TW202234070A - Calibration structure and calibration method for double-sided probing measurement - Google Patents
Calibration structure and calibration method for double-sided probing measurement Download PDFInfo
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本發明是有關一種雙面探針量測校正結構與校正方法,特別是一種新創的 unknown-Thru-Reflect-Line(uTRL)微波量測校正技術,用以對平面式電路其垂直連線結構進行雙面探針之雙埠散射參數量測,本案能夠用之於半導體矽穿孔、玻璃穿孔或印刷變路板電鍍穿孔等精細垂直連線結構之特性量測,對3D-IC或高密度封裝等精密電子產業往高速/高頻發展提供更可靠的驗證工具。The invention relates to a double-sided probe measurement and calibration structure and calibration method, in particular to a new unknown-Thru-Reflect-Line (uTRL) microwave measurement and calibration technology, which is used for the vertical connection structure of a planar circuit. Carry out the measurement of the double-port scattering parameters of the double-sided probe. This case can be used to measure the characteristics of fine vertical wiring structures such as semiconductor through-silicon, glass through-hole, or printed circuit board electroplating through-holes. It can also be used for 3D-IC or high-density packaging. and other precision electronics industries to provide more reliable verification tools for high-speed/high-frequency development.
對於印刷電路板(Printed circuit board ,簡稱PCB)或是載有多數個積體電路(integrated circuit,簡稱IC)元件的載板的檢測,通常會以一單面探針檢測設備進行檢測,該單面探針檢測設備包含有一載板及複數探針,該複數探針間隔排列地設於該載板上,該複數探針的一端具有一針頭,使用者先將該複數探針進行高頻訊號校正後,讓該單面探針檢測設備的該複數針頭接觸該待測的載板以電連接,即達到檢測該多數個積體電路元件的載板的目的。For the inspection of the printed circuit board (PCB) or the carrier board carrying a plurality of integrated circuit (IC) components, a single-sided probe inspection equipment is usually used for inspection. The surface probe testing equipment includes a carrier board and a plurality of probes. The plurality of probes are arranged on the carrier board in a spaced arrangement. One end of the plurality of probes has a needle. The user first conducts a high-frequency signal on the plurality of probes. After calibration, the plurality of needles of the single-sided probe testing equipment are brought into contact with the carrier board to be tested for electrical connection, that is, the purpose of testing the carrier boards of the plurality of integrated circuit components is achieved.
由於半導體產業的發展越趨快速,操作頻寬以及工作速度越來越快,為達成此需求,需將積體電路傳輸路徑盡可能縮短,因此將多數積體電路元件放置於一封裝載板並進行相對應電路佈局,使該封裝載板的頂面安裝多數個具有積體電路元件之焊接盤,以及該封裝載板的底面以重新電路佈局之訊號輸出端,使訊號傳遞路徑可由位於該封裝載板的頂面的焊接盤,傳輸至該封裝載板的底面的訊號輸出端,然而該單面探針檢測設備並無法執行雙面檢測,因此該封裝載板的頂面及底面沒有辦法做雙面的檢測。Due to the rapid development of the semiconductor industry, the operating bandwidth and the working speed are getting faster and faster. In order to achieve this demand, it is necessary to shorten the integrated circuit transmission path as much as possible. Therefore, most of the integrated circuit components are placed on a package board and Corresponding circuit layout is carried out, so that a plurality of solder pads with integrated circuit components are mounted on the top surface of the package carrier, and the signal output terminals of the circuit layout are rearranged on the bottom surface of the package carrier, so that the signal transmission path can be located in the package. The solder pads on the top surface of the carrier board are transmitted to the signal output terminals on the bottom surface of the package carrier board. However, the single-sided probe testing equipment cannot perform double-sided testing, so the top and bottom surfaces of the package carrier board cannot be tested. Double-sided inspection.
故為了如此情況,發展出了一種垂直式雙面檢測設備,用以將該具有多數個焊接盤的封裝載板安裝於該載台上,使該封裝載板呈現鉛直的狀態,該二探針座控制該二探針於該封裝載板的兩面上進行檢測,達到同時檢測該封裝載板的兩面的目的。Therefore, for such a situation, a vertical double-sided inspection equipment has been developed, which is used to mount the package carrier with a plurality of solder pads on the carrier, so that the package carrier is in a vertical state, and the two probes The seat controls the two probes to detect on both sides of the package carrier board, so as to achieve the purpose of simultaneously testing both sides of the package carrier board.
而這一類的垂直式雙面檢測設備進行高頻信號校正時,由於傳統雙面式探針點觸之散射參數校正需利用雙面探針機台搭配Short-Open-Load-Reciprocal (SOLR)量測垂直連接結構之散射參數到40 GHz,然而SOLR依賴的Short, Open, Load等標準件在毫米波以上頻段不易做到精準的特性,而使其校正準確度大打折扣,故如此校正法非常不適用於毫米波以上頻段。When this type of vertical double-sided inspection equipment is used for high-frequency signal correction, due to the traditional double-sided probe point touch scattering parameter correction, a double-sided probe machine with Short-Open-Load-Reciprocal (SOLR) measurement is required. The scattering parameters of the vertical connection structure are measured to 40 GHz. However, the standard components such as Short, Open, Load, etc. that SOLR relies on are not easy to achieve accurate characteristics in the frequency band above the millimeter wave, which greatly reduces the calibration accuracy. Therefore, this calibration method is very inefficient. Suitable for frequency bands above millimeter wave.
針對上述問題,本發明專利以新創的unknown-Thru-Reflect-Line (uTRL) 校正技術應用於雙面探針量測環境,改善SOLR高頻表現不佳的問題,以精準地萃取三維垂直連接結構真實的高頻特性參數,因此本發明應為一最佳解決方案。In view of the above problems, the patent of the present invention applies the newly created unknown-Thru-Reflect-Line (uTRL) correction technology to the double-sided probe measurement environment to improve the problem of poor high-frequency performance of SOLR, so as to accurately extract the three-dimensional vertical connection Therefore, the present invention should be an optimal solution.
一種雙面探針量測校正結構,係設置於一雙面基板上,其中該雙面基板係包含有一第一基板及一第二基板,而該雙面探針量測校正結構係包括:一未知穿透校正件,係穿透該雙面基板,並佈設於該雙面基板之第一基板及第二基板上;一頂面校正組,係包含有至少一線路頂面校正件及一反射頂面校正件,其中該線路頂面校正件及該反射頂面校正件係佈設於該雙面基板之第一基板及第二基板上,而該線路頂面校正件及該反射頂面校正件佈設於該雙面基板之第一基板範圍處係皆設置有一第一量測參考面,而該反射頂面校正件之第一量測參考面係為一斷開線段;以及一底面校正組,係包含有至少一線路底面校正件及一反射底面校正件,其中該線路底面校正件及該反射底面校正件係佈設於該雙面基板之第一基板及第二基板上,而該線路底面校正件及該反射底面校正件佈設於該雙面基板之第二基板範圍處係皆設置有一第二量測參考面,而該反射底面校正件之第二量測參考面係為一斷開線段。A double-sided probe measurement and correction structure is disposed on a double-sided substrate, wherein the double-sided substrate includes a first substrate and a second substrate, and the double-sided probe measurement and correction structure includes: a The unknown penetration correction element penetrates the double-sided substrate and is arranged on the first substrate and the second substrate of the double-sided substrate; a top surface correction group includes at least one line top surface correction element and a reflection A top surface correction member, wherein the line top surface correction member and the reflection top surface correction member are arranged on the first substrate and the second substrate of the double-sided substrate, and the line top surface correction member and the reflection top surface correction member A first measurement reference surface is arranged at the first substrate area of the double-sided substrate, and the first measurement reference surface of the reflective top surface correction element is a disconnected line segment; and a bottom surface correction group, It includes at least one line bottom correction piece and a reflection bottom correction piece, wherein the line bottom correction piece and the reflection bottom correction piece are arranged on the first substrate and the second substrate of the double-sided substrate, and the line bottom correction A second measurement reference surface is arranged at the second substrate area of the double-sided substrate, and the second measurement reference surface of the reflection bottom correction member is a disconnected line segment.
更具體的說,所述未知穿透校正件、線路頂面校正件、反射頂面校正件、線路底面校正件及反射底面校正件係皆為傳輸線所形成,而該傳輸線係能夠為共平面波導或是微帶線。More specifically, the unknown penetration correction element, the line top correction element, the reflection top correction element, the line bottom correction element and the reflection bottom correction element are all formed by transmission lines, and the transmission lines can be coplanar waveguides. or microstrip.
更具體的說,所述雙面基板係能夠為矽基板、化合物半導體基板、陶瓷基板或是環氧玻璃纖維板基板。More specifically, the double-sided substrate can be a silicon substrate, a compound semiconductor substrate, a ceramic substrate or an epoxy glass fiber board substrate.
更具體的說,所述未知穿透校正件上係亦具有第一量測參考面及第二量測參考面,其中該第一量測參考面係位於該未知穿透校正件佈設於該雙面基板之第一基板範圍處,而該第二量測參考面係位於該未知穿透校正件佈設於該雙面基板之第二基板範圍處。More specifically, the unknown penetration correction member also has a first measurement reference surface and a second measurement reference surface, wherein the first measurement reference surface is located on the unknown penetration correction member arranged on the double The second measurement reference surface is located at the first substrate area of the double-sided substrate, and the unknown penetration correction element is arranged at the second substrate area of the double-sided substrate.
更具體的說,所述線路頂面校正件位於該第二基板之長度係與該反射頂面校正件位於該第二基板之長度相同。More specifically, the length of the line top surface correction member located on the second substrate is the same as the length of the reflection top surface correction member located on the second substrate.
更具體的說,所述線路底面校正件位於該第一基板之長度係與該反射底面校正件位於該第一基板之長度相同。More specifically, the length of the line bottom correction member on the first substrate is the same as the length of the reflection bottom correction member on the first substrate.
一種雙面探針量測校正方法,其步驟為: (1) 一未知穿透校正件係具有一第一量測參考面及一第二量測參考面; (2) 採用該第一量測參考面,以透過該未知穿透校正件、至少一線路頂面校正件及一反射頂面校正件進行第一校正; (3) 採用該第二量測參考面,以透過該未知穿透校正件、至少一線路底面校正件及一反射底面校正件進行第二校正;以及 (4) 再依據第一校正與第二校正之結果,進行散射參數之運算。 A method for measuring and correcting a double-sided probe, the steps of which are: (1) An unknown penetration correction element has a first measurement reference surface and a second measurement reference surface; (2) Using the first measurement reference surface to perform the first calibration through the unknown penetration calibration part, at least one line top surface calibration part and a reflection top surface calibration part; (3) Using the second measurement reference surface to perform the second calibration through the unknown penetration correction element, at least one line bottom correction element and a reflection bottom correction element; and (4) According to the results of the first calibration and the second calibration, calculate the scattering parameters.
更具體的說,所述校正過程中,不需使用該未知穿透校正件之電磁特性。More specifically, in the calibration process, the electromagnetic properties of the unknown penetration calibration element need not be used.
有關於本發明其他技術內容、特點與功效,在以下配合參考圖式之較佳實施例的詳細說明中,將可清楚的呈現。Other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings.
請參閱第1圖,為本案之uTRL 校正件應用於垂直連線結構的示意圖,本案提出具有未知特性垂直結構之unknown-THRU, TOP-LINE, TOP-REFLECT, BOTTOM-LINE, BOTTOM-REFLECT校正件設計,作為一階段式雙面探針微波/毫米波散射參數量測校正方式。此校正件可用在半導體(silicon, glass, GaAs等)基板或印刷電路板上;Please refer to Figure 1, which is a schematic diagram of the application of the uTRL correction component to the vertical connection structure. This application proposes unknown-THRU, TOP-LINE, TOP-REFLECT, BOTTOM-LINE, BOTTOM-REFLECT correction components with unknown vertical structures It is designed as a one-stage double-sided probe microwave/millimeter wave scattering parameter measurement and correction method. This calibration can be used on semiconductor (silicon, glass, GaAs, etc.) substrates or printed circuit boards;
如第1圖所示,本案係設置於一雙面基板1(係能夠為矽基板、化合物半導體基板、陶瓷基板或是環氧玻璃纖維板基板)上,其中該雙面基板1係包含有一第一基板101及一第二基板102,而該雙面探針量測校正結構說明如下:
(1) 一未知穿透校正件unknown-THRU,係包含了第一線段111及第二線段112,而第一線段111與第二線段112是相連並穿透該雙面基板1,並佈設於該雙面基板1之第一基板101及第二基板102上,其中該未知穿透校正件上係具有一第一量測參考面113(Reference plane-1)及一第二量測參考面114(Reference plane-2),而穿透範圍115為第一量測參考面113與第二量測參考面114之間的間距,其中雙面探針(頂端探針(Top probe)及底端探針(Bottom probe))係分別觸碰該第一線段111及第二線段112上(第一量測參考面113之位置及第二量測參考面114之位置係以最小的穿透範圍115作設計考量,不同基板與不同製程有不同的設計結果)。
(2) 一頂面校正組,係包含:
(a) 一線路頂面校正件TOP-LINE,係包含了第一線段121及第二線段122,而第一線段121與第二線段122是相連並穿透該雙面基板1,並佈設於該雙面基板1之第一基板101及第二基板102上,而該第一線段121範圍內係具有第一量測參考面123,其中該第一量測參考面123為連接線段,其中第一量測參考面123之位置係以未知穿透校正件unknown-THRU之第一量測參考面113為基準,增加四分之一波長之頂面線段,此波長係量測頻寬中心頻率之頂面線段波長。
(b) 一反射頂面校正件TOP-REFLECT,係包含了第一線段131及第二線段132,而第一線段131與第二線段132是中間是斷開,而該第一線段131與第二線段132係分別佈設於該雙面基板1之第一基板101及第二基板102上,而該第一線段131與第二線段132斷開範圍內係具有第一量測參考面133,其中該第一量測參考面133為斷開線段,其中第一量測參考面133之位置係以反射頂面校正件TOP-REFLECT兩端間之信號耦合到達可忽略的距離為準。
(3) 一底面校正組,係包含:
(a) 一線路底面校正件BOTTOM-LINE,係包含了第一線段141及第二線段142,而第一線段141與第二線段142是相連並穿透該雙面基板1,並佈設於該雙面基板1之第一基板101及第二基板102上,而該第一線段141範圍內係具有第二量測參考面143,其中該第二量測參考面143為連接線段,其中第二量測參考面143之位置係以未知穿透校正件unknown-THRU之第二量測參考面114為基準,增加四分之一波長之底面線段,此波長係量測頻寬中心頻率之底面線段波長。
(b) 一反射底面校正件BOTTOM-REFLE14CT,係包含了第一線段151及第二線段152,而第一線段151與第二線段152是中間是斷開,而該第一線段151與第二線段152係分別佈設於該雙面基板1之第一基板101及第二基板102上,而該第一線段151與第二線段152斷開範圍內係具有第二量測參考面153,其中該第二量測參考面153為斷開線段,其中第二量測參考面153之位置係以反射底面校正件BOTTOM-REFLECT兩端間之信號耦合到達可忽略的距離為準。
As shown in FIG. 1, the present case is disposed on a double-sided substrate 1 (which can be a silicon substrate, a compound semiconductor substrate, a ceramic substrate or an epoxy glass fiber board substrate), wherein the double-
其中該未知穿透校正件、線路頂面校正件、反射頂面校正件、線路底面校正件及反射底面校正件係皆為傳輸線所形成,而該傳輸線係能夠為共平面波導或是微帶線。The unknown penetration correction element, the line top correction element, the reflection top correction element, the line bottom correction element and the reflection bottom correction element are all formed by transmission lines, and the transmission lines can be coplanar waveguides or microstrip lines .
其中該線路頂面校正件位於該第二基板102之第二線段122長度係與該反射頂面校正件位於該第二基板102之第三線段132長度相同。The length of the
其中該線路底面校正件位於該第一基板101之第一線段141長度係與該反射底面校正件位於該第一基板101之第一線段151長度相同。The length of the
本案以晶片封裝技術常見的矽穿孔或玻璃穿孔中介層(Interposer)結構,如圖一所示,其穿孔因製程因素使其形態並非理想的圓柱型而呈現圓錐狀,不同尺寸其填孔狀態也有差異,相關的材料參數-包括介質或金屬亦甚為複雜,完整且精確的三維電磁模擬分析不易做到,須有精確的量測數據為基礎方能對模擬設定參數進行調整與最佳化,進而建構其完整的電路模型,最後對整體晶片/封裝作系統效能評估,諸如高速數位傳輸的眼圖(Eye diagram)或封裝結構上之天線輻射場型與增益等,如此完整的設計環境還是須要紮實的量測驗證作為基礎方能競其功,本發明專利即針對此特殊量測需求提出其校正量測方式以取得其精確的高頻電氣特性,以利後續的分析模擬。In this case, through-silicon or through-glass interposer structure, which is common in chip packaging technology, is used. As shown in Figure 1, the through-hole is not an ideal cylindrical shape due to process factors, and it is conical. Differences, related material parameters - including medium or metal are also very complex, complete and accurate 3D electromagnetic simulation analysis is not easy to achieve, only accurate measurement data can be used as the basis to adjust and optimize the simulation parameters. Then construct its complete circuit model, and finally evaluate the system performance of the entire chip/package, such as the eye diagram of high-speed digital transmission or the antenna radiation pattern and gain on the package structure, etc. Such a complete design environment still needs A solid measurement and verification can be used as the basis to compete. The patent of the present invention proposes a calibration measurement method for this special measurement requirement to obtain its accurate high-frequency electrical characteristics, so as to facilitate subsequent analysis and simulation.
而本案之實施例的正反面如第2A及2B圖所示,於一雙面基板2之第一基板21及第二基板22上設計校正件,本實施例中,以接地共平面波導(Grounded Coplanar Waveguide, GCPW)為傳輸線結構,由於一般TRL校正有1:8的頻寬限制,如欲作寬頻量測,須設計多段長度不同的傳輸線即可(本實施例中使用了Line1、line2及Line3),故線路頂面校正件及線路底面校正件能夠使用多組,而本實施例中具有的校正件如下:
(1) 未知穿透校正件:unknown Thru
(2) 線路頂面校正件:Calkit_Top_Line1、Calkit_Top_Line2 、Calkit_Top_Line3
(3) 反射頂面校正件:Calkit_Top_Open
(4) 線路底面校正件:Calkit_Bottom_Line1、Calkit_Bottom_Line2 、Calkit_ Bottom_Line3
(5) 反射底面校正件:Calkit_Bottom_Open
As shown in Figures 2A and 2B, the front and back of the embodiment of the present case are designed with calibration elements on the
而本實施例中,Linel、Line2 與Line3較Thru分別多出14 mm、4.2 mm與1.3 mm長度,而Reflect校正件(Top_Open及Bottom_Open)使用開路型式,由於其製程精度使用探針間距400 mm的設計,故量測頻率只到40 GHz。In this embodiment, Line1, Line2, and Line3 are 14 mm, 4.2 mm, and 1.3 mm longer than Thru, respectively, while the Reflect calibration components (Top_Open and Bottom_Open) use open-circuit types. Because of their process accuracy, the probes with a pitch of 400 mm are used. design, so the measurement frequency is only up to 40 GHz.
而本案雙面探針量測校正方法,如第3圖所示,其步驟為:
(1) 一未知穿透校正件係具有一第一量測參考面及一第二量測參考面301;
(2) 採用該第一量測參考面,以透過該未知穿透校正件、至少一線路頂面校正件及一反射頂面校正件結合進行第一TRL(Thru-Reflect-Line)校正302;
(3) 採用該第二量測參考面,以透過該未知穿透校正件、至少一線路底面校正件及一反射底面校正件結合進行第二TRL(Thru-Reflect-Line)校正303;以及
(4) 再依據第一校正與第二校正之結果,進行散射參數之運算304。
The double-sided probe measurement and calibration method in this case is shown in Figure 3. The steps are:
(1) An unknown penetration correction element has a first measurement reference surface and a second
而本案計算流程,如第4圖所示,其步驟為:
(1) 開始,設量測參考阻抗為上層傳輸線
,設量測參考平面為Reference-top(第一量測參考面);
(2) 取unknown-THRU(未知穿透), LINE-TOP(線路頂面), REFLECT-TOP(反射頂面)校正件之量測雙埠散射參數進行TRL(Thru-Reflect-Line)校正,得到上層傳輸線傳播常數
與埠端1之誤差盒矩陣
;
(3) 求取上層傳輸線特性阻抗
,將誤差盒矩陣
進行阻抗轉換成為
;
(4) 設量測參考阻抗為下層傳輸線
,設量測參考平面為Reference-bottom(第二量測參考面);
(5) 取unknown-THRU(未知穿透), LINE-BOTTOM(反射底面), REFLECT-BOTTOM(反射底面)校正件之量測雙埠散射參數進行TRL(Thru-Reflect-Line)校正,得到下層傳輸線傳播常數
與埠端2之誤差盒矩陣
;
(6) 求取下層傳輸線特性阻抗
,將誤差盒矩陣
進行阻抗轉換成為
;
(7) 計算unknown-THRU(未知穿透)雙埠散射參數
*****;
(8) 結束。
The calculation process of this case is shown in Figure 4. The steps are: (1) At the beginning, set the measurement reference impedance as the upper transmission line , let the measurement reference plane be Reference-top (the first measurement reference plane); (2) Take unknown-THRU (unknown penetration), LINE-TOP (line top surface), REFLECT-TOP (reflection top surface) correction Perform TRL (Thru-Reflect-Line) correction on the measured dual-port scattering parameters of the device to obtain the propagation constant of the upper transmission line Error box matrix with
而上述 *,若基板介電損耗相當低,上層傳輸線須有一個串聯電阻測試件,其特性阻抗值為: , 若基板介電損耗較高,可用二階段式校正比較法求特性阻抗值。 For the above * , if the dielectric loss of the substrate is quite low, the upper transmission line must have a series resistance test piece whose characteristic impedance value is: , If the dielectric loss of the substrate is high, the characteristic impedance value can be obtained by the two-stage correction and comparison method.
而上述 **,誤差盒串接矩陣(Cascading matrix)轉換關係為: , , And the above ** , the error box cascade matrix (Cascading matrix) conversion relationship is: , ,
而上述 ***,若基板介電損耗相當低,下層傳輸線須有一個串聯電阻測試件,其特性阻抗值為: , ; 若基板介電損耗較高,可用二階段式校正比較法求特性阻抗值。 As for the above *** , if the dielectric loss of the substrate is quite low, the lower transmission line must have a series resistance test piece, and its characteristic impedance value is: , ; If the dielectric loss of the substrate is high, the characteristic impedance value can be obtained by the two-stage correction and comparison method.
而上述 ****,誤差盒串接矩陣(Cascading matrix)轉換關係為: And the above **** , the error box cascade matrix (Cascading matrix) conversion relationship is:
而上述
*****,兩個校正程序解出之誤差盒與未知的垂直連線結構其串接矩陣關係為:
,其中[
E
A,top /bottom ]分別為正/背面校正後在埠端1以50Ω為參考阻抗之雙埠誤差盒串接矩陣,[
U] 串接矩陣可直接轉換至散射參數,而誤差盒
內容為
未知矩陣[
U]為
其中
於校正完後即求得,而
也因[
U]為互易性網路,行列式為1的特性而可推得其值為
。
And the above ***** , the error box solved by the two calibration programs and the unknown vertical connection structure have a concatenated matrix relationship as follows: , where [ E A,top /bottom ] is the two-port error box concatenation matrix with 50Ω as the reference impedance at
而本案對於校正件傳輸線接地共平面波導(Grounded Coplanar Waveguide, GCPW) 量測結果,如第5圖及第6圖所示 ,其中第5圖為傳播常數,包括每毫米(mm)傳輸衰減量的衰減常數,以及等效介電常數,此等效介電常數係定義為光速與傳輸線相位速度(Phase velocity)比值的平方,而第6圖為傳輸線之特性阻抗,包括實部與虛部。 In this case, the measurement results of the grounded Coplanar Waveguide (GCPW) of the transmission line of the calibration component are shown in Figures 5 and 6 , of which Figure 5 is the propagation constant, including the transmission attenuation per millimeter (mm). Attenuation constant, and equivalent dielectric constant, which is defined as the square of the ratio of the speed of light to the phase velocity of the transmission line (Phase velocity), and Figure 6 shows the characteristic impedance of the transmission line, including real and imaginary parts.
而本案對於印刷電路板穿孔校正後,unknown-THRU(未知穿透)量測結果,如第7圖及第8圖所示,其中第7圖為反射係數,包括大小(單位為分貝)與相角(單位為度),而第8圖為傳輸係數,包括大小(單位為分貝)與相角(單位為度)。In this case, the measurement results of unknown-THRU (unknown penetration) after the perforation correction of the printed circuit board are shown in Figures 7 and 8, of which Figure 7 is the reflection coefficient, including the magnitude (in decibels) and the phase. angle (in degrees), and Figure 8 shows the transmission coefficient, including magnitude (in decibels) and phase angle (in degrees).
本發明所提供之雙面探針量測校正結構與校正方法,與其他習用技術相互比較時,其優點如下: (1) 本發明使用新創的 unknown-Thru-Reflect-Line(uTRL)微波量測校正技術,對平面式電路其垂直連線結構進行雙面探針之雙埠散射參數量測,而垂直連線結構之電磁特性完全不須事先知道,於校正完成後即可推得。 (2) 本發明可用之於半導體矽穿孔、玻璃穿孔或印刷電路板電鍍穿孔等精細垂直連線結構之特性量測,對3D-IC或高密度封裝等精密電子產業往高速/高頻發展提供更可靠的驗證工具。 (3) 本發明能夠針對晶圓級垂直結構元件-諸如矽穿孔、玻璃穿孔與印刷電路板盲/通孔等,其高頻特性量測作校正量測,對半導體製造廠、封裝測試廠及印刷電路板製造廠等都相當重要,而台灣擁有世界晶圓代工大廠台積電與聯電、封測大廠日月光與矽品以及印刷電路板大廠臻鼎等,有利於本專利之推廣應用。 (4) 由於傳統雙面式探針點觸之散射參數校正需要精準的Short, Open, Load等標準件,而上述標準件在毫米波以上頻段不易做到精準的特性,而使其校正準確度大打折扣,一般只能用到40 GHz,然而本發明專利僅需要用到傳輸線作為校正件,可操作到110 GHz如此高的頻段。 (5) 另外,本發明專利為一階段式,不需要先經過同軸校正件或探針阻抗標準板等預先校正程序,可大量節省測試時間成本。 When compared with other conventional technologies, the double-sided probe measurement and calibration structure and calibration method provided by the present invention have the following advantages: (1) The present invention uses the newly created unknown-Thru-Reflect-Line (uTRL) microwave measurement and correction technology to measure the two-port scattering parameters of the double-sided probe on the vertical connection structure of the planar circuit, and the vertical connection The electromagnetic properties of the wire structure do not need to be known in advance, and can be deduced after the calibration is completed. (2) The present invention can be used to measure the characteristics of fine vertical wiring structures such as semiconductor through-silicon, glass through-hole or printed circuit board electroplating through-holes, etc., and provides high-speed/high-frequency development for precision electronic industries such as 3D-IC or high-density packaging. More reliable verification tools. (3) The present invention can perform calibration measurement for the measurement of high-frequency characteristics of wafer-level vertical structure components such as TSVs, TSVs, and PCB blind/through holes, etc. Printed circuit board manufacturers are very important, and Taiwan has the world's largest wafer foundries TSMC and UMC, packaging and testing companies ASE and Silicon Products, and printed circuit board manufacturers Zhending, etc., which is conducive to the promotion and application of this patent. (4) Because the traditional double-sided probe point touch scattering parameter calibration requires accurate Short, Open, Load and other standard components, and the above standard components are not easy to achieve accurate characteristics in the frequency band above the millimeter wave, which makes the calibration accuracy It is greatly reduced, generally only 40 GHz can be used, but the patent of the present invention only needs to use the transmission line as a correction element, and can operate to a frequency band as high as 110 GHz. (5) In addition, the patent of the present invention is a one-stage type, which does not require pre-calibration procedures such as coaxial calibration parts or probe impedance standard plates, which can save a lot of test time and cost.
本發明已透過上述之實施例揭露如上,然其並非用以限定本發明,任何熟悉此一技術領域具有通常知識者,在瞭解本發明前述的技術特徵及實施例,並在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,因此本發明之專利保護範圍須視本說明書所附之請求項所界定者為準。The present invention has been disclosed above through the above-mentioned embodiments, but it is not intended to limit the present invention. Anyone familiar with this technical field with ordinary knowledge can understand the aforementioned technical features and embodiments of the present invention without departing from the present invention. Within the spirit and scope, some changes and modifications can be made, so the scope of patent protection of the present invention shall be determined by the claims attached to this specification.
1:雙面基板 11:頂面探針 12:底面探針 101:第一基板 102:第二基板 111:第一線段 112:第二線段 113:第一量測參考面 114:第二量測參考面 115:穿透範圍 121:第一線段 122:第二線段 123:第一量測參考面 131:第一線段 132:第二線段 133:第一量測參考面 141:第一線段 142:第二線段 143:第二量測參考面 151:第一線段 152:第二線段 153:第二量測參考面 2:雙面基板 21:第一基板 22:第二基板 1: Double-sided substrate 11: Top probe 12: Bottom probe 101: The first substrate 102: Second substrate 111: The first line segment 112: Second line segment 113: The first measurement reference surface 114: The second measurement reference surface 115: Penetration range 121: The first line segment 122: Second line segment 123: The first measurement reference surface 131: first line segment 132: Second line segment 133: The first measurement reference surface 141: first line segment 142: Second line segment 143: The second measurement reference surface 151: first line segment 152: Second line segment 153: Second measurement reference surface 2: Double-sided substrate 21: The first substrate 22: Second substrate
[第1圖]係本發明雙面探針量測校正結構與校正方法之uTRL 校正件應用於垂直連線結構的示意圖。 [第2A圖]係本發明雙面探針量測校正結構與校正方法之實施基板正面示意圖。 [第2B圖]係本發明雙面探針量測校正結構與校正方法之實施基板背面示意圖。 [第3圖]係本發明雙面探針量測校正結構與校正方法之校正方法流程示意圖。 [第4圖]係本發明雙面探針量測校正結構與校正方法之相關計算流程示意圖。 [第5圖]係本發明雙面探針量測校正結構與校正方法之校正件傳輸線 接地共平面波導(Grounded Coplanar Waveguide, GCPW) 傳播常數量測結果示意圖。 [第6圖]係本發明雙面探針量測校正結構與校正方法之校正件傳輸線接地共平面波導(Grounded Coplanar Waveguide, GCPW) 特性阻抗量測結果示意圖。 [第7圖]係本發明雙面探針量測校正結構與校正方法之印刷電路板穿孔校正後反射係數量測結果示意圖。 [第8圖]係本發明雙面探針量測校正結構與校正方法之印刷電路板穿孔校正後傳輸係數量測結果示意圖。 [Fig. 1] is a schematic diagram of the application of the uTRL calibration element of the double-sided probe measurement calibration structure and calibration method of the present invention to a vertical connection structure. [FIG. 2A] is a schematic front view of the implementation substrate of the double-sided probe measurement and calibration structure and calibration method of the present invention. [FIG. 2B] is a schematic diagram of the backside of the substrate for the implementation of the double-sided probe measurement and calibration structure and calibration method of the present invention. [Fig. 3] is a schematic flow chart of the calibration method of the double-sided probe measurement calibration structure and calibration method of the present invention. [Fig. 4] is a schematic diagram of the relevant calculation flow of the double-sided probe measurement and calibration structure and calibration method of the present invention. [Fig. 5] is a schematic diagram of the measurement result of the propagation constant of the grounded coplanar waveguide (GCPW) of the calibration element transmission line of the double-sided probe measurement and calibration structure and calibration method of the present invention. [Fig. 6] is a schematic diagram of the characteristic impedance measurement result of the grounded coplanar waveguide (GCPW) of the transmission line of the calibration element of the double-sided probe measurement and calibration structure and calibration method of the present invention. [Fig. 7] is a schematic diagram of the measurement result of the reflection coefficient after the perforation correction of the printed circuit board of the double-sided probe measurement and correction structure and correction method of the present invention. [Fig. 8] is a schematic diagram of the measurement result of the transmission coefficient after the perforation correction of the printed circuit board of the double-sided probe measurement and correction structure and correction method of the present invention.
1:雙面基板 1: Double-sided substrate
11:頂面探針 11: Top probe
12:底面探針 12: Bottom probe
101:第一基板 101: The first substrate
102:第二基板 102: Second substrate
111:第一線段 111: The first line segment
112:第二線段 112: Second line segment
113:第一量測參考面 113: The first measurement reference surface
114:第二量測參考面 114: The second measurement reference surface
115:穿透範圍 115: Penetration range
121:第一線段 121: The first line segment
122:第二線段 122: Second line segment
123:第一量測參考面 123: The first measurement reference surface
131:第一線段 131: first line segment
132:第二線段 132: Second line segment
133:第一量測參考面 133: The first measurement reference surface
141:第一線段 141: first line segment
142:第二線段 142: Second line segment
143:第二量測參考面 143: The second measurement reference surface
151:第一線段 151: first line segment
152:第二線段 152: Second line segment
153:第二量測參考面 153: Second measurement reference surface
Claims (8)
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