and the plane 11 can be of an integrated structure.
Further, the inclined surface 10 is provided with a U-shaped groove or a V-shaped through groove, and the U-shaped groove or the V-shaped through groove is communicated with an outlet end (i.e., an upper end) of the second lead hole 9.
Further, the center of the plane 11 is provided with an arc through groove, a V-shaped through groove, a crossed arc through groove or a parallel arc through groove.
Further, the ratio of the overall length of the wedge-shaped riving knife to the diameter of the knife handle 1 is 4-30, and the length ratio of the knife handle 1 to the knife head 3 is 1-80.
Examples
A wedge-shaped chopper comprises a chopper handle 1, a welding layer 2 and a chopper head 3, wherein the overall length of the wedge-shaped chopper (the length-diameter ratio is about 15.66) is 25.05mm, and the diameter of the chopper handle 1 is 1.6 mm; the cutter handle 1 and the cutter head 3 are connected through the welding layer 2, the length of the cutter handle 1 is 21mm, the length of the cutter head 3 is 4mm (the length ratio of the cutter handle 1 to the cutter head 3 is 5.25), and the thickness of the welding layer is 0.05 mm;
the welding layer 2 is fixedly connected with the welding layer, the knife handle 1 is cylindrical, one end, connected with the welding layer 2, of the knife handle 1 is of a wedge-shaped transition structure, specifically, the wedge-shaped transition structure comprises a plane section 4, a first oblique section 5, a second oblique section 6 and a third oblique section 7, the plane section 4, the first oblique section 5, the second oblique section 6 and the third oblique section 7 are fixedly connected with the periphery of the welding layer 2 respectively, the knife handle wall from the plane section 4 of the wedge-shaped transition structure to the other end of the knife handle 1 is a plane, a through first lead hole 8 is formed in the center of the interior of the knife handle 1, the first lead hole 8 is a circular through hole, the diameter of the circular through hole is 0.5mm, and the length-diameter ratio of the circular through hole is 48;
the tool bit 3 is wedge-shaped, the tool bit 3 is provided with a through second lead hole 9, the second lead hole 9 is a through hole which obliquely penetrates from the end surface of the tool bit to the side surface of the tool bit, the second lead hole 9 is a circular hole, the diameter of the second lead hole is 0.08mm (the length-diameter ratio is about 50), and the inlet end of the second lead hole is horn-shaped; the included angle between the second lead hole 9 and the axis of the knife handle 1 is 45 degrees. The end face of the cutter head 3 comprises an inclined plane 10 and a plane 11, and a U-shaped groove formed in the inclined plane 10 is communicated with the outlet end of the second lead hole 9; the center of the plane 11 is provided with an arc through groove structure.
In the bonding process, the end part of the wedge-shaped riving knife handle 1 is fixed on a bonding machine, a bonding lead sequentially passes through the first lead hole 8 and the second lead hole 9, and the lead and the bonding pad are welded under the action of ultrasonic energy, heat energy or pressure through the plane 11, so that the electrical interconnection between the chip and the substrate and the information intercommunication between the chips are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be noted that other modifications and equivalents may be made by those skilled in the art in light of the teachings of the present disclosure to achieve the same purpose, and should be construed as within the scope of the present disclosure.
Claims (10)
1. A wedge-shaped riving knife, the wedge-shaped riving knife structure comprising: the tool comprises a tool shank (1), a welding layer (2) and a tool bit (3), wherein the tool shank (1) is connected with the tool bit (3) through the welding layer (2); the welding tool comprises a tool shank (1), a welding layer (2) and a wedge-shaped transition structure, wherein the tool shank (1) is cylindrical, one end, connected with the welding layer (2), of the tool shank is of the wedge-shaped transition structure, the wedge-shaped transition structure comprises a plain section (4), a first oblique section (5), a second oblique section (6) and a third oblique section (7), the wall of the tool shank from the plain section (4) of the wedge-shaped transition structure to the other end of the tool shank (1) is a plane, and a through first lead hole (8) is formed in the center of the interior of the tool shank (1); tool bit (3) are the wedge form, tool bit (3) are equipped with second pin hole (9) that link up, second pin hole (9) are for running through the through-hole to the tool bit side from tool bit terminal surface slant, tool bit (3) terminal surface includes inclined plane (10) and plane (11).
2. Wedge-shaped riving knife according to claim 1, characterized in that the first lead hole (8) is a circular through hole.
3. The wedge chopper as claimed in claim 1, wherein the second lead hole (9) is a circular hole or a square hole, the inlet end is in a bell mouth shape, and the included angle between the second lead hole (9) and the axis of the knife handle (1) is 10-80 degrees.
4. The wedge chopper of claim 3, wherein the circular aperture has an aspect ratio of 10 to 100; the width-thickness ratio of the square hole is 1.5-50.
5. The wedge chopper as claimed in claim 1, wherein the inclined surface (10) is provided with a U-shaped groove or a V-shaped through groove, and the U-shaped groove or the V-shaped through groove is communicated with the outlet end of the second lead hole (9).
6. Wedge-shaped riving knife according to claim 1, characterized in that the plane (11) is centrally provided with a circular arc through groove, a V-shaped through groove, a cross circular arc through groove or a parallel circular arc through groove.
7. The wedge chopper of claim 1, wherein the first lead aperture (8) has an aspect ratio of 10-300.
8. Wedge-shaped riving knife according to claim 1, characterized in that the ratio of the overall length of the wedge-shaped riving knife to the diameter of the knife handle (1) is 4-30.
9. Wedge-shaped riving knife according to claim 1, characterized in that the length ratio of the knife handle (1) to the knife head (3) is 1-80.
10. Wedge-shaped riving knife according to claim 1, characterized in that the thickness of the welding layer (2) is 0.001mm-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120805094.5U CN215008142U (en) | 2021-04-20 | 2021-04-20 | Wedge-shaped riving knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120805094.5U CN215008142U (en) | 2021-04-20 | 2021-04-20 | Wedge-shaped riving knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008142U true CN215008142U (en) | 2021-12-03 |
Family
ID=79093550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120805094.5U Active CN215008142U (en) | 2021-04-20 | 2021-04-20 | Wedge-shaped riving knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215008142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883208A (en) * | 2022-04-24 | 2022-08-09 | 有研工程技术研究院有限公司 | Deep cavity welding wedge-shaped cleaver |
| CN116000511A (en) * | 2022-12-26 | 2023-04-25 | 深圳市海志亿半导体工具有限公司 | Cutter head for enhancing fine-pitch wire feeding forming effect |
-
2021
- 2021-04-20 CN CN202120805094.5U patent/CN215008142U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883208A (en) * | 2022-04-24 | 2022-08-09 | 有研工程技术研究院有限公司 | Deep cavity welding wedge-shaped cleaver |
| CN116000511A (en) * | 2022-12-26 | 2023-04-25 | 深圳市海志亿半导体工具有限公司 | Cutter head for enhancing fine-pitch wire feeding forming effect |
| CN116000511B (en) * | 2022-12-26 | 2024-04-09 | 深圳市海志亿半导体工具有限公司 | Cutter head for enhancing fine-pitch wire feeding forming effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215008142U (en) | Wedge-shaped riving knife | |
| CN209681728U (en) | A kind of ultrasonic vibration cutting knife handle | |
| CN218123354U (en) | Wedge-shaped riving knife for thick wire deep cavity bonding | |
| CN215919404U (en) | Multi-wire-groove riving knife capable of improving riving knife bonding efficiency | |
| CN211428120U (en) | Chopper for improving routing quality | |
| CN113787250B (en) | Promote wedge riving knife structure of lead bonding precision | |
| CN213560516U (en) | Split type ultrasonic wave bonding tool | |
| CN113770501B (en) | Wedge-shaped cleaver structure for improving bonding density of lead | |
| CN215008143U (en) | Cleaver for wire bonding | |
| CN216773179U (en) | Aluminum wire bonding cleaver | |
| CN201102088Y (en) | Machining tool bit for circuit board wire lead slot | |
| CN211980567U (en) | Perforation type cleaver for semiconductor lead bonding | |
| CN211759353U (en) | Micro-electronic micro-connection deep cavity welding brazing chopper | |
| CN218855864U (en) | Deep cavity welding wedge-shaped cleaver with groove type tool bit end face | |
| CN218385176U (en) | Wedge-shaped riving knife with high efficiency and low energy consumption | |
| CN220612629U (en) | Welding chopper for bonding | |
| CN202317264U (en) | Wind power razing saw blade | |
| CN113035725A (en) | Deep cavity bonding method | |
| CN211588898U (en) | Low controllable friction stir welding of preforming and shoulder pair of flowing welding set | |
| CN217667099U (en) | Deep cavity wedge-shaped welding chopper | |
| CN209520437U (en) | Ceramic substrate cutting blade | |
| CN218585926U (en) | Welding chopper | |
| CN208374232U (en) | Green body and its cutter with hard material | |
| CN221201113U (en) | Large-wire-diameter wire bonding riving knife | |
| CN216065816U (en) | Circular saw blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100035 No. 2, xinwai street, Xicheng District, Beijing Patentee after: China Youyan Technology Group Co.,Ltd. Patentee after: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: 100035 No. 2, xinwai street, Xicheng District, Beijing Patentee before: Youyan Technology Group Co.,Ltd. Patentee before: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |