KR20220106800A - contactless communication medium - Google Patents

Abstract

The non-contact communication media 1, 1A to 1K according to the present disclosure include an electronic component 10 and receptors 20, 20A to 20H. The electronic component 10 performs contactless communication. The receptor 20 includes a first substrate 21, 21C, 21F, 21G, 21H, 21K, and a second substrate 22, 22A, 22B, in which the opposing flat surfaces are bonded to each other through the adhesive layers 23, 23J, 23K; 22D, 22E, 22K, the electronic component 10 is accommodated in the accommodation recessed part 25 provided in one flat surface, and the accommodation recessed part is blocked|occluded by the other flat surface. Further, the first substrate has convex portions 26, 26A, 26C, 26E, and 26G that protrude circumferentially so as to surround the receiving concave portion from the flat surface of the first substrate.

Description

contactless communication medium

The present disclosure relates to contactless communication media.

Conventionally, article management using an RFID (Radio Frequency Identifier) tag is performed.

Patent Document 1 discloses a technique for sealing the RFID tag with a container having heat insulating properties in order to use the RFID tag for the management of parts processed at high temperatures in a factory or the like. The container described in patent document 1 has a container which accommodates an RFID tag, and the lid joined to this container. The RFID tag sealed in the receptor flows through the manufacturing process with the part.

Japanese Patent Laid-Open No. 2008-129838

A non-contact communication medium according to one embodiment of the present disclosure includes an electronic component and a container. Electronic components perform contactless communication. The container has a first base material and a second base material in which opposing flat surfaces are joined through an adhesive layer, an electronic component is accommodated in an accommodation recess formed on one flat surface, and the accommodation recess is closed by the other flat surface. . Further, the first substrate has a convex portion protruding from the flat surface of the first substrate in a circumferential shape to surround the receiving concave portion.

1 is a side view of a contactless communication medium according to an embodiment;
2 is a plan view of a contactless communication medium according to an embodiment.
FIG. 3 is a cross-sectional view when viewed from the line III-III shown in FIG. 2 .
4 is a plan view of the first substrate.
FIG. 5 is an enlarged view of part H shown in FIG. 3 .
6 is an enlarged cross-sectional view of a contactless communication medium according to a first modification.
Fig. 7 is an enlarged cross-sectional view of a non-contact communication medium according to a second modification.
Fig. 8 is an enlarged cross-sectional view of a non-contact communication medium according to a third modification.
Fig. 9 is an enlarged cross-sectional view of a non-contact communication medium according to a fourth modification.
Fig. 10 is an enlarged cross-sectional view of a contactless communication medium according to a fifth modification.
11 is an enlarged cross-sectional view of a non-contact communication medium according to a sixth modification.
12 is an enlarged cross-sectional view of a non-contact communication medium according to a seventh modification.
Fig. 13 is an enlarged cross-sectional view of a non-contact communication medium according to an eighth modification.
Fig. 14 is an enlarged cross-sectional view of a non-contact communication medium according to a ninth modification.
Fig. 15 is an enlarged cross-sectional view of a non-contact communication medium according to a tenth modification.
16 is a side view of a contactless communication medium according to an eleventh modification.
17 is a plan view of a contactless communication medium according to an eleventh modification.
Fig. 18 is a cross-sectional view when viewed from the line XVIII-XVIII line shown in Fig. 17;
19 is an enlarged cross-sectional view of a non-contact communication medium according to a twelfth modification.
20 is an enlarged cross-sectional view of a non-contact communication medium according to a thirteenth modification.
Fig. 21 is an enlarged cross-sectional view of a non-contact communication medium according to a fourteenth modification.
22 is an enlarged cross-sectional view of a contactless communication medium according to a fifteenth modification.
23 is an enlarged cross-sectional view of a non-contact communication medium according to a sixteenth modification.
Fig. 24 is an enlarged cross-sectional view of a non-contact communication medium according to a seventeenth modification.
25 is an enlarged cross-sectional view of a non-contact communication medium according to an eighteenth modification.
26 is an enlarged cross-sectional view of a non-contact communication medium according to a nineteenth modification.
Fig. 27 is a cross-sectional view when viewed from the line XXVII-XXVII shown in Fig. 26;
Fig. 28 is an enlarged cross-sectional view of a non-contact communication medium according to a twentieth modification.
29 is an enlarged cross-sectional view of a non-contact communication medium according to a twenty-first modification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A form (hereinafter, referred to as an "embodiment") for implementing the non-contact communication medium according to the present disclosure will be described in detail with reference to the drawings. In addition, the contactless communication medium by this indication is not limited by this embodiment. In addition, each embodiment can be combined suitably in the range which does not contradict the processing content. In addition, in each following embodiment, the same code|symbol is attached|subjected to the same site|part, and overlapping description is abbreviate|omitted.

In addition, although expressions such as "constant", "orthogonal", "vertical" or "parallel" are sometimes used in the embodiments shown below, these expressions are strictly "constant", "orthogonal", "vertical" or It does not need to be "parallel". That is, it is assumed that each of the above expressions permits deviations in manufacturing precision, installation precision, and the like, for example.

In addition, in each drawing referenced below, in order to make the explanation easy to understand, the X-axis direction, the Y-axis direction, and the Z-axis direction orthogonal to each other are defined, and the Cartesian coordinate system in which the positive Z-axis direction is the vertically upward direction is sometimes indicated. .

<Configuration of contactless communication medium>

A configuration of a non-contact communication medium according to an embodiment will be described with reference to FIGS. 1 to 4 . 1 is a side view of a contactless communication medium according to an embodiment; 2 is a plan view of a contactless communication medium according to an embodiment. 3 is a cross-sectional view when viewed from the line III-III shown in FIG. 2 . In addition, FIG. 4 is a top view of a 1st base material.

1 to 3 , the non-contact communication medium 1 according to the embodiment includes an electronic component 10 and a container 20 . The electronic component 10 is, for example, an RFID tag.

The electronic component 10 as RFID includes, for example, an antenna for non-contact communication on a substrate made of LTCC (Low Temperature Co-fired Ceramics) or the like, an IC chip for performing non-contact communication through the antenna, and identification information stored therein. have memory The electronic component 10 as RFID can transmit the identification information stored in the memory to an external device (eg, RFID reader) by non-contact communication using electromagnetic induction, radio waves, or the like.

The non-contact communication medium 1 according to the embodiment may be used, for example, in a high-temperature environment exceeding the heat-resistant temperature of the electronic component 10 . For example, the non-contact communication medium 1 according to the embodiment is attached to a part to be plated, and is plated together with the part. The temperature of a plating solution, such as hot-dip galvanizing, is 75 degreeC - 500 degreeC, for example. Further, the non-contact communication medium 1 according to the embodiment may be treated with an acidic chemical or an alkaline chemical together with components. That is, the non-contact communication medium 1 according to the embodiment may be used in an acid/alkali environment exceeding the chemical resistance of the electronic component 10 in some cases.

Then, in the non-contact communication medium 1 by embodiment, in order to protect the electronic component 10 from a high temperature environment and an acid/alkali environment, it was decided that the electronic component 10 was sealed with the container 20. As shown in FIG.

On the other hand, if the container containing the electronic component is simply sealed with a lid, for example, during the manufacturing process, a liquid such as a plating solution or a gas such as a corrosive gas enters from the joint between the container and the lid, and the inside There is a risk of damaging the RFID tag. In view of this point, the non-contact communication medium 1 according to the embodiment has a structure for suppressing intrusion of an external liquid or gas from the joint portion of the container 20 .

The container 20 has a first base material 21 and a second base material 22 made of ceramics, and an adhesive layer 23 . The first substrate 21 and the second substrate 22 are bonded to each other through the adhesive layer 23 . Specifically, the first substrate 21 and the second substrate 22 have flat surfaces 21a and 22a of substantially the same diameter that are opposed to each other. Flat surfaces 21a and 22a of the first substrate 21 and the second substrate 22 are bonded through an adhesive layer 23 . Hereinafter, the flat surface 21a of the 1st base material 21 is described as a "first flat surface 21a", and the flat surface 22a of the 2nd base material 22 is referred to as a "second flat surface 22a". ' is written.

The first substrate 21 has a receiving recess 25 for receiving the electronic component 10 . The receiving concave portion 25 is opened in the central portion of the first flat surface 21a. The first flat surface 21a is closed by the second flat surface 22a of the second substrate 22 . Thereby, the electronic component 10 is sealed inside the container 20. As shown in FIG.

As ceramics constituting the first substrate 21 and the second substrate 22, for example, cozelite can be used. Kozelite has excellent thermal shock resistance from a small thermal expansion coefficient. In addition, since cozelite has low thermal conductivity, it is difficult to transfer heat to the electronic component 10 . In this way, the electronic component 10 can be properly protected from a high-temperature environment by using the cozelite. In addition, the ceramics which comprise the 1st base material 21 and the 2nd base material 22 do not necessarily need to be cozelite. This point will be described later.

The adhesive layer 23 is made of an adhesive. The adhesive should just have heat resistance that can withstand the use environment of the non-contact communication medium 1 . As such an adhesive, an inorganic adhesive can be used, for example. Moreover, as an adhesive agent, you may use what added ceramic powder to the inorganic adhesive agent.

Both the 1st base material 21 and the 2nd base material 22 have a cylindrical shape. Specifically, the first substrate 21 and the second substrate 22 have flat surfaces (top and bottom surfaces) that are circular in plan view at both ends, and a curved surface connecting the top and bottom surfaces ( outer perimeter). The adhesive layer 23 is positioned between the first flat surface 21a that is the upper end surface of the first substrate 21 and the second flat surface 22a that is the lower end surface of the second substrate 22 . The 1st base material 21 and the 2nd base material 22 joined by the adhesive layer 23 have a cylindrical shape (so-called coin shape) as a whole.

The accommodation recessed part 25 is located in the 1st flat surface 21a of the 1st base material 21. As shown in FIG. The electronic component 10 is accommodated in this receiving recess 25 . The size of the accommodation recessed part 25 is not specifically limited, What is necessary is just a thing larger than the electronic component 10 at least. In addition, the inside of the accommodation recessed part 25 is a space, and a filler etc. are not located.

As shown in FIG. 3, the convex part 26 is further located in the 1st flat surface 21a of the 1st base material 21. As shown in FIG. As shown in FIG. 4, the convex part 26 protrudes in the circumferential shape so that the accommodation recessed part 25 may be enclosed from the 1st flat surface 21a.

As described above, in the non-contact communication medium 1 according to the embodiment, the periphery of the accommodation concave portion 25 is surrounded by the convex portion 26 .

A liquid such as a plating solution or a gas such as a corrosive gas is received from the interface between the first substrate 21 or the second substrate 22 and the adhesive layer 23 along the first flat surface 21a or the second flat surface 22a. (20) break into the interior. Since the non-contact communication medium 1 according to the embodiment has the convex portion 26 in the middle of such an intrusion path, the intruding liquid or gas can be blocked from the front of the accommodation concave portion 25 .

Therefore, according to the non-contact communication medium 1 according to the embodiment, it is possible to suppress intrusion of an external liquid or gas from the joint portion of the container 20 .

FIG. 5 is an enlarged view of part H shown in FIG. 3 . As shown in FIG. 5, the convex part 26 is contacting the 2nd flat surface 22a of the 2nd base material 22. As shown in FIG. In this way, by bringing the convex portion 26 into contact with the second flat surface 22a, the liquid or gas can be more reliably blocked. Accordingly, it is possible to more reliably suppress intrusion of an external liquid or gas from the joint portion of the container 20 .

Further, the convex portion 26 also functions as a spacer that defines the interval between the first flat surface 21a and the second flat surface 22a by making contact with the second flat surface 22a. Accordingly, according to the non-contact communication medium 1 according to the embodiment, it is possible to suppress the non-uniform thickness of the adhesive layer 23 between the plurality of non-contact communication media 1 . In other words, it is possible to suppress non-uniformity in quality between the plurality of non-contact communication media 1 .

<Production method>

Next, an example of the manufacturing method of the non-contact communication medium 1 by embodiment is demonstrated.

First, the powder of kogelite and the powder of a sintering aid are prepared. The sintering aid is, for example, a rare earth oxide (yttrium oxide, cerium oxide, etc.), an alkali metal oxide (lithium oxide, sodium oxide, etc.), or an alkaline earth metal (calcium oxide). Moreover, you may use what mixed magnesium oxide, aluminum oxide, and a silicon oxide in the composition ratio of a desired nose gelite instead of the powder of cozelite. Next, the prepared powder is put into a vibrating mill together with water as a solvent, and pulverized and mixed to obtain a raw material.

Then, organic components, such as a binder, a plasticizer, and a mold release agent, are added with respect to the raw material obtained by grind|pulverizing and mixing. Then, a slurry is produced by stirring these, and the produced slurry is spray-dried using a spray dryer. Thereby, ceramic granules are obtained.

Then, powder press molding is performed with respect to the created ceramic granules, and the molded object of the 1st base material 21 and the 2nd base material 22 is obtained. Moreover, the accommodation recessed part 25 and the circumferential convex part 26 (refer FIG. 3) are also shape|molded with a metal mold|die in this process.

Then, degreasing is performed by heat-treating the molded body in an atmospheric atmosphere, a vacuum atmosphere, or a nitrogen gas atmosphere. Then, the 1st base material 21 and the 2nd base material 22 are obtained by baking a molded object. In addition, in order to obtain a desired shape, you may perform a cutting and grinding process with respect to the molded object of the 1st base material 21 and the 2nd base material 22, or the 1st base material 21 and the 2nd base material 22 after baking.

Then, after accommodating the electronic component 10 in the accommodation recessed part 25, the 1st flat surface 21a of the 1st base material 21, and the 2nd flat surface 22a of the 2nd base material 22 Join using adhesive. Thereby, the container 20 which accommodated the electronic component 10 is obtained. As described above, the non-contact communication medium 1 according to the embodiment is obtained.

<First Modification>

6 is an enlarged cross-sectional view of a contactless communication medium according to a first modification. As shown in FIG. 6 , a container 20A included in the non-contact communication medium 1A according to the first modification has a second base material 22A. The second substrate 22A has a concave portion 27A at a position opposite to the convex portion 26 on the second flat surface 22a.

When viewed in the cross section shown in Fig. 6, specifically, when viewed as a cross section in which the container 20A is cut with a plane perpendicular to the flat surfaces 21a, 22a and passing through the center of the flat surfaces 21a, 22a, concave The width W1 of the portion 27A is smaller than the width W2 of the convex portion 26 . In this case, the convex portion 26 contacts the open end 27A1 of the concave portion 27A to close the concave portion 27A. The inner space 27A2 of the concave portion 27A closed by the convex portion 26 may have a cavity not filled with an adhesive. The cavity in this internal space 27A2 functions as a space for collecting the liquid or gas that has invaded from the outside. In addition, the internal space 27A2 may have an adhesive agent partially.

In this way, by making the width of the concave portion 27A smaller than the width of the convex portion 26, the internal space 27A2 in which the liquid or gas that has invaded from the outside is collected between the concave portion 27A and the convex portion 26A is formed. can be formed By collecting the liquid or gas in the inner space 27A2, it is possible to suppress the intrusion of the liquid or gas into the inner space 27A2. Accordingly, according to the non-contact communication medium 1A according to the first modification, it is possible to further suppress the intrusion of an external liquid or gas from the joint portion of the container 20A.

Further, according to the non-contact communication medium 1A according to the first modification, since the position of the concave portion 27A corresponds to the position of the convex portion 26, in the manufacturing process of the non-contact communication medium 1A, the first Positioning of the 1st base material 21 and the 2nd base material 22A can be facilitated.

<Second Modification Example>

Fig. 7 is an enlarged cross-sectional view of a non-contact communication medium according to a second modification. As shown in FIG. 7, the container 20B which the non-contact communication medium 1B by 2nd modification has has the 2nd base material 22B.

The width W1 of the concave portion 27B of the second substrate 22B is larger than the width W2 of the convex portion 26 . In this case, the convex portion 26 is in contact with the concave portion 27B. Thereby, the penetration path of the liquid or gas from the outside is blocked|blocked. In addition, compared with the case where the second flat surface 22a and the convex portion 26 are in contact (refer to Fig. 5), the creepage distance between the interface between the second flat surface 22a and the adhesive layer 23 becomes longer. It becomes difficult for the liquid or gas which has penetrated from the accommodating recessed part 25 to reach|attain.

Therefore, according to the non-contact communication medium 1B according to the second modification, it is possible to further suppress the intrusion of an external liquid or gas from the joint portion of the container 20B.

<Third modification example>

Fig. 8 is an enlarged cross-sectional view of a non-contact communication medium according to a third modification. As shown in Fig. 8, the container 20C included in the non-contact communication medium 1C according to the third modified example has a second base material 22B similar to that of the second modified example. The width W1 of the concave portion 27B of the second substrate 22B is larger than the width W2 of the convex portion 26C of the first substrate 21C, which will be described later.

The container 20C according to the third modification has the first base 21C. The convex part 26C which 21 C of 1st base materials have is rectangular shape, and the front-end surface is flat. On the other hand, the inner surface of the recessed part 27B which the 2nd base material 22B has is curved. In this case, the convex part 26C comes into contact with the curved inner surface of the recessed part 27B, and the recessed part 27B is blocked. The inner space 27B1 of the concave portion 27B closed by the convex portion 26C may have a cavity not filled with an adhesive. The cavity in this internal space 27B1 functions as a space for collecting the liquid or gas that has invaded from the outside. In addition, the internal space 27B1 may have an adhesive agent partially.

In this way, the non-contact communication medium 1C according to the third modification can increase the creepage distance between the interface between the second flat surface 22a serving as a penetration path of liquid or gas and the adhesive layer 23 . Further, in the non-contact communication medium 1C according to the third modification, the concave portion 27B can form the internal space 27B1 in which the liquid or gas that has invaded from the outside is collected. Accordingly, according to the non-contact communication medium 1C according to the third modification, it is possible to further suppress the intrusion of an external liquid or gas from the joint portion of the container 20C.

<Fourth modification>

Fig. 9 is an enlarged cross-sectional view of a non-contact communication medium according to a fourth modification. As shown in FIG. 9 , the container 20D of the non-contact communication medium 1D according to the fourth modification has a second base 22D.

The second substrate 22D has a concave portion 27D. The width of the concave portion 27D is, for example, the same as the width of the convex portion 26 of the first substrate 21 . In addition, the depth of the recessed part 27D is equal to the protrusion height of the convex part 26, for example.

In the non-contact communication medium 1D according to the fourth modification, the convex portion 26 is not in contact with the concave portion 27D, and an adhesive layer 23 is formed between the convex portion 26 and the concave portion 27D. is interposed Thus, it is not required that the convex part 26 is always in contact with the 2nd base material 22D. Even in this case, since the creepage distance of the penetration path of the liquid or gas can be increased, it is possible to suppress the penetration of the external liquid or gas from the joint portion of the container 20D.

<Fifth modified example>

Fig. 10 is an enlarged cross-sectional view of a contactless communication medium according to a fifth modification. As shown in FIG. 10 , the container 20E included in the non-contact communication medium 1E according to the fifth modification has a second base 22E.

The second base material 22E according to the fifth modification has a convex portion 28 protruding from the second flat surface 22a in a circumferential shape so as to surround the receiving concave portion 25 (see FIG. 3 and the like).

In this way, by forming the convex portions 26 and 28 on both sides of the first flat surface 21a and the second flat surface 22a differently from each other, the penetration of liquid or gas from the joint portion of the container 20E is further reduced. can be suppressed Specifically, the penetration of liquid or gas from the interface between the adhesive layer 23 and the second flat surface 22a and the penetration of liquid or gas from the interface between the adhesive layer 23 and the first flat surface 21a can be suppressed. can

In addition, although the example in the case where the convex part 28 is located outside the convex part 26 of the 1st base material 21 is shown in FIG. 10, the convex part 28 is the convex part of the 1st base material 21. (26), that is, it may be located between the convex part 26 and the accommodation recessed part 25.

In addition, in FIG. 10, the convex part 26 of the 1st base material 21 is in contact with the 2nd flat surface 22a of the 2nd base material 22E, and the convex part 28 of the 2nd base material 22E is also The example in the case of contacting the 1st flat surface 21a of the 1st base material 21 was shown. It is not limited to this example, For example, only one of the convex parts 26 and 28 may contact the flat surfaces 21a, 22a. Further, both of the convex portions 26 and 28 may be separated from the flat surfaces 21a and 22a.

<Sixth modification>

11 is an enlarged cross-sectional view of a non-contact communication medium according to a sixth modification. 11, the container 20F which the non-contact communication medium 1F by 6th modification has has the 1st base material 21F.

The 1st base material 21F by a 6th modification has the some convex part 26E. Thus, the some convex part 26E may be formed in one of the 1st base material 21F and the 2nd base material 22 (here, the 1st base material 21F).

<Seventh Modification>

12 is an enlarged cross-sectional view of a non-contact communication medium according to a seventh modification. As shown in FIG. 12 , the container 20G included in the non-contact communication medium 1G according to the seventh modification has a first base material 21G.

The first base material 21G according to the seventh modification has a convex portion 26G. The convex portion 26G has a rectangular shape when viewed in cross section, and is in surface contact with the second flat surface 22a of the second base material 22 .

In this way, when the convex portion 26G is in surface contact with the second flat surface 22a, it is possible to further suppress the intrusion of liquid or gas from the outside.

<8th modification>

Fig. 13 is an enlarged cross-sectional view of a non-contact communication medium according to an eighth modification. As shown in FIG. 13, the container 20H which the non-contact communication medium 1H by 8th modification has has the 1st base material 21H.

The first base material 21H according to the eighth modification has a convex portion 26 and a concave portion 29 . The concave portion 29 is opened to the first flat surface 21a and is located outside the convex portion 26 . In addition, the recessed part 29 may be located inside the convex part 26. As shown in FIG. The concave portion 29 functions as a space for collecting the liquid or gas that has invaded from the outside. Thereby, it can suppress that an external liquid or gas reaches the accommodation recessed part 25 from the joint part of the container 20H.

The recessed portion 29 does not necessarily need to be circumferentially shaped. For example, the 1st base material 21H may have the some concave part 29 which is circular in planar view, and these some concave part 29 may be arranged in circumferential shape.

In addition, although the example in the case where the recessed part 29 is formed in the 1st base material 21H was shown here, the recessed part 29 may be formed in the 2nd base material 22. FIG.

<Ninth Modification>

Fig. 14 is an enlarged cross-sectional view of a non-contact communication medium according to a ninth modification. As shown in Fig. 14, the container 20J of the non-contact communication medium 1J according to the ninth modification has an adhesive layer 23J.

The adhesive layer 23J according to the ninth modification protrudes from between the first substrate 21 and the second substrate 22 . The adhesive layer 23J protrudes over the entire circumference of the receptor 20J. In addition, the adhesive layer 23J should just protrude from a part of circumferential direction of the container 20J at least.

Thus, when the adhesive layer 23J protrudes from the 1st base material 21 and the 2nd base material 22, the 1st base material 21 and the 2nd base material 22 can be joined more firmly.

<10th modification>

Fig. 15 is an enlarged cross-sectional view of a non-contact communication medium according to a tenth modification. As shown in Fig. 15, the container 20K of the non-contact communication medium 1K according to the tenth modification has a spherical shape. Specifically, the first base material 21K and the second base material 22K have a hemispherical shape. The spherical container 20K is obtained by bonding the 1st base material 21K and the 2nd base material 22K via the adhesive layer 23K.

In this way, by making the container 20K into a spherical shape without corners, damage such as defects or cracks of the container 20K can be further suppressed.

<Modified example regarding the press-fit structure of an electronic component>

However, there is room for further improvement in the prior art in that it suppresses the occurrence of defects such as defects in the electronic component by moving the electronic component such as an RFID tag within the accommodation space. Therefore, the non-contact communication medium may have a press-fit structure of an electronic component.

<11th modification>

First, with reference to FIGS. 16-18, the structure of the non-contact communication medium according to the eleventh modification which has the said press-fit structure is demonstrated. 16 is a side view of a contactless communication medium according to an eleventh modification. 17 is a plan view of the contactless communication medium according to the eleventh modification. 18 is a cross-sectional view when viewed along the line XVIII-XVIII shown in FIG. 17 .

In addition, the press-fit structure of the electronic component 10 shown in the following 11th - 21st modified examples can be suitably attached to the non-contact communication medium by the above-mentioned embodiment and 1st - 10th modification. .

16 to 18 , the non-contact communication medium 1L according to the eleventh modification includes an electronic component 10 and a container 200 . The electronic component 10 is, for example, an RFID tag.

The container 200 has a first substrate 210 and a second substrate 220 made of ceramics, and an adhesive layer 230 . The first substrate 210 and the second substrate 220 are bonded to each other through the adhesive layer 230 . Specifically, the first substrate 210 and the second substrate 220 have flat surfaces 210a and 220a of substantially the same diameter that are opposed to each other. The flat surfaces 210a and 220a of the first substrate 210 and the second substrate 220 are bonded through the adhesive layer 230 . Hereinafter, the flat surface 210a of the first base material 210 is referred to as a "first flat surface 210a", and the flat surface 220a of the second base material 220 is referred to as a "second flat surface 220a". write it as

The first substrate 210 has a receiving recess 250 for receiving the electronic component 10 . The receiving concave portion 250 is opened in the central portion of the first flat surface 210a. The first flat surface 210a is blocked by the second flat surface 220a of the second substrate 220 . Thereby, the electronic component 10 is sealed inside the container 200. As shown in FIG.

The adhesive layer 230 is made of an adhesive. The adhesive should just have heat resistance that can withstand the use environment of the non-contact communication medium 1L.

Both the first substrate 210 and the second substrate 220 have a cylindrical shape. Specifically, the first substrate 210 and the second substrate 220 have flat surfaces (top and bottom surfaces) that are circular in plan view at both ends. In addition, the first substrate 210 and the second substrate 220 have a curved surface (outer peripheral surface) connecting the upper surface and the lower surface. The adhesive layer 230 is positioned between the first flat surface 210a that is the upper surface of the first substrate 210 and the second flat surface 220a that is the lower surface of the second substrate 220 . The first substrate 210 and the second substrate 220 joined by the adhesive layer 230 as a whole have a cylindrical shape (so-called coin shape).

A receiving concave portion 250 is positioned on the first flat surface 210a of the first substrate 210 . The electronic component 10 is accommodated in this receiving recess 250 . The inside of the accommodation recessed part 250 is a space, and a filler etc. are not located.

As shown in FIG. 18, the 2nd base material 220 has the accommodation convex part 260 which protrudes from the 2nd flat surface 220a, and enters the accommodation recessed part 250. As shown in FIG.

In this way, by allowing the receiving convex portion 260 to enter the receiving concave portion 250 , the inner space of the receiving concave portion 250 can be narrowed. When the internal space of the accommodation recessed part 250 becomes narrow, even if the electronic component 10 moves in the internal space of the accommodation recessed part 250, the movement amount decreases. Accordingly, according to the non-contact communication medium 1L according to the eleventh modification, it can be suppressed that the electronic component 10 is moved in the receiving recessed portion 250 , thereby causing damage such as a defect to the electronic component 10 . .

In addition, in the non-contact communication medium 1L according to the eleventh modification, the electronic component 10 is sandwiched by the front end surface 260a of the accommodation convex portion 260 and the bottom surface 250a of the accommodation concave portion 250 . are doing Thereby, the movement of the electronic component 10 in the accommodation recessed part 250 can be suppressed. In addition, the interior of the receiving concave portion 250 is a space. The electronic component 10 does not contact any member (for example, a filler, etc.) other than the front-end|tip surface 260a of the accommodation convex part 260 and the bottom surface 250a of the accommodation recessed part 250. As shown in FIG. Therefore, compared with the case where the electronic component 10 is fixed with a filler etc., for example, it becomes difficult to transmit the heat|fever from the outside to the electronic component 10. FIG.

In this way, the electronic component 10 is sandwiched between the front end surface 260a of the receiving convex portion 260 and the bottom surface 250a of the receiving concave portion 250, while suppressing heat conduction to the electronic component 10 . , it is possible to suppress the occurrence of damage such as defects in the electronic component 10 .

In addition, the front-end|tip surface 260a of the accommodation convex part 260 by 11th modification faces the bottom surface 250a of the accommodation recessed part 250, in other words, it curves toward the electronic component 10. Thereby, the contact area of the accommodation convex part 260 and the electronic component 10 can be made small. Therefore, heat conduction from the second base material 220 to the electronic component 10 can be suppressed.

<Twelfth modified example>

19 is an enlarged cross-sectional view of a non-contact communication medium according to a twelfth modification. As shown in FIG. 19, the container 200M which the contactless communication medium 1M by 12th modification has has the 2nd base material 220M.

The front end surface of the receiving convex portion 260M of the second base material 220M is recessed in a curved shape, and at least a part of the electronic component 10 is accommodated in the recessed portion. In the twelfth modification, the electronic component 10 is in point contact with the concave surface 260M1 of the receiving convex portion 260M, and is in point contact with the concave surface 260M1 and the bottom surface 250a of the receiving concave portion 250. It is inserted by

In this way, the front end surface of the receiving convex portion 260M may be recessed. Even in this case, the contact area between the electronic component 10 and the accommodation convex portion 260M can be reduced. Therefore, the movement of the electronic component 10 can be suppressed, suppressing heat conduction from the 2nd base material 220M to the electronic component 10. As shown in FIG.

<Thirteenth modification>

20 is an enlarged cross-sectional view of a non-contact communication medium according to a thirteenth modification. As shown in FIG. 20 , the container 200N included in the non-contact communication medium 1N according to the thirteenth modification has a second base material 220N.

The front end surface of the accommodation convex part 260N which the 2nd base material 220N has is recessed. The concave surface 260N1 is, for example, a flat surface. The electronic component 10 is in surface contact with this concave surface 260N1, and is in a state sandwiched between the concave surface 260N1 and the bottom surface 250a of the receiving concave portion 250. As shown in FIG.

Thus, the movement of the electronic component 10 can be suppressed more reliably by making the electronic component 10 and the accommodation convex part 260N surface contact. Further, the edge portion 260N2 positioned on the outer periphery of the concave surface 260N1 protrudes toward the bottom surface 250a of the receiving concave portion 250 rather than the concave surface 260N1. For this reason, even if the electronic component 10 moves, the movement amount of the electronic component 10 can be decreased by the electronic component 10 contact|abutting to the edge part 260N2, and the electronic component 10 is defective, etc. damage can be prevented.

<14th modification>

Fig. 21 is an enlarged cross-sectional view of a non-contact communication medium according to a fourteenth modification. As shown in FIG. 21 , the container 200P included in the non-contact communication medium 1P according to the fourteenth modification has a second base material 220P.

The front end surface of the accommodation convex part 260P which the 2nd base material 220P has is recessed. This concave surface 260P1 is a flat surface.

In the fourteenth modification, the edge portion 260P2 located on the outer periphery of the concave surface 260P1 is in contact with the bottom surface 250a of the receiving concave portion 250 . The electronic component 10 is completely accommodated in the recess of the receiving convex portion 260P.

In this way, the edge portion 260P2 of the accommodation convex portion 260P may contact the bottom surface 250a of the accommodation concave portion 250 . In this case, the receiving convex portion 260P also functions as a spacer that defines an interval between the first flat surface 210a and the second flat surface 220a. Therefore, according to the non-contact communication medium 1P according to the fourteenth modification, it is possible to suppress the non-uniform thickness of the adhesive layer 230 among the plurality of non-contact communication media 1P. In other words, it is possible to suppress non-uniformity in quality between the plurality of non-contact communication media 1P.

<Fifteenth modified example>

22 is an enlarged cross-sectional view of a contactless communication medium according to a fifteenth modification. As shown in FIG. 22, the container 200Q which the contactless communication medium 1Q by 15th modification has has the 2nd base material 220Q.

The receiving convex portion 260Q of the second substrate 220Q has a plurality of protrusions 260Q1 protruding from the front end surface. In the fifteenth modification, the electronic component 10 is in a state sandwiched between the plurality of projections 260Q1 and the bottom surface 250a of the receiving concave portion 250 .

Here, although the example in the case where the some projection 260Q1 is formed in the front-end surface of the accommodation convex part 260Q is shown, the accommodation convex part 260Q just needs to have at least one projection 260Q1.

In this way, the receiving convex portion 260Q may have at least one projection 260Q1 protruding from the front end surface. Even in this case, the contact area between the electronic component 10 and the accommodation convex portion 260Q can be reduced. Therefore, the movement of the electronic component 10 can be suppressed while suppressing heat conduction from the second base material 220Q to the electronic component 10 .

In addition, since the accommodating convex portion 260Q and the electronic component 10 come into contact at multiple points by forming the plurality of protrusions 260Q1 , the contact area between the electronic component 10 and the receiving convex portion 260Q is reduced while reducing the electronic component. The movement of (10) can be suppressed more reliably.

<Sixteenth Modification>

23 is an enlarged cross-sectional view of a non-contact communication medium according to a sixteenth modification. As shown in Fig. 23, the container 200R included in the non-contact communication medium 1R according to the sixteenth modification has, for example, a second base material 220Q similar to that of the fifteenth modification.

In addition, the receptor 200R according to the sixteenth modification has a first substrate 210R. The first substrate 210R has a receiving concave portion 250R. The receiving recessed portion 250R has a plurality of projections 250R1 protruding from the bottom surface 250a. In the sixteenth modification, the electronic component 10 is sandwiched by the plurality of projections 260Q1 formed on the receiving convex portion 260Q and the plurality of projections 250R1 formed on the receiving concave portion 250R. has been

Here, an example in which a plurality of projections 250R1 are formed on the bottom surface 250a of the receiving concave portion 250R is shown. It is not limited to this, and the accommodation recessed part 250R should just have at least one projection 250R1.

In this way, the receiving recessed portion 250R may have at least one projection 250R1 protruding from the bottom surface 250a. Also in this case, the contact area of the electronic component 10 and the accommodation recessed part 250R can be made small. Accordingly, it is possible to suppress the movement of the electronic component 10 while suppressing heat conduction from the first base material 210R to the electronic component 10 .

In addition, by forming the plurality of projections 250R1, the accommodating concave portion 250R and the electronic component 10 come into contact at multiple points, so that the contact area between the electronic component 10 and the accommodating concave portion 250R is reduced. , the movement of the electronic component 10 can be more reliably suppressed.

In addition, by setting the distance between the protrusions 250R1 so that the electronic component 10 is accommodated between the two protrusions 250R1 , positioning of the electronic component 10 can be facilitated.

<Seventeenth Modification Example>

24 is an enlarged cross-sectional view of a non-contact communication medium according to a seventeenth modification. As shown in FIG. 24, the container 200S which the non-contact communication medium 1S by the seventeenth modification has has cushioning material 270S1 in the front-end|tip surface 260a of the accommodation convex part 260. As shown in FIG. Moreover, the container 200S has cushioning material 270S2 also on the bottom surface 250a of the accommodation recessed part 250. As shown in FIG.

The cushioning materials 270S1 and 270S2 are made of a material having a higher flexibility than the first and second base materials 210 and 220 made of ceramics, for example, resin. As such a resin, for example, silicone, amide-based, imide-based, and amide/imide-based resins can be suitably used. In addition, it is preferable that the cushioning materials 270S1 and 270S2 have heat resistance.

In the seventeenth modification, the electronic component 10 is fitted into the receiving convex portion 260 and the receiving concave portion 250 via the cushioning members 270S1 and 270S2. For this reason, even when the container 200S receives an impact, for example, it can suppress that an impact is transmitted to the electronic component 10 because cushioning material 270S1, 270S2 absorbs an impact. Accordingly, according to the non-contact communication medium 1S according to the seventeenth modification, damage to the electronic component 10 can be more reliably suppressed.

Here, the example in the case where cushioning material 270S1, 270S2 is provided in both of the accommodation convex part 260 and the accommodation recessed part 250 was shown. It is not limited to this, What is necessary is just to provide cushioning material 270S1, 270S2 in at least one of the accommodation convex part 260 and the accommodation recessed part 250. FIG.

<18th modification>

25 is an enlarged cross-sectional view of a non-contact communication medium according to an eighteenth modification. As shown in FIG. 25 , a container 200T included in the non-contact communication medium 1T according to the eighteenth modification has a second base material 220T.

The accommodation convex portion 260T of the second base material 220T according to the eighteenth modification is made of a cushioning material having higher flexibility than the first base material 210 and the second base material 220T.

In this way, the entire accommodation convex portion 260T may be formed of a cushioning material. Thereby, the accommodation convex part 260T can be replaced according to the dimension of the electronic component 10, for example.

<Nineteenth Modification Example>

26 is an enlarged cross-sectional view of a non-contact communication medium according to a nineteenth modification. 27 is a cross-sectional view taken along the line XXVII-XXVII shown in FIG. 26 . As shown in FIG. 26, the container 200U which the non-contact communication medium 1U by 19th modification has has 220U of 2nd base materials.

26 and 27, the receiving convex portion 260U of the second base material 220U has a protrusion 260U1 circumferentially protruding from the front end surface. In the nineteenth modification, the electronic component 10 is sandwiched between the protrusion 260U1 of this circumferential shape and the bottom surface 250a of the accommodation concave portion 250 .

In this way, the receiving convex portion 260U may have a projection 260U1 circumferentially protruding from the distal end surface. Thereby, the movement of the electronic component 10 can be suppressed more reliably, making small the contact area of the electronic component 10 and 260U of accommodation convex parts.

<Twenty modified example>

Fig. 28 is an enlarged cross-sectional view of a non-contact communication medium according to a twentieth modification. As shown in Fig. 28, the receptor 200V included in the non-contact communication medium 1V according to the twentieth modification has an adhesive layer 230V.

The adhesive layer 230V according to the twentieth modification protrudes from between the first and second substrates 210 and 220 . The adhesive layer 230V protrudes over the entire circumference of the receptor 200V. In addition, the adhesive layer 230V may protrude from at least a part of the circumferential direction of the container 200V.

As described above, since the adhesive layer 230V protrudes from the first substrate 210 and the second substrate 220 , the first substrate 210 and the second substrate 220 may be more firmly bonded.

<21st modification>

29 is an enlarged cross-sectional view of a non-contact communication medium according to a twenty-first modification. As shown in Fig. 29, the container 200W included in the non-contact communication medium 1W according to the twenty-first modification has a spherical shape. Specifically, the first base material 210W and the second base material 220W have a hemispherical shape. When the first substrate 210W and the second substrate 220W are bonded through the adhesive layer 230W, a spherical container 200W is obtained.

In this way, damage such as defects or cracks of the container 200W can be further suppressed by making the container 200W into a spherical shape without corners.

<Other variations>

The ceramics constituting the first and second substrates are not limited to kogelite. For example, the ceramics constituting the first substrate and the second substrate may be Al ₂ O ₃ (alumina), Si ₃ N ₄ (silicon nitride), SiC (silicon carbide), or Al ₂ TiO ₅ (aluminum titanate). _In addition, crystallized glass, such as Li2O _- Al2O3 _- SiO2, may be sufficient as the ceramic which comprises a 1st base material and a _2nd base material.

The receptor preferably has a lightness index (L*) (a value of a dimension (L) indicating lightness in the Lab color space) of 50 or more. Thereby, since the stain|pollution|contamination adhering to a container becomes conspicuous, the replacement time can be judged easily. Moreover, compared with the case where the lightness index (L*) is less than 50 (that is, when it is made into a dark color), since heat is hard to be confined, it can make it difficult to transmit heat to an electronic component. In addition, the lightness of a receptor can be adjusted with a pigment, for example (for example, refer patent 5762522, patent 5744045 publication).

In addition, you may make a color different between a 1st base material and a 2nd base material. Thereby, since the upper and lower visibility is increased, it is possible to facilitate the operation of attaching the non-contact communication medium to the components to be monitored. For example, when an operator intends to place an electronic component in a close position due to a component to be monitored or the like, the first substrate in which the electronic component is accommodated can be easily specifically determined among the first and second substrates. . Thereby, the 1st base material can be arrange|positioned close to the component etc. used as a monitoring object.

When the color of the first substrate and the second substrate are different, the color of the first substrate in which the electronic component is accommodated may be lighter than that of the second substrate. Thereby, it can make it hard to transmit heat to an electronic component, raising up and down visibility. In addition, it is preferable that the electronic component is far away from the member having a low brightness index. Thereby, heat may be difficult to be transmitted by the electronic component.

The electronic component is not limited to the RFID tag, and other electronic components may be used as long as non-contact communication is performed. For example, the electronic component may be a sensor having a non-contact communication function. Further, the sensor may be, for example, a sensor that measures the processing environment of a component to be monitored, such as a temperature sensor.

The part to which the non-contact communication medium is attached according to the present disclosure is not limited to the part to be plated.

For example, the non-contact communication medium according to the present disclosure may be attached to parts such as cast slabs manufactured in a metal material foundry.

Further, the non-contact communication medium according to the present disclosure may be used for article management in a vulcanization process in a rubber product manufacturing process.

The vulcanization step is a step of crosslinking molecules by chemically reacting sulfur or peroxide blended with the raw material at a temperature and time in order to increase the elastic limit of the rubber-based raw material. In addition, pressure may be added in the vulcanization process. The temperature in the vulcanization step is, for example, 100°C to 200°C. In addition, the pressure in a vulcanization process is 0.5 MPa - 2 MPa, for example.

As an example, the non-contact communication medium according to the present disclosure may be attached to a used tire that is reproduced as a retread tire. A retread tire is obtained by shaving the surface of a used tire, attaching a new rubber sheet thereon, and then vulcanizing it.

As a vulcanization process of a retread tire, a remote method and a precure method are known. The remote method is a method of bonding an unvulcanized rubber sheet to the surface of a used tire and then vulcanizing it at high temperature and high pressure using a mold. In addition, the precure method is a method in which a vulcanized rubber sheet is bonded to the surface of a used tire, and then vulcanized at low temperature and low pressure in a vulcanization can. The contactless communication medium according to the present disclosure is applicable to any of a remote method and a precure method. In particular, since the pre-cure method is for small-volume, multi-variety production, there are relatively many inspection processes through human hands. On the other hand, human cost can be reduced and the production efficiency of a retread tire can be improved by performing the article management by the non-contact communication medium by this indication.

The non-contact communication medium according to the present disclosure is preferably attached to a place other than the tread to which the rubber sheet is adhered. For example, the non-contact communication medium according to the present disclosure may be disposed inside a used tire.

Further, the non-contact communication medium according to the present disclosure may be attached to a medical instrument (eg, forceps, pointer, etc.).

In the medical field, it is a challenge how to achieve prevention of internal failure of medical instruments, rationalization of management of medical instruments, and prevention of overturning of medical instruments during surgery. In contrast, by attaching the non-contact communication medium according to the present disclosure to a medical device, each medical device can be managed by an RFID tag, which can contribute to solving the above problems.

In addition, the non-contact communication medium according to the present disclosure may be used for marking for specifying a lesion site in the body.

As a conventional marking method, the dye coloring method for living body is known. The bio-pigmentation method is to color the lesion area in the body found during the examination with a pigment. However, it is difficult to precisely specify the lesion site because the dyeing method for living body has a wide coloring range and the pigment diffuses with the lapse of time. In addition, as another marking method, a method in which a metal needle or clip is placed on a lesion site has been proposed. However, this method has a problem in that it is necessary to prepare a CT scan device during surgery, or there is a risk of excessive radiation coating occurring.

When the non-contact communication medium according to the present disclosure is used for marking, first, the non-contact communication medium according to the present disclosure is placed in the lesion site before surgery. Thereafter, by using the sensor antenna during surgery, for example, by measuring the distance between the RFID tag and the sensor antenna, the location of the RFID, that is, the location of the lesion site is estimated.

As described above, when the non-contact communication medium according to the present disclosure is used for marking, the non-contact communication medium according to the present disclosure is preferably as small as possible in terms of being placed in the body. In this respect, the ceramics constituting the container of the present disclosure have, for example, a higher dielectric constant than that of resin, and thus it is difficult to inhibit communication by RFID. For this reason, the non-contact communication medium of the present disclosure can be downsized compared with a non-contact communication medium having, for example, a resin container.

As described above, the contactless communication medium (as an example, the contactless communication media 1, 1A to 1K) according to the embodiment includes an electronic component (as an example, the electronic component 10) and a receiver (as an example, the receiver ( 20, 20A to 20H)). Electronic components perform contactless communication. The receptor has a first substrate (eg, first substrates 21, 21C, 21F, 21G, 21H, 21K) and a second substrate in which opposing flat surfaces are bonded through an adhesive layer (eg, adhesive layers 23, 23J, 23K); The electronic component is accommodated in two base materials (for example, the second base materials 22, 22A, 22B, 22D, 22E, and 22K) provided on one flat surface of the accommodation concave portion (as an example, the accommodation concave portion 25). and the receiving concave portion is closed by the other flat surface.In addition, the first substrate is a convex protruding circumferentially from the flat surface (for example, the first flat surface 21a) of the first substrate to surround the receiving concave portion. It has a part (for example, the convex parts 26, 26A, 26C, 26E, 26G) It can suppress that an external liquid or gas penetrates from the junction part of a container by this.

The convex portion may contact the flat surface (eg, the second flat surface 22a) of the second substrate. Thereby, the intrusion path|route of the liquid or gas which reaches the accommodation recessed part from the outside can be blocked|blocked. Therefore, it is possible to more reliably suppress the intrusion of an external liquid or gas from the junction portion of the receptor.

The convex portion may be in surface contact with the flat surface of the second substrate. Thereby, penetration of an external liquid or gas from the junction part of a container can be suppressed more reliably.

The second base material may have concave portions (eg, concave portions 27A, 27B, 27D) at positions opposite to the convex portions on the flat surface of the second substrate. Thereby, in the manufacturing process of a non-contact communication medium, alignment of the position of a 1st base material and a 2nd base material can be facilitated.

The width of the concave portion (eg, width W1 ) may be smaller than the width of the convex portion (eg, width W2 ). Thereby, it is possible to form an inner space between the concave portion and the convex portion in which the liquid or gas that has invaded from the outside is collected, and the liquid or gas is collected in this inner space so that the liquid or gas enters into the inner space than the inner space. can be restrained

The width of the concave portion may be larger than the width of the convex portion. In this case, since the creepage distance between the interface between the flat surface of the second substrate and the adhesive layer becomes long, it becomes difficult for the liquid or gas to penetrate from the outside to reach the accommodation recess. Therefore, it is possible to further suppress the intrusion of an external liquid or gas from the junction portion of the receptor.

The inner surface of the concave portion may be curved. In this case, the tip surface of the convex portion may be flat. Thereby, while being able to lengthen the creepage distance of the interface of the flat surface of a 2nd base material and an adhesive layer, the internal space in which the liquid or gas which invaded from the outside collects can be formed as a recessed part. Therefore, it is possible to further suppress the intrusion of an external liquid or gas from the junction portion of the receptor.

The second substrate may have a convex portion protruding circumferentially from the flat surface of the second substrate to surround the receiving concave portion outside or inside the convex portion of the first substrate. By forming the convex portions on both the flat surface of the first substrate and the flat surface of the second substrate to alternate with each other, it is possible to further suppress intrusion of an external liquid or gas from the joint portion of the container.

The adhesive layer may protrude from the first and second substrates. Thereby, a 1st base material and a 2nd base material can be joined more firmly.

New effects and modifications can be easily derived by those skilled in the art. For this reason, the more extensive form of this invention is not limited to the specific detail and typical embodiment shown and described as mentioned above. Accordingly, various modifications can be made without departing from the spirit or scope of the overall inventive concept defined by the appended claims and their equivalents.

1: contactless communication medium 10: electronic component
20: receptor 21: first substrate
21a: 1st flat surface 22: 2nd base material
22a: second flat surface 23: adhesive layer
25: receiving concave part 26: convex part

Claims (9)

Electronic components for non-contact communication;
It has a 1st base material and 2nd base material which opposing flat surfaces are joined through the adhesive layer, the said electronic component is accommodated in the accommodation recessed part formed in the said flat surface on one side, and the said accommodation recessed part is accommodated by the other flat surface. having receptors that are occluded,
The first substrate has a convex portion protruding from the flat surface of the first substrate in a circumferential shape to surround the receiving concave portion. The method of claim 1,
and the convex portion is in contact with the flat surface of the second substrate. 3. The method of claim 2,
The convex portion is in surface contact with the flat surface of the second substrate. The method of claim 1,
The second substrate has a concave portion at a position opposite to the convex portion on the flat surface of the second substrate. 5. The method of claim 4,
A width of the concave portion is smaller than a width of the convex portion. 5. The method of claim 4,
A width of the concave portion is greater than a width of the convex portion. 7. The method of claim 6,
The inner surface of the concave portion is curved,
The tip surface of the convex portion is flat for a non-contact communication medium. 8. The method according to any one of claims 1 to 7,
The second base material has a convex portion that protrudes from the flat surface of the second base member in a circumferential shape to surround the receiving concave portion on the outside or inside the convex portion of the first substrate. 9. The method according to any one of claims 1 to 8,
The adhesive layer protrudes from the first substrate and the second substrate.

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