550386550386
【發明領域】 本發明是有關於一種高頻訊號之測點設置方法，特別 (請先M.讀背面之注意事項寫本頁) 是指-種可使測點設置達百分之百且不致造成高頻訊號失 真的高頻訊號之測點設置方法。 儿 5 【習知技藝說明】 由於目前CPU的處理速度越來越快，已達數百甚至上 千MHz的階段，較以往的處理速度加快許多，而顯然已是 屬於高頻訊號的範疇，然這樣的高頻訊號傳輸對於設計硬 體，如印刷電路板的工程師而言，卻是一項非常嚴厲的挑 10戰。專就在印刷電路板上加置做為生產測試的測點來說， 如苐圖所示，以往在印刷電路板1上加測點的方式是利 用由印刷電路板1之訊號線10上的貫孔u拉出一線段12 後再於該線段12終端設置一測試墊13做為測點。然而， 經濟部智慧財產局員工消費合作社印製 由於印刷電路板1上的線路集積度越來越高，且在印刷電 15 路板1上線路較密集的區域，這樣的做法，不但無法在每 一訊號線10上設置測點（即測點設置率無法達到百分之 百）’以致在生產過程中因無法量測每一訊號而造成不良品 之產生，而且，在於測試高頻訊號時，由於該另外拉出的 線段12會產生所謂的天線效應，而干擾到在鄰近訊號線上 20傳輸的高頻訊號，使高頻訊號出現失真，並影響到訊號傳 輸的品質。 【發明概要】 因此，本發明之目的，即在提供一種防止高頻訊號失 真並可達到百分之百測點設置率的高頻訊號之測點設置方 第4頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 2550386 A7 五、發明說明（ 法。 於是，本發明高頻訊號之測點設置方法是在一印刷 電路板之零件接腳墊上貫設有一將該接腳墊與印刷電 路板月面之一測試墊連接的貫孔，以利用該測試墊做為 5同頻汛號之測點，而達到避免高頻訊號失真及測點設置 率達百分之百的功效。 【囷式之簡單說明】 本發明之其他特徵及優點，在以下配合參考圖式之較 佳實施例的詳細說明中，將可清楚的明白，在圖式中： 1〇 第一圖是顯示習知的一種測點設置方法； 第二圖是顯示本發明一較佳實施例之測點設置方法的 實施態樣；及 第三圖是第二圖的局部剖視圖。 【較佳實施例之詳細說明】 15 參閱第二圖及第三圖所示，是本發明高頻訊號之測點 經濟部智慧財產局員工消費合作社印製 (請先¾讀背面之注意事項寫本頁) 0 叹置方法，該方法是先在一印刷電路板2的每一零件接腳 塾（PAD)21的正下方，亦即該印刷電路板2的背面，設置 測δ式墊22，然後在該接腳墊2丨上直接貫設一連接該接 腳墊21與測試墊22之貫孔23，且該貫孔23的周壁塗佈 2〇有一層使該接腳墊21與測試墊22導接的導電物質，如此， 即可利用該測試墊22做為測試訊號時之測點。且在本實施 例中，該接腳墊21的徑長是22mil，該測試墊22的徑長 是26mil，且該貫孔23之孔徑是1〇mil。因此，如第二圖 所示，由於本發明是直接在印刷電路板上既有之零件接 第5頁 χ2'[Field of the Invention] The present invention relates to a method for setting measuring points of high-frequency signals. In particular (please read M. Note on the back to write this page) refers to a method that can set the measuring point to 100% without causing high frequencies. Setting method for measuring points of high-frequency signals with distorted signals. Child 5 [Explanation of the know-how] As the current processing speed of the CPU is getting faster and faster, it has reached the stage of hundreds or even thousands of MHz, which is much faster than the previous processing speed, but it is clearly in the category of high-frequency signals. Such high-frequency signal transmission is a very severe challenge for engineers designing hardware such as printed circuit boards. For the purpose of placing test points on the printed circuit board for production testing, as shown in the figure, the conventional method of adding test points on the printed circuit board 1 is to use the signal lines 10 on the printed circuit board 1. After the through-hole u pulls out a line segment 12, a test pad 13 is set as a measurement point at the end of the line segment 12. However, printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs due to the increasing degree of circuit integration on printed circuit board 1, and in areas with denser circuits on printed circuit board 1, this approach is not only unable to A measuring point is set on a signal line 10 (that is, the measuring point setting rate cannot reach 100%), so that the defective product is caused by the inability to measure each signal during the production process. Moreover, when testing high-frequency signals, due to the additional The pulled-out line segment 12 will produce a so-called antenna effect, and interfere with the high-frequency signal transmitted on the adjacent signal line 20, distorting the high-frequency signal and affecting the quality of signal transmission. [Summary of the Invention] Therefore, the object of the present invention is to provide a measuring point setting method for a high frequency signal that prevents distortion of high frequency signals and can achieve a 100% measuring point setting rate. A4 specification (210 X 297 mm) 2550386 A7 V. Description of the invention (method. Therefore, the method for setting the measuring point of the high-frequency signal of the present invention is to provide a pin pad and a pad on a printed circuit board. A through hole connected to one of the test pads on the printed circuit board's lunar surface. The test pad is used as a measuring point of the same frequency of 5 floods, so as to avoid high-frequency signal distortion and the measurement point setting rate reaching 100%. Brief Description] Other features and advantages of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings. In the drawings: 10 The first picture shows a conventional one Method for setting measuring points; The second figure is an embodiment of the method for setting measuring points according to a preferred embodiment of the present invention; and the third figure is a partial cross-sectional view of the second figure. [Detailed description of the preferred embodiment ] 15 Refer to the second and third figures, which are printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs at the measuring points of the high-frequency signals of the present invention (please read the notes on the back to write this page) 0 In this method, firstly, each part of a printed circuit board 2 is directly under the pin 塾 (PAD) 21, that is, the back of the printed circuit board 2 is provided with a δ-type pad 22, and then the pin pad 2丨 A through hole 23 connecting the pin pad 21 and the test pad 22 is directly arranged thereon, and the peripheral wall of the through hole 23 is coated with a layer of conductive material that makes the pin pad 21 and the test pad 22 conductive. In this way, the test pad 22 can be used as a measurement point for a test signal. In this embodiment, the diameter of the pin pad 21 is 22 mil, the diameter of the test pad 22 is 26 mil, and the through hole The aperture of 23 is 10 mil. Therefore, as shown in the second figure, since the present invention directly connects the existing parts on the printed circuit board to page 5 χ2 '
550386 五、發明說明（） 21上打上貫孔23，使接腳墊2 1與印刷電路板2背面之 測試墊22(即測點）相互連接，而不會佔用到印刷電路板2 上的其他空間，所以能夠在每一接腳墊21上設置測點且不 頁考慮印刷電路板2上線路集積度的問題，因此測點的設 置率可以達到百分之百。此外，由於本發明是直接在接腳 墊21上打設貫孔23並於接腳墊以正下方設置相連接之測 j墊22，不需再另外拉引線段出來，因此，不會有如上述 習知之天線效應的產生’而不致使高頻訊號產生失真並能 夠維持高頻訊號的傳輸品質。 紅上所述，本發明藉由在印刷電路板2之零件接腳墊 21上直接打設貫孔23,使接腳墊21與其背面之測試墊u 相連接，而利用該測試墊22做為高頻訊號之測點的方法， 確實能達到百分之百的測點設置率以及避免高頻訊號於傳 輸過程發生失真的功效。 以上所述者，僅為本發明之較佳實施例而已，當不能 以此限定本發明實施之範圍，即大凡依本發明申請：利矿: ί Μ β----- Ϊ請先鄹讀背面之注意事項Φ寫本頁) ‘線· 圍及發明說明書内容所作之簡單的等效變化與修飾，皆應 仍屬本發明專利涵蓋之範圍内。 “ 經濟部智慧財產局員工消費合作社印製550386 V. Description of the invention (21) A through hole 23 is punched on 21 so that the pin pad 21 and the test pad 22 (ie, test points) on the back of the printed circuit board 2 are connected to each other without occupying other parts on the printed circuit board 2. Space, so it is possible to set measuring points on each pin pad 21 without considering the problem of the degree of circuit integration on the printed circuit board 2. Therefore, the setting rate of measuring points can reach 100%. In addition, since the present invention directly punches through holes 23 on the foot pad 21 and sets the connected test pad 22 directly below the foot pad, there is no need to pull the lead wire section, so there will be no The generation of the conventional antenna effect does not cause distortion of the high frequency signal and can maintain the transmission quality of the high frequency signal. As mentioned above, in the present invention, the through-hole 23 is directly formed on the pin pad 21 of the printed circuit board 2 so that the pin pad 21 is connected to the test pad u on the back side, and the test pad 22 is used as The method of measuring points of high-frequency signals can indeed achieve 100% measurement point setting rate and the effect of avoiding distortion of high-frequency signals during transmission. The above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited in this way, that is, if anyone applies according to the present invention: Li mine: ί Μ β ----- ΪPlease read first Note on the back Φ write this page) 'Simple equivalent changes and modifications made to the content of the line, the fence, and the description of the invention should still fall within the scope of the present invention patent. "Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs
n ϋ n ϋ - 550386 A7 B7 五、發明說明（4) 【元件標號對照】 2 印刷電路板 21零件接腳墊（PAD) 22測試墊 23貫孔 -------------裝--- 請先陈讀背面之注意事項寫本頁) .- .線· 經濟部智慧財產局員工消費合作社印製 頁 7 第 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）n ϋ n ϋ-550386 A7 B7 V. Description of the invention (4) [Comparison of component numbers] 2 Printed circuit board 21 Parts pads (PAD) 22 Test pads 23 through holes ------------ -Loading --- Please read the precautions on the reverse side and write this page) .-. Thread · Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 7 The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm)