201230941 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種阻斷電磁波用防護罩固定夾，其用於在 上述印刷電路基板上固定覆蓋内置於印刷電路基板的如 半導體等電子部件的防護罩，具體涉及一種阻斷電磁波 用防護罩固定夾，與印刷電路基板接觸而點合的基座 的底面平坦地形成而增大緊貼面積’並且在基座的上部 形成可夾入結合防護罩的***端部的槽’從而將電磁波 遮蔽效果及簡單構成防護罩的接地狀態而通過接地狀態 ^ 的電磁波遮蔽效果實現最大化，而且在***夾具的部位 不進行電鍍處理，而將接觸阻抗最小化，從而具有可將 電磁波遮蔽效果最大化的結構。 【先前技術】 [0002] 通常電磁波被有益使用於無線通信或雷達等，但也可對 電子器械的運轉起負面影響，這種現象稱作電磁波幹擾 (EMI: Electro Magnetic Interference)現象，這201230941 6. TECHNOLOGICAL FIELD OF THE INVENTION [0001] The present invention relates to a protective cover fixing clip for blocking electromagnetic waves, which is used for fixedly covering an electronic device such as a semiconductor built in a printed circuit board on the printed circuit board. The protective cover of the component, in particular, a protective clip for blocking electromagnetic waves, the bottom surface of the base which is in contact with the printed circuit board is flatly formed to increase the contact area' and can be sandwiched in the upper part of the base The groove of the insertion end of the shield is combined to maximize the shielding effect of the electromagnetic wave and the grounding state of the shield, and the electromagnetic wave shielding effect of the grounding state is maximized, and the plating is not performed at the portion where the clamp is inserted, but the contact is made. The impedance is minimized to have a structure that maximizes the shielding effect of electromagnetic waves. [Prior Art] [0002] Generally, electromagnetic waves are favorably used for wireless communication or radar, etc., but can also negatively affect the operation of electronic devices. This phenomenon is called Electromagnetic Interference (EMI) phenomenon.
種EMI不僅産生電器的通訊障礙信號而且也是對人體有害 的要素。 [〇〇〇3]從而’最近將内置於電器内部的印刷電路基板的半導體 元件等電子部件用所定的防護罩覆蓋，而阻斷從上述電 子部件産生的EMI ’從而不僅不能對自身電器産生影響， 而且對其他電器的運轉也不能産生影響。 [_這種防護罩通常爲了”防護罩的觀，通過接合於印 刷電路基板的阻斷電罐波用防護罩固定夾而設置於印刷 電路基板上。 1002061073-0 100135999 表轉細1 * 3叫15頁 201230941 [0005] [0006] [0007] [0008] [0009] [0010] [0011] 乂下4考附圖簡單說明現有阻斷電磁波用防護罩固定夾 〇 圖6爲現有阻斷電磁波用防護罩固定夾的剖視圖。如圖6 ’現有的阻斷電磁波用防護罩固定夾（1)不致由4個部分 構成，包括與印刷電路基板接觸的狀態粘合的多個固定 4(2)、以連接部（5)爲媒介而由上方向與固定部（？）隔 離形成的基座⑷、使上述基座⑷的側面垂直曲折而 在固定部（2)之間形成的夾緊部（3)。 在此，現有阻斷電磁波用防護罩固定夾（1)通常通過表面 裝配技術（Surface Mount Techn〇1〇gy)裝備的自動焊 接工序而完成。 這種現有阻斷電磁波用防護罩固定夾（1)通過表面裝配技 術裝備的噴嘴真空吸附’安置於在印刷電路基板的表面 經過遮護處理的焊糊上，自動枯合固定。 此時，現有阻斷電财㈣護罩固定夾⑴爲了枯合於焊 糊，整體上經過鎳/錫電鍍處理而形成。 但因爲這種鎳/錫電鍍處理，可使焊糊粘在基座（4)的上 部，因此通過連接部（5)而使基座（4)與固定部（2)隔離 形成。 但這樣引發了從連接部（5)與基座（4)的隔離空間漏出電 磁波的問題。 並且，現有阻斷電磁波用防護罩固定夾（1)用夾緊部（3) 固疋上述防濩罩時，防護罩的***端部安置於上述基座 100135999 表單編號A0101 第4頁/共15頁 1002061073-0 [0012] 201230941 (4)的上部，這時因基座（4)與防護罩的***端部之間 形成的細微的間隔而使電磁波漏出，並且在固定部（2 )的 上部形成很大的空間，而大大降低電磁波的遮蔽效果。 [0013] 並且，現有阻斷電磁波用防護罩固定夾（1)因連接部（5) 而使防護罩的整個高度變高，因此安全性大大降低。 【發明内容】 [0014] 本發明爲了解決上述問題而研製，本發明的第一目的爲 提供阻斷電磁波用防護罩固定夾，在基座的上部形成插 入結合防護罩的***端部的槽，從而具有可將電磁波遮 蔽效果最大化的結構。 [0015] 並且，本發明的第二目的爲提供一種阻斷電磁波用防護 罩固定夾，與印刷電路基板接觸而粘合的基座的底面形 成錄/錫電鍍層，而使焊糊無法侵襲基座的上部，從而使 防護罩與夾具的接觸阻抗最小化，以提高遮蔽效果；並 且使基座的底面平坦地形成，而增大了與印刷電路基板 之間的緊貼面積，從而將電磁波的遮蔽效果最大化，並 且可將防護罩的整體高度變低，從而更加穩定地固定防 護罩。 [0016] 本發明的技術方案在於： [0017] 爲了達到上述目的，本發明的特徵在於，第一發明涉及 在上述印刷電路基板固定用於覆蓋内置於印刷電路基板 的電子部件的防護罩的阻斷電磁波用防護罩固定夾，包 括基座，其與上述印刷電路基板接觸而粘合；一對彈性 片，其爲了以鉗子形態夾緊上述防護罩的側壁，而向上 100135999 表單編號A0101 第5頁/共15頁 1002061073-0 201230941 ;及槽，其在 而使防護罩的***端 延長曲折’並在上述基座的兩側相對形成 上述基座的上部中央由縱向形成， 部夾入接合。 [0018] 第二發明是，優選地，在第一 面還包括電鍍鎳/錫的電鍍層 發明令上述基座（10)的底 [0019] [0020] [0021] [0022] 第三發明是，優選地’在第—發明中上述各個彈性片包 括垂直部，其由與基座垂直方向90。曲折形成；加壓部 上述垂直部向内側彎曲而對防護罩的側壁進行壓迫；導 引P ’、以上述加壓部爲基准而向外側擴散張開；上述 導引部的張開角度（0)爲75。至9〇。。 第四發明是’優選地，在第—發明中上述槽⑴）使基座 (10)的中央部分向下彎曲而形成。 【實施方式】 以下參考附圖詳細說明本發明的阻斷電磁波用防護罩固 定夾。 圖1爲本發明的阻斷電磁波用防護罩固定夾的使用狀態圖 ’圖2爲本發明的阻斷電磁波用防護罩固定夾的剖視圖； 圖3爲圖2的底面剖視圖；圖4爲圖示在阻斷電磁波用防護 罩固定夾上結合防護罩的狀態的截面圖；圖5爲圖示本發 明的阻斷電磁波用防護罩固定夾的另一實施例的槽的底 面剖視圖。 如圖1所示’本發明涉及用於在上述印刷電路基板（40) 上固定覆蓋内置於印刷電路基板（40)的如半導體等電 子部件（6 0 )的防護罩（5 0 )的阻斷電磁波用防護罩固 100135999 表單編號A0101 第6頁/共15頁 1002061073-0 [0023] 201230941 [0024] 定夾（30)，具體涉及一種阻斷電磁波用防護罩固定央 (30) ’與印刷電路基板（4〇)接觸而粘合的基座（1〇 )的底面平坦地形成而增大緊貼面積，並且具有在基座 (10) 的上部可夾入結合防護罩（5〇)的***端部的槽 (11) ，從而可最大化電磁波遮蔽效果。 這種阻斷電磁波用防護罩固定夾（30)，如圖2至圖4 所示’大致可分爲3個部分，包括基座（1〇)、彈性片 (20)、槽（11)。 Q [0025] 在此，上述基座（10)爲了粘合固定阻斷電磁波用防護罩 固定夾（30)時，不使在印刷電路基板（4〇)的表面經過 遮護處理的焊糊（焊料）侵襲基座（10)的上部，從而底面 還包括電鍍鎳/錫的電鍍層（12)。 [0026] 在此，電鍵層（12)是爲了使焊糊牢固地枯合到由鋼材質 形成的阻斷電磁波用防護罩固定夾（30)，並且使未進行 电镀的基座（10)的上部不沾上焊糊（41)。 r、 [0027] Ο 從而’上述基座（1〇)因除底面之外的上部不沾上焊糊 (41)，因此具有可使基座（10)的整個底面平坦地形成的 結構。 [0028] 即，上述基座（1〇)可以使整個底面與印刷電路基板（4〇) 接觸的狀態粘合，因此可增大與上述印刷電路基板（4〇) 之間的接觸面積’並降低防護罩（5〇)的整個高度，從而 最大化阻斷電磁波的效果。 [0029] 並且，本發明的電鍍層（12)只是在基座（1〇)的底面形成 100135999 ，而使非電鍍的彈性片與防護罩之間的接觸阻抗最小化 表單編號娜1 第7頁/共15頁 1〇〇2__〇 201230941 [0030] [0031] [0032] ’並將阻斷電磁波的效果最大化。 以下，參考[表1]將本發明的非電鍍的彈性片與防護罩之 間的接觸阻抗和現有的電鍍的彈性片與防護罩之間的接 觸阻抗進行了 3次試驗而比較。 【表1】 本發明的非電錄彈 現有的電鍍的 性片與防護罩之間 片與防護罩之間的 的接觸阻抗 接觸阻抗 1次 0.036 Λ —- 0.5 2次 0.036 ~~~，-— 0.4 3次 0. 038 '——~~—. 0. 7 如[表1 ]中3次對接觸阻抗進行了試驗，本發明的非電鍍 彈性片與防護罩之間的接觸阻抗比現有的進行電鍍的彈 f生片與防護罩之間的接觸阻抗低1 〇倍以上。 [0033] [0034] 這種接觸阻抗越低，電磁波的遮蔽效果就越大，從而可 知曉本發明的電磁波阻斷效果非常大。 並且，上述彈性片（20)爲了可將上述防護罩（5〇)的側壁 以鉗子形態夾緊，由上述基座（1〇)的兩側相對向上方延 長曲折形成。這種上述彈性片（2〇)沿著上述基座（1〇) 的纵向形成壹對，從而可更加穩固地夾緊防護罩（5〇)的 側面。 [0035] 100135999 在此’上述各彈性片（20)包括垂直部（21)，其與基座 U0)由垂直方向90。曲折；加壓部（22) ’其上述垂直部 (21)向内側彎曲而對防護罩（5〇)的側面進行壓迫：導引 表單編號Αοιοι 第8頁/共15頁 1002061073-0 201230941 [0036] [0037] Ο [0038] [0039]EMI not only generates electrical communication obstacle signals but is also an element harmful to the human body. [〇〇〇3] Thus, electronic components such as semiconductor elements of a printed circuit board built in an electric appliance have recently been covered with a predetermined protective cover, and EMI generated from the above electronic components has been blocked, thereby not only affecting its own electrical appliances. And it does not affect the operation of other electrical appliances. [_This type of protective cover is usually provided on the printed circuit board by the protective cover fixing clip for blocking the can wave wave bonded to the printed circuit board. 1002061073-0 100135999 Table turn fine 1 * 3 [0010] [0010] [0010] [0011] [0011] [0011] The following is a brief description of the conventional protective cover for blocking electromagnetic waves. FIG. 6 is a conventional method for blocking electromagnetic waves. A cross-sectional view of the shield fixing clip, as shown in Fig. 6 'The conventional shield electromagnetic shield retaining clip (1) is not composed of four parts, and includes a plurality of fixed 4(2) bonded in a state of being in contact with the printed circuit board, a susceptor (4) formed by separating the upper portion from the fixing portion (?) by a connecting portion (5), and a clamping portion formed between the fixing portion (2) by bending the side surface of the susceptor (4) vertically (3) Here, the conventional shield retaining clip for blocking electromagnetic waves (1) is usually completed by an automatic soldering process equipped with a surface mount technology (Surface Mount Techn〇1〇gy). (1) Spray equipped by surface assembly technology The vacuum adsorption is placed on the solder paste that has been shielded on the surface of the printed circuit board, and is automatically fixed and fixed. At this time, the existing blocking power (4) shield fixing clip (1) passes through the solder paste as a whole, and passes through the nickel. / tin plating treatment is formed. However, because of this nickel/tin plating treatment, the solder paste can be adhered to the upper portion of the susceptor (4), so the pedestal (4) and the fixing portion (2) are connected through the connecting portion (5) The isolation is formed. However, this causes a problem of leakage of electromagnetic waves from the isolation space between the connection portion (5) and the susceptor (4). Moreover, the conventional shield for protecting the electromagnetic wave (1) is fixed by the clamp portion (3).疋 When the tamper cover is used, the insertion end of the hood is placed on the pedestal 100135999 Form No. A0101 Page 4 / Total 15 Page 1002061073-0 [0012] The upper part of 201230941 (4), at this time due to the pedestal (4) The fine spacing formed between the insertion ends of the shield causes electromagnetic waves to leak out, and a large space is formed in the upper portion of the fixing portion (2), thereby greatly reducing the shielding effect of electromagnetic waves. [0013] Moreover, the existing blocking electromagnetic waves Use the protective cover to fix the clip (1) due to the connection (5) The entire height of the protective cover is increased, so that the safety is greatly reduced. [Invention] The present invention has been made to solve the above problems, and a first object of the present invention is to provide a protective cover for blocking electromagnetic waves. A groove into which the insertion end portion of the protective cover is inserted is formed in the upper portion of the base, thereby having a structure capable of maximizing the electromagnetic wave shielding effect. [0015] Further, a second object of the present invention is to provide a shield for blocking electromagnetic waves. a bottom surface of the pedestal that is bonded to the printed circuit board to form a recording/tin plating layer, so that the solder paste cannot invade the upper portion of the pedestal, thereby minimizing the contact resistance between the hood and the jig to improve the shielding effect; And the bottom surface of the pedestal is formed flat, and the contact area with the printed circuit board is increased, thereby maximizing the shielding effect of electromagnetic waves, and the overall height of the protective cover can be lowered to be more stably fixed. protecting mask. [0016] The present invention is directed to: [0017] In order to achieve the above object, a first aspect of the invention relates to a resistor for fixing a shield for covering an electronic component built in a printed circuit board on the printed circuit board. The electromagnetic wave protection cover fixing clip includes a base which is in contact with the printed circuit board for bonding; and a pair of elastic pieces for clamping the side wall of the protective cover in the form of a pliers upwards 100135999 Form No. A0101 Page 5 A total of 15 pages 1002061073-0 201230941; and a groove for extending the insertion end of the shield to be bent and formed in the longitudinal direction at the center of the upper portion of the base opposite to the base formed on the base, and the portion is sandwiched. [0018] According to a second aspect of the invention, preferably, the first layer further comprises an electroplated layer of nickel/tin plating to insulate the bottom of the susceptor (10). [0020] [0022] The third invention is Preferably, each of the above elastic sheets includes a vertical portion which is 90 in a direction perpendicular to the base. The meandering portion of the pressing portion is bent inward to press the side wall of the shield; the guide P' is diffused outwardly on the basis of the pressing portion; and the opening angle of the guiding portion is (0) ) is 75. To 9 〇. . According to a fourth invention, it is preferable that the groove (1) in the first invention is formed by bending a central portion of the base (10) downward. [Embodiment] Hereinafter, a shield fixing clip for blocking electromagnetic waves of the present invention will be described in detail with reference to the accompanying drawings. 1 is a view showing a state in which a protective cover for an electromagnetic wave blocking clip is used in the present invention. FIG. 2 is a cross-sectional view showing a protective clip for blocking electromagnetic waves according to the present invention; FIG. 3 is a bottom cross-sectional view of FIG. 2; A cross-sectional view showing a state in which a shield is attached to a shield holder for blocking electromagnetic waves; and FIG. 5 is a bottom cross-sectional view showing a groove of another embodiment of the shield holder for blocking electromagnetic waves of the present invention. As shown in FIG. 1, the present invention relates to blocking of a protective cover (50) for covering an electronic component (60) such as a semiconductor built in a printed circuit board (40) on the above printed circuit board (40). Electromagnetic wave protection cover 100135999 Form No. A0101 Page 6 / Total 15 page 1002061073-0 [0023] 201230941 [0024] Fixed clamp (30), specifically related to a shielded electromagnetic wave shield fixed central (30) 'and printed circuit The bottom surface of the base (1 〇) which is bonded and bonded by the substrate is flatly formed to increase the adhesion area, and has an insertion in which the joint shield (5 〇) can be sandwiched in the upper portion of the susceptor (10) The end of the groove (11), so as to maximize the electromagnetic wave shielding effect. The shield retaining clip (30) for blocking electromagnetic waves, as shown in Figs. 2 to 4, can be roughly divided into three parts, including a base (1 inch), an elastic piece (20), and a groove (11). [0025] Here, in the case where the susceptor (10) for blocking and blocking the electromagnetic wave is fixed and fixed, the susceptor (10) does not pass the solder paste on the surface of the printed circuit board (4). The solder) attacks the upper portion of the susceptor (10) such that the bottom surface further includes an electroplated nickel/tin plating layer (12). Here, the electric-bond layer (12) is for the purpose of causing the solder paste to be firmly adhered to the shield-protecting clip (30) for blocking electromagnetic waves formed of a steel material, and for the pedestal (10) which is not plated. The upper part is not covered with solder paste (41). r, [0027] The above-mentioned susceptor (1 〇) has a structure in which the entire bottom surface of the susceptor (10) can be formed flat without the solder paste (41) being applied to the upper portion except the bottom surface. [0028] In other words, the susceptor (1 〇) can bond the entire bottom surface in contact with the printed circuit board (4 〇), so that the contact area with the printed circuit board (4 〇) can be increased. Reduce the overall height of the shield (5〇) to maximize the effect of blocking electromagnetic waves. [0029] Moreover, the plating layer (12) of the present invention forms only 100135999 on the bottom surface of the susceptor, thereby minimizing the contact resistance between the electroless plate and the shield. Form No. 1 Page 7 / Total 15 pages 1 〇〇 2__ 〇 201230941 [0030] [0032] 'And maximize the effect of blocking electromagnetic waves. Hereinafter, the contact resistance between the electroless plated elastic sheet of the present invention and the shield and the contact resistance between the conventionally plated elastic sheet and the shield were compared three times with reference to [Table 1]. [Table 1] The contact impedance contact resistance between the sheet and the shield between the existing electroplated sheet and the shield of the present invention is 0.036 Λ - - 0.5 2 times 0.036 ~~~, - 0.4 3 times 0. 038 '——~~—. 0. 7 The contact resistance was tested three times in [Table 1], and the contact resistance between the non-electroplated elastic sheet of the present invention and the shield was compared with the prior art. The contact resistance between the plated bomb and the shield is less than 1〇. [0034] The lower the contact impedance is, the larger the shielding effect of electromagnetic waves is, and it is known that the electromagnetic wave blocking effect of the present invention is very large. Further, the elastic piece (20) is formed by folding the side walls of the protective cover (5 inches) in a pliers shape, and is formed by bending the both sides of the base (1) upward and upward. The above-mentioned elastic piece (2 turns) forms a pair of ridges in the longitudinal direction of the above-mentioned base (1 ,), so that the side surface of the shield (5 〇) can be more firmly clamped. [0035] 100135999 Here, each of the above elastic sheets (20) includes a vertical portion (21) which is perpendicular to the base U0) by 90. Zigzag; pressurizing portion (22) 'The vertical portion (21) is bent inward to press the side of the shield (5〇): guide form number Αοιοι Page 8 of 15 page 1002061073-0 201230941 [0036 [0037] [0039] [0039]
[0040] [0041] 部（2 3 ) ’其以上述加壓部（2 2 )爲基准而向外側擴散張開 〇 此種結構通過導引部（23)可使防護罩（50)容易進入，並 通過加壓部（22)壓迫防護罩（5〇)的側壁，從而可防止防 護罩（50)從彈性片（20)脫離。 在此’優選地，上述導引部（23)張開的角度（0)爲75。 至90°。這是因爲如果上述導引部（23)的角度爲9〇。以上 時’***防護罩（50)時，可對彈性片（20)施加力量，因 此可使彈性片（20)發生變形，因此不適宜，如果是75。以 下，難以***防護罩（5 〇 )，因此不適宜。 並且，上述槽（11)在基座（丨〇)的上部中央由縱向形成， 因此可使防護罩（50)的***端部夾入接合。 這種結構將防護罩（50)的***端部***於槽（u)，而與 防護罩（50)的外部完全遮蔽，從而可進一步增強電磁波 的阻斷。這是因爲防護罩（5〇)的***端部與槽（I〗）進行 面接觸而成爲可能。 並且，如上述圖5所示，明顯地，上述槽（11)可使基座 (10)的中央部分向下曲折而形成。 此種結構對槽（11)給予彈性，從而使與防護罩（5 0 )之間 的結合更加穩固。 本發明的權利並不局限於上述說明的實施例，而根據申 凊專利範圍的記載而被定義，本發明領域中具有通常知 識者理所當然地可在申請專利範圍記載的權利範圍内進 100135999 表單編號A0101 第9頁/共15頁 1002061073-0 [0042] 201230941 行各種變形和改造。 [0043] 本發明的有益效果在於： [0044] 本發明的阻斷電磁波用防護罩固定夾具有使防護罩的插 入端部***接合於基座上部的槽，從而可最大化電磁波 遮蔽效果。 [0045] 並且，與印刷電路基板接觸而粘合的基座底面形成鎳/錫 電鍍層，而使焊糊無法侵襲基座的上部，從而使防護罩 與夾具的接觸阻抗最小化，以提高遮蔽效果；並且使基 座的底面平坦地形成，而增大了與印刷電路基板之間的 緊貼面積，從而將電磁波的遮蔽效果最大化，並且可將 防護罩的整體高度變低，從而更加穩定地固定防護罩。 【圖式簡單說明】 [0046] 圖1爲本發明的阻斷電磁波用防護罩固定夾的使用狀態圖 ， [0047] 圖2爲本發明的阻斷電磁波用防護罩固定夾的剖視圖； [0048] 圖3爲圖2的底面剖視圖； [0049] 圖4爲圖示在阻斷電磁波用防護罩固定夾與防護罩結合的 狀態的截面圖； [0050] 圖5爲圖示本發明的阻斷電磁波用防護罩固定夾的另一實 施例的槽的底面剖視圖； [0051] 圖6爲現有阻斷電磁波用防護罩固定夾的剖視圖。 【主要元件符號說明】 [0052] 1現有阻斷電磁波用防護罩固定夾 100135999 表單編號A0101 第10頁/共15頁 1002061073-0 201230941[0041] The portion (2 3 ) 'is diffused outwardly with reference to the pressurizing portion (2 2 ). Such a structure allows the shield (50) to be easily accessed through the guiding portion (23). And pressing the side wall of the shield (5〇) by the pressurizing portion (22), thereby preventing the shield (50) from being detached from the elastic piece (20). Here, it is preferable that the angle (0) at which the above-described guide portion (23) is opened is 75. To 90°. This is because if the angle of the above-described guide portion (23) is 9 〇. When the protective cover (50) is inserted as above, a force can be applied to the elastic piece (20), so that the elastic piece (20) can be deformed, which is not preferable if it is 75. It is difficult to insert a protective cover (5 〇) below, so it is not suitable. Further, the groove (11) is formed in the longitudinal direction at the center of the upper portion of the susceptor, so that the insertion end portion of the shield (50) can be sandwiched. This structure inserts the insertion end of the shield (50) into the groove (u) and is completely shielded from the outside of the shield (50), thereby further enhancing the blocking of electromagnetic waves. This is because the insertion end of the shield (5〇) is in surface contact with the groove (I). Further, as shown in Fig. 5 described above, it is apparent that the groove (11) can be formed by bending the central portion of the base (10) downward. This configuration imparts elasticity to the groove (11) to make the bond with the shield (50) more stable. The present invention is not limited to the above-described embodiments, but is defined in accordance with the description of the scope of the claims, and those having ordinary knowledge in the field of the invention can of course enter the form number 100135999 within the scope of the claims. A0101 Page 9 of 15 1002061073-0 [0042] 201230941 Various variants and modifications. [0044] The present invention has an advantageous effect of: [0044] The shield shielding clip for electromagnetic wave blocking of the present invention has a groove for inserting the insertion end portion of the shield into the upper portion of the base, thereby maximizing the electromagnetic wave shielding effect. [0045] Further, a nickel/tin plating layer is formed on the bottom surface of the base which is bonded to the printed circuit board, so that the solder paste cannot invade the upper portion of the susceptor, thereby minimizing the contact resistance between the shield and the jig to improve the shielding. Effect; and the bottom surface of the pedestal is formed flat, thereby increasing the adhesion area with the printed circuit board, thereby maximizing the shielding effect of electromagnetic waves, and lowering the overall height of the hood, thereby being more stable Secure the cover. BRIEF DESCRIPTION OF THE DRAWINGS [0046] FIG. 1 is a view showing a state of use of a shield clip for blocking electromagnetic waves according to the present invention, and FIG. 2 is a cross-sectional view of a shield clip for blocking electromagnetic waves according to the present invention; [0048] 3 is a cross-sectional view of the bottom surface of FIG. 2; [0049] FIG. 4 is a cross-sectional view showing a state in which a shield fixing clip for blocking electromagnetic waves is combined with a shield; [0050] FIG. 5 is a block diagram illustrating the present invention. A bottom cross-sectional view of a groove of another embodiment of the shield holder for electromagnetic waves; [0051] FIG. 6 is a cross-sectional view of a conventional shield for blocking electromagnetic waves. [Description of main component symbols] [0052] 1 Existing protective cover for blocking electromagnetic waves 100135999 Form No. A0101 Page 10 of 15 1002061073-0 201230941
[0053] 2 固定部 [0054] 3 夾緊部 [0055] 4 基座 [0056] 5連接部 [0057] 10 基座 [0058] 11 槽 [0059] 12 電鍍層 [0060] 20 彈性片 [0061] 21 垂直部 [0062] 22 加壓部 [0063] 23 導引部 [0064] 30 阻斷電磁波用防護罩固定夾 [0065] 40 印刷電路基板 [0066] 41 焊糊 [0067] 50 防護罩 [0068] 60 電子部件 100135999 表單編號A0101 第11頁/共15頁 1002061073-02 fixing portion [0054] 3 clamping portion [0055] 4 base [0056] 5 connecting portion [0057] 10 base [0058] 11 slot [0059] 12 plating layer [0060] 20 elastic sheet [0061 21 Vertical part [0062] 22 Pressurizing part [0063] 23 Guide part [0064] 30 Blocking shield for electromagnetic wave protection [0065] 40 Printed circuit board [0066] 41 Solder paste [0067] 50 Shield [ 0068] 60 Electronic components 100135999 Form number A0101 Page 11 of 15 1002061073-0