TW213517B - Impedance and inductance control for electrical connectors - Google Patents

Abstract

A method and structure of an electrical connector (10) is provided for tuning the impedance of the connector according to a given impedance of an electrical circuit in which the connector is interconnected. The connector includes a dielectric housing (16) having a receptacle (12) for receiving a complementary mating connector. A plurality of terminals (12) are mounted on the housing. The terminals include body portions (32) located in the housing and contact portions (42) located at the receptacle for engaging appropriate terminals of the mating connector when inserted into the receptacle. The areas (34, 34', 34'', 34''') of the body portions of the terminals are selectively varied to vary the capacitance of the terminals and, therefore, the impedance of the connector to match the given impedance of the electrical circuit. When the connector is used for mounting to a printed circuit board, ground terminals (30) have at least two feet (36) for engaging a respective single ground trace of a common ground circuit on the printed circuit board for reducing the inductance between a particular ground terminal and its respective circuit trace.

Description

KS Industrial and Consumer Cooperatives, Central Bureau of Standards, Ministry of Hydrocarbon Economy, 213557 A6. -------- B6____ V. Description of the invention (1) Field of the invention This invention relates to the technical aspects of electrical connectors, especially to control electrical connections. The methods and methods for preventing interference and inductance are very limited. r Background of the invention In today ’s high-demand electronic applications, the demand is that all components charged for road rent will optimize the signal transmission characteristics ’otherwise the complete system will be damaged or weakened. These characteristics include rise time attenuation or system cheek bandwidth, crosstalk, impedance control, and propagation delay. Ideally, an electrical connector will have little or no effect on these characteristics of the intersection system. An ideal joint will be "Quick". In other words, the function of the system will be as if the circuit is running, and it will have no effect on the system. However, this ideal connector is unachievable or impossible, and there has been no effort to develop electrical connectors that have little impact on the system. Impedance and inductance control are the heart of designing an ideal joint. This is especially true for electrical connectors used in high-speed electronic installations, ie those involving high frequencies. One example of such connectors is what is commonly known as an electrical connector. An edge card connector is provided to receive a printed circuit board, the latter having a mating edge and a plurality of contact pads near the edge. These edge joints have a long leather ---- ~ ------------ " .- shell, and f fixed-long multiple sockets or slits for receiving printed circuit boards Pair the edges. A plurality of terminals are spaced along one or both sides of the slit for engaging the contact pads that are close to the mating edge of the board. For many applications, these edge connectors are mounted on a second printed circuit board. The paired " edge " board is commonly referred to as " child " board, and the board mounted with the connector is referred to as " female " board. The goal of the present invention is to adjust the impedance of an electrical connector, such as an edge connector impedance, and the paper is suitable for the China® Garden Standard (CNS) A 4 specification (21U X 297 public goods) 82.3. 40,000 (please read the note on the back first Matters again ^-«-this page ^: i installed-ordered · 3 213 ^ 213 ^ A6 B6

Therefore, one object of the present invention is to provide a t method and color making

Hydrocarbon Ji Tan Central Bureau of Standards 8 Industrial and Consumer Cooperatives printed K to reduce one electrical connector

The area can be provided with a fixed width by changing the overall size of the body part, which can be installed on the leather, and the area of the body part can be changed by changing its length and the sub-bones can be provided as a uniform dice with a uniform size. The area of the main body can be connected with a socket, which is used to show the mating edge connected to an edge. The child has a body part or a slit for the selective modification of the printed circuit board Θ f Please read the "Notes on the back and then M 'to write this page". Each paper size is used in a National Standard (CNS) A 4 specifications (210 X 29? public goods) 82.3. 40,000 / 213b! V. Description of the invention (3) It is changed by forming an opening in it. According to the present invention, 鈮: ¾½: 銀 53, each terminal is provided by & installation for fishing, and the meal is fit in the concave part of the leather shell for w Fix the terminals to the Ge Yi. Each dock is provided with a bottom, a contact part and an inverted tip for installation. The latter extends from the bottom. The present invention is also conceived—electrically connected to the calyx, which is provided on a printed board. The latter has two, and more The circuit traces form part of the common ground circuit. The connector has a plurality of signal terminals and a plurality of ground terminals, and is installed in the leather shell. At least one grounding terminal has at least two grounding pins, which can be combined with the respective circuit traces of the common grounding circuit to make multiple & contact with it. The other purposes of this issue B month's features and advantages are described in detail from the following, and they are attached to the attached statement, it will be very clear. Min said that the present invention believes. For the characteristics of the new particles, please apply in the patent scope j τ Refer to the following details for the best understanding with the attached Min Speaking, in which the same reference number snail indicates the same element in each ®, among which: Read 1 is a transparent valve that can apply the electrical connector of the present invention, Partially facing; Gate 24—the vertical surface of the long electrical connector; however, each terminal is shown; .4 is a ^^^ Gate 5 is a vertical surface similar to Gate 3, but inverted The width of the paper is increased; the paper is in accordance with the specifications of CNS A4 (210 X 297 public goods)

.1 • Binding. (Please read the precautions on the back before writing this page) 1 82.3. 40,000 A6 B6 213517 V. Description of the invention (4) 囷 6 is a vertical surface similar to Ming 2 Long illness ^; 囷 7 is a vertical section more like Min 4, but the surface chair is reduced by providing a hinge; and ~~~~ circle 8 is the impedance characteristic of a circuit relative to an electrical connector. Calls ..... --- - Shu -η impedance characteristics can storm square shape 4 soldiers preferred dETAILED detailed reference circle guide said the first reference Min 1, Α I ^ the present invention in a north-doped 'collectively referred ίο , For a printed circuit board (not shown in Fujian), which has a mating edge and a number of pads to connect to the edge. These types of connectors are commonly known as " edge card " connectors, with ear socket device, form It is a narrow tablet 12, brushed_circuit board is inserted into one of the contact area spots of the connector, 18 conditions include the condition of power X. This bodhisattva is turned into normal color and has a spring contact element, Yu Gu 1 is collectively called 14, along one of the slits 12 of the dielectric leather case 16 ** -------- _ * -.......-, or placed on both sides at a longitudinal interval. This lesson replaces No piece of port According to the various fun, dragon edge __, insert the slotted circuit board matching edge spacing configuration. It should be understood that the various aspects of the present invention is not limited to the edge joints of the described nature, and the present invention can be divided into various applications It is understood that the dielectric leather 16 of the edge connector 10 includes a plurality of legs 18 extending from the leather shell to engage a surface of a second printed circuit board. The second printed circuit board often It is called a “motherboard”, and the printed circuit board inserted into the slit 12 is called a “daughterboard 11. The dielectric leather case 16 also includes a plurality of mounting or snap fasteners (not shown on the paper) ), By enclosing each into the mounting hole of the board, and placing the connector on the motherboard. The reference bracket, collectively referred to as 22, is applicable to the Chinese standard (CNS) A4 standard ( 210 X 297 mm) (Please read the precautions on the back before adding this page >. 丨 Installation · Ordering · Ministry of Economic Affairs Central Standard Jubei Consumer Cooperative Indo 822.3 40,000 21355 Ί Α6 Β6 V. Description of the invention (5) The slits 12 are arranged longitudinally at intervals, so as to accept the ancestors, as described below Say that each iUjJ has a limb 4 [f22a ^ one of the slits 12 ____________ side (on the upper side and the left side), and a cavity 22b on the opposite side of the slit (the right side as seen in the walls 2 and 3). The cavity 22 is separated by walls or compartments to longitudinally separate the long leather shell. The wall device or compartment includes a wall portion 24a that separates each cavity portion 22a and a wall portion 24b that separates each cavity portion 22b. &Quot; Finally, The leather shell 16 includes a plurality of recesses or openings 26 on the outer side of the cavity 22, and Daqiu is aligned laterally with it, the purpose of which is described below. Each recess or opening 26 includes a lower mouth 26 a that opens at the bottom of the leather shell 16. Sign a leather shell formed by a hip made of dielectric material such as plastic. Generally speaking, a plurality of terminals are mounted on the leather casing 16, and the leather casings are arranged at intervals and correspond to a plurality of laterally aligned cavities 22 and openings 26. Yu Xiang m flea I 入 肩 绻 刷 啻 政 # (ie (please read the precautions on the back and then write the clothing page) 丨 installed. Ordered. Central Government Bureau of Economic Affairs 8 Industrial and Consumer Cooperatives, the seal of the Jiji column, the location is close The bismuth is less free of the μ edge, and the contact lines of the other row are spaced inward from the row. Therefore, in practice, each terminal is located on the leather shell 16, and each contact n spider is branched into a military shell to provide Alternately engage along the mating edge of the printed circuit board in each of the two rows of the touch table 0 More specifically, the second equipment 1. Sub-total compliance _ ^^ 3 〇, upper, ninety-two. One each terminal 20 connected to each _ terminal ± 3 Holy second difference ^ Similar I is that it has a bottom 32 > body portion 34 extends upward from the bottom, and-hemp ^ feet 36 from the bottom downward $. The body portion is provided in the form of a barb, from the armor 4 Size X 297 mm) 82.3, 40,000

213dj V. Description of the invention (6) Insert the barbs at the bottom of the grass 26 through the opening 26a of the mouth 26, left & each place, multi-foot 3 6 engage an egg brush. Home ten-two 38 lines ψ.缘 _ 于 g 8 has overhanging type 猓 蒲 # IL-jL- ^ MZ, from which ^ out, while-terminal ΜΑ has mouth-opening type Qiluo "Skewer, it is expected that each terminal 28 will be used for high fan The data signal is transmitted and each g ^ bei / is used as part of the ground or power circuit.丨 H 2 can be seen to the end f 2 flying> The spring contact element 42 is shorter than the spring spring element 44 of the terminal 30. These differences in length allow the alternate terminals to engage the second on the daughter board to the hemp pad, as described above. It can be seen that the spring contact elements 42 and 4 extend into the narrow wall 12 and encounter a reference plane 41, which is on the left side of the slit 12 in the illustrated skull form. In general, the offset device is provided to offset the mating edges of the sub-PCBs against the reference plane 41, so that the spring contact elements 42 and 44 are deflected in the direction of the arrow " a " Waiting for the terminal to be selectively applied to the grounding or signal function, so as to optimize the performance of the joint. The shorter terminal 28 has a short spring contact element 42 in which the solution point of the daughter board forms the length of the mother board after the K-reduced electrical length, which is less, and the standard allows more general operation. The disaster-stricken Houzi 30 Dan has a longer contact element 44, which can be grounded with H, and the input signal is divided into ^^. _ ^^ isolation. '~ ---- K ---- β. Ming H,-still referring to circles 2 and 3, peak f 30 has a bottom, ^ ΜΛ ^ ΛΛΛΛΛ ^ μ ζ ^ ^ t is in ▲.立 ： —Full multi-element 50, from the slit to the size of the paper, apply to the 00 Jia Float Standard (CNS) A 4 specifications (210 X 297;;) (please read the precautions on the back before writing Page)-Installed. Ordered-Printed by the Ministry of Economic Affairs Central Standard Ά X Consumer Cooperative 82.3. 40,000 213517 A6 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs Fifth, Invention Description (7) = Plane extends sideways into the money 12 . _, When the sub-printed electricity is inserted into the slit 12 in the direction of arrow B ", the element is offset from the male one in the direction of arrow " A ", a mj ^ is on the reference plane 41 and deflects the spring contact Elements 42 and 44 are a predetermined and fixed amount. In addition, the resilient element 50 can provide redundant electrical contact S paths, which can be used to further reduce contact inductance. This will generally be designated as a ground terminal, because a signal terminal is generally not exposed, and a capacitor with a long path length may be coupled to other signal terminals. The present invention contemplates a method and configuration for adjusting the impedance of the electrical connector 10, which is connected to a circuit having a known impedance. When the connector 10 is an edge connector, the circuit will be defined by the circuit on the printed circuit board. As mentioned in the M background above, an ideal joint will be "Quick", which may have little effect on the cross-link value. Therefore, the object of the present invention is to "adjust the pliers" or change the impedance of the electrical connector 10 in order to match the known impedance of the fan system or the road to which the connector is connected. This known impedance is often referred to as the " characteristic M impedance of a circuit, but is generally known. For example, a manufacturer of an electrical connector often supplies the characteristic impedance value of a circuit from a buyer, and the circuit is the one that the master will pass the specific connector to. Even if this situation does not occur, the impedance of any circuit can be measured by various devices, such as a time-domain reflectometer, which uses an electrical analogy to a radar system, and other measurement or analysis devices. The impedance of any particular connector is also measured from the input to the output, and the same is used. The instrument is a time domain reflectometer. If the impedance of the connector does not match the impedance of the cross-connect circuit, the present invention contemplates a method and structure for adjustment Measures or change the impedance of the connector, the value may be close to the ground fuse (please read "Notes on the back and then on the nest page"). I install and order _ this paper standard is common to China S home oak standard (CNS) A 4 specifications (210 X 297 public goods) 82.3. 40,000 9 Printed by BK Industrial and Consumer Cooperatives, Central Bureau of Standards, Ministry of Economic Affairs ¾ 2l3bV? A6 B6 V. Description of invention (8) Impedance of the cross-connect circuit 0 Clearly, refer to 4 and 5, the same reference is the code Chang Qilu is used for the same components described above in relation to Gu 2 and 3. Yu Tian 4 and 5 can see the original part of the terminal 28 and 30 or the area of the hook 3 / T is larger than the barb 34 shown in the coils 2 and 3. The barb 34 'is installed in the large recess of the joint leather shell or The opening 26r is basically, in the present invention shown in ® 4 and 5 in the form of a die, the barb 34 is the same length but wider than the barb 34 of the specific form exemplified by the circles 2 and 3. As will be described in detail below, by selectively changing the area of the U portion of each terminal or the barbs 34, 34 ', the capacitance of each terminal is avoided selectively, and therefore its impedance can be changed to roughly match the circuit. Knowing the impedance, the circuit is interconnected by the terminals and / or connectors.颖 6 颙 shows another specific form, by exemplifying an alternative method / configuration for changing the ceremonial part of the terminals 28 and 30. Specifically, it can be seen that the barb 34 '' of the terminal 28 in _6 is the same width as the barb 34 of the wall 1. However, the inverted barb 34 ″ correction barb 34 is short, and therefore its area is changed, which in turn changes the poor capacity of the terminal, and therefore its impedance. In the specific form of the idler 6, the leather case 16 can be manufactured with recesses or openings 26 of a fixed size, and only the structure of each terminal 28 and 30 needs to be changed. Similarly, the Min 7 can be compared with the ring 4, where it can be seen that a barb 34 is provided with the same length and width as the barb 34 '. ..., and in the specific form of circle 7, the area of the body portion or barb 34 ,,, is changed by the opening 60 formed in the barb. Therefore, the same leather case can be manufactured as a recess or opening 26,0 with a fixed width, and only the structure of the barb needs to be changed in order to adjust the resistance of the wrong electrical connector. Home Standard (CNS) A 4 secret (2iG χ 297 —------- __ ____ 10 82.3. 40,000 (please read the notes on the back first and then write this page) 丨 installed_ ordered. 2135J7 A6 B6 Ministry of Economic Affairs Central Standard Ά X Consumer Cooperative Printed V. Description of Invention (9) Ming 8 Min shows how to change the capacitance of the terminal, and how the electrical connector's interference is called wax. In the Min 8 gate, the dotted line μ means 1 The desired impedance of the electrical connector 'would ideally match the known impedance of the relevant circuit. Line 64 represents an impedance, which is shown as a circle, or the required impedance is high. To reduce the impedance (ie, reduce line 6 4) '灰! 立 ._ 呗 扣. According to the concept of the present invention, the main part 34, '34 two'-β two 'a main 4 two ^ ^ and reduce the impedance to the best represented by the line 62 or Know the impedance. It should be understood that lines 64 and 65 are purely indicative of average or collective fixed impedance values, and are for illustrative purposes only. On the other hand, if it is clear that the actual measurement is different, each line will not be smooth, instead it will be " sawtooth " 0. Conversely, line 66 indicates the case where the impedance is too low. In these cases, the capacitance It must be reduced to increase the impedance to drive the desired or known impedance indicated by the line 62. Also according to the concept of the present invention, this variation or " adjustment " can be achieved by reducing the effective area of each terminal body part To achieve this. The present invention also conceives a new structure for the electrical connection of an electrical connector, such as the edge connector shown in Figures 1 to 7. At the connector 10, each terminal "and 30 may contain alternating signals Terminals, but some of the terminals may include ground terminals. In fact, all " long " terminals 30 may include ground terminals. The requirement is to reduce the inductance of any connector. However, as explained by D, it is assumed that each terminal 3 is called Connected to the printed circuit board 40 is connected to the ray of the pool trace, and its equivalent spring element 5 is connected to the ground on the edge of the sub-board. The individual ground traces on the board 40 are all part of a common ground circuit Parts, as seen in many edge joints. 'Reduce the inductance from these ground terminals to the common ground circuit. More specifically, see m2 (Yu Tonggu 3 to 7), which can be seen at each end; 28 82.3. 40,000 (please read the precautions on the back before filling in the clothes Page) 丨 Installed. Ordered 213517 V. Description of the invention (i〇) and 30 ′, especially the ground terminal 3〇, with at least two branches for M. In order to take the order on the surface of the printed circuit board 4〇 — should be noted, Although the foot 36 is exemplified as being surface-mounted to a stitch, at least one of the legs may include a tail or one of the pins in the board-queue _.._ 二. 越 .Binding. The tail is electrically connected to or on the board One is plated through the opening. # 一气 对 羊 — 端 夺% provides two feet, which are coupled to the board as early as a circuit trace. This structure has a larger pin surface. '-.,-Product $ 増. Body 〇, reduced? , Separate electricity, sense. This structure is printed by Shenzhou Central Bureau of Standards, the 8th Industrial Consumer Cooperative, and Shen, the one who receives it from the two makes the two legs open, so that the time is also felt, so the spirit or weight is regarded as an example of details. The ground legs will help the circuit to be spaced apart from each other. The larger one provides an improved and improved solution to the characteristics of the invention. Instead of the larger terminal being separated from the high-speed connection, the printed trace is separated, and the contact surface is installed on the board. The performance at point 0 can be specific. Therefore, the limited contact surface is especially useful for reducing the top of the printed circuit board. There is one more common ground on the printed circuit board. The board is between two rows of various other electrical products. When the contact is increased at high speed, etc., it is changed to other specific, current examples and tools, and the present invention does not have a foot 36, as described above, .y Circuit wire 38. At this time, the circuit on the printed circuit board is used to insert the circuit trace concept on the printed circuit board to provide a small voltage drop to the circuit trace for the two legs to be powered. The terminal is a part of the ground circuit trace. Keep the route through an area between the feet. The application reduces the area to the electrical form where the signal terminals are less connected in series, without being separated from it. The form should be limited in all respects to the

82.3. 40,000 (Please read the precautions on the back before writing this page) i pack · order ·

Claims (1)

213¾5 'Ί Α7 B7 C7 D7 / VI. Application for printing by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economics of the Temple of Fanli 1. A method for adjusting the impedance of an electrical connector, seal # Various inflammations ^ · Electrical components, multiple terminals to accept Cavity, the position is directly connected to the opening seat, and it is fast to receive a _ ± _ ^ — J £ 分 '^ £ fixed channel in its-narrative shell, enclosing at least some other places Shu Geyi's fixed area, mention m ~: Selectively installed in the group of leather, all terminals outside the connection 5 ^ a tail for connecting the terminal to their respective circuits, and a fixed part, and the connection The interface part is divided into two parts. The connection interface part is a major enemy @, and includes a contact mouth, and-contact is located above it. Each group of terminals has a fixed plane # 綖 平面 翟 的 定 #, its surface color: Shi-Duantu 5 upper fixed part, to change the secret of each group of terminals · ~ ------------------------- ^ —, (select "ϋ Tour Α !, to 'ί — complex ^, without changing the size of the connection interface; You choose one of the leather shell, the size of 1 --------- is also selected within it- The Selection Group_JIL ^ Part; and A into the end of the selection group / to the leather shell. If applying for the special train Fanyuan No. 1 2 w > ---- for the method, of which 2 . Clothing paper a scale is suitable for bh home sample iMCiiS) T 彳 計 tS (21〇x297 ^ J) ~ (please listen to the notes on the back first Han Han · " Basic • Installation •• Play · 13 Six 'patent application scope C7 D7 The Ministry of Economic Affairs, Ministry of Economic Affairs, Pyongyang Consumer Engineering Cooperative Society, Inno ^, the face-shaped fixing part has a substantially same width, and each of the part group terminals has a different height in the direction of enclosing the leather case, so that the part You can insert the same group into the same Geyi. 3. As for the method of applying for the second item of the Patent Fan Garden, stinky ^ stated that each of the & —the bottom of the second two is extended, and & 0 4 is arranged on it. • For the method of applying the third item of the Patent Fan Garden, Wherein the fixed part is a reverse fishing, which fits in the cavity of the fixed area. 5 · As in the method of applying for the first item of the Lifan Garden,-at least one of which, the terminal is present, to reduce the surface area of the fixed part of the enemy. 6. An error-adjusting two electrical connector meets with it ^ £ ^^ 4Μ81 ~ Λ: (a) g: for a dielectric connector leather i., W in its internal posture JLJL value terminal 'The leather case includes a socket for W to receive a complementary matching _ heavy component, multiple terminals to accept Cavity, which is connected to the socket, fits into a part of a terminal that receives a terminal therein, and a plurality of fixing regions that fit into a fixed part of the terminal that receives a terminal to effectively fix the terminal to the leather case, (b) Provide Pan-Emperor Cockroach $, for "installed in the Gezhe, ~ 1 = ~ ^ r ^ p ~~» ~~ for __ 交 ：： 迷 所 · 迷 端到 一 开 ， 上 上 上ϋ has a fixing part to hold the terminal to the Geyi, the interface of the interface is the same as Djiu, including a flexible contact, for M to contact the complementary pair of electrical parts Respective electrical components, each group (please read the precautions on the back and then fill out this page. Install · • Play * • The ft scale of the line paper is applicable to China's a standard (CNS) A4 specifications (210x297 ) U A: ΒΊ Cl D- 6. The patent application park includes a substantially flat-shaped part of the sister-in-law with different surface areas, m groups of end f < end 1 of the book 1 ^ -bit "-recognition | 4: each group Impedance characteristics of the terminal; (c) ^ m royal end, with a terminal that is connected to an I impedance. (D) Insert the selection terminal into the leather case; and U) Repeat steps (〇 and (d ), Until each child is inserted into all terminal clothing limbs of Digeyi 0 < ^ 7 · If applying for a patent Fan Yuan (£ 6 hard): method, where 8 of each of the groups are mentioned. If applying for a patent Fan Ji < 6 ^ > Method, in which each of the arm and the silicon fixing part protrudes from a bottom in a hanging manner, and is over there .: Set to 0 9. If applying for patent Fanyuan Section 8 , Wherein the fixing part is a barb that presses against the cavity of the fixing area. 10. As in the method of claim 6 of the patent application park, wherein the body of the at least one fan terminal is in the plane of the body There are openings in it to reduce this ................................ ----- -------------------- ^ .... ...... The table is more precise one < r —-one one, ^. — A method of impedance of an electrical connector, the electrical connector will be immersed in 'Yuqi-Ershishang ": Lj Youzhi-multiple circuits • The method includes steps; Yi, pieces' multiple terminal receiving cavities are connected to the slit and fit in & connect one 81 · 4. 5.000 (H) A 7 B7 C7 D7 Central Government Bureau of Economics ^: Printed by the Industrial and Consumer Cooperative. ¾ Part of the patent application terminal of the six 'patent, and a number of fixed areas, which are integrated to undertake A fixing portion of a terminal 'to effectively fix the terminal to the Geyi, (b) provide each terminal), for defeating the Geyi' each first terminal has a connection interface portion and a tail portion for Connect the first terminal to a circuit, and a part of the other, separate from the connection interface part, and include a fixing element on it to fix the second leather case, the first The connection interface portion of the terminal is the same, and includes a second elastic contact member, which protrudes from a bottom and has a contact structure for contacting the complementary Si pair electrical component ; Each terminal of the flea, the first terminal has a large Jiu-ping rabbit-type man each has a yin face g; same as-, a second part of the other group of UtAJli, to change the impedance of the first terminal of each paper- ------ · '—- 一-～ —----- ~ __. _____— characteristic; —— ~ (c A3, Kun Yijin played Since, the Shengyi has a connection interface part, a tail part for connecting the second terminal to the circuit, and a die part, which is separated from the connection interface part and includes a fixed part, To fix the first terminal to the leather case, the interface portion of the second terminal is the same, and includes a second elastic contact member extending from a bottom and having a A second contact portion is provided on the second contact member for contacting the respective electrical component of the complementary paired electrical component. The second contact component is longer than the first contact component, each group Each terminal of the first terminal has a roughly flat surface, the original part of the terminal, each has a surface other group of second terminals 4 ^ ^ --- a 〆 ^ JiM part, w changes the second terminal of each group Resistance: Features; (Guess to read the precautions on the back and then fill out this page) • R.. Line book recognition of the appropriate size t W w 歓 榀 平 (CNS), [M said grid (210x297 public k) 16 81 . 4. 5.000 (H) 6. Applying for a patent, the Ministry of Economics + the Central Bureau of Privatization & P &B; Cooperative Indo-if /: ^ 16 2l3bi The various items mentioned in the above description are similar to a pending circuit and a requirement A terminal with a known impedance that is intended to be connected to the interface; and (e) insert the selection terminal into the Geyi; (f) repeat steps (c) and (d) until each terminal is inserted All the terminals of Yi Yi accept the cavity. 12. Please specify the width of one end, and the benign part of each group of the first terminal has a different height in the direction of enclosing the leather case, and the body part of each group of the second terminal has a substantially same width, The body part of each set of second terminals has a different height in the direction of insertion into the leather case. 13. For example, the method of patent application "item", in which the contact arm and the fixed portion each extend from a bottom in the form of an arm, and yttrium is placed at 0 14 above it. The method of item 13, wherein the fixed portion is a step fishing 'pressed into the cavity of the fixed area. 15. For example, please ask the patent Fan Yuanliu to describe the large Jiu plane body part of the Duanyu group It has an opening in it, which reduces the surface area of the body 4 [. Each has a known impedance of I-a thunderbolt's stand: 1 shell for 4 x. In 1 loyal child, the same socket in the same period , Recognition and Acceptance-Mutual Jiang's Breath Ί This paper-like degree is used in 1IB's home-like Bijia ... Touch ⑽X2H) ...................... :: :… -IJ :: ···: ·. • Pretend .............................. Hit: ......:. Beauty ............... line (¾ read the precautions on the back before filling in this page) There are leather shells including ———.—-— · —____ --name ; 17 2136 i B7 C7 D7 Sixth, the patent application is combined with its famous terminal receiving cavity, and the position is connected to the socket '------- — Ι_ ···' Π. ___ " 内 丞Pick up— And a plurality of fixing areas, each fixing area fits in (please read the precautions on the back and then fill in " this page>) to receive a fixing portion of a terminal to effectively fix the terminal to the leather case, at least Part of the cover includes a fixing area that is different from at least part of the other to hold the terminal fixing portions of different configurations; the color and electrical terminals 3 'are selectively installed in the set of leather cases, all terminals have a connection interface The part, a tail part, is used to refer to their respective circuits, and a fixed part is generated, which is separated from the connection interface part. The connection interface part is too coincident and includes a contact arm and a contact The part is located on it, each group of terminals has a substantially flat fixed part, and its surface area is different from the fixed part of other groups of terminals to change the impedance characteristics of each group of terminals; thus the resistance of the electrical connector can be changed without changing The size of the connection interface p is determined by encountering a specific set of the terminals, has a desired predetermined impedance that is substantially similar to the known impedance, and selects a leather case with a fixed area size To be effective within Undertake the fixed part of the terminal of the selection group. 17. One "one" head, the thunderbolt is connected and connected to a plurality of | electrical // head leather shells each with a known impedance for its internal terminals , So that the sub is connected to the socket, which fits into one of the four points of a terminal, and a plurality of fixing areas, which are fitted to the fixed part of the terminal, p effectively fixes the terminal to the Leather case, * ♦ · " · * »:: y ^ .. ........ .. _____ __________ — _____ 4 Contains: At B7 C7 D7 6. Apply for Douli Fan Tuan has a fan interface Part, a tail, for supplying the terminal to a circuit, and a body part, which is separated from the connection interface part, and has a fixing part on it to hold the terminal to In the Geyi, the connection interface portions are substantially the same, including a flexible contact portion for receiving the respective electrical components of the complementary paired electrical components, and the terminals of each group include the main body in a substantially plane Part, which has a surface area different from that of other groups of terminals, to change the impedance characteristics of each group of terminals Installed on a printed circuit y, the latter has (please read the precautions on the back and then fill in the Luan page so that the impedance of the electrical connection can be changed without changing the size of the interface part. The terminals of a specific group select each terminal and have one, and the pre-impedance is roughly similar to the known impedance of a specific circuit. ν / ι8 ·-, the Ministry of Economic Affairs, the Central Standards Bureau, the beta work permits the cooperative to print the traces of multiple lightning paths, forming the two parts of the common ground circuit. The connector includes: a + t Geyi, with a 'Slot' is used to receive the edge of a pair of daughter boards in it, and a plurality of terminal receiving cavities, which are connected to the slit for installing multiple signal terminals and multiple ground terminals; multiple signal terminals and multiple A ground terminal is along one side of the slit, a bit array, the signal terminal and the connector, and a contact arm extends from it, and there is a target point for contacting the paired daughter board One of the viewing pads, the period of the signal terminal is shorter than the contact arm of the ground terminal, the terminal has at least one tail part for the circuit traces installed on the circuit board, and the ground terminal There are at least two spaced apart tails for electrical and mechanical cross-linking to each circuit trace, the latter forming part of a common ground circuit. 19 This paper scale is applicable to Chinese Η home sample standard (CNS) < H regulation fine 0x297 public fantasy