Source: https://patents.google.com/patent/EP1225538B1/en
Timestamp: 2020-02-25 01:44:02
Document Index: 330035689

Matched Legal Cases: ['arts 111', 'art 111', 'art 111', 'art 111', 'art 111', 'arts 111', 'arts 111', 'arts 111', 'arts 111', 'art 111', 'arts 111', 'art 111', 'arts 111', 'in fine']

EP1225538B1 - Noncontact data carrier - Google Patents
Noncontact data carrier Download PDF
EP1225538B1
EP1225538B1 EP20010926129 EP01926129A EP1225538B1 EP 1225538 B1 EP1225538 B1 EP 1225538B1 EP 20010926129 EP20010926129 EP 20010926129 EP 01926129 A EP01926129 A EP 01926129A EP 1225538 B1 EP1225538 B1 EP 1225538B1
EP20010926129
EP1225538A4 (en
EP1225538A1 (en
Takuya Dai Nippon Priting Co. Ltd. HIGUCHI
2000-05-12 Priority to JP2000140672 priority Critical
2000-05-12 Priority to JP2000140672 priority
2001-05-07 Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
2001-05-07 Priority to PCT/JP2001/003815 priority patent/WO2001085469A1/en
2002-07-24 Publication of EP1225538A1 publication Critical patent/EP1225538A1/en
2003-09-10 Publication of EP1225538A4 publication Critical patent/EP1225538A4/en
2006-09-13 Publication of EP1225538B1 publication Critical patent/EP1225538B1/en
A noncontact data carrier (10) comprises a resonance circuit having upper and lower layer patterns (11u, 11d) aligned through a dielectric layer so that the outlines of at least respective antenna coil parts may match each other. The antenna coil parts in the upper layer pattern (11u) and the lower layer pattern (11d) having an antenna coil part (111) of a surrounding linear pattern and capacitor patterns (112, 113) have substantially identical outlines. A shaped part (111p) which has the same outline as that of an on-chip coil of a data carrier chip and where linear patterns are dense is provided at a part of the antenna coil part (111). The data carrier chip is mounted on the shaped part in such a way that a part of the coil shape is aligned. A resonance circuit is formed through capacitive coupling of the capacitor patterns arranged inside and outside the antenna coil without electrically connecting the antennas of the upper and lower patterns to each other at any point.
This sort of non-contact data carrier has memory in which various data can be stored, by which the control of non-contact data carrier can be made by means of non-contact communication with an external reader/writer. Therefore, the non-contact data carrier has been applied for various uses such as automatic sorting of packages with data carrier, control of goods in stock, prevention of theft of goods and others and production- and distribution control.
A conventional example of non-contact data carrier device with on-chip coil is shown in Fig. 9. In the conventional example, the following method for supplying electric power from a booster antenna 51 to a data carrier chip taking the form of an on-chip coil 52 (the area surrounded by a frame shown by the dotted line) is employed: a booster antenna 51 is formed with a densely formed coil portion 51D and the data carrier chip taking the form of on-chip coil 52 is put on the densely formed coil portion 51D. In this case, the on-chip coil is mounted on the densely formed coil portion 51D in such a manner that the shape of on-chip coil accords with the shape of densely formed coil portion, to fabricate a data carrier. However, in this method, the most internal end of densely formed coil portion 51D is connected with the most external end of the first coil a through connection 51J. Therefore, it is needed to connect the most internal end of densely formed coil portion 51D with the connection 51J through a through hole or caulking precisely formed at the center of densely formed coil portion 51 D.
However, the on-chip coil has the small size with sides of about 3 to 5mm, while the densely formed coil portion corresponding to the on-chip coil has also the small size. Accordingly, there is a problem that to form through hole at the center of the densely formed coil portion is the highly precise work, so that the yield of products is decreased because of the difficulty in the location of through hole.
Documents DE 19820234A and FR 2781588A both disclose contactless cards having a relatively large antenna disposed around the periphery of the card. The inner end of this coil is formed as a small coil having a shape corresponding to the coil on a data carrier chip mounted thereon. Through holes are required for connecting the coil ends.
Document JP2000067197A discloses a contactless card with a single layer coil antenna. The outer end of the coil is capacitively connected to a terminal of an integrated circuit mounted at the center of the coil, thereby dispensing with a through hole for this connection.
Accordingly, it is an object of the present invention to provide a data carrier device comprising the structure of antenna in which there is no problem in the location of a through hole in the above-mentioned non-contact data carrier.
In order to the above-mentioned problem, a non-contact data carrier device is provided as defined by claim 1.
Since a data carrier device of the present invention is formed as mentioned hereinabove, the data carrier device including a data carrier module with on-chip coil has having high efficiency of magnetic connection and can be produced with high yield of products.
Fig. 1 is an exploded perspective view of the first mode of the present invention. As shown in Fig.1, a non-contact data carrier device is usually comprised of antenna sheet 11 having an antenna coil parts and capacitor patterns, and upper and lower protective sheets 21, 31 for protecting the antenna sheet. Antenna sheet 11 is made of insulating substrate wherein an upper layer pattern 11u and a lower layer pattern 11d having antenna coil parts 111 and capacitor patterns 112, 113, respectively, are formed on both sides of the antenna sheet to form a LC resonance circuit. Data carrier chip or data carrier module 100 taking the form of on-chip coil is mounted on specified position in antenna coil part 111. Various kinds of information are stored into a memory of the data carrier chip or data carrier module.
Material of a substrate of antenna sheet 11 is selected according to the object of use of data carrier, wherein a sheet of hard poly vinyl chloride, a sheet of polyester (PET), a sheet of polyimide, a sheet of glass epoxy resin and others, which have usually insulation property and act also as dielectric layers, are used as the materials of antenna sheet. The thickness of antenna sheet is 20 to 150 m, preferably of 25 to 100µm. Material composed of the substrate and foil of aluminum, Cu or iron with thickness of 5 to 50µm laminated on both sides of the substrate is used wherein the foil of aluminum, Cu or iron is etched into the desired form to form the antenna coil part and a capacitor pattern.
The same material as material of a substrate of antenna sheet 11 can be applied for protective sheets 21, 31, however low-priced material as paper can be also used. Generally, there are many cases where a data carrier device is used in the production or the process of distribution. Therefore, ornamental element is not much needed for the protective sheets except a case where the data carrier device is used with being carried as commuter pass. Since a data carrier device of small dimensions is desired except a case where the data carrier device is used for the special object, the data carrier device is produced in the size of unit less than 50mm x 50mm under ordinary circumstances.
In the first mode of data carrier device of the present invention, upper layer pattern 11u and lower layer pattern 11 d are put on both sides of the substrate of antenna sheet so that at least the external forms of the respective layer patterns accord with each other seeing in the vertical direction. Accordingly, Fig. 2 shows a state where upper layer pattern 11u and lower layer pattern 11d are juxtaposed on right and left sides with being separated from a state where at least the external forms of the respective layer patterns accord with each other seeing in the vertical direction.
Upper layer pattern 11u and lower layer pattern 11d have antenna coil part 111 and capacitor patterns 112, 113, respectively. The capacitor patterns are comprised of capacitor pattern 112 arranged inside antenna coil part 111 and another capacitor pattern 113 arranged outside antenna coil part 111. The external form of antenna coil parts 111 of the upper and lower patterns are the same or nearly the same, wherein the winding directions of wound lines of the upper and lower layer patterns are opposite to each other in such a manner that if the winding direction of wound line of the upper layer pattern is clockwise, the winding direction of wound line of the lower layer pattern is counterclockwise. This is because winding directions of both the wound lines should be set in such directions that the magnetic flux of the upper layer pattern and the magnetic flux of the lower layer flux does not cancel with each other since the directions of electric currents are opposite to each other in the upper and lower antenna coil parts 111.
Portions of antenna coil parts 111 are provided with portions 111p of densely formed antenna lines with the form according with the external forms of on-chip coil of data carrier chip or data carrier module mounted on the antenna coil part.
In this case, "portions 111p of densely formed antenna lines with the form according with the external forms of on-chip coil of data carrier chip or data carrier module mounted on the antenna coil part" means that the form of portions 111p of densely formed antenna lines accords with at least two or three sides more than a half of sides of the external forms of on-chip coil.
By the way, a rectangle drawn by dotted line designated "F" is the external form of data carrier chip or data carrier module, wherein this external form is expressed slightly larger than the external form of coil itself of chip.
Then, the object of "providing with portions 111p of densely formed antenna lines in portions of antenna coil parts 111" is to increase magnetic flux density in the portions of densely formed antenna lines corresponding to the position of coil of IC chip wherein an end portion of antenna coil part 111 is formed with a portion in which a part of wire pattern is densely formed so as to converge into the shape of "⊐" as shown in Fig. 2.
The form of whole the antenna coil is not limited to a long shape as shown in Fig. 2. Antenna coil may be formed into rectangle or circle. Further, an area for mounting a chip of "portion of dense antenna lines" is not restricted to that with the shape projecting toward the outside of antenna coil. An area for mounting a chip may be formed into that with the shape entering the inside of antenna coil.
Fig. 3 is a view showing an example in which an area for mounting a chip is formed into that with the shape entering the inside of antenna coil, wherein lower layer pattern 11d shown in Fig. 3(A) and upper layer pattern 11u shown in Fig. 3(B) are juxtaposed on left and right sides in the same manner as in Fig. 2.
Fig. 4 is a view for showing the form of antenna of the second mode of the present invention, wherein the figure shows an example in which antenna coil patterns of the upper and lower layers are engaged with each other. A case shown in the figure is an example in which the upper layer pattern 11u shown in Fig. 4(B) is engaged with the lower layer pattern 11d outside the lower layer pattern 11d shown in Fig. 4(A). Fig. 4(c) shows a state where the upper and lower layer patterns are put on both sides of the antenna sheet. In this case, capacitor patterns 112, 113 and areas 111p for mounting a chip in upper layer and lower layer are formed to overlap each other through the antenna sheet in the same manner as a case shown in Fig. 2.
Antenna line of data carrier chip or data carrier module is integrated with high density, wherein width of line and density of lines of antenna coil 102 do not correspond to the "portion 111p of densely formed wire pattern" of a non-contact data carrier device 10. However, providing the external form of the portion of antenna coil part and the external form of coil of the data carrier chip substantially the same contributes to increase the efficiency of magnetic connection between the chip and the portion of densely wire pattern.
The form of portion of antenna coil of data carrier chip or data carrier module 100 is not restricted to rectangle. The form of antenna may be formed into circle or other form, wherein it is needed to set the external form of "the portion of densely formed wire pattern" to semicircle or other shape.
Fig. 5 is a view showing another example of upper layer pattern and lower layer pattern formed on an antenna sheet, wherein upper layer pattern 11u and lower layer pattern 11d are juxtaposed on right and left sides in the same manner as in Fig. 2.
The upper layer pattern and the lower layer pattern shown in Fig. 5 have antenna coil parts 111 and capacitor patterns 112, 113, respectively, in the same manner as in Fig. 2. However, the mode shown in Fig. 5 differs from the mode shown in Fig.2 in the point that the lower layer pattern 11d has capacitor pattern 112 provided inside antenna coil part 111 of the lower layer pattern 11d with nicks 112c in such a manner that the adjustment of wavelength (tuning) is possible.
When the adjustment of capacity is carried out by cutting a continuous part of capacitor pattern between right and left nicks 112c of capacitor pattern 112 from the side of forward edge of capacitor pattern 112, nicks 112c are provided in capacitor pattern 112 in order to facilitate the cutting out a part of capacitor pattern 112 and to use the nicks as a kind of scale of unit amount of adjustment. As a result, the adjustment of capacitor capacity is made in order to obtain a good state of communication by finely adjusting resonance frequency. Nicks 112c may be provided in any of the upper layer pattern and the lower layer pattern. However, it is advantageous to provide nicks on the side of face where the cut takes place. If any of capacitor patterns 112, 113 are cut, capacitor capacity can be reduced. However, cutting of only one capacitor pattern is difficult on the contrary since capacitor patterns are formed on thin layer films. Cutting of continuous part of between right and left nicks is carried out by means of drill or cutter, wherein cutting by laser beam makes possible to cut the continuous part without injuring the outer surface of capacitor pattern.
Further, the mode shown in Fig. 5 is characterized in that circular alignment marks 116 are provided for "the portion of dense antenna lines" on which data carrier chip or data carrier module is mounted. When data carrier chip is mounted on the portion of dense antenna lines, for example, by means of mounting equipment such as flip chip bonder, wherein the chip is held to mounting equipment with locating the chip to the mounting equipment, image processing made by photographing the alignment mark 116 makes possible to mount the chip accurately at the fixed position.
Fig. 6 is a view showing further another example of upper layer pattern 11u and lower layer pattern 11d, wherein the upper layer pattern 11u and lower layer pattern 11d are juxtaposed on right and left sides in the same manner as in Fig. 2.
The mode shown in Fig. 6 has antenna coil parts 111 and capacitor patterns 112, 113 in the same manner as in Fig. 2. However, the mode shown in Fig. 6 differs from the mode shown in Fig. 2 in the point that portion 11p for mounting a chip is formed into quadrangle with four sides as shown in Fig. 7 which is a partially enlarged view.
Fig. 8 is a view showing an example in which portion for mounting a chip is provided inside antenna coil part and the portion for mounting a chip is formed into a quadrangle with four sides, wherein lower layer pattern 11d shown in Fig. 8(A) and upper layer pattern 11u shown in Fig. 8(B) are shown with being juxtaposed on upside and downside.
The non-contact data carrier device comprises resonance circuit formed of antenna coils and capacitors, which sends and receives radio wave with a given frequency. Generally, bands of frequencies of 125kHz (medium wave), 13.56MHz, and 2.45Ghz(micro wave) can be used, wherein it is said that in case of 125kHz, the distance of communication is about 2cm and in case of 13.56MHz, the distance of communication is about 20cm. Actual distance changes greatly depending on the area of antenna and output power of reader/writer. In case of data carrier of with the area of 50mm x 50mm formed of conventional chip for antenna, the distance of communication of 59 to 60cm can be obtained.
An non-contact data carrier device was made experimentally using a substrate composed of polyethylene terephthalate having a thickness of 25µm (Manufactured by TORAY Industries Inc.)and copper foils having a thickness of 30µm laminated on both sides of polyethylene terephthalate.
First, casein resist was applied on both surfaces of copper foils and dried. Then, the casein resists applied on both sides of substrate were exposed through masks with a pattern of antenna coil parts and capacitor patterns with six turns of antenna coil and the total length of pattern L=45mm shown in Fig. 5 disposed on both sides of substrate with precisely locating the positions of both the masks to each other, so that both the patterns were printed on the casein resist. Then, the exposed casein resists were developed to get patterns of resist. Thereafter, copper foils were etched through the patterns of resist by solution of iron (II) chloride so that the resists of area except part corresponding to the antenna coil parts and capacitor patterns was dissolved and removed.
The width of line of wire pattern of antenna coil formed by etching was 80 µm. Data carrier chip taking the form of on-chip coil with the size of 3mm x 3mm was mounted on a part formed into the shape of "⊐" of the antenna coil with precisely locating the position of data carrier chip to the position of the part formed into the shape of "⊐". The chip was secured to the antenna coil by heating the chip while the chip being pressed to the antenna coil through adhesives to harden the adhesives.
Finally, PET films having a thickness of 20µm were laminated on both sides of substrate as the upper and lower protective sheets 21, 31, so that a non-contact data carrier device shown in Fig. 1 was formed.
Reader/writer could receive/send radio wave with frequency of 13.56MHz from/to the formed non-contact data carrier device through the distance of communication of about 3cm even in case of weak output.
Since a non-contact data carrier device of the present invention has an antenna coil having the above-mentioned form of antenna, the technique of connection such as forming a through-hole in fine part can be made unnecessary by changing the mounting part of chip from the form of wound line to the shape of "⊐" thereof.
A non-contact carrier device (10) comprising an upper layer pattern (11u) having a first antenna coil part (111) made of a wire pattern laid spirally and first capacitor patterns (112 113) and a lower layer pattern(11d) having, in the same way, a second antenna coil part (111) made of a wire pattern laid spirally and second capacitor patterns (112, 113), wherein the respective antenna coil parts (111) have at least partially the same external forms, wherein the upper and lower layer patterns (11u, 11d) are disposed on first and second surfaces of a dielectric layer (11), respectively, in such a manner that at least the external forms of the upper and lower layer patterns (11u, 11d) accord with each other so that a resonance circuit is formed, wherein
the windings of each antenna coil part (111) include a portion (111p) which has the shape according with the external form of the coil of a data carrier chip or data carrier module (100) with an on-chip coil and has a densely formed wire pattern (111p), and wherein the data carrier chip or data carrier module (100) is mounted on one of the portions of densely formed wire pattern in such a manner that the data carrier chip or data carrier module (100) partially conforms to the external form of said portions (111p).
A non-contact data carrier device (10) according to claim 1, characterized in that the portion of densely formed wire pattern (111p) is formed into a shape projecting from the rest portion of the external form of the antenna coil parts (111).
A non-contact data carrier device according to one of the claims 1 to 2, characterized in that the portion of densely formed wire pattern (111p) is formed in a shape dented with respect to the rest portion of the external form of the antenna coil parts (111).
A non-contact data carrier device (10) according to one of the claims 1 to 3, characterized in that the portion of densely formed wire pattern (111p) is formed into a square with four sides.
A non-contact data carrier device (10) according to one of the claims 1 to 4, characterized in that two or three sides of the external form of the chip coil of the data carrier chip or the data carrier module (110) are formed so as to accord with the form of the portion of densely formed wire pattern (111p).
A non-contact data carrier device (10) according to one of the claims 1 to 5, characterized in that the upper layer pattern (11u) and the lower layer pattern (11d) are connected with each other in the capacitor pattern provided inside and outside the antenna coil parts (111).
A non-contact data carrier device (10) according to one of the claims 1 to 5, characterized in that the upper layer pattern (11u) and the lower layer pattern (11d) are connected with each other in the capacitor patterns provided outside antenna coil part (111).
A non-contact data carrier device according to one of the claims 1 to 7, characterized in that any of a capacitor pattern (112) provided inside antenna coil part (111) and a capacitor pattern (113) provided outside antenna coil (111) has the form in which the adjustment of wavelength is possible.
A non-contact data carrier device according to one of the claims 1 to 8, characterized in that the respective wire patterns laid spirally of the antenna coil part (111) of the upper and lower patterns are juxtaposed in the vertical direction in such a manner that the wire pattern of upper layer pattern accords with the wire pattern of lower layer pattern when viewed in the vertical direction.
A non-contact data carrier device (10) according to one of the claims 1 to 8, characterized in that the winding direction of the wound wire pattern of the antenna coil part (111) of the upper layer pattern (11u) is reverse to that of the antenna coil part (111) of the lower layer pattern (11d).
A non-contact data carrier device (10) according to one of the claims 1 to 10, characterized in that alignment marks (116) for the location of data carrier chip or data carrier module (110) to the antenna coil part (111) are provided neighbouring a portion of the antenna coil part (111) which partially conforms to the external form of on-chip coil.
EP20010926129 2000-05-12 2001-05-07 Noncontact data carrier Expired - Fee Related EP1225538B1 (en)
JP2000140672 2000-05-12
PCT/JP2001/003815 WO2001085469A1 (en) 2000-05-12 2001-05-07 Noncontact data carrier
EP1225538A1 EP1225538A1 (en) 2002-07-24
EP1225538A4 EP1225538A4 (en) 2003-09-10
EP1225538B1 true EP1225538B1 (en) 2006-09-13
ID=18647924
EP20010926129 Expired - Fee Related EP1225538B1 (en) 2000-05-12 2001-05-07 Noncontact data carrier
US (1) US6600219B2 (en)
EP (1) EP1225538B1 (en)
JP (1) JP4688396B2 (en)
AT (1) AT339740T (en)
DE (1) DE60123004T2 (en)
WO (1) WO2001085469A1 (en)
FR2910152B1 (en) * 2006-12-19 2009-04-03 Oberthur Card Syst Sa Antenna with bridge without via for portable electronic entity
WO2010113539A1 (en) 2009-04-02 2010-10-07 株式会社村田製作所 Circuit board
JPS6359595A (en) 1986-08-30 1988-03-15 Toshiba Corp Mounting method in portable medium
JP3900593B2 (en) * 1997-05-27 2007-04-04 凸版印刷株式会社 IC card and IC module
JPH1131206A (en) 1997-07-10 1999-02-02 Andeikusu:Kk Resonance label and its manufacture
FR2781588B1 (en) * 1998-07-21 2003-04-25 Solaic Sa Contactless card and method for producing such a card
JP2000067197A (en) 1999-07-16 2000-03-03 Sony Corp Ic card
2001-05-07 DE DE2001623004 patent/DE60123004T2/en active Active
2001-05-07 US US10/030,450 patent/US6600219B2/en not_active Expired - Fee Related
2001-05-07 WO PCT/JP2001/003815 patent/WO2001085469A1/en active IP Right Grant
2001-05-07 AT AT01926129T patent/AT339740T/en unknown
2001-05-07 JP JP2001582101A patent/JP4688396B2/en not_active Expired - Fee Related
2001-05-07 EP EP20010926129 patent/EP1225538B1/en not_active Expired - Fee Related
JP4688396B2 (en) 2011-05-25
WO2001085469A1 (en) 2001-11-15
EP1225538A4 (en) 2003-09-10
DE60123004T2 (en) 2006-12-21
US6600219B2 (en) 2003-07-29
DE60123004D1 (en) 2006-10-26
AT339740T (en) 2006-10-15
US20020121685A1 (en) 2002-09-05
EP1225538A1 (en) 2002-07-24
Ref document number: 60123004
Ref document number: 339740