TW595282B - Circuit board apparatus - Google Patents

Abstract

A circuit board apparatus is especially suitable for PC card with wireless communication function. It contains a mutually connected multi-layer first circuit board and single-layer second circuit board. The main electronic components are installed on the first circuit board, and the wireless transmitting and receiving components are installed on the second circuit board. The wireless transmitting and receiving components are not located at the overlapped part with the first circuit board. Hence the general ground layer of the multi-layer first circuit board doesn't block the transmitting and receiving of wireless signal. On the other hand, the use of single-layer second circuit board also reduces the total cost.

Description

595282 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention is related to—Freme "k; A circuit board device suitable for wireless network cards, which is assembled by standardized electrical modules and reduced by ± ii% Μ ^ to achieve cost efficiency. [Previous technology] Expansion cards for computers (or computer peripheral cards)

:! Said that i not only provides portable computers and other electronic products: can κ charge the energy ^, but also improves the convenience of use. These computer cards (PC c ^ d) have many standard specifications, such as the Personal Computer International Card (Personal Computer Memry Card).

The International Association (abbreviation: PCMCIA) establishes the PCMCIA standard specification as an example. The expansion functions that computer cards can provide include: Fax Card, Network Card, Memory Card, and Wireless LAN Card. and many more. In order to make PC Cards meet the needs of the times, PCMCU also continuously researches and develops new specifications for computer cards. In the future, it is expected that more computer cards with different functions will be developed. In addition to the external dimensions and structural strength of these computer cards, they must comply with international standards and specifications established by PCMCIA. They also have strict restrictions on their electrical safety (such as shielding of electromagnetic interference) and functional specifications. In recent years, the functions provided by computer cards have become stronger and more complex. The number of electronic components required for "relatively" and the design of circuits have increased.

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Sexuality: Both increase dramatically in proportion σ. Because these computer cards are limited by the size of the mines they can carry, in order to provide enough area to accommodate the required meter, at present, most of the most powerful computer cards are internally 2 — "Multi-Layer circuit board" to accommodate rugged circuit design requirements. However, not all computer cards require such a multilayer circuit board. One example is the wireless network card. It is called Lingkao Picture 1. Picture 1 is a perspective view of a conventional circuit board helmet = Luca circuit board. In the first! In the figure, the circuit board device 100 of the wireless network card 100 mainly includes: a multi-layer circuit board; one or more main electronic circuit elements 110 and a wireless transceiver element 0, etc. Among them, the wireless transceiver element 1 2 0 is a kind of analog high-frequency wireless signal (Radio Frequency) transceiver, and these main electronic circuit components 1 1 0 provide analog / digital signal conversion, logical operation of data and data required for wireless communication, It can also communicate with other external devices (such as PCMCIA sockets or computers), and is composed of a variety of electronic components. In conventional technology, the main electronic circuit element 110 and the wireless transceiver element 20 are both disposed on the same multilayer circuit board 130. Those who know this art well know that since the wireless transceiver element 丨 2 is extremely susceptible to electromagnetic interference during the operation of the main electronic circuit element 110, in general, the wireless transceiver element 120 needs to be separated from the main electronic circuit element 110 by a certain distance. Distance, and connected with line 丨 35 to carry out signal transmission between the two to reduce the influence of electromagnetic interference. And, in order to provide stronger functions and

More efficient wireless network communication must include a considerable majority of the main electronic circuit components of this device. The calculation is also very complicated. Therefore, the electronic π pieces and their related circuits are set up with these main electronic thunder policies: generally need to use the multi-layer circuit board 130 to perform functions and operations: dagger; due to the ability of a single-layer circuit board If only the early-layer circuit board is used, the network card can provide too simple and cause the wireless knives or puppets to have limited operating performance. However, since the multi-layer circuit board 丨 the extended metal ground layer of the circuit board has a layer 120 directly disposed on the multi-layer circuit board 13 households = m-line transceiver elements m ^ M -¾-^ ^ / circuit board 13〇, then The wireless transmitting and receiving element 120 I ΐ 30Φ ^ is shielded by the ground layer, which affects the communication quality and performance. Therefore, there are more common solutions than the projection direction of the wireless transceiver element 120, which is a ground plane. However, this will inevitably increase the difficulty and complexity of the layout of the electronic circuit. Refer to FIG. 2, which is a schematic cross-sectional structure diagram of a multi-layer circuit board 130 used in a conventional wireless network card. The multi-layer circuit structure of the multi-layer circuit board 301 includes a metal ground layer 250. Generally speaking, this metal ground layer 250 is usually formed by electroplating or a whole piece of copper foil is bonded to one of the entire multilayer circuit board 130 (which can be a bottom layer or an interlayer), and the metal ground layer 25 The area size of 0 often covers the entire multilayer circuit board 130. However, in the technical field of the wireless network card, in order to avoid the metal ground layer 250 from intercepting the wireless transmitting and receiving component 12 downward transmitting and receiving wireless signals 2000. Therefore, conventional technology must

595282 V. Description of the invention (4) An additional process must be used to remove the metal ground layer located in the projection direction of the wireless transceiver element. This not only causes the complexity of the process and the increase and cost of the process, but also because part of the wireless transceiving element, which is located in the projection direction, cannot be directly coupled (grounded) to the ground plane through the via. 25 0, and the difficulty and complexity of the electronic circuit layout are increased. Moreover, thanks to multilayer circuit boards! The cost of 30% is several times of the cost of a single-shoulder board. As mentioned earlier, since the wireless transceiver I20 and the main electronic circuit components must be separated by a certain distance or more, the benefits are bound to increase. It is necessary to use the area of the multi-layer circuit board 130, and the production cost is relatively increased. In fact, from the foregoing, it can also be known that since the wireless transceiver element 120 and the main electronic circuit element 丨 丨 〇 The simple line 135 is electrically connected. Therefore, in addition to the electronic circuit element and the area covered by II 〇 requires the use of multilayer circuit boards 丨 3 〇 structure, the other parts do not need to use relatively expensive and complex multilayer Circuit board. It can be seen that the circuit board device of the conventional technology still has room for further improvement. In addition, the wireless network card of the conventional technology uses a single electrical board to set the wireless transceiver 120 and the main electronic circuit component 11 〇. Therefore, when you want to change the specifications or functions of the wireless network card, for example, when you want to change, communication protocols, wireless signal frequency or power, or other additional Functional day watch, as long as any of the wireless transceiver element 12 or the main electronic circuit element u :: or the circuit needs to be changed, the entire circuit must be completely redesigned. Only the production and design costs are relatively high, and the cost is also relatively low. elasticity.

Page 8 595282 Five invention descriptions (5) [Summary of the invention] The main purpose of Yu and Ming is to provide a circuit board device, which can be applied to computer cards with communication functions and can provide higher circuit design. In order to reduce the cost of production and reduce the use of wireless communication signals to improve the conventional technology, all the shortcomings are lacking. Another purpose of the China t ^ Ming is to provide a four-board device suitable for use in a wireless network card. Electronic circuit components and wireless transceiver components are provided by providing a first circuit board and first and first modules with modular design, respectively, and the multi-thunder circuit board can be a higher cost but can design complex circuits Therefore, it does not describe a single-layer circuit board with low cost and no ground layer. Borrowing will not reduce the total production cost, and the signal receiving function of the wireless transceiver components will be covered by the ground layer in the circuit board. And when you want to make more changes, you can only change one of the circuit boards. The circuit design, and the design ί use the material directly + need to re-material, Form A — modularized in this # _ > The overall design flexibility and design cost of σα are relatively reduced. In a preferred embodiment, the first circuit board in the circuit board device can be surface-bonded (SMT), mated square welded (weldlng), or glued (side one), etc. Γ can be flat cable (Flat Cable) End of the line-the electrical connection between the electronic circuit element and the wireless transceiver 7G is performed from the 9th circuit board. 卞 /… The 11 ΐ wireless network of the preferred embodiment of the present invention In addition to the circuit board device, the card includes a bottom plate made of plastic material, gold 595282, five invention descriptions (6) ______ top ^ and the plastic structure of the top plate can be combined with the bottom plate. Engagement =: body. Among them, the 'top cover' and the engaging structure on the bottom panel; the engaging structure on the bottom panel forms an accommodating space, so that the page board, the top cover, and the component part can be placed on the Dinggao Road The board and the main electronic circuit are said to be ', and the wireless transceiver element happens to be able to be placed in the empty space to accommodate the space. The board and the bottom panel form a knot [Embodiment] The design of the circuit board device of the present invention Almost winter, electronic circuit components required for Japanese communication functions ：: The word is used to provide no two sets of different first- and second circuit boards': ,, and then :; pieces are set separately: hard #circuit of: layer circuit board, and the second circuit board can be low cost A single-layer circuit board or flat cable with a ground layer. Not only the overall production cost of the circuit of the invention is relatively reduced, but also the signal reception of the wireless transceiver element

Will not be shielded by the ground layer in the multilayer circuit board. Moreover, when design changes are required, only the circuit design of the first circuit board needs to be changed, while the second circuit board and wireless transceiver components can still be used directly without the need Redesign, and vice versa, is a modular design concept, which improves product design flexibility and reduces product design costs. In order to allow your reviewers to further understand and understand the features, objectives, and functions of the present invention, the detailed description with the drawings is as follows:

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Please refer to FIG. 3, which is a preferred real side of the circuit board device of the present invention: a perspective view. In FIG. 3, the circuit board device 300 uses a multi-layer circuit board 330 (hereinafter also referred to as the _ circuit board) and a single-layer circuit board 340 (hereinafter also referred to as the second circuit board two, and The main electronic circuits are respectively provided on the circuit boards 3, 30, 340: the second wireless transmitting and receiving element 320. The multi-layer circuit board 33 and the single-layer circuit board 340 are mutually connected by an electrical connection mechanism 355, and the main element 320 is It is electrically connected by the lines 35 and 36 which are respectively located on the multilayer circuit board 330 and the early-layer circuit board 34. The 'line transmitting and receiving element 320 in the basin is an analog high-frequency wireless signal (Uio 2 7 ", Transceiver, and the main electronic circuit element 310 provides a piece 32 () and functions for wireless communication, such as the conversion of Λ signals, the logical operation of data and data, and other functions such as PCMCIA slots or computers ） 连接 通信 等 # Force this, and it is composed of a variety of electronic components. 1 = circuit; although the preferred embodiment is suitable for circuit boards in line with PCMHA specifications Device 300 to illustrate, however, 苴It should not be used to limit the present invention. It can also be used for two shovels. The circuit board device according to the present invention has a component 320-1 # ^ 2. It has a main electronic circuit component 310 and a wireless receiver. ^ Others The type or standard of the wireless communication device. Example:: It is the circuit board device 300 of the present invention, preferably a solid circuit board circuit board installation & setting 300 is a single-use component 32G on a single layer Electrical ^ 34 "board structure" and the position of the wireless receiving circuit board 340 is not the same as the main electronic 595282

The multilayer circuit board 330 where the circuit element 310 is located is stacked. Since the position of the wireless transceiver element 320 on the single-layer circuit board 34o does not overlap with the multi-layer circuit board 330, where the main electronic circuit element 3110 is located, the evening circuit board 3300 The metal ground layer 5 (which extends along the entire area of the rf circuit board 3 300) does not obscure the signal 500 transmitted and received by the wireless transceiver 20. In addition, the single-layer circuit board 34o does not have a connection + ground layer 510. Therefore, when the wireless transmitting and receiving element 32o transmits and receives wireless signals, #%, the flood number 500 is completely unaffected by the ground layer in all directions or Screen, so the wireless signal transmission and reception quality of the wireless signal 500 of the wireless receiving and receiving element 320 can be greatly improved. / 'Mingling read Figures 5A and 5B, which reveals that it is not intended to apply a row of 49 ° to the electrical connection mechanism of the multi-layer circuit board 330 and the single-layer circuit board 340 of the present invention. Among them, FIG. 5A is a perspective view of a single-layer circuit board 34 and a multilayer circuit = 330, and FIG. 5B is a schematic plan and side view of a single-layer circuit board gw and a multilayer circuit board 330 after being electrically connected. . / As shown in FIG. 5A, a plurality of signal contact points (signai ^ d) 441, 443, and a plurality of pads ( Welding pad) 445, 447. The pair of contacts 441 and 443 can be used for electrical connection between the multilayer circuit board 340 and the early-layer circuit board 340, and the solder pads 445 and 447 on the circuit board 340 and 340 provide soldering bonding Area, so that the circuits J3 3 0, 340 can be combined together to provide the required bonding strength. As shown in Figure 5B, when the multilayer circuit board 33 ° and the single-layer circuit board 34 ° are, . After the completion, the signal contacts 441, 443 and the solder pads 445, 447 will be indicated by 595282 V. Invention description (9) is sandwiched between two circuit boards 340 and 340. , 'The dotted line electrical connection mechanism (w ^ Adlng) is connected to the surface (SMT), embedded (P wide example, the present invention can also choose "λ · · ° (PluSging)" or glued. ⑴ Calling) and other ways to electrically connect the two circuit boards 330, 340. Words from f? To 5β are shown in the figures of some embodiments and their design. The circuit board device 300 of the Ming is mainly used in the mode. The circuit board 33, 34, 80, 31, and 32 for wireless transmission and reception, and the circuit board that carries the main electronic circuit components can be a multi-layer circuit board. The circuit board may be 330, and the wireless transmitting and receiving element is in the present #Ms, is a layer circuit board 340, or even a flat cable. In another embodiment, the multi-layer circuit board carrying the wireless transceiver element 320 ":, another multilayer circuit board without a metal ground layer, and the multi-layer circuit board carrying ^ :: 赉 件 3 2 〇 The number of layers is less than the first and opposite layers, so it still has the advantage of lower cost. In addition, when the Thunder 1 circuit board 3 3 0, 340 is assembled and combined, the position of the wireless transceiver element 32 () on the single-layer 'board 340 does not overlap with the multi-layer circuit board 3 3 0. Therefore, the evening circuit board 3 The ground layer 5 of the 30 will not hinder the signals sent and received by the wireless transceiver 3 2 0. When design changes are required, only one of the circuit boards 330 and 340 needs to be changed, and the electronic components and circuit designs on the other circuit board need not be changed. Therefore, not only the overall production cost of the circuit board device of the present invention is relatively reduced,

595282 V. Description of the Invention (ίο) The signal transmission and reception of components will not be shielded by the ground layer in the multilayer circuit board. Please refer to FIG. 6, which is an exploded perspective view of a circuit board device according to another preferred embodiment of the present invention installed in a wireless network card 600 that complies with the PCMCIA specification. In FIG. 6, the wireless network card 600 includes a multi-layer circuit board 615, one of the main electronic circuit components S10 disposed on the multi-layer circuit board 615, and a flat cable 6 6 0. The internal π-piece structure of a wireless transceiver element 62, which is electrically connected to the multilayer circuit board 615 through the flat cable 66 (), and a bottom panel 630, which is one of the materials that can be penetrated by electromagnetic waves (such as plastic materials), electromagnetic waves An outer shell structure composed of a top cover 6 50 of a non-penetrable material (such as a metal material) and a top plate 64 0 of an electromagnetic wave penetrable material. In the preferred embodiment, the flat cable 66 is used as a connection device to electrically connect the main electronic circuit element 61o and the wireless transceiver element 62. Therefore, the function of the flat cable 660 is substantially equivalent to The aforementioned single-layer circuit board 640 (also referred to as a second circuit board). Say

Among them, the bottom panel 630, the top cover 650, and the top panel 640 each have an engaging structure (including a first engaging structure 63 5, a second engaging structure 6 5 5 and a third engaging structure 645). . The top cover 65 ° and the engaging structure 635 of the bottom panel 63 0 are fitted to each other to fit and position the top cover 65 ° at the side of the bottom panel 630, and the top panel 64 °. The engaging knot 645 and the engaging structure 635 of the bottom panel 630 are fitted together, so that an accommodation space can be formed between the bottom panel 6 30, the top cover 6 50 and the top panel 640. At this time, the position of the wireless transceiving element 620 is generally located in the area formed by the top panel 640 and the bottom panel 630 made of plastic, and the main electrical

595282 V. Description of the invention (11) The sub-circuit device 610 is generally located in the area of the accommodation space formed by the metal cover 65 and the plastic bottom panel 630. Thus, the circuit board device of the present invention can be fixed at a predetermined position in the housing of the wireless network card 600. With the design of this housing structure, the wireless signals transmitted and received by the wireless transmitting and receiving element 6 2 0 of the wireless network card 600 can pass through the plastic top plate 64 and the bottom plate 6 30, and There are no restrictions or obstacles on all sides. The electromagnetic waves generated by the main electronic circuit components 6 1 0 will be shielded by the top cover 6 50 made of metal and the ground layer in the multilayer circuit board 615 and will not leak to the outside. Therefore, by using the circuit board device design of the present invention (that is, the use of the evening circuit board and the single-layer circuit board), when the circuit board clothing of the present invention is placed on a wireless network card, the wireless network The housing structure of Luca 600 will only need three components, namely the bottom plate 63 of plastic material, the top cover 650 of metal material, and the top plate 64 of plastic material. Those who perform combined positioning, prevent main electromagnetic interference (EMI), and provide the function of allowing wireless transceiver elements 62 to send and receive wireless signals. Placed in: Examination of Fig. 7, which is a perspective exploded view of another embodiment of the circuit board device of the present invention installed at ::: f network card 7 ". The components shown are the same Or similar components in FIG. 3 and FIG. 6 without the same components will be given the same component names and will not be described in detail.] Vulgar name% ^ 'Wireless network in the embodiment shown in FIG. 7 Luca 7 circuit board 330 is electrically connected to the single-layer circuit board 34. The internal structure of the two elements (circuit board ,. The main electronics set by the original SSE;: = knot

Page 15 595282 V. Description of the invention (12) 3 1 0 and wireless transceiver element 3 2 0 (not shown in this figure), and the bottom surface 1 〇a, the top cover 2 〇a, and the top panel 3 0 a External shell structure. The & FIG. 7 embodiment is different from the foregoing embodiment in that the computer structure 7a is at the corresponding position of the bottom panel 10a, the top cover 20a, the multilayer circuit board 33o, and the single layer 340. There are several screw holes 丨 9, 29, ^. The plurality of screws 50 are locked in from the top cover 20a side toward the bottom panel 10a and removed. It can complete the combined positioning of the top cover 20a side and the bottom panel 10a, and can also directly sandwich the single-layer circuit board 34G and the multi-layer circuit board 33G with the middle space of the storage space and the top panel 308. The circuit board m formed between the circuit board and the bottom panel is provided by the present invention, which is suitable for wireless communication devices. It is a kind of electrical components, and the wireless receiving and receiving unit -1 is provided by a single-layer circuit board without a ground layer. The placement of other major electronic circuit components can hinder: weak place :: t signal! Will be affected by the ground layer of multi-layer circuit boards. The thunderstorm δ inch of the present invention, because the cost of a single-layer circuit board is lower, the overall production cost of the circuit board (multi-layer It) is lower. Both the board and the single-layer circuit board) can be modularized. When the function of the device is changed, only one of the circuit boards needs to be changed (for example, the single-layer circuit board is replaced by a different multi-layer circuit board design). If you need to continue to change = layer circuit board and wireless transceiver components on it), you can achieve cost-effectiveness without increasing the flexibility of use and reduce the design and manufacture. The above-mentioned limitations of the present invention are only limited to the present invention. In the preferred embodiment, the range cannot be used. That is to say, any changes and modifications made equally according to the scope of the patent application of the present invention 595282 V. Description (13) of the invention will still be within the spirit of the present invention and do not depart from the spirit and scope of the invention, so they should be regarded as the present invention. Further implementation status of the invention. 595282 Schematic description [Schematic illustration] Brother 1 is a three-dimensional view of a device you are familiar with; a wireless network card circuit board of a circuit board. Figure 2 is a schematic diagram of a conventional wireless network structure. ; Section 3 of the used circuit board is a perspective view of one side of the circuit of the present invention; and Section 4 of the preferred embodiment is a schematic view of the section direction of the example of the present invention as shown in FIG. 3 The preferred implementation of the board device ^ is a perspective view of the single-layer circuit board of the present invention and the circuit board of Fig. 3 in FIG. 5B is a schematic plan and side view of the single-layer circuit board of the present invention after connection. The layer circuit board is electrically connected to a wireless network card. FIG. 6 is an exploded perspective view of another preferred embodiment of the circuit board device configuration of the present invention; FIG. 7 of the wireless network card is the present invention. An exploded perspective view of another embodiment in which the circuit board device is disposed. ; Description of drawing number: 29, 49, 19: screw holes 5 0: screws 100, 300: circuit board device 6 0 0: wireless network card 110 ^ 310 λ61〇 · φ φ φ υ • Main electronic circuit components 595282 Schematic Brief description 1 2 0, 3 2 0, 6 2 0: wireless transceiver 130, 330, 615: multilayer circuit board 1 3 1: lines 135, 350, 360: lines 2 0 0, 5 0 0: signal 2 5 0 : Ground layer 3 4 0: Single-layer circuit board 4 4 1, 4 4 3: Signal contacts 445, 447: Solder pads

4 9 0: Electrical connection mechanism 630, 10a: Bottom panel 6 3 5, 6, 6 4 5, 6 5 5: Engagement structure 640, 3 0a: Top cover 6 5 0, 2 0 a: Top panel 6 6 0: Flat cable 7a: wireless network card

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Claims (1)

^ 5282 Six patent application scopes: one circuit, the first electricity, the main electricity-the second electricity wirelessly receives the first board device circuit board; the sub circuit board, the component circuit board • if the patent application scope, the circuit board is a multi-board Area extension distribution 3 · If the patent application circuit board is a layer of a different circuit board 4 · If the patent application scope circuit board is a single layer 5 · If the patent application scope circuit board is a flat row like the patent application circuit The board and the second such as the scope of the patent application 6. 7. The connection mechanism at least 8 · If the patent scope board device is set at 9 · The patent scope board device is set at, including at least: The second general basket is a circuit board; it is electrically connected to the circuit board of the brother, and is arranged at the position of the second and second connection and overlapping. The circuit board is located on a circuit board that is not laminated with the circuit board described in item ^ and further has a metal ground layer of /, and the entire circuit board device described in the second circuit item has metal connection. The ground layer is +, and is the first in the middle of the year; ι is less than the "::: layer electricity: board, and the first circuit board. The board name is set, where the second: 1. The circuit board device described in the item, wherein The circuit board arrangement described in the second item, wherein the first: the circuit boards are combined with each other by an -electrical connection mechanism. = The circuit board device described in the item 6, wherein the electrical device has a plurality of signal contacts and Several solder pads. The circuit board device according to the item, wherein the circuit is in a wireless communication device. The circuit board device according to the item, wherein the circuit is in a wireless network card conforming to the PCMCIA regulations. 6. The scope of patent application 10 The circuit board device according to item 9 of the scope of patent application, wherein the wireless network card includes at least a bottom panel with a first engaging structure; a top cover with a A second engaging structure, the second engaging structure of the top cover and the first engaging structure of the bottom panel can be fitted into each other to combine and position the top cover on the bottom panel; and a top panel With a third engaging structure, the third engaging structure of the top panel and the third engaging structure of the bottom panel can be fitted into each other, and formed between the top panel, the top cover and the bottom panel An accommodating space; wherein the first circuit board and the main electronic circuit element are generally located between the top cover and the bottom panel, and the wireless transceiver element is generally located between the top panel and the bottom panel; between. 11. The circuit board device as described in the scope of application for patent item No. 丨 0, wherein the bottom panel and the top panel are made of electromagnetic wave-permeable material, and the top cover is made of electromagnetic wave-impermeable material. Made of material. τ 1 2. A circuit board device, including at least: a first circuit board; a main electronic circuit element, which is disposed on the first circuit board; a wireless transceiver element; and a connection device for electrical connection The first circuit board and the wireless transceiving element, so that the position of the wireless transceiving element is not substantially violent to the first circuit board. And 1 3 · If the scope of patent application is the first! The circuit board device described in item 2, wherein the connection 595282 and the patent application fan connection device is a flat cable. 14. The circuit board device according to item 2 of the patent application scope, wherein the connection device is a second circuit board, the second circuit board is electrically connected to the first circuit board, and the wireless transceiver element It is arranged on the second circuit board at a position which does not overlap with the first circuit board. 1 5. The circuit board device according to item 2 of the patent application scope, wherein the first circuit board is a multilayer circuit board and further has a metal ground layer extending along the entire area of the first circuit board. 16 · The circuit board device according to item 2 of the scope of the patent application, wherein the connection device is a multilayer circuit board without a metal ground layer, and the number of layers of the multilayer circuit board of the connection device is less than The number of layers of the first circuit board. 17. The circuit board device according to item 12 of the scope of patent application, wherein the circuit board device is arranged in a wireless communication device. ~ 1 8. The circuit board device described in item 12 of the scope of patent application, wherein the circuit board device is installed in a wireless network that complies with the PCMCIA specification ^ "Medium 0 19. The circuit board device according to item 18 of the scope of patent application, wherein the wireless network card includes at least: a bottom panel having a first engaging structure; a top cover having a second engaging Structure, the second engaging structure of the top cover and the first engaging structure of the bottom panel may be engaged with each other to combine and position the top cover on the bottom panel; and 595282 VI. Patent application scope A top panel having a third engaging structure, the third engaging structure of the top panel and the first engaging structure of the bottom panel can be fitted into each other, and the top panel An accommodation space is formed between the top cover and the bottom panel; wherein the first circuit board and the main electronic circuit element are generally located between the top cover and the bottom panel, and the wireless transceiver element is generally The upper is located between the top panel and the bottom panel. 2 〇. The circuit board device described in item 19 of the scope of patent application, wherein the bottom panel and the top panel are made of a material that can be penetrated by electromagnetic waves, and the top cover is made of a material that cannot be penetrated by electromagnetic waves Made of. Page 23