CN110267511A - Electromagnetic screen, microwave components, signal transmission apparatus and airtight method for welding - Google Patents
Electromagnetic screen, microwave components, signal transmission apparatus and airtight method for welding Download PDFInfo
- Publication number
- CN110267511A CN110267511A CN201910569432.7A CN201910569432A CN110267511A CN 110267511 A CN110267511 A CN 110267511A CN 201910569432 A CN201910569432 A CN 201910569432A CN 110267511 A CN110267511 A CN 110267511A
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- China
- Prior art keywords
- cover plate
- inner cover
- opening
- cartridge body
- upper cartridge
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0056—Casings specially adapted for microwave applications
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of electromagnetic screens of microwave components, comprising: upper cartridge body, lower box body and inner cover plate；Upper cartridge body has the first opening, and the first opening is opposite with the bottom surface of upper cartridge body；Lower box body has the second opening, and the second opening is opposite with the bottom surface of lower box body；Inner cover plate is set between upper cartridge body and lower box body；The bottom surface of upper cartridge body is extended with the first divider wall towards the first opening, and the upper surface of inner cover plate is equipped with first connecting portion, and the extending end and first connecting portion of the first divider wall are removable to be connected；The bottom surface of lower box body is extended with the second divider wall towards the second opening, and the lower surface of inner cover plate is equipped with second connecting portion, and the extending end and second connecting portion of the second divider wall are removable to be connected；The side of first opening is equipped with the first recessed portion, and the side of the second opening is equipped with the second recessed portion, and the first recessed portion, the second recessed portion form solder accommodation groove；Inner cover plate is welded to connect with the edge of the first opening and the edge of the second opening.
Description
Technical field
The invention belongs to microwave technical field more particularly to a kind of electromagnetic screens of microwave components, microwave components, letter
Number transmission device and airtight method for welding.
Background technique
With the development of semiconductor technology, Multi-channel microwave component is used widely in every field.Due to multichannel
The microwave signal of microwave components interchannel generates leakage, crosstalk, need between channel into isolation；It is equipped in microwave components big
The bare chip of amount, in order to can guarantee its long service reliability under various circumstances, it is necessary to level Hermetic Package is carried out to microwave components,
Prevent unfavorable factor such as oxygen, steam, metallic particles of external environment etc. from destroying to bare chip.
Different application field proposes different application demands to microwave components, such as miniaturization, integrated, multichannel.It is double
Layer Multi-channel microwave component meets the requirement of miniaturization, multichannel, is one of them important direction.
The electromagnetic screen structural member of existing microwave components is more, and assembly movement is more, and welding positioning accuracy is low.
Summary of the invention
Electromagnetic screen, microwave components, the signal transmission that technical purpose of the invention is to provide a kind of microwave components are set
Standby and airtight method for welding, the electromagnetic screen structure of the microwave components are simple and convenient to operate, weld positioning accuracy height.
To solve the above problems, the technical solution of the present invention is as follows:
A kind of electromagnetic screen of microwave components, comprising: upper cartridge body, lower box body and inner cover plate；The upper cartridge body tool
There is the first opening, first opening is opposite with the bottom surface of the upper cartridge body；The lower box body has second to be open, and described second
It is open opposite with the bottom surface of the lower box body；The inner cover plate is set between the upper cartridge body and the lower box body, the inner cover
The top surface edge of plate is bonded with the edge of first opening, the lower surface edge of the inner cover plate and second opening
Edge fitting；The bottom surface of the upper cartridge body is extended with the first divider wall, the upper surface of the inner cover plate towards first opening
Equipped with first connecting portion, the extending end of first divider wall and the first connecting portion are removable connected；The lower box
The bottom surface of body is extended with the second divider wall towards second opening, and the lower surface of the inner cover plate is equipped with second connecting portion, institute
Extending end and the second connecting portion for stating the second divider wall are removable connected；The side of first opening is equipped with first
Recessed portion, the side of second opening are equipped with the second recessed portion, and first recessed portion, second recessed portion form solder
Accommodation groove；The edge at the edge and second opening of the inner cover plate and first opening is welded to connect.
An embodiment according to the present invention, the first connecting portion are the first card slot, the extending end of first divider wall
It is caught in first card slot；And/or the second connecting portion is the second card slot, the extending end of second divider wall is caught in institute
State the second card slot.
An embodiment according to the present invention, the side of the inner cover plate are extended with male part toward outside, the inner cover plate it is upper
The upper surface of marginal surface and the male part has a First terrace in thickness direction, the lower surface edge of the inner cover plate with
The lower surface of the male part has second step face in thickness direction；The male part be clipped in it is described first opening edge with
Between the edge of second opening；The First terrace is bonded with the inner wall of the upper cartridge body, the second step face with
The inner wall of the lower box body is bonded.
Based on identical design, the present invention also provides a kind of microwave components, including the electromagnetic shielding in above-described embodiment
Device.
Based on identical design, the present invention also provides a kind of signal transmission apparatus, including the electromagnetism in above-described embodiment
Microwave components in screening arrangement or above-described embodiment.
Based on identical design, the present invention also provides a kind of airtight method for welding of microwave components, the microwave components
Including the electromagnetic screen in above-described embodiment, the airtight method for welding includes:
By inner cover plate assembly on the lower box body, the extending end of second divider wall is connect with described second
Portion is connected；
By upper cartridge body assembly in the inner cover plate, the extending end of first divider wall is connect with described first
Portion is connected；
Solder is placed in the solder accommodation groove；
The microwave components assembled are brazed.
An embodiment according to the present invention, the airtight method for welding further include setting up the side of the inner cover plate for outward
Side is extended with male part, and the upper surface of the top surface edge of the inner cover plate and the male part is had the in thickness direction design
There is second step in the lower surface of the lower surface edge of the inner cover plate and the male part in thickness direction design by one step surface
Face；
It further comprise the lower surface and described for making the male part on the lower box body by inner cover plate assembly
The edge fitting of two openings, and it is bonded the second step face with the inner wall of the lower box body；
It further comprise the upper surface and described for making the male part in the inner cover plate by upper cartridge body assembly
The edge fitting of one opening, and it is bonded the First terrace with the inner wall of the upper cartridge body.
An embodiment according to the present invention, the described pair of microwave components assembled carry out soldering and further comprise:
The microwave components are transferred in Vacuum Eutectic furnace and carry out reflow soldering；
Pressing force is applied to the upper cartridge body, to realize the close contact of the upper cartridge body and the inner cover plate and described
The close contact of inner cover plate and the lower box body；
The microwave components being welded are taken out from Vacuum Eutectic furnace, and are cooled down.
An embodiment according to the present invention, described further comprises on the upper cartridge body to upper cartridge body application pressing force
Place briquetting.
An embodiment according to the present invention, the weight of the briquetting are configured as 200g~500g.
The present invention due to using the technology described above, makes it have the following advantages that and actively imitate compared with prior art
Fruit:
1) electromagnetic screen of the microwave components in the embodiment of the present invention is respectively equipped in the upper and lower surface of inner cover plate
One interconnecting piece and second connecting portion, when assembly, first connecting portion can be connected with the first divider wall of upper cartridge body, and second connecting portion can
It is connected with the second divider wall of lower box body, upper cartridge body, inner cover plate, the precise positioning between lower box body may be implemented in this way, it can be with
Tooling when assembly is saved, welding positioning accuracy is high；It is effectively acted as by the first divider wall, the second divider wall and inner cover plate
Upper and lower microwave components interchannel effectiveness.
2) electromagnetic screen of the microwave components in the embodiment of the present invention is equipped with the first recess in the side of the first opening
The side in portion, the second opening is equipped with the second recessed portion, and after assembly, the first recessed portion, the second recessed portion will form lateral solder
Accommodation groove, the solder that solder placement can be placed in solder accommodation groove can weld the bonding crack of upper cartridge body, inner cover plate and lower box body
Gap, and solder will not pollute the lateral surface of lower box body.
3) electromagnetic screen of the microwave components in the embodiment of the present invention is outside the side of inner cover plate is extended with toward outside
Protrusion, and there are First terrace, second in the side of inner cover plate in the upper and lower surfaces both direction of male part respectively
Step surface, after assembly is completed, First terrace is bonded with the inner wall of upper cartridge body, the inner wall patch of second step face and lower box body
It closes, in this way when welding, solder is collected at solder accommodation groove after melting, and can also soak the seam between box body and inner cover plate
Gap, First terrace, second step face can play the role of preventing solder or scaling powder from spilling over upper cartridge body or lower box body inner cavity.
Detailed description of the invention
Fig. 1 is a kind of configuration diagram of the electromagnetic screen of microwave components of the invention；
Fig. 2 is the amplification diagram that a-quadrant improves after (increase male part) in Fig. 1；
Fig. 3 is the partial enlarged view of B area in Fig. 1；
Fig. 4 is a kind of airtight method for welding flow chart of microwave components of the invention.
Description of symbols:
1: upper cartridge body；101: the first divider walls；102: the first recessed portions；
2: lower box body；201: the second divider walls；202: the second recessed portions；
3: inner cover plate；301: the first card slots；302: the second card slots；303: male part；304: First terrace；305: the second
Step surface；
4: solder.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to a kind of electromagnetic screen of microwave components proposed by the present invention, microwave
Component, signal transmission apparatus and airtight method for welding are described in further detail.According to following explanation and claims, this hair
Bright advantage and feature will become apparent from.
Embodiment 1
Referring to Fig. 1 to Fig. 3, a kind of electromagnetic screen of microwave components, comprising: upper cartridge body 1, lower box body 2 and inner cover
Plate 3；Upper cartridge body 1 has the first opening, and the first opening is opposite with the bottom surface of upper cartridge body 1；Lower box body 2 has second to be open, and second
It is open opposite with the bottom surface of lower box body 2；Inner cover plate 3 be set between upper cartridge body 1 and lower box body 2, the top surface edge of inner cover plate 3 with
The edge fitting of first opening, the lower surface edge of inner cover plate 3 are bonded with the edge of the second opening；The bottom surface direction of upper cartridge body 1
First opening is extended with the first divider wall 101, and the upper surface of inner cover plate 3 is equipped with first connecting portion, the extension of the first divider wall 101
End and first connecting portion are removable connected；The bottom surface of lower box body 2 is extended with the second divider wall 201 towards the second opening, interior
The lower surface of cover board 3 is equipped with second connecting portion, and the extending end and second connecting portion of the second divider wall 201 are removable to be connected；
The side of first opening is equipped with the first recessed portion 102, and the side of the second opening is equipped with the second recessed portion 202, the first recessed portion
102, the second recessed portion 202 forms solder accommodation groove；It welds at the edge at the edge and the second opening of inner cover plate 3 and the first opening
Connection.
The electromagnetic screen of microwave components in the present embodiment is respectively equipped with the first connection in the upper and lower surface of inner cover plate 3
Portion and second connecting portion, when assembly, first connecting portion can be connected with the first divider wall 101 of upper cartridge body 1, and second connecting portion can be with
Second divider wall 201 of lower box body 2 is connected, and upper cartridge body 1, inner cover plate 3, the precise positioning between lower box body 2 may be implemented in this way,
Tooling when assembly can be saved, welding positioning accuracy is high；Pass through the first divider wall 101, the second divider wall 201 and inner cover plate 3
Effectively act as upper and lower microwave components interchannel effectiveness.By being equipped with the first recessed portion in the side of the first opening
102, the side of the second opening is equipped with the second recessed portion 202, and after assembly, the first recessed portion 102, the second recessed portion 202 be will form
Lateral solder accommodation groove, the interior solder 4 placed of solder accommodation groove can weld the knot of upper cartridge body 1, inner cover plate 3 and lower box body 2
Joint close gap, and solder 4 will not pollute the lateral surface of lower box body 2.
Referring to Fig. 3, further, first connecting portion is the first card slot 301, and the extending end of the first divider wall 101 is caught in
First card slot 301；And/or second connecting portion is the second card slot 302, the extending end of the second divider wall 201 is caught in the second card slot
302.It can be with by the matching of the matching of the first divider wall 101 and the first card slot 301, the second divider wall 201 and the second card slot 302
It realizes upper cartridge body 1, inner cover plate 3, the precise positioning between lower box body 2, tooling when assembly can be saved.
Referring to Fig. 2, further, the side of inner cover plate 3 is extended with male part 303, the upper surface side of inner cover plate 3 toward outside
The upper surface of edge and male part 303 has First terrace 304, the lower surface edge and male part of inner cover plate 3 in thickness direction
303 lower surface has second step face 305 in thickness direction；Male part 303 is clipped in the edge and the second opening of the first opening
Edge between；First terrace 304 is bonded with the inner wall of upper cartridge body 1, and second step face 305 is bonded with the inner wall of lower box body 2.
The electromagnetic screen of microwave components in embodiment of the present invention is extended with male part 303 toward outside in the side of inner cover plate 3,
And there are First terrace 304, in the side of inner cover plate 3 respectively in the upper and lower surfaces both direction of male part 303
Two step surfaces 305, after assembly is completed, First terrace 304 is bonded with the inner wall of upper cartridge body 1, second step face 305 and lower box
The inner wall of body 2 is bonded, and in this way when welding, solder 4 is collected at solder accommodation groove after melting, and can also soak box body and inner cover
Gap between plate 3, First terrace 304, second step face 305 can play prevents solder 4 or scaling powder from spilling over upper cartridge body 1
Or the effect of 2 inner cavity of lower box body.
Embodiment 2
Based on identical design, the present invention also provides a kind of microwave components, including the electromagnetic shielding dress in embodiment 1
It sets.
Embodiment 3
Based on identical design, the present invention also provides a kind of signal transmission apparatus, including the electromagnetic shielding in embodiment 1
Microwave components in device or embodiment 2.
Embodiment 4
Referring to Fig. 1 to Fig. 4, it is based on identical design, the present invention also provides a kind of airtight method for welding of microwave components,
Microwave components include the electromagnetic screen in embodiment 1, and airtight method for welding includes:
By the assembly of inner cover plate 3 on lower box body 2, the extending end and second connecting portion of the second divider wall 201 are connected；
By the assembly of upper cartridge body 1 in inner cover plate 3, the extending end and first connecting portion of the first divider wall 101 are connected；
Solder 4 is placed in solder accommodation groove, optionally, places into solder accommodation groove in 4 dip-coating of solder after scaling powder
In；
The microwave components assembled are brazed.
Specifically the upper cartridge body 1 in the present invention, lower box body 2 are for assembling Multi-channel microwave circuit, upper cartridge body after assembly
1,2 opposite direction of lower box body is brazed together to form an entirety.Upper cartridge body 1, lower box body 2 use kovar alloy, silumin etc.
The material processing that thermal expansion coefficient (CTE) and semiconductor material match.Upper cartridge body 1,2 surface of lower box body may be selected to be electroplated
Nickel, gold, nickel thickness are greater than 5 μm, 0.1 μm~0.2 μm of layer gold thickness.Specifically, inner cover plate 3 uses and upper cartridge body 1, lower box body 2
The same material is processed, or the material being close with cell material thermal expansion coefficient (CTE), but must be had certain strong
Degree.Electronickelling, gold may be selected in lid surface, and nickel thickness is greater than 5 μm, 0.1 μm~0.2 μm of layer gold thickness.Solder 4 is eutectic spot welding
Material, is e.g. Sn63Pb37 or Sn80Pb15Ag5.
Airtight method for welding in the present embodiment is using the electromagnetic screen in embodiment 1, first in assembling process
Interconnecting piece can be connected with the first divider wall 101 of upper cartridge body 1, and second connecting portion can be solid with the second divider wall 201 of lower box body 2
Even, upper cartridge body 1, inner cover plate 3, the precise positioning between lower box body 2 may be implemented in this way, tooling when assembly can be saved, and
And it can be improved soldering precision；It is effectively acted as by the first divider wall 101, the second divider wall 201 and inner cover plate 3 upper and lower micro-
Wave component interchannel effectiveness.
The airtight soldering and sealing common method of microwave components includes the method for Laser seal welding, parallel seam welding, Laser seal welding, parallel soldering and sealing
Suitable for plane-welding, it is not suitable for the double-deck microwave components side welding.Solder accommodation groove in the present embodiment is in assembly
Side ensure that welding effect by the way of soldering.
Further, airtight method for welding further includes setting up the side of inner cover plate 3 to be extended with male part toward outside
303, the upper surface of the top surface edge of inner cover plate 3 and male part 303 there is into First terrace 304 in thickness direction design, it will
There are second step face 305 in the lower surface edge of inner cover plate 3 and the lower surface of male part 303 in thickness direction design；
It further comprise the edge for making the lower surface of male part 303 with the second opening on lower box body 2 by the assembly of inner cover plate 3
Fitting, and it is bonded second step face 305 and the inner wall of lower box body 2；
It further comprise the edge for making the upper surface of male part 303 with the first opening in inner cover plate 3 by the assembly of upper cartridge body 1
Fitting, and it is bonded First terrace 304 and the inner wall of upper cartridge body 1.
First terrace 304 is bonded with the inner wall of upper cartridge body 1, and second step face 305 is bonded with the inner wall of lower box body 2, this
For sample when welding, solder 4 is collected at solder accommodation groove after melting, and can also soak the gap between box body and inner cover plate 3, the
One step surface 304, second step face 305, which can play, prevents solder 4 or scaling powder from spilling over 2 inner cavity of upper cartridge body 1 or lower box body
Effect.
Further, carrying out soldering to the microwave components assembled further comprises:
Microwave components are transferred in Vacuum Eutectic furnace and carry out reflow soldering；
Pressing force is applied to upper cartridge body 1, to realize close contact and inner cover plate 3 and the lower box of upper cartridge body 1 and inner cover plate 3
The close contact of body 2；
The microwave components being welded are taken out from Vacuum Eutectic furnace, and are cooled down.
Further, applying pressing force to upper cartridge body 1 further comprises placing briquetting on upper cartridge body 1.Specifically, briquetting
Weight be configured as 200g~500g.
The microwave components that method in the present embodiment obtains also conveniently are reprocessed, will be micro- if the double-deck microwave components needs are reprocessed
Wave component is placed on heated in thermal station after separate upper cartridge body 1, lower box body 2 and cover board, can with inhale tin band will remain in upper cartridge body 1,
It exhausts on 2 recessed portion of lower box body with the solder 4 at 3 edge of inner cover plate；It after removing fifth wheel, repeats the above steps and welds again, weld
The pressure applied to upper cartridge body 1 can be improved in termination process, guarantee that upper cartridge body 1, lower box body 2 and cover board come into full contact with.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode.Even if to the present invention, various changes can be made, if these variations belong to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then still fall within the protection scope of the present invention.
Claims (10)
1. a kind of electromagnetic screen of microwave components characterized by comprising upper cartridge body, lower box body and inner cover plate；
The upper cartridge body has the first opening, and first opening is opposite with the bottom surface of the upper cartridge body；The lower box body has
Second opening, second opening are opposite with the bottom surface of the lower box body；
The inner cover plate is set between the upper cartridge body and the lower box body, the top surface edge of the inner cover plate and described first
The edge of opening is bonded, and the lower surface edge of the inner cover plate is bonded with the edge of second opening；
The bottom surface of the upper cartridge body is extended with the first divider wall towards first opening, and the upper surface of the inner cover plate is equipped with the
One interconnecting piece, the extending end of first divider wall and the first connecting portion are removable connected；The bottom of the lower box body
The second divider wall is extended with facing towards second opening, the lower surface of the inner cover plate is equipped with second connecting portion, and described second
The extending end of divider wall and the second connecting portion are removable connected；
The side of first opening is equipped with the first recessed portion, and the side of second opening is equipped with the second recessed portion, and described the
One recessed portion, second recessed portion form solder accommodation groove；
The edge at the edge and second opening of the inner cover plate and first opening is welded to connect.
2. the electromagnetic screen of microwave components as described in claim 1, which is characterized in that the first connecting portion is first
Card slot, the extending end of first divider wall are caught in first card slot；And/or the second connecting portion is the second card slot,
The extending end of second divider wall is caught in second card slot.
3. the electromagnetic screen of microwave components as described in claim 1, which is characterized in that the side of the inner cover plate is outward
Side is extended with male part, and the top surface edge of the inner cover plate and the upper surface of the male part have First in thickness direction
The lower surface of terrace, the lower surface edge of the inner cover plate and the male part has second step face in thickness direction；
The male part is clipped between the edge of first opening and the edge of second opening；The First terrace with
The inner wall of the upper cartridge body is bonded, and the second step face is bonded with the inner wall of the lower box body.
4. a kind of microwave components, which is characterized in that including electromagnetic screen described in any one of claims 1 to 3.
5. a kind of signal transmission apparatus, which is characterized in that including electromagnetic screen described in any one of claims 1 to 3,
Or microwave components as claimed in claim 4.
6. a kind of airtight method for welding of microwave components, which is characterized in that the microwave components include electricity described in claim 1
Magnetic shielding device, the airtight method for welding include:
By inner cover plate assembly on the lower box body, the extending end of second divider wall and the second connecting portion are solid
Even；
By upper cartridge body assembly in the inner cover plate, the extending end of first divider wall and the first connecting portion are solid
Even；
Solder is placed in the solder accommodation groove；
The microwave components assembled are brazed.
7. airtight method for welding as claimed in claim 6, which is characterized in that further include the side of the inner cover plate is set up for
It is extended with male part toward outside, the upper surface of the top surface edge of the inner cover plate and the male part is designed in thickness direction
There is First terrace, the lower surface of the lower surface edge of the inner cover plate and the male part is had second in thickness direction design
Step surface；
It further comprise opening the lower surface of the male part with described second on the lower box body by inner cover plate assembly
The edge fitting of mouth, and it is bonded the second step face with the inner wall of the lower box body；
It further comprise opening the upper surface of the male part with described first in the inner cover plate by upper cartridge body assembly
The edge fitting of mouth, and it is bonded the First terrace with the inner wall of the upper cartridge body.
8. airtight method for welding as claimed in claim 6, which is characterized in that the described pair of microwave components assembled carry out
Soldering further comprises:
The microwave components are transferred in Vacuum Eutectic furnace and carry out reflow soldering；
To the upper cartridge body apply pressing force, with realize the upper cartridge body and the inner cover plate close contact and the inner cover
The close contact of plate and the lower box body；
The microwave components being welded are taken out from Vacuum Eutectic furnace, and are cooled down.
9. airtight method for welding as claimed in claim 8, which is characterized in that described to apply pressing force into one to the upper cartridge body
Step includes placing briquetting on the upper cartridge body.
10. airtight method for welding as claimed in claim 9, which is characterized in that the weight of the briquetting be configured for 200g~
500g。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910412498 | 2019-05-17 | ||
| CN2019104124985 | 2019-05-17 |
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| CN110267511B CN110267511B (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010860A (en) * | 2019-12-18 | 2020-04-14 | 合肥学院 | Multi-channel flexible seamless electromagnetic shielding three-dimensional sheet type TR (transmitter-receiver) component and packaging method |
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| CN102019476B (en) * | 2010-12-08 | 2012-08-08 | 成都四威高科技产业园有限公司 | Braze welding method of slot antenna |
| CN204145913U (en) * | 2014-09-01 | 2015-02-04 | 无锡华测电子系统有限公司 | A kind of chip microwave components structure |
| US20190110365A1 (en) * | 2017-10-06 | 2019-04-11 | Fujitsu Limited | Wiring board, electronic apparatus, method for attaching sheet metal covers, and method for manufacturing wiring board |
| CN108091969A (en) * | 2017-12-04 | 2018-05-29 | 上海无线电设备研究所 | A kind of high-isolation microwave transmitting and receiving component |
| CN109041564A (en) * | 2018-09-03 | 2018-12-18 | 阳光电源股份有限公司 | A kind of electromagnetic shielding shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111010860A (en) * | 2019-12-18 | 2020-04-14 | 合肥学院 | Multi-channel flexible seamless electromagnetic shielding three-dimensional sheet type TR (transmitter-receiver) component and packaging method |
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