CN218385176U - Wedge-shaped riving knife with high efficiency and low energy consumption - Google Patents
Wedge-shaped riving knife with high efficiency and low energy consumption Download PDFInfo
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- CN218385176U CN218385176U CN202220994493.5U CN202220994493U CN218385176U CN 218385176 U CN218385176 U CN 218385176U CN 202220994493 U CN202220994493 U CN 202220994493U CN 218385176 U CN218385176 U CN 218385176U
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 22
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- 240000005702 Galium aparine Species 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a wedge chopper of high efficiency low energy consumption belongs to integrated circuit package field, the wedge chopper is one-piece structure, including handle of a knife and tool bit two parts, the handle of a knife is inclined plane type, step type or plane, the tool bit is the wedge structure, and the tool bit includes oblique pin hole and bonding face, be equipped with bonding grooves such as parallel circular arc groove, parallel V type groove, perpendicular double arc groove or perpendicular curved surface groove on the bonding face. The utility model effectively improves the precision of the lead bonding position through the design of the unique structure of the lead hole and the bonding surface, avoids the deviation in the bonding process, and improves the bonding efficiency and the bonding quality of the lead bonding; the bonding contact area is increased, the bonding strength is effectively improved, the bonding energy transfer efficiency is improved, the bonding power is reduced, and the high-efficiency and low-energy consumption bonding of the wedge-shaped welding cleaver for micro-assembly is realized.
Description
Technical Field
The utility model belongs to integrated circuit encapsulation field, in particular to wedge chopper of high efficiency low energy consumption.
Background
The micro-assembly technology has the characteristics of miniaturization, high integration and high reliability, and the performance and the service life of the microwave assembly adopting the micro-assembly technology are obviously improved. Wire bonding is a key technology for realizing the electrical interconnection of microwave multi-chip modules, the bonding quality directly influences the reliability and stability of a circuit, and the microwave characteristics of the circuit are greatly influenced. The lead bonding mainly comprises two bonding processes of wedge bonding and ball bonding, wherein the wedge bonding leads deform and diffuse the leads through a bonding surface under the action of pressure, ultrasonic energy or heat energy and the like, so that information interconnection between the leads and the bonding pads is realized.
The correct selection of the wedge bond tool (wedge cleaver) is critical to the micro-assembly wedge bond process. The design and selection of the wedge-shaped cleaver are key links for optimizing the wedge-shaped welding process. The design and selection of the wedge cleaver is influenced by a combination of factors including the wire, substrate, pad, and bonding apparatus. Specifically, the size and structural design of the wedge chopper is influenced by factors such as pad size, pad spacing, wire diameter and performance, substrate properties, bonder speed and accuracy, wire loop height, wire loop length, and package layout. The wedge-shaped riving knife must efficiently and consistently deliver ultrasonic energy to the wire bond pad interface to produce a consistent and reliable interconnection.
At present, wedge chopper's bonding face is CG cell type and plane type usually, and wherein, the CG groove is mutually perpendicular with oblique pin hole conveying lead wire direction, and the lead wire still has the incline in the data send process, curls, the overlength, rosin joint, pad drop, common problems such as solder joint appearance inconsistent, for further improvement bonding quality and bonding efficiency, reduce bonding power simultaneously, develop low energy consumption bonding technology, the utility model discloses combine together with wedge chopper handle of a knife structure, through designing unique bonding face structure, provide the wedge chopper of a high efficiency low energy consumption.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wedge chopper with high efficiency and low energy consumption aiming at the common problems in the bonding process, which is characterized in that the wedge chopper is an integrated structure and comprises a knife handle 1 and a knife head 2; the cutter handle 1 comprises an inclined plane type, a step type or a plane type; wherein, the inclined plane type and the step type knife handles are provided with straight lead holes 5; the straight lead hole 5 of the stepped knife handle is a segmented micropore; the planar knife handle is a solid knife handle, and the lead is penetrated and transmitted from the inclined lead hole 3;
the tool bit is wedge structure to the tool bit portion of tool bit 2 divide into the V font, and oblique pin hole 3 is opened to one side of V font, and the another side is bonding face 4, is equipped with bonding groove 6 on bonding face 4, and bonding groove 6 includes parallel circular arc groove, parallel V type groove, perpendicular double arc groove or perpendicular curved surface groove.
When the bonding groove 6 of the bonding surface 4 is a parallel arc groove, the direction is parallel to the transmission lead direction of the inclined lead hole 3, and the groove width B 1 Satisfy the requirements of
L is the length of the bonding groove and the depth H 1 Satisfy the requirements of
When the bonding groove 6 of the bonding surface 4 is a parallel V-shaped groove, the groove is parallel to the lead conveying direction of the inclined lead hole, and the width B of the groove 2 Satisfy the requirements of
Groove depth H 2 Satisfy the requirement of
The bonding groove 6 of the bonding surface 4 is a vertical double-arc groove which is vertical to the lead conveying direction of the inclined lead hole 3,
groove depth H 3 Satisfy the requirement of
When the bonding groove 6 of the bonding surface 4 is a vertical curved groove, the direction of the lead transmission of the inclined lead hole 3 is vertical, and the groove width B 4 = L, groove depth H 4 Satisfy the requirements of
The beneficial effects of the utility model are that: the utility model discloses a design of pin hole and bonding face structure for the bonding lead can smoothly convey the chopper bonding face, guarantees the lead bonding position precision, avoids the skew at the bonding in-process, has improved the bonding efficiency and the bonding quality of lead bonding. Through the design of a parallel groove structure or a vertical structure with a large surface area of a bonding surface, the bonding contact area is increased, the uniform stress of a bonding lead is further improved, the bonding energy transfer efficiency is improved, the bonding strength is effectively improved, and therefore the high-efficiency bonding of the wedge-shaped welding chopper is realized. Through the mutual matching of the unique structures of the tool handle and the tool bit, the energy conversion rate of the bonding surface of the tool handle and the tool bit is improved, the bonding power can be further reduced, and the low-energy-consumption bonding of the wedge-shaped welding and cleaving tool for micro-assembly is realized.
Drawings
FIG. 1 is a schematic view of a wedge-shaped chopper with high efficiency and low energy consumption, wherein a is an integral structure; b partial cross-sectional view;
FIG. 2 is a schematic diagram of a wedge-shaped riving knife handle with high efficiency and low energy consumption, wherein, (a) the inclined plane type, (b) the step type and (c) the plane type.
FIG. 3 is a schematic view of a bonding surface of a parallel arc groove of a wedge-shaped riving knife.
FIG. 4 is a schematic view of a bonding surface of a parallel V-shaped groove of a wedge-shaped riving knife.
FIG. 5 is a schematic view of a vertical double-arc groove bonding surface of a wedge-shaped riving knife.
FIG. 6 is a schematic view of the vertical curved groove bonding surface of the wedge-shaped riving knife.
Description of reference numerals: the method comprises the following steps of 1-tool handle, 2-tool bit, 3-inclined lead hole, 4-bonding surface, 5-straight lead hole and 6-bonding groove.
Detailed Description
The utility model provides a wedge chopper with high efficiency and low energy consumption, which is clearly and completely described below by combining the embodiment and the attached drawings,
FIG. 1 is a schematic view of a wedge-shaped chopper with high efficiency and low energy consumption, wherein a is an integral structure; b partial cross-sectional view; fig. 2 is a schematic structural diagram of a wedge-shaped riving knife handle with high efficiency and low energy consumption, wherein (a) an inclined plane type, (b) a step type, and (c) a plane type.
The wedge-shaped riving knife is of an integrated structure and comprises a knife handle 1 and a knife head 2; the tool holder 1 comprises an inclined plane type, a step type or a plane type (as shown in fig. 2); wherein, the inclined plane type and the step type knife handles are provided with straight lead holes 5; the straight lead hole 5 of the stepped cutter handle is a segmented micropore (as shown in a partial sectional view b in fig. 1); the planar knife handle is a solid knife handle, and the lead is penetrated and transmitted from the inclined lead hole 3 (as shown in figure 2);
the tool bit is of a wedge-shaped structure, the tool bit part of the tool bit 2 is of a V shape, one side of the V shape is provided with an inclined lead hole 3, the other side of the V shape is provided with a bonding surface 4, a bonding groove 6 is arranged on the bonding surface 4, and the bonding groove 6 comprises a parallel arc groove, a parallel V-shaped groove, a vertical double-arc groove or a vertical curved surface groove (as shown in figures 3, 4, 5 and 6).
When the bonding groove 6 of the bonding surface 4 is a parallel arc groove, the groove is parallel to the lead conveying direction of the inclined lead hole 3, and the width B of the groove 1 Satisfy the requirement of
L is the length of the bonding groove and the depth H 1 Satisfy the requirement of
When the bonding groove 6 of the bonding surface 4 is a parallel V-shaped groove, the groove is parallel to the lead conveying direction of the inclined lead hole, and the width B of the groove 2 Satisfy the requirement of
Groove depth H 2 Satisfy the requirement of
The bonding groove 6 of the bonding surface 4 is a vertical double-arc groove which is vertical to the lead conveying direction of the inclined lead hole 3,
groove depth H 3 Satisfy the requirements of
When the bonding groove 6 of the bonding surface 4 is a vertical curved groove, the direction of the lead transmission of the inclined lead hole 3 is vertical, and the groove width B 4 = L, groove depth H 4 Satisfy the requirement of
Example 1:
the wedge-shaped riving knife with high efficiency and low energy consumption as shown in figures 1-3 is of an integrated structure and comprises a knife handle and a knife head, wherein the knife handle is of an inclined plane type, and the knife handle is provided with a straight lead hole. The tool bit is of a wedge-shaped structure and comprises an inclined lead hole and a bonding surface, and the bonding surface is provided with parallel circular arc bonding grooves. The parallel arc bonding groove of the bonding surface is parallel to the lead conveying direction of the inclined lead hole, and the groove width is B 1 L/2, L is the length of the bonding groove, and the depth H of the bonding groove 1 Is B 1 /3。
Example 2:
as shown in figures 1-2 and 4, the wedge-shaped chopper with high efficiency and low energy consumption is of an integrated structure and comprises a knife handle and a knife head, wherein the knife handle is of a step shape, and the knife handle is arrangedThere is a straight pin hole, which is a segmented type micro-hole. The tool bit is of a wedge-shaped structure and comprises an inclined lead hole and a bonding surface, and the bonding surface is provided with a parallel V-shaped bonding groove. The parallel V-shaped groove of the bonding surface is parallel to the lead conveying direction of the inclined lead hole, the groove width is 2L/3, and the groove depth is H 2 Is composed of
Example 3:
as shown in fig. 1-2 and 5, the wedge-shaped riving knife with high efficiency and low energy consumption is of an integrated structure and comprises a knife handle and a knife head, wherein the knife handle is a plane type, and the knife handle is a solid knife handle. The tool bit is of a wedge-shaped structure and comprises an inclined lead hole and a bonding surface, and the bonding surface is provided with a vertical double-arc groove. The vertical double-arc groove of the bonding surface is vertical to the lead conveying direction of the inclined lead hole, and the groove width B 3 L/4, groove depth H 3 Is B 3 /3。
Example 4:
the wedge-shaped riving knife with high efficiency and low energy consumption as shown in figures 1-2 and 6 is of an integrated structure and comprises a knife handle and a knife head, wherein the knife handle is of a step shape, the knife handle is provided with a straight lead hole, and the straight lead hole is a segmentation type micropore. The tool bit is of a wedge-shaped structure and comprises an inclined lead hole and a bonding surface, and the bonding surface is provided with a vertical curved surface bonding groove. The vertical curved groove of the bonding surface is perpendicular to the lead conveying direction of the inclined lead hole, and the groove width is B 4 = L, groove depth H 4 Is composed of
Claims (5)
1. A wedge-shaped chopper with high efficiency and low energy consumption comprises a knife handle (1) and a knife head (2) which form an integrated structure; the knife is characterized in that the knife handle (1) comprises an inclined plane type, a step type or a plane type; wherein, the inclined plane type and the step type knife handles are provided with straight lead holes (5); the straight lead hole (5) of the stepped knife handle is a segmented micropore; the planar knife handle is a solid knife handle, and the lead passes through and is transmitted from the inclined lead hole (3);
the tool bit is wedge structure to the tool bit portion of tool bit (2) divide into the V font, and oblique pin hole (3) are opened to one side of V font, and the another side is bonding face (4), is equipped with bonding groove (6) on bonding face (4), and bonding groove (6) include parallel circular arc groove, parallel V type groove, perpendicular double arc groove or perpendicular curved surface groove.
2. A wedge-shaped chopper with high efficiency and low energy consumption as claimed in claim 1 wherein the bonding groove (6) of the bonding surface (4) is parallel to the lead conveying direction of the inclined lead hole (3) when it is a parallel arc groove, and the groove width B is wide 1 Satisfy the requirement of
L is the length of the bonding groove and the depth H 1 Satisfy the requirements of
3. The wedge chopper of claim 1, wherein the bonding groove (6) of the bonding surface (4) is a parallel V-shaped groove, and the width of the groove is B, and the groove is parallel to the lead conveying direction of the inclined lead hole 2 Satisfy the requirements of
Groove depth H 2 Satisfy the requirements of
4. The wedge chopper with high efficiency and low energy consumption as claimed in claim 1, wherein the bonding groove (6) of the bonding surface (4) is a vertical double arc groove perpendicular to the wire conveying direction of the inclined wire hole (3), and the groove width is B 3 Satisfy the requirement of
Groove depth H 3 Satisfy the requirement of
5. The wedge chopper with high efficiency and low energy consumption as claimed in claim 1, wherein the bonding groove (6) of the bonding surface (4) is a vertical curved groove which is perpendicular to the lead conveying direction of the inclined lead hole (3) and has a groove width B 4 = L, groove depth H 4 Satisfy the requirement of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220994493.5U CN218385176U (en) | 2022-04-24 | 2022-04-24 | Wedge-shaped riving knife with high efficiency and low energy consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220994493.5U CN218385176U (en) | 2022-04-24 | 2022-04-24 | Wedge-shaped riving knife with high efficiency and low energy consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218385176U true CN218385176U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220994493.5U Active CN218385176U (en) | 2022-04-24 | 2022-04-24 | Wedge-shaped riving knife with high efficiency and low energy consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218385176U (en) |
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2022
- 2022-04-24 CN CN202220994493.5U patent/CN218385176U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231215 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Patentee after: Youyan (Guangdong) new material technology Research Institute Address before: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee before: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right |