EP3577722A1 - Carte électronique à circuit imprimé comprenant une antenne à fentes intégrée et procédé de fabrication de celle-ci - Google Patents
Carte électronique à circuit imprimé comprenant une antenne à fentes intégrée et procédé de fabrication de celle-ciInfo
- Publication number
- EP3577722A1 EP3577722A1 EP18705686.6A EP18705686A EP3577722A1 EP 3577722 A1 EP3577722 A1 EP 3577722A1 EP 18705686 A EP18705686 A EP 18705686A EP 3577722 A1 EP3577722 A1 EP 3577722A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printed circuit
- cavity
- circuit board
- slots
- conductive layer
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002184 metal Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 238000001465 metallisation Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- 238000000206 photolithography Methods 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 11
- 238000003801 milling Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
- H01L21/4857—Multilayer substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
- H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/145—Arrangements wherein electric components are disposed between and simultaneously connected to two planar printed circuit boards, e.g. Cordwood modules
-
- 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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4697—Manufacturing multilayer circuits having cavities, e.g. for mounting components
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10098—Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/06—Lamination
- H05K2203/063—Lamination of preperforated insulating layer
Definitions
- the invention generally relates to the field of wireless communications. More particularly, the invention relates to a printed circuit board comprising at least one integrated slot antenna. The invention also relates to a method of manufacturing a printed circuit board comprising such a slot antenna.
- Wireless communications by radio links, have been developing spectacularly for the last twenty years or so.
- various wireless communication technologies have been developed and are well known such as, for example, those defined by the Bluetooth (registered trademark) standards for personal wireless networks, WiFi (registered trademark) for wireless networks.
- Local and UMTS and LTE registered trademarks
- Radio antennas are key components of wireless communication devices and constitute a significant obstacle to the miniaturization of radio communication modules and the reduction of costs. The miniaturization of radio antennas and the reduction of their cost are desirable to facilitate the integration of wireless communication modules in systems, and in particular those of the so-called SiP type (for "System in Package").
- Waveguide or cavity type slot antennas provide better performance. Such antennas are for example described in patent documents US604931 1A, EP2564466A1 and US2004 / 004576A1. However, in these antennas of the state of the art, the addition of a waveguide or a cavity increases the size of the antenna and has a significant impact on its cost.
- the invention relates to a circuit board comprising at least one slot antenna, the slot antenna comprising a cavity and a metal conductive layer covering the cavity and having a plurality of slots, the slots forming openings in the metal conductive layer.
- the cavity is formed, by removal of material, in the thickness of the printed circuit board and has a metallization layer on the walls, and the metal conductive layer, having the plurality of slots, is formed in a plate attached to the printed circuit board and closes the cavity.
- the metal conductive layer, having the plurality of slots is supported on a dielectric layer closing the cavity, the metal conductive layer being disposed outside the cavity.
- the metal conductive layer having the plurality of slots, is supported on a dielectric layer closing the cavity, the metal conductive layer being disposed inside the cavity.
- the metal conductive layer, having the plurality of slots, and the dielectric layer are formed in a CCL type laminate plate or a RCC type plate.
- the metallization layer is made of copper.
- the printed circuit electronic card comprises a plurality of slot antennas, the slot antennas being associated in an antenna array.
- the printed circuit board is of the multilayer type.
- the printed circuit board comprises a radio transmitter comprising at least one slot antenna and an electronic component implanted at the bottom of the slot antenna cavity.
- the electronic circuit board comprises a conductor in contact with the electronic component and having the function of extracting calories produced by the electronic component.
- the printed circuit board comprises a radio receiver comprising at least one slot antenna and an electronic component implanted at the bottom of the slot antenna cavity.
- the invention also relates to a method of manufacturing a printed circuit board, the printed circuit board being of the type comprising at least one slot antenna, the slot antenna comprising a cavity and a metal conductive layer covering the cavity and having a plurality of slots, the slots forming openings in the metal conductive layer, the method having steps of photolithography and etching.
- the method also includes a material removal step for forming the cavity in the thickness of the printed circuit board, a metallization step for forming a metallization layer on cavity walls, and a step of placing on the printed circuit board a plate including the metal conductive layer so as to close the cavity.
- the method also comprises a step of laminating a plurality of printed circuit boards to form the printed circuit board.
- - Fig.1 is a partial sectional view of a printed circuit board in a state that precedes the integration of a slot antenna for the realization of an electronic card according to the invention
- - Fig.2A is a partial sectional view of the printed circuit board of Fig.1 in which a cavity of the slot antenna has been made;
- - Fig.2B is a partial sectional view of several printed circuit boards before laminating thereof to form the printed circuit board according to the invention with the cavity of the slot antenna;
- - Fig.3 is a partial sectional view of the printed circuit board according to the invention of Fig.1 in which is integrated the slot antenna;
- - Figs.4A and 4B are top and side views of a first example slotted plate included in the antenna;
- - Figs.5A and 5B are top and side views of a second example slotted plate included in the antenna;
- FIG.6A and 6B are top and sectional views of a third example of slotted plate included in the antenna. Referring to Figs.1, 2A, 2B and 3, there is described the steps of manufacturing a particular embodiment of a slot antenna in a printed circuit board according to the invention.
- Fig.1 there is shown a printed circuit board 1 of the multilayer type 5 in which the slot antenna must be integrated.
- the printed circuit board 1 comprises a plurality of conductive copper layers 10 and dielectric layers 11. Conductive connection patterns are formed in the conductive layers 10. as well as vias 12 for interconnecting conductive patterns in different layers. Active and passive electronic components of the circuit, such as the electronic component 13, are buried between internal layers of the card 1 during the production thereof.
- CCL Copper Clad Laminate
- prepeg thin sheets or plates of copper optionally with a resin coating
- RCC type Resin Coated Copper
- a combination of techniques including laminating, photolithography, wet etching, electroplating, milling and mechanical or laser drilling and other techniques.
- ZA zone shown in Fig.1, is the area of the card 1 in which must be implanted slot antenna.
- an electronic component 13 which, in this embodiment, is an RF transistor for emitting electromagnetic waves.
- the objective here is to make a radio transmitter by associating a slot antenna with the transistor 13.
- the realization of a radio receiver in the card 1 will be made in a similar manner.
- the transistor 13 is buried between internal layers 10, 1 1 of the card 1.
- the transistor 13 comprises electrodes, not visible in FIG. 1, which are soldered to a copper connection pattern of the card 1.
- a conductor C10 consisting of a thick layer of copper, is provided for the cooling of the transistor 13.
- This conductor C10 has the function of extracting the calories produced by the transistor 13 to a heat sink (not shown).
- Vias 12 are made here to connect a metal face of the transistor 13 to the conductor C10.
- the C10 driver will be needed, or not, depending on the power of the radio transmitter. When the C10 conductor is needed, it will be sized according to the heat output to be evacuated. The C10 driver will be more rarely needed in the case of a radio receiver.
- an antenna cavity 15, shown in FIG. 2A is integrated in the thickness of the card 1.
- an indexing pattern, identified 14 in FIG. 1 has been made on the upper face of the card 1 so as to allow indexing of the material removal tool which is used to dig the cavity 15.
- the material is removed above the transistor 13 to clear the desired volume for the cavity 15. This removal of material is typically performed by milling, laser and / or techniques. chemical photogravure allowing precise cutting of the metal layers.
- the dimensions of the cavity 15 are determined in a conventional manner as a function of the wavelength of the carrier.
- the walls of the cavity 15 are then coated with a metallization layer 16, typically copper, so as to form a waveguide.
- the metallization layer 16 is performed here by electrolytic deposition.
- a printed circuit board 1 ' is formed by laminating a plurality of printed circuit boards.
- the printed circuit boards are three in number, namely, P1, P2 and P3.
- Each of the plates P1, P2 and P3 is formed with the techniques of manufacturing multilayer printed circuit boards.
- M1, M2 material withdrawals are made here in the plates P2, P3, so as to release a total volume corresponding to the desired volume for the cavity 15 '.
- These material withdrawals M1, M2, are carried out in a similar manner to that carried out for the cavity 15, that is to say, to the milling cutter, the laser and / or by chemical photogravure techniques.
- the plates P1, P2 and P3 are then laminated by pressing and vacuum laminating oven, after being coated on their laminating surfaces, for example, an epoxy type polymerizable resin to ensure their sizing.
- the multilayer printed circuit board 1 'with the cavity 15' As for the cavity 15 of the card 1, the walls of the cavity 15 'are then coated with a metallization layer, typically copper, so as to form a waveguide.
- the card 1 ' is in the state of the card 1 shown in Fig.2A.
- the following description continues in considering the printed circuit board 1 at the stage of embodiment of Fig.2A.
- the realization of the antenna is completed by the establishment of a plate 17 for closing the upper part of the cavity 15.
- the plate 17 is typically a printed circuit board in which a plurality of slots S17 which are visible in Fig.2A. Slots S17 form openings in the metal layer of the printed circuit board.
- a shoulder 18 is provided at the top of the walls of the cavity 15.
- the shoulder 18 ensures precise positioning of the plate 17 in the opening of the cavity 15. Precise positioning is necessary for compliance with the dimensional definition of the antenna.
- the plate 17 is fixed by gluing in the opening of the cavity 15.
- the antenna AT according to the invention is shown in its completed state in Fig.3. As shown in FIG. 3, the antenna AT is fully integrated into the printed circuit board 1.
- FIG.4A, 4B, 5A, 5B and 6A, 6B Various embodiments of the slotted plate are shown in Figs.4A, 4B, 5A, 5B and 6A, 6B.
- FIGS 4A, 4B, and 5A, 5B respectively show first and second embodiments 17a and 17b of the slotted plate.
- the slotted plates 17a and 17b are similar, except that the plate 17a closes the cavity 15 of the antenna AT with its coppered face CP disposed outside the cavity 15 and the plate 17b closes the cavity 15 of the the antenna AT with its coppered face CP disposed inside the cavity 15.
- the slotted plate 17a, 17b is obtained for example from a thin plate of CCL laminate, or a RCC plate, comprising a dielectric layer DF and a copper layer CF.
- the slot pattern shown in Fig.4A is achieved by conventional photolithography and etching techniques. Slots S17 are obtained by removing the copper. Slots S17 retain the dielectric layer.
- Figures 6A, 6B show a third embodiment 17c of the slotted plate.
- the slotted plate 17c is here obtained from a thin plate of copper.
- the slot pattern is made for example by chemical photogravure.
- antennas according to the invention may be combined in a network and made on the same printed circuit board. It will thus be possible to obtain the desired lobe shapes.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Power Engineering (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Structure Of Printed Boards (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1750851A FR3062525B1 (fr) | 2017-02-01 | 2017-02-01 | Antenne a fentes integree dans une carte de circuit imprime et procede de fabrication de celle-ci |
PCT/FR2018/050195 WO2018142051A1 (fr) | 2017-02-01 | 2018-01-29 | Carte électronique à circuit imprimé comprenant une antenne à fentes intégrée et procédé de fabrication de celle-ci |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3577722A1 true EP3577722A1 (fr) | 2019-12-11 |
Family
ID=59152992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18705686.6A Withdrawn EP3577722A1 (fr) | 2017-02-01 | 2018-01-29 | Carte électronique à circuit imprimé comprenant une antenne à fentes intégrée et procédé de fabrication de celle-ci |
Country Status (7)
Country | Link |
---|---|
US (1) | US11177139B2 (fr) |
EP (1) | EP3577722A1 (fr) |
JP (1) | JP2020506618A (fr) |
KR (1) | KR20190139836A (fr) |
CN (1) | CN110268582A (fr) |
FR (1) | FR3062525B1 (fr) |
WO (1) | WO2018142051A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220061572A (ko) * | 2020-11-06 | 2022-05-13 | 삼성전자주식회사 | 안테나를 포함하는 전자 장치 |
US11889666B2 (en) | 2021-11-03 | 2024-01-30 | Toyota Motor Engineering & Manufacturing North America, Inc. | Power device assemblies having embedded PCBs and methods of fabricating the same |
KR102640270B1 (ko) | 2023-12-07 | 2024-02-27 | 주식회사 월드씨엔에스 | 개선된 방열 성능을 지닌 led 조명 장치 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6049311A (en) * | 1999-03-05 | 2000-04-11 | The Whitaker Corporation | Planar flat plate scanning antenna |
JP4022052B2 (ja) * | 2001-07-18 | 2007-12-12 | 日本放送協会 | アクティブフェーズドアレーアンテナ及びそれを用いた送信装置 |
US6778144B2 (en) * | 2002-07-02 | 2004-08-17 | Raytheon Company | Antenna |
FR2901062B1 (fr) * | 2006-05-12 | 2008-07-04 | Alcatel Sa | Dispositif rayonnant a cavite(s) resonnante(s) a air a fort rendement de surface, pour une antenne reseau |
US7518229B2 (en) * | 2006-08-03 | 2009-04-14 | International Business Machines Corporation | Versatile Si-based packaging with integrated passive components for mmWave applications |
EP2034429A1 (fr) * | 2007-09-05 | 2009-03-11 | Assa Abloy AB | Procédé de fabrication d'une carte et carte obtenue selon ledit procédé |
JP5432918B2 (ja) * | 2008-10-31 | 2014-03-05 | 太陽誘電株式会社 | プリント配線版の製造方法 |
US20100238085A1 (en) * | 2009-03-23 | 2010-09-23 | Toyota Motor Engineering & Manufacturing North America, Inc. | Plastic waveguide slot array and method of manufacture |
DE112010003585T5 (de) * | 2009-09-08 | 2012-11-22 | Siklu Communication ltd. | Rfic-schnittstellen und millimeterwellenstrukturen |
FR2959611B1 (fr) * | 2010-04-30 | 2012-06-08 | Thales Sa | Element rayonnant compact a cavites resonantes. |
US8674885B2 (en) * | 2010-08-31 | 2014-03-18 | Siklu Communication ltd. | Systems for interfacing waveguide antenna feeds with printed circuit boards |
US8865525B2 (en) | 2010-11-22 | 2014-10-21 | Bridge Semiconductor Corporation | Method of making cavity substrate with built-in stiffener and cavity substrate manufactured thereby |
US8895380B2 (en) | 2010-11-22 | 2014-11-25 | Bridge Semiconductor Corporation | Method of making semiconductor assembly with built-in stiffener and semiconductor assembly manufactured thereby |
DE102011005145A1 (de) * | 2011-03-04 | 2012-09-06 | Rohde & Schwarz Gmbh & Co. Kg | Leiterplattenanordnung für Millimeterwellen-Scanner |
US9219041B2 (en) * | 2012-03-29 | 2015-12-22 | International Business Machines Corporation | Electronic package for millimeter wave semiconductor dies |
US20140246227A1 (en) * | 2013-03-01 | 2014-09-04 | Bridge Semiconductor Corporation | Method of making cavity substrate with built-in stiffener and cavity substrate manufactured thereby |
WO2014154231A1 (fr) * | 2013-03-24 | 2014-10-02 | Telefonaktiebolaget L M Ericsson (Publ) | Agencement d'antenne siw |
-
2017
- 2017-02-01 FR FR1750851A patent/FR3062525B1/fr active Active
-
2018
- 2018-01-29 JP JP2019541295A patent/JP2020506618A/ja active Pending
- 2018-01-29 CN CN201880009828.XA patent/CN110268582A/zh active Pending
- 2018-01-29 US US16/480,304 patent/US11177139B2/en active Active
- 2018-01-29 EP EP18705686.6A patent/EP3577722A1/fr not_active Withdrawn
- 2018-01-29 KR KR1020197025263A patent/KR20190139836A/ko unknown
- 2018-01-29 WO PCT/FR2018/050195 patent/WO2018142051A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US11177139B2 (en) | 2021-11-16 |
CN110268582A (zh) | 2019-09-20 |
US20190371622A1 (en) | 2019-12-05 |
JP2020506618A (ja) | 2020-02-27 |
WO2018142051A1 (fr) | 2018-08-09 |
FR3062525A1 (fr) | 2018-08-03 |
KR20190139836A (ko) | 2019-12-18 |
FR3062525B1 (fr) | 2020-11-20 |
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