I 1111111111111111 11111 111111111111111 111111111111111 11111 lll111111111111111
`US009843215B2
`
`c12) United States Patent
`Yeom et al.
`
`(IO) Patent No.:
`(45) Date of Patent:
`
`US 9,843,215 B2
`Dec. 12, 2017
`
`(54) WIRELESS CHARGING AND
`COMMUNICATION BOARD AND WIRELESS
`CHARGING AND COMMUNICATION
`DEVICE
`
`(58) Field of Classification Search
`USPC .......................................................... 320/108
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`(71) Applicant: LG INNOTEK CO., LTD., Seoul (KR)
`
`U.S. PATENT DOCUMENTS
`
`(73) Assignee: LG INNOTEK CO., LTD., Seoul (KR)
`
`2015/0123604 Al
`2015/0256023 Al*
`
`5/2015 Lee et al.
`9/2015 Yeom .
`
`H02J 5/005
`320/108
`
`(72)
`
`Inventors: Jai Hoon Yeom, Seoul (KR); Sang
`Won Lee, Seoul (KR); Seok Bae, Seoul
`(KR); So Yeon Kim, Seoul (KR); Jin
`Mi Noh, Seoul (KR); Ji Yeon Song,
`Seoul (KR); Hee Jung Lee, Seoul (KR)
`
`( *) Notice:
`
`Subject to any disclaimer, the term ofthis
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 21 days.
`
`(21) Appl. No.: 14/636,347
`
`(22) Filed:
`
`Mar. 3, 2015
`
`(65)
`
`Prior Publication Data
`
`US 2015/0256023 Al
`
`Sep. 10, 2015
`
`(30)
`
`Foreign Application Priority Data
`
`Mar. 4, 2014
`
`(KR) ........................ 10-2014-0025290
`
`(51)
`
`(52)
`
`(2006.01)
`(2016.01)
`(2016.01)
`(2016.01)
`
`Int. Cl.
`H02J 7100
`H02J 7102
`H02J 5100
`H02J 50/10
`U.S. Cl.
`CPC .............. H02J 71025 (2013.01); H02J 51005
`(2013.01); H02J 710042 (2013.01); H02J
`50/10 (2016.02)
`
`6,331,763 Bl* 12/2001 Thomas ................. H02H 9/042
`320/136
`2006/0266435 Al* 11/2006 Yang ................ G06K 19/07771
`148/105
`
`2011/0210696 Al
`2015/0077296 Al*
`
`Inoue
`9/2011
`3/2015 An ........................... H0lQ 1/22
`343/720
`
`FOREIGN PATENT DOCUMENTS
`
`KR
`
`10-2013-0072181 A
`
`7/2013
`
`OTHER PUBLICATIONS
`
`Extended European Search Report issued in Application No.
`15157518.0 dated Jul. 30, 2015.
`
`* cited by examiner
`Primary Examiner - Samuel Berhanu
`(74) Attorney, Agent, or Firm - KED & Associates, LLP
`ABSTRACT
`(57)
`Provided are a wireless charging and communication board,
`and a wireless charging and communication device, the
`wireless charging and communication board including: a
`soft magnetic layer; a polymeric material layer arranged on
`one surface and the other surface of the soft magnetic layer
`and extending longer than an exposed portion of the soft
`magnetic layer; and a coil pattern arranged on the polymeric
`material layer.
`22 Claims, 6 Drawing Sheets
`
`230
`
`140
`
`Petitioner Samsung and Google
`Ex-1001, 0001
`
`

`

`U.S. Patent
`
`Dec. 12, 2017
`
`Sheet 1 of 6
`
`US 9,843,215 B2
`
`FIG.1
`
`220
`)
`
`311
`
`I
`
`220
`
`400
`
`310
`315
`230
`315
`312
`
`100
`
`' - - - - - - - - - - - - - - - - -~ - - - - - - ' 135 j
`
`I
`120 520
`
`I
`130
`
`600
`
`)
`535
`
`)
`550
`
`FIG. 2
`
`220
`
`220
`
`bOO
`
`310
`315
`230
`315
`312
`135
`
`120
`
`Petitioner Samsung and Google
`Ex-1001, 0002
`
`

`

`U.S. Patent
`
`Dec. 12, 2017
`
`Sheet 2 of 6
`
`US 9,843,215 B2
`
`FIG. 3
`
`315
`
`\ 120
`
`~ ~ 313
`' 312
`
`312
`
`\ 130
`
`FIG.4
`
`220
`
`220
`
`120
`
`130
`
`FIG. 5
`
`311
`j
`
`313 ( / 313
`
`310
`
`220
`I
`
`312
`
`120
`
`313
`
`'
`312
`
`130
`
`-230
`
`310
`230
`312
`135
`
`230
`
`Petitioner Samsung and Google
`Ex-1001, 0003
`
`

`

`U.S. Patent
`
`Dec. 12, 2017
`
`Sheet 3 of 6
`
`US 9,843,215 B2
`
`FIG. 6
`
`115
`
`116
`
`FIG. 7
`
`220
`
`230
`
`Petitioner Samsung and Google
`Ex-1001, 0004
`
`

`

`U.S. Patent
`
`Dec. 12, 2017
`
`Sheet 4 of 6
`
`US 9,843,215 B2
`
`FIG. 8
`
`310,312
`
`311
`
`FIG. 9
`
`220
`
`310
`315
`230
`223
`230
`315
`312
`135
`
`120
`
`220
`
`130
`
`Petitioner Samsung and Google
`Ex-1001, 0005
`
`

`

`U.S. Patent
`
`Dec. 12, 2017
`
`Sheet 5 of 6
`
`US 9,843,215 B2
`
`FIG.10
`
`220
`
`I
`
`313
`
`220
`
`310
`315
`230
`-:-r--:-r--:-r--:-r-,,,---1~223
`230
`315
`-312
`
`\
`130
`
`120
`
`313
`
`FIG. 11
`
`BEFORE TEST FOR
`01:'.:ljl\Oti
`' .....
`·n{ANSMISS!ON
`EffiCl€NCY{%.}
`
`HEOOGNffiON
`DIST ANCE.(mrn}
`
`AFTER TEST FOR
`REUABfUTY
`1l~NSM:SS10N
`HtCt.XlNrr lON
`DiSiANCE{mm}
`EffiCiENCY(%)
`
`69,42
`
`35
`
`$5
`
`Petitioner Samsung and Google
`Ex-1001, 0006
`
`

`

`U.S. Patent
`
`Dec. 12, 2017
`
`Sheet 6 of 6
`
`US 9,843,215 B2
`
`FIG. 12
`
`~70'°!'
`
`0
`
`•
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`>
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`l
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`l
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`ll
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`I
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`69.6
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`)~ ·•·11
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`I 7 I
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`· 1
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`iG9.0
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`::;, 68.S ·+
`z
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`t- $8,0 ~ - - - -~ - - -~ - - -~ - - - -~
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`FIG. 13
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`70.0 ,----,-----.--------,----------,-------,--,
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`0) z
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`Ao··N'N·'·Ec 7 '0"·R eER""'l1'!"'<"
`\
`t::t.rnrn,i
`
`Petitioner Samsung and Google
`Ex-1001, 0007
`
`

`

`US 9,843,215 B2
`
`1
`WIRELESS CHARGING AND
`COMMUNICATION BOARD AND WIRELESS
`CHARGING AND COMMUNICATION
`DEVICE
`
`CROSS-REFERENCE TO RELATED
`APPLICATION
`
`This application claims priority under 35 U.S.C. §119 to
`Korean Application No. 10-2014-0025290, filed on Mar. 4,
`2014, in the Korean Intellectual Property Office, whose
`entire disclosure is hereby incorporated by reference.
`
`BACKGROUND OF THE INVENTION
`
`2
`FIG. 3 is a cross-sectional view ofa wireless charging and
`communication board according to another embodiment of
`the present application;
`FIGS. 4 and 5 are cross-sectional views of a wireless
`5 charging and communication board according to a further
`embodiment of the present application;
`FIG. 6 is a top view illustrating coil patterns according to
`one embodiment of the present application;
`FIG. 7 is a top view illustrating a soft magnetic layer
`10 according to one embodiment of the present application;
`FIG. 8 is a top view illustrating a polymeric material layer
`according to one embodiment of the present application;
`FIGS. 9 and 10 are cross-sectional views of a wireless
`charging and communication board according to yet another
`15 embodiment of the present application;
`FIGS. 11 to 13 are view illustrated for explaining trans(cid:173)
`mission efficiency and a recognition distance of the wireless
`charging and communication board according to one
`embodiment of the present application.
`
`20
`
`DETAILED DESCRIPTION
`
`1. Field
`Embodiments of the present application relate to a wire(cid:173)
`less charging and communication board and a wireless
`charging and communication device.
`2. Background
`As one of radio frequency tag identification (RFID)
`technologies, near field communication (NFC) is a smart
`card type contactless communication technology using a
`frequency band of 13.56 MHz. As a wireless charging 25
`technology, wireless power conversion (WPC) is a contact(cid:173)
`less charging technology for charging a battery using mag(cid:173)
`netic coupling at a short range without electrical contact.
`NFC is a next-generation near field communication tech(cid:173)
`nology which receives attention because NFC enables wire- 30
`less communication between electrical devices at a short
`range with low power and has relatively excellent security
`due to the short communication range and a low price.
`Furthermore, it is advantageous in that NFC has a bidirec-
`tional property and a large storage memory space compared
`to a smart card, and the range of applicable services is wide.
`Also, it is advantageous in that WPC can be applied to
`various fields regarding battery charging because WPC
`enables battery charging via magnetic coupling without 40
`electrical contact.
`An antenna used in the NFC or WPC system includes a
`coil having a fixed area and receives necessary energy for
`the operation of a microchip from a reader. A magnetic field
`is formed by alternating current power energy generated 45
`from a primary coil so that electrical currents passing
`through the coil of the antenna can be abandoned, and a
`voltage is generated by an inductance of the antenna. The
`voltage is used as power for data transmission or is used in
`charging a battery.
`As a smart terminal has widely come into wide use, the
`need of a device capable of providing both the NFC and
`WPC has been increased. Thus, the development of a device
`having high charging efficiency and a sufficient long recog(cid:173)
`nition distance upon data communication has been required. 55
`
`35
`
`Hereinafter, the embodiments of the present application
`that an ordinary person skilled in the art can implement will
`be described with reference to the accompanying drawings.
`The embodiments in the specification and the constructions
`shown in the drawings are provided as a preferred embodi(cid:173)
`ment of the present application, and it should be understood
`that there may be various equivalents and modifications
`which could substitute at the time of filing. In addition, when
`it comes to the operation principle of the preferred embodi(cid:173)
`ments of the present application, when the known functions
`or functions are seemed to make unclear the subject matters
`of the present application, they will be omitted from the
`descriptions of the invention. The terms below are defined in
`consideration of the functions of the present application, and
`the meaning of each term should be interpreted by judging
`the whole parts of the present specification, and the elements
`having the similar functions and operations of the drawings
`are given the same reference numerals. As used herein, the
`singular forms are intended to include the plural forms as
`well, unless the context clearly indicates otherwise.
`FIG.1 is a cross-sectional view ofa wireless charging and
`communication device according to one embodiment of the
`present application.
`A wireless charging and communication device according
`to one embodiment of the present application will be here(cid:173)
`inafter described with reference to FIG. 1.
`The wireless charging and communication device accord-
`50 ing to the present embodiment of the invention may be
`included for wireless power conversion (WPC) and near
`field communication (NFC).
`As illustrated in FIG. 1, the wireless charging and com(cid:173)
`munication device according to the present embodiment of
`the invention may include a receiver 100 and a transmitter
`500.
`The receiver 100 and the transmitter 500 may enable
`wireless power conversion (WPC) and near field communi(cid:173)
`cation (NFC).
`The receiver 100 may include a reception coil pattern 120,
`130, wherein the first reception coil pattern 120 is a coil
`pattern for wireless power conversion (WPC), and the
`second reception coil pattern 130 is a coil pattern for near
`field communication (NFC).
`Also, the transmitter 500 may include a transmission coil
`pattern 520, 530, wherein the first transmission coil pattern
`520 is a coil pattern for wireless power conversion (WPC),
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`The embodiments will be described in detail with refer-
`ence to the following drawings in which like reference 60
`numerals refer to like elements wherein:
`FIG. 1 is a cross-sectional view of a wireless charging and
`communication device according to one embodiment of the
`present application;
`FIG. 2 is a cross-sectional view of a wireless charging and 65
`communication board according to one embodiment of the
`present application;
`
`Petitioner Samsung and Google
`Ex-1001, 0008
`
`

`

`US 9,843,215 B2
`
`10
`
`4
`on the second polymeric material layer 312 corresponding to
`the second soft magnetic layer 230.
`The transmitter 500 may include: a soft magnetic layer
`550; a transmission coil pattern 520, 530 attached to the soft
`5 magnetic layer 550 via an adhesive layer 535; and a housing
`600.
`Accordingly, according to the present embodiment of the
`invention, both the constitution including the first soft mag(cid:173)
`netic layer 220 and the first coil pattern (120) and capable of
`enabling wireless power conversion (WPC) and the consti(cid:173)
`tution including the second soft magnetic layer 230 and the
`second coil pattern 130 and capable of enabling near field
`communication (NFC) may be included, and both the WPC
`and NFC may be provided.
`Meanwhile, in another embodiment, the first transmission
`coil pattern 520 may be composed of a coil pattern for near
`field communication (NFC), and the second transmission
`coil pattern 530 may be composed of a coil pattern for
`20 wireless power conversion (WPC).
`FIG. 2 is a cross-sectional view ofa wireless charging and
`communication board according to one embodiment of the
`present application.
`As illustrated in FIG. 2, a wireless charging and commu-
`25 nication board according to one embodiment of the present
`application may include: a soft magnetic layer 220, 230; a
`polymeric material layer 310 312 arranged on one surface
`and the other surface of the soft magnetic layer 220, 230 and
`extending longer than an exposed portion of the soft mag-
`30 netic layer 220, 230; and a coil pattern 120, 130 arranged on
`the polymeric material layer 310, 312.
`Also, the polymeric material layer 310, 312 may include
`a first polymeric material layer 310 and a second polymeric
`35 material layer 312; the soft magnetic layer 220, 230 may
`include a first soft magnetic layer 220 and a second magnetic
`layer 230; and the coil pattern 120, 130 may include a first
`coil pattern 120 and a second coil pattern 130.
`Also, an extending portion length 1 of a first polymeric
`40 material layer 310 or a second polymeric material layer 312
`and a thickness h of the magnetic soft material layer 220,
`230 may be formed to have a relation of the following
`Equation 1.
`
`3
`and the second transmission coil pattern 530 is a coil pattern
`for near field communication (NFC).
`The first transmission coil pattern 520 is connected to a
`power source (not drawn), and the first reception coil
`patterns 120 is connected to a circuit part (not drawn).
`The power source may be an alternating current power
`source providing an alternating current having a predeter(cid:173)
`mined frequency. An alternating current flows through the
`first transmission coil patterns 520 by power supplied from
`the power source (not drawn).
`When the alternating current flows through the first trans(cid:173)
`mission coil pattern 520, the alternating current is also
`induced to the first reception coil pattern 120 spaced apart
`from the first transmission coil pattern 520 by electromag- 15
`netic induction.
`The current induced to the reception coil pattern 120 is
`transmitted to the separate circuit part (not drawn) and is
`then rectified.
`Meanwhile, the transmitter 500 according to the present
`embodiment of the invention may be composed of a trans(cid:173)
`mission pad, and the receiver 100 may be constituted as an
`element for a portable terminal, a home/personnel electronic
`product, a transportation means and the like to which
`wireless power conversion is applied. The portable terminal,
`the home/personnel electronic product, the transportation
`means and the like to which wireless power conversion is
`applied may include only a wireless power receiver or may
`include both a wireless power transmitter and a wireless
`power receiver.
`That is, the transmitter 500 may serve as a reader, and the
`receiver 100 may serve as a tag.
`The receiver 100 may include a wireless charging and
`communication board and a housing 400 in which the
`wireless charging and communication board is received. The
`housing 400 may radiate heat generated from the coil pattern
`120, 130 to the outside.
`Meanwhile, the wireless charging and communication
`board may include: a soft magnetic layer 220, 230; a
`polymeric material layer 310, 312 disposed on one surface
`and the other surface of the soft magnetic layer 220, 230 and
`extending longer than an exposed portion of the soft mag(cid:173)
`netic layer 220, 230; the coil pattern 120, 130; and a
`processing hole 311 passing through the wireless charging
`and communication board and used in performing aligning. 45
`Also, the polymeric material layer 310, 312 may include
`a first polymeric material layer 310 arranged on one surface
`of the soft magnetic layer 220, 230, and a second polymeric
`material layer 321 arranged on the other surface of the soft
`magnetic layer 220, 230.
`At this time, the polymeric material layer 310,312 may be
`made with a black film. The polymeric material layer 310,
`312 may be adhered to the soft magnetic layer 220, 230 via
`an adhesive layer 315. The polymeric material layer 310,
`312 may contain any one material of polyethylene, poly- 55
`acrylic, polyimide, polyamide, and polyurethane.
`Meanwhile, the soft magnetic layer 220, 230 may be
`configured such that, on the same plane on which the first
`soft magnetic layer 220 and the second soft magnetic layer
`230 are arranged, the second soft magnetic layer 230 is 60
`arranged around the first soft magnetic layer 220, more
`specifically, the second soft magnetic layer 230 is disposed
`to surround the first soft magnetic layer 220.
`Also, the coil pattern 120, 130 may include the first coil
`pattern 120 arranged in a region on the second polymeric 65
`material layer 312 corresponding to the first soft magnetic
`layer 220, and second coil pattern 130 arranged in a region
`
`[Equation 1]
`
`At this time, 1 represents an extending portion length of
`the first polymeric material layer 310 or the second poly(cid:173)
`meric material layer 312, h represents a thickness of the soft
`magnetic layer 220, 230, and A represents a constant of 0.6
`50 to 10. When the value of A is less than 0.6, the polymeric
`material layer 310, 312 may not sufficiently surround the
`soft magnetic layer 220, 230, so that moisture can penetrate.
`When the value of A is more than 10, the polymeric material
`layer 310, 312 may excessively extend so that the polymeric
`material layer can be easily bent and damaged by an external
`impact, or a thickness can be increased because a separate
`receiving part should be added.
`Also, the first soft magnetic layer 220 and the second soft
`magnetic layer 230 may be made of different materials. For
`example, the first soft magnetic layer 220 may be made with
`an amorphous ribbon, and the second soft magnetic layer
`230 may be made of any one material of a composite, a
`ferrite, a Ni-Zn material, and a Mn-Zn material.
`When the first soft magnetic layer 220 is made with an
`amorphous ribbon, high permeability can be implemented in
`an operating frequency of 100 to 200 kHZ. When the second
`soft magnetic layer 230 is made of any one material of a
`
`Petitioner Samsung and Google
`Ex-1001, 0009
`
`

`

`US 9,843,215 B2
`
`5
`composite, a ferrite, a Ni-Zn material, and a Mn-Zn
`material, data loss generated during communication can be
`reduced.
`When the soft magnetic layer 120 is made of a ferrite
`material, the soft magnetic layer may be implemented in
`various forms such as a pellet form, a plate form, a ribbon
`form, a foil form, a film form and the like. Also, the soft
`magnetic layer 120 may contain at least one of Fe, Ni, Co,
`Mn, Al, Zn, Cu, Ba, Ti, Sn, Sr, P, B, N, C, W, Cr, Bi, Li, Y
`and Cd.
`The coil pattern 120, 130 may include the first coil pattern
`120 arranged in a region on the polymeric material layer 310
`corresponding to the first soft magnetic layer 220, and the
`second coil pattern 130 arranged in a region on the poly(cid:173)
`meric material layer 310 corresponding to the second soft
`magnetic layer 230.
`At this time, as illustrated in FIG. 2, the coil pattern 120,
`130 may be adhered to the polymeric material layer 310 via
`an adhesive layer 135.
`FIG. 3 is a cross-sectional view of a wireless charging and
`communication board according to another embodiment of
`the present application.
`As illustrated in FIG. 3, a wireless charging and commu(cid:173)
`nication board according to the present embodiment of the 25
`invention includes: a soft magnetic layer 220, 230; a poly(cid:173)
`meric material layer 310, 312 arranged on one surface and
`the other surface of the soft magnetic layer 220, 230, and
`extending longer than an exposed portion of the soft mag(cid:173)
`netic layer 220, 230; and a coil pattern 120, 130 arranged on 30
`the polymeric material layer 310, 312.
`However, in the embodiment of FIG. 3, the wireless
`charging and communication board further includes a poly(cid:173)
`meric material connector 313 intended for connecting the
`first polymeric material layer 310 and the second polymeric 35
`material layer 312 and surrounding the exposed portion of
`the soft magnetic layer 220. In this specification, a term of
`the polymeric material connector 313 can be used with a
`term of the extending portion. That is, a first extending
`portion may be extended in the first polymeric material layer 40
`310, and a second extending portion may be extended in die
`second polymeric material layer 312.
`Accordingly, in the embodiment of FIG. 3, the exposed
`portion may refer to an end exposed by a processing hole
`311, and the polymeric material connector 313 surrounding 45
`the exposed portion of the soft magnetic layer 220 may
`prevent water penetration from the outside.
`FIGS. 4 and 5 are cross-sectional views of a wireless
`charging and communication board according to a further
`embodiment of the present application.
`According to the embodiment of FIGS. 4 and 5, the
`polymeric material layer 310,312 may be directly formed on
`the soft magnetic layer 220, 230 without forming an adhe(cid:173)
`sive layer 315 for adhering the polymeric material layer 310,
`312 to the soft magnetic layer 220, 230.
`At this time, the polymeric material layer 310,312 may be
`directly formed on the soft magnetic layer 220, 230 via
`thermal compression bonding.
`Like the embodiment of FIGS. 4 and 5, when the poly(cid:173)
`meric material layer 310, 312 is directly formed on the soft 60
`magnetic layer 220, 230, there is no need to use an adhesive
`layer so that a process can be simplified, a production cost
`can be reduced, and the wireless charging and communica(cid:173)
`tion board can be more thinly produced.
`Meanwhile, in the embodiments of FIGS. 2 to 6, a cross 65
`section of the processing hole of the wireless charging and
`communication board has been explained as an example, but
`
`6
`the exposed portion of an end for connecting the lead frame
`may be also identically configured.
`FIG. 6 is a top view illustrating coil patterns according to
`one embodiment of the present application, more specifi-
`5 cally, a view illustrating wireless charging and communica(cid:173)
`tion board included in a receiver according to one embodi(cid:173)
`ment of the present application.
`FIG. 7 is a top view illustrating a soft magnetic layer
`according to one embodiment of the present application and
`10 FIG. 8 is a top view illustrating a polymeric material layer
`according to one embodiment of the present application.
`The coil pattern 120, 130 may be adhered to the polymeric
`material layer 310 via the adhesive layer 135 as shown in
`FIG. 2, or may be disposed on a separate substrate 110 as
`15 shown in FIG. 6.
`As illustrated in FIG. 6, align marks 115, 116 for enabling
`aligning upon the wireless charging and communication
`board may be formed on the substrate 110.
`Also, as illustrated in FIGS. 7 and 8, the wireless charging
`20 and communication board may further include a lead frame
`140 connected to the coil pattern 120, 130, and the second
`soft magnetic layer 230 may be disposed to surround the
`lead frame 140.
`More specifically, as shown in FIG. 4, the second soft
`magnetic layer 230 may be disposed to surround the lead
`frame 140 at a regular interval of 1 to 3 mm. As such, when
`the second soft magnetic layer 230 is disposed to surround
`the lead frame 140 at the regular interval, even though the
`lead frame 140 is disposed, the problem of a reduction in
`transmission efficiency upon charging or a reduction in a
`recognition distance upon data communication can be pre-
`vented.
`Also, in the exposed portion of an end for connecting the
`lead frame 140, the polymeric material layer 310, 312
`extending longer than the soft magnetic layer 220, 230 may
`be formed as shown in FIG. 2, or the polymeric material
`connector 313 surrounding an end of the polymeric material
`layer 310, 312 may be formed as shown in FIG. 3.
`The polymeric material layer 310,312 of FIG. 8 may be
`disposed on one surface and the other surface of the first and
`second soft magnetic layers 220, 230. The polymeric mate(cid:173)
`rial layer 310, 312 may be disposed to be adhered to the first
`and second magnetic layer 220, 230 via the adhesive layer
`315.
`Also, the processing hole 311 may be formed in the
`polymeric material layer 310, 312 and the soft magnetic
`layer 220.
`The processing hole 311 may perform aligning with the
`align marks 115, 116 of FIG. 6 upon manufacturing the
`50 wireless charging and communication board.
`FIGS. 9 and 10 are cross-sectional views of a wireless
`charging and communication board according to yet another
`embodiment of the present application.
`The wireless charging and communication board accord-
`55 ing to the present embodiment of the invention of FIGS. 9
`and 10 may be configured such that the soft magnetic layer
`220, 230 is adhered onto one surface and the other surface
`of the adhesive layer 223, respectively.
`According to the embodiment of the invention of FIGS. 9
`and 10, the soft magnetic layer 220, 230 may be added in
`plural numbers so that transmission efficiency upon charging
`can be adjusted or improved, a recognition distance upon
`data communication can be adjusted.
`FIGS. 11 to 13 are view illustrated for explaining trans(cid:173)
`mission efficiency and a recognition distance of the wireless
`charging and communication board according to one
`embodiment of the present application.
`
`Petitioner Samsung and Google
`Ex-1001, 0010
`
`

`

`US 9,843,215 B2
`
`10
`
`7
`More specifically, FIG. 11 is a table showing the com(cid:173)
`parison of charges in transmission efficiency and a recog(cid:173)
`nition distance according to a conventional art and the
`embodiment of the present application, FIG. 12 is a graph
`illustrating a charge in transmission efficiency resulting from 5
`a change in a diameter of the processing hole according to
`the embodiment of the present application, and FIG. 13 is a
`graph illustrating a change in transmission efficiency result(cid:173)
`ing from a distance of the soft magnetic layers according to
`the embodiment of the present application.
`According to the present embodiment of the invention, as
`illustrated in FIG. 11, comparing embodiment A in which the
`second soft magnetic layer does not surround around the
`lead frame, and a processing hole is not formed, and 15
`embodiment B in which the second soft magnetic layer
`surrounds around the lead frame, and the processing hole is
`formed, there is a slight difference in transmission efficiency
`and there is no difference in a recognition distance.
`Also, as illustrated in FIG. 12, when a diameter of the 20
`processing hole is changed to the range of 1 to 3 mm, the
`effect of an increase in transmission efficiency is generated.
`As illustrated in FIG. 13, when the soft magnetic layer (the
`second soft magnetic layer) surrounds around the lead
`frame, transmission efficiency is slight reduced, so there is 25
`no large difference in transmission efficiency.
`As set forth above, according to some embodiments of the
`present application, the wireless charging and communica(cid:173)
`tion board may enable both the wireless power conversion
`(WPC) and near field communication (NFC).
`According to some embodiments of the present applica(cid:173)
`tion, the a portion of the soft magnetic layer exposed to the
`atmosphere is minimized so that the inflow of a foreign
`substance to the outside can be minimized, and the soft
`magnetic layer is disposed to surround the lead frame at a 35
`regular interval so that the problems of a reduction in
`transmission efficiency upon charging and a reduction in a
`recognition distance upon data communication can be over(cid:173)
`come even though the lead frame is disposed.
`Furthermore, according to some embodiments of the 40
`present application, the soft magnetic layer is added so that
`transmission efficiency upon charging can be adjusted or
`improved, and a recognition distance upon data communi(cid:173)
`cation can be adjusted.
`An aspect of embodiments of the present application 45
`provides a wireless charging and communication board that
`enables wireless power conversion (WPC) and near field
`communication (NFC).
`Also, another aspect of embodiments of the present appli(cid:173)
`cation provides a wireless charging and communication 50
`board which is configured such that a portion of a soft
`magnetic layer exposed to the atmosphere is minimized so
`that the inflow of a foreign substance to the outside can be
`minimized, and the soft magnetic layer is disposed to
`surround a lead frame at a regular interval so that the 55
`problems of a reduction in transmission efficiency upon
`charging and a reduction in a recognition distance upon data
`communication can be overcome even though the lead frame
`is disposed.
`Also, a further aspect of embodiments of the present 60
`application provides a wireless charging and communication
`board to which a soft magnetic layer is added so that
`transmission efficiency upon charging can be adjusted or
`improved, and a recognition distance upon data communi(cid:173)
`cation can be adjusted, and a wireless charging and com- 65
`munication device including the wireless charging and com(cid:173)
`munication board.
`
`8
`According to an aspect of embodiments of the present
`invention, a wireless charging and communication board
`may include: a plurality of soft magnetic layers; a first
`polymeric material layer arranged on one surface of the
`plurality of the soft magnetic layers; a second polymeric
`material layer arranged on the other surface opposed to the
`one surface; and a coil pattern arranged on the second
`polymeric material layer, wherein the plurality of soft mag(cid:173)
`netic layers are disposed between the first polymeric mate(cid:173)
`rial layer and the second polymeric material layer, wherein
`the first polymeric material layer comprises a first extending
`portion extending longer than the plurality of the soft
`magnetic layers; wherein the second polymeric material
`layer comprises a second extending portion extending longer
`than the plurality of the soft magnetic layers, and wherein
`the first extending portion and the second extending portion
`contact with each other. The first polymeric material layer
`and the first extending portion are made of same material.
`A distance between the first extending portion and the
`second extending portion may become closer as the plurality
`of the soft magnetic layers becomes farther.
`A length (I) of the first extending portion or the second
`extending portion and a thickness (h) of the plurality of the
`soft magnetic layers may have a relation of the following
`equation, wherein A represents a constant of 0.6 to 10.
`
`[equation]
`
`Any one of the first polymeric material layer and the
`second polymeric material layer may contain any one mate-
`30 rial of polyethylene, polyacrylic, polyimide, polyamide, and
`polyurethane.
`The wireless charging and communication board may
`further include an adhesive layer intended for adhering the
`first polymeric material layer and the second polymeric
`material layer to the plurality of the soft magnetic layers.
`An air gap may be further formed between the plurality of
`the soft magnetic layers, the first extending portion and the
`second extending portion.
`The plurality of the soft magnetic layer may include: a
`first soft magnetic layer; and a second soft magnetic layer
`arranged on the first soft magnetic layer.
`The first soft magnetic layer and the second soft magnetic
`layer may be made of different materials.
`The coil pattern may include: a first coil pattern arranged
`in a region on the polymeric material layer corresponding to
`the first soft magnetic layer; and a second coil pattern
`arranged in a region on the polymeric material layer corre(cid:173)
`sponding to the second soft magnetic layer;
`The wireless charging and communication board may
`further include a lead frame connected to the coil pattern.
`The first pol