TWI384693B - Terminal carriers and method of assembling the terminals - Google Patents

Description

Terminal material board and terminal assembly method

The invention relates to a terminal material board and a terminal assembly method, in particular to a terminal assembly method for assembling the terminal material board formed by a stacking method on a circuit board.

At present, the signal switching mechanism is widely applied to the connection between two electronic components (such as a chip module and a circuit board), and a stable signal transmission is usually performed between the two electronic components through a detachable connection manner. Generally, the signal switching is performed. The mechanism transmits signals through a plurality of terminals. With the development of technology, the functions carried by the electronic components are increasing, so the number of electrode points at the output end of the electronic components is required to be increased, and the signal switching mechanism connected thereto is connected thereto. The number of the terminals is correspondingly increased. Since the volume of the electronic component is getting smaller and smaller, the signal switching mechanism is required to be correspondingly smaller. In order to meet the requirements for the number of terminals, the size is also reduced. The development requires that more of the terminals must be arranged at a high density per unit area.

The following is a conventional terminal assembly method: (1) providing a circuit board on which a plurality of contact pads are arranged at intervals; (2) providing a metal piece on which a terminal strip is punched, The terminal strip has two bases disposed opposite to each other, and between the bases a plurality of connecting plates are arranged in the partition, and a plurality of unbent terminals are arranged on the same side row of each of the connecting plates; (3) a plurality of the terminals are respectively bent upward; (4) the terminals are The tape is placed above the circuit board from top to bottom, and each of the terminals is in contact with each of the contact pads; (5) a plurality of the terminals are fixed to the circuit board by metallurgical bonding; (6) A plurality of the terminals are separately separated from the connecting plate, and the connecting plate is removed.

However, the terminal assembly method described above has disadvantages: 1. During the assembly process, since the arrangement of a plurality of the terminals on the circuit board is determined by the arrangement of a plurality of the terminals on the metal piece, After each of the terminals of the metal piece is bent upward, a large gap is formed between each of the two adjacent columns, that is, the distance between the terminals of the two columns is relatively large, so most of the terminals are After being implanted on the circuit board, the distance between the terminals of each column is also relatively large, so that the number of the terminals arranged on a unit area is relatively small, which does not meet the development requirements of high-density arrangement; When the terminal is separated from the connecting plate, a sufficient separation space is required between the terminals of the columns and the connecting plates adjacent to each other, so that the terminals of the columns cannot be arranged too tightly, and the columns are arranged. The terminal cannot exceed the connecting plate which is not connected to and adjacent thereto, so the number of the terminals which are simply punched out on the metal piece is limited; 3. Since the number of the terminals punched out on one of the metal sheets is limited, but the number of the terminals of the electronic component is required to be satisfied, the area of the metal piece must be enlarged to punch out the required number. The terminal, when the metal piece is assembled on the circuit board, requires the circuit board to have a large assembly space, that is, the required circuit board area is relatively large, and thus does not meet the development requirements of the miniaturization. .

In view of various contradictions in the above-described terminal assembly method, the present invention provides a terminal assembly method capable of simultaneously solving the above contradictions.

It is an object of the present invention to provide a terminal material board and a terminal assembly method capable of making full use of an assembly space to achieve high density alignment.

In order to achieve the above object, the present invention provides a terminal assembly method, the steps are as follows: a carrier is provided, a surface of the mounting plate is provided with a mounting area, and a plurality of contact pads are arranged in the mounting area at intervals; a terminal strip having a first metal member and a second metal member stacked one on top of the other; one of the first metal members is disposed above the mounting region, and has a relative setting The first base of each of the first bases is provided with a plurality of first fixing holes, and the first base portions are arranged with a plurality of first extending plates spaced apart from each other, and the first one of the two adjacent first extending plates Forming a first gap between the plates, and a horizontal gap of the first gap along a plurality of the first extending plates is greater than a spacing of the contact pads of any two adjacent rows, and further, each of the first gaps The same side of the extension plate is connected in series to the plurality of first terminals of the inclined arrangement, and is arranged on the first extension The first terminals of the board are respectively in contact with a plurality of the contact pads that are not adjacent to each other; The second metal member is provided above the first metal member, the second metal member has two opposite second base portions, and the second base portion is respectively stacked on the first base portion a plurality of second fixing holes are arranged on each of the second substrates, and a plurality of the second fixing holes are respectively aligned with a plurality of the first fixing holes, and the first base portions are spaced apart from each other. There is a plurality of second extension plates, and each of the second extension plates is lower than the second base portion, and a second gap is formed between the two adjacent second extension plates, the second gap being wider than each The first extension plate and the first terminal connected thereto are horizontally wide in a direction in which the plurality of second extension plates are arranged, and the second gap is horizontally spaced apart in a direction in which the plurality of the second extension plates are arranged. The two contact pads are located in any two adjacent rows, and the same side of each of the second extension plates is connected in a plurality of rows to form a plurality of second terminals, and the second end is of a size and the first The terminals are the same, and each of the second extension plates is connected to the first a terminal that is horizontally narrower than the first gap along a direction in which the plurality of second extension plates are arranged; and two second base portions are stacked on the first base portion from top to bottom, the first The second extension plate enters the first gap, the first extension plate also enters the second gap, and each of the second extension plates is alternately spaced from each of the first extension plates, and each of the second extensions The plate is located at the same height as each of the first extension plates, and at the same time, the plurality of columns of the second terminals are respectively in contact with the plurality of the contact pads not adjacent to each other, and the portion of the second terminal spans the Above the first extension plate, a portion of the first terminal also spans over the second extension plate; a step of soldering the carrier plate and the terminal material plate such that each of the first terminal and each of the first terminals The second terminals are respectively soldered and fixed to each of the contact pads; The terminal strip performs a stripping step such that each of the first terminals is separated from each of the first extension plates, and each of the second terminals is separated from each of the second extension plates.

Compared with the prior art, in the compounding step, each of the second extension plates respectively enter each of the first gaps, and each of the first extension plates also enters each of the second gaps, and each of the second extensions The plate is spaced apart from each of the first extension plates so that the second terminals disposed on the second extension plate can enter the first two columns arranged adjacent to the first extension plate. Forming a gap between the terminals, and forming the second terminal disposed on the second extension plate to enter between the first terminals of the adjacent two columns arranged in the first extension plate In the gap, the finite assembly space is utilized to achieve a high-density arrangement between a plurality of the first terminals and a plurality of the second terminals to meet the development requirements of miniaturization.

The terminal material board and terminal assembly method of the present invention will be further described below with reference to the accompanying drawings and the first embodiment.

Referring to the first figure and the second figure, the present embodiment provides a terminal material plate (not labeled) including a first metal member 1 and a second metal member 2: the first metal member 1 is stamped by a metal plate. The first base portion 11 is disposed opposite to each other, and the first base portion 11 is spaced apart from the first base portion 11 by a plurality of first fixing holes 111, and the first base portions 11 are along the row direction. A plurality of first extension plates 12 are disposed at intervals A, and a first gap 13 is formed between each of the two adjacent first extension plates 12.

a plurality of first terminals 14 are disposed along a column B in the same direction of the same side of each of the first extension plates 12, and the first terminals 14 located in the same column are connected to the same a first extension plate 12, each of the first terminals 14 having a first welding from a side of the first extension plate 12 extending along a direction in which most of the first extension plates 12 are arranged (ie, a row direction A) a portion 141, and a first contact arm 142 extending upward from the first soldering portion 141, the first soldering portion 141 being at the same height as the first extension plate 12, the first contact arm 142 facing The first extension plates 12 that are not connected are obliquely extended, and a third gap 15 is formed between the first contact arms 142 of the first two terminals of the adjacent two columns to communicate with the first gaps 13.

Referring to the first, third, and fourth figures, the second metal member 2 is formed by stamping another metal plate having two opposite second base portions 21, each of the second base portions 21 A plurality of second fixing holes 211 are provided in the row direction A. A plurality of second extension plates 22 are disposed between the second base portions 21 in the row direction A. The second base portions 21 and the second extension plates 22 are connected by a connecting portion 221, and The second extension plate 22 is lower than the second base portion 21, and a second gap 23 is formed between the two adjacent second extension plates 22. The second gap 23 is wider than the first extension plate 12. The first soldering portion 141 of the first terminal 14 connected thereto is horizontally wide in a direction in which the plurality of the second extending plates 222 are arranged (ie, the row direction A).

A plurality of second terminals 24 are disposed on the same side of the second extension plate 22 along the column direction B, and are identical in size to the first terminal 14, and the second terminals 24 located in the same column are connected to the same The second extension plate 22 has a second soldering portion extending from one side of the first extension plate 12 along a direction in which the plurality of the second extension plates 22 are arranged (ie, the row direction A). 241, and a second contact arm 242 extending upward from the second soldering portion 241, the second soldering portion 241 is at the same height as the second extending plate 22, and the second contact arm 242 is facing not The connected second extension plates 22 extend obliquely. The second extension plate 22 and the second soldering portion 241 of the second terminal 24 connected thereto are along the majority The horizontal extension width of the second extension plate 22 (ie, the row direction A) is narrower than the first gap 13 and the third gap 15, respectively, and the second row of the second terminals 24 of the adjacent two columns A fourth gap 25 is formed between the two contact arms 242 to communicate with the second gap 23.

The second metal member 2 of the terminal strip (not labeled) and the first metal member 1 are stacked on top of each other on a carrier plate 3. The stacking and mounting process is referred to the terminal assembly method described below.

The steps of the terminal assembly method of the present invention are as follows:

(1) Please refer to the second and fifth figures, and a support plate 3 is provided. The upper surface of the support plate 3 is provided with a mounting area 31, and a plurality of contact pads 32 are arranged in the mounting area 31. The spacing between the two adjacent rows of the contact pads 32 is smaller than the spacing of the first gaps 13 along the direction in which the plurality of first extension plates 12 are arranged (ie, the row direction A) and the second gap. 23 along a plurality of the second extension plates 22 arranged in a direction (ie, the row direction A), the carrier plate 3 is provided with a plurality of mounting holes 33 at the edge of the mounting region 31, and a plurality of positioning posts 4 are inserted into the bearing In the mounting hole 33 of the plate 3. The height of the positioning post 4 beyond the upper surface of the carrier 3 is approximately the thickness of the first base 11 and the second base 21. In other embodiments, the positioning post 4 can be first fixed to the upper surface of a working platform (not shown), and then the mounting hole 33 in the carrier 3 is inserted into the positioning post 4, so that The carrier plate 3 is positioned above the working platform (not shown), and the height of the positioning post 4 beyond the upper surface of the carrier plate 3 is also about the first base portion 11 and the second base portion 21 The thickness after stacking.

(2) Referring to the fifth and sixth figures, the batching step is performed. First, the first base portion 11 of the first metal member 1 is controlled to insert the first fixing hole 111 from the top to the bottom. In the positioning post 4, each of the first extension plates 12 driven by the first base portion 11 and the second terminal 24 connected thereto enter the second terminal 24 In the mounting area 31, the first soldering portions 141 of the plurality of first terminals 14 are respectively in contact with the plurality of the contact pads 32 that are not adjacent to each other.

Referring to the seventh to tenth drawings, the second base portion 21 of the second metal member 2 is controlled, and the second base portion 21 drives the second extension plates 22 and the connected portions thereof. The second soldering portion 241 of the second terminal 24 is moved along the first path 5 inclined with respect to the carrier plate 3 from the top to the bottom in the third gap 15 by a distance, and then perpendicular to the A second path 6 of the carrier 3 enters the first gap 13 via the third gap 15 (see FIG. 8), while the second fixing hole 211 is nested in the positioning post 4 and aligned The first fixing holes 111 and the plurality of second soldering portions 241 of the second terminals 24 are respectively in contact with the plurality of the contact pads 32 that are not adjacent to each other. In other embodiments, the second metal member 2 may be inclined relative to the carrier plate 3, and the second base portion 21 drives the second extension plate 22 and the second terminal 24 connected thereto. The second welded portion 241 enters the first gap 13 via the third gap 15 .

Referring to the tenth to twelfth drawings, after the above steps, the second metal member 2 of the terminal strip (not labeled) and the first metal member 1 are stacked one on another, the second base portion 21 Stacked above the first base portion 11, each of the second extension plates 22 is spaced apart from each of the first extension plates 12 and located at the same height, and each of the second extension plates 22 is connected thereto. The second soldering portion 241 of the second terminal 24 is located in each of the first gaps 13 , and each of the first extension plates 12 is located at the first soldering portion 141 of the first terminal 14 to which the first terminal 14 is connected In each of the second gaps 23, a limited assembly space is fully utilized. In addition, the first contact arm 142 of the first terminal 14 is located in each of the third gaps 15, and the second contact arm 242 of the second terminal 24 is located in each of the fourth gaps 25, And the first contact arm of the first terminal 14 The second contact arm 242 of the second terminal 24 also spans the top of the first extension plate 12, so that the first terminal 14 and each column of each column are arranged. The second terminal 24 achieves a high-density arrangement and meets the development requirements of miniaturization.

(3) performing a soldering step on the carrier 3 and the terminal strip (not numbered), and the melted contact pad 32 can be coupled to the first soldering portion 141 of the first terminal 14 or the The second soldering portion 241 of the second terminal 24 is fused such that the first terminal 14 and the second terminal 24 are stably fixed to the carrier 3 .

(4) performing a stripping step on the terminal strip (not numbered) such that the first soldering portions 141 of each of the first terminals 14 are separated from each of the first extension plates 12, and each of the The second welded portion 241 of the second terminal 24 is separated from each of the second extension plates 22, respectively.

(5) separating each of the positioning posts 4 from the carrier plate 3. In the present embodiment, each of the positioning posts 4 is directly removed. In other embodiments, the carrier plates 3 are operable from the A work platform (not shown) is lifted up to separate the carrier 3 from each of the positioning posts 4.

(6) the first soldering portion 141 of each of the first terminals 14 and the second soldering portion 241 of each of the second terminals 24 and the first extending plate 12 and each of the second portions After the extension plate 22 is separated, one of the first base portion 11 and the second base portion 21 is simultaneously cut off, and then the other first base portion 11 and the second base portion 21 are simultaneously operated, and the respective columns are arranged from the column direction. The first extension plate 12 and each of the second extension plates 22 are removed, and after the assembly is completed, each of the first terminals 14 and each of the second terminals 24 are densely arranged on the mounting plate 3 In area 31.

After the above assembly is completed, the lower surface of the carrier plate 3 can be further implanted. a plurality of spaced-arranged solder balls (not shown), and a conductive line disposed between each of the solder balls (not shown) and each of the first terminals 14 or each of the second terminals 24 (not shown), a signal switching mechanism (not shown) can be formed, and the signal switching mechanism (not shown) can be soldered to a circuit board by the solder ball (not shown) (not shown) The first contact portion 142 of the first terminal 14 and the second contact portion 242 of the second terminal 24 are electrically connected to an electronic component (not shown). Information of an electronic component (not shown) is transmitted to each of the conductive lines (not shown) of the carrier 3 through the first terminal 14 and each of the second terminals 24, and then each of the conductive The line (not shown) then passes the information to the circuit board (not shown).

Referring to FIG. 13 , the second embodiment of the terminal assembly method of the present invention is different from the first embodiment in that the second metal member 2 and the first metal are first provided before the carrier 3 is provided. The first member is stacked on top of each other by first providing a support platform (not shown), and placing the first metal member 1 above the support platform (not shown), and then the first The two metal members 2 are stacked above the first metal member 1 from top to bottom, and the state when the second metal member 2 and the first metal member 1 are stacked one on another is the same as that of the first embodiment, that is, The second base portion 21 is superposed on the first base portion 11 , the second fixing hole 211 is aligned with the first fixing hole 111 , and each of the second extension plates 22 and each of the first extension plates 12 . Arranged at staggered intervals and at the same height.

When the batching step is performed, the first base portion 11 and the second base portion 21 simultaneously take out the second metal member 2 and the first metal member 1 from the support platform (not shown). And maintaining the position between each of the second fixing holes 211 and each of the first fixing holes 111, and mounting the first metal member 1 and the second metal member 2 to the carrier plate 3 In the installation area 31, Compared with the first embodiment, the first soldering portion 141 of each of the first terminals 14 and the second soldering portion 241 of each of the second terminals 24 can be accurately contacted with each of the contact pads 32 at the same time. Please refer to Figure 11 for the assembled state.

The subsequent steps are the same as in the first embodiment and will not be repeated here.

Compared with the prior art, the terminal material board and the terminal assembly method of the present invention have the following advantages: 1. In the compounding step, each of the second extension plates is arranged at a staggered interval from each of the first extension plates, and each of the second The second soldering portion of the extension plate and the second terminal to which the extension board is connected respectively enters each of the first gaps, and the first soldering portion of each of the first extension boards and the first terminal to which the first extension board is connected And entering the second gaps separately, and fully utilizing the limited assembly space; 2. the first contact arms of the first terminals of each column respectively enter each of the third gaps, and the second terminals of each column The second contact arm enters each of the fourth gaps, so that the first terminals of the columns and the second terminals of the columns are arranged at a high density, which meets the development requirements of miniaturization; 3. the second metal is to be The first welding portion of each of the first terminals and the second welding of each of the second terminals when the first metal member is stacked on the carrier plate The portion can be in precise contact with each of the contact pads at the same time.

1‧‧‧First metal parts

11‧‧‧ First Base

13‧‧‧First gap

14‧‧‧First terminal

15‧‧‧ third gap

2‧‧‧Second metal parts

22‧‧‧Second extension board

221‧‧‧Connecting Department

241‧‧‧Second welding department

242‧‧‧second contact arm

31‧‧‧Installation area

32‧‧‧Contact pads

5‧‧‧First path

6‧‧‧Second path

111‧‧‧First fixing hole

12‧‧‧First extension board

141‧‧‧First Welding Department

142‧‧‧First contact arm

21‧‧‧ Second Base

211‧‧‧Second fixing hole

23‧‧‧Second gap

24‧‧‧second terminal

25‧‧‧fourth gap

3‧‧‧ board

33‧‧‧Installation holes

4‧‧‧Positioning column

A‧‧‧ direction

B‧‧‧ direction

The first figure is a partial exploded view of the terminal material plate and the carrier plate in the first embodiment of the present invention; the second figure is a top view of the first metal piece in the terminal material plate of the first figure; the third figure is the terminal of the first figure a top view of the second metal member in the material panel; the fourth view is a side view of the second metal member in the terminal material plate of the first figure; The fifth figure is a partial schematic view of the first metal member in the first embodiment of the present invention when it is not mounted on the carrier plate. The sixth figure is the first metal member in the first embodiment of the present invention when the first metal member is mounted on the carrier plate. 7 is a partial schematic view of the second metal member in the first embodiment of the present invention when it is not mounted on the carrier; the eighth view is a side view of the seventh figure; and the ninth is the first embodiment of the present invention. Partial side view of the second metal member in the example when the second metal member is mounted on the carrier plate; the tenth view is a partial schematic view of the second metal member in the first embodiment of the present invention when the carrier plate is mounted on the carrier plate; 12 is a top view of the terminal in the first embodiment of the present invention; FIG. 13 is a top view of the first metal member and the second metal member in the second embodiment of the present invention; A partial schematic view when not installed on the carrier.

1‧‧‧First metal parts

11‧‧‧ First Base

13‧‧‧First gap

14‧‧‧First terminal

22‧‧‧Second extension board

221‧‧‧Connecting Department

241‧‧‧Second welding department

242‧‧‧second contact arm

2‧‧‧Second metal parts

32‧‧‧Contact pads

12‧‧‧First extension board

21‧‧‧ Second Base

141‧‧‧First Welding Department

142‧‧‧First contact arm

23‧‧‧Second gap

24‧‧‧second terminal

3‧‧‧ board

4‧‧‧Positioning column

Claims (14)

A terminal material plate comprising: at least one first metal member and a second metal member stacked on top of each other; the first metal member has at least one first base portion, and at least one first portion is disposed on the first base portion Fixing holes, and at least two first extending plates are arranged at intervals on one side of the first base portion, and the second metal member has at least one second base portion superposed on the first base portion, The second base portion is provided with at least one second fixing hole aligned with the first fixing hole, and at the second base portion side, at least two second extension plates are arranged at intervals, and the second extension plate is lower than The second base portion, each of the second extension plates is arranged at a staggered interval from each of the first extension plates, and each of the second extension plates is located at the same height as the first extension plate; On the first base side, a plurality of the first terminals are respectively arranged in columns on the same side of each of the first extension plates, and the first terminals located in the same column are connected to the same first An extension plate, the first terminal spans over the second extension plate, and provides more The second terminal has the same specifications as the first terminal, and the plurality of second terminals are respectively arranged on one side of the second base portion, and the plurality of second terminals are respectively formed on the same side of each of the second extension plates. The column arrangement, the second terminal located in the same column is just connected to the same second extension plate, and the second terminal is above the first extension plate. The terminal strip of claim 1, wherein the first metal member has two opposite first base portions, and the first first extending plate is disposed between two first base portions. The second metal member has two opposite base portions, the second extension plate is disposed between the two second base portions, and the second base portion is respectively opposite to the second base portion A base is placed one on top of the other. The terminal strip according to claim 1, wherein a first gap is formed between the two first extension plates, and the first gap is wider than each of the second extension plates. The second terminal connected thereto is horizontally wide in a direction in which the plurality of second extension plates are arranged. The terminal strip of claim 1, wherein a second gap is formed between the two second extension plates, the second gap being wider than each of the first extension plates and the connected portion thereof. The first terminal is horizontally wide along a direction in which the plurality of second extension plates are arranged. The terminal strip of claim 3, wherein each of the first terminals has an upwardly extending first contact arm disposed on the first terminal of the first extension plate Forming a third gap between the first contact arms to communicate with the first gap, the third gap being wider than each of the second extension plates and the second terminal to which the second extension is connected The extension plate is arranged horizontally wide. The terminal material board of claim 1, wherein a receiving plate is disposed under the terminal material plate, and a surface of the mounting plate is provided with a mounting area, wherein a plurality of contacts are arranged in the mounting area. The first terminal of the second extension plate is respectively in contact with the two adjacent contact pads of the two adjacent rows, and the second terminal of the second extension plate is disposed. The terminals are respectively in contact with the two adjacent contact pads of the two adjacent rows. The terminal strip of claim 6, wherein the carrier is mounted with at least one positioning post at an edge of the mounting area, and the first fixing hole and the second fixing hole are nested in the same Positioning column. A terminal assembly method includes: providing at least one carrier plate, wherein a surface of the carrier plate is provided with a mounting area, wherein a plurality of contact pads are arranged at intervals; and a batching step is performed to provide a terminal material plate, which is configured The terminal material plate has a first metal member and a second metal member stacked on top of each other; Providing the first metal member above the mounting area, having at least one first base, and at least one first fixing hole on the first base, and on a side of the first base Between the two first extension plates, at least two first extension plates are formed, and a first gap is formed between the first extension plates, and the first gap is horizontally spaced apart from the second phase in a plurality of the first extension plates. In the second row of the contact pads, a plurality of first terminals are arranged on one side of the first base, and a plurality of the first terminals are respectively arranged in a row on the same side of each of the first extension plates, and are located at the same The first terminals of the column are connected to the same first extension plate, and the first terminals arranged on the two first extension plates are respectively in contact with the two adjacent contact pads of the two adjacent rows; Providing the second metal member above the first metal member, the second metal member having at least one second base stacked on the first base, and at least the second base a second fixing hole, and the second fixing hole is aligned with the a fixing hole, and at least two second extending plates are arranged on the side of the second base, and the second extending plate is lower than the second base, and the second extending plate is formed between a second gap, the second gap being wider than each of the first extension plates and the first terminal to which the first extension plate is connected is horizontally wide in a direction of a plurality of the second extension plates, and the second gap a horizontal spacing along a plurality of the second extending plates is greater than a spacing of the contact pads in any two adjacent rows; and a plurality of second terminals are provided in the same size as the first terminals, and the plurality of the second terminals are Arranging on the side of the second base portion, a plurality of the second terminals are respectively arranged in columns on the same side of each of the second extension plates, and the second terminals located in the same column are connected to the same a second extension plate, each of the second extension plates and the second terminal to which the second extension plate is connected is horizontally wider than the first gap along a direction in which the plurality of second extension plates are arranged; When the two bases are stacked on the first base, one of the A first plate extending into the gap, the The second extension plate is at the same height as the first extension plate, and the second terminal portion spans over the first extension plate, the first terminal portion also spans above the second extension plate, and The second terminals disposed on the second extension plate are respectively in contact with the contact pads of the two adjacent rows; the welding step is performed on the carrier and the terminal material plate, so that the majority The first terminal and the plurality of the second terminals are respectively soldered and fixed to each of the contact pads; the terminal material plate performs a stripping step, so that each of the first terminals is separated from each of the first extension plates, and Each of the second terminals is separated from each of the second extension plates. The terminal assembly method of claim 8, wherein each of the first terminals has an upwardly extending first contact arm disposed on the first terminal of the first extension plate Forming a third gap between the first contact arms to communicate with the first gap, the third gap being wider than each of the second extension plates and the second terminal to which the second extension is connected The extension plate is arranged horizontally wide. The terminal assembly method of claim 9, wherein the carrier plate is mounted with at least one positioning post at an edge of the mounting area, and in the batching step, controlling the first base to make the first fixing Inserting the hole into the positioning post from top to bottom, each of the first terminals contacting each of the contact pads, and then controlling the second base to drive one of the second extension plates and the second thereof The terminal enters the first gap from the top to the bottom through the third gap while the second fixing hole is nested in the positioning post, and each of the second terminals is in contact with each of the contact pads. The terminal assembly method of claim 10, wherein each of the second extension plates and the second terminal to which the second extension plate is connected is moved through the third gap after a path inclined with respect to the carrier plate. And entering the first gap through the third gap along a path perpendicular to the carrier. The terminal assembly method of claim 8, wherein the first metal member has two opposite first base portions, and the first extension plate is disposed between two first base portions. The second metal member has two opposite base portions, and the second extension plate is disposed between the two second base portions. In the compounding step, the second base portions are respectively associated with The first bases are stacked one on top of the other. The terminal assembly method of claim 8, wherein the terminal strip is subjected to a stripping step, each of the first terminal and each of the second terminals and each of the first extension plates and each After the second extension plate is separated, the first base portion and the second base portion are simultaneously operated, and each of the first extension plates and each of the second extension plates are removed from the column direction. The terminal assembly method of claim 8, wherein the first metal member and the second metal member are stacked on top of each other, and the first base portion and the second base portion are simultaneously operated and held The position between the second fixing hole and the first fixing hole is constant, and the first metal piece and the second metal piece are mounted in the mounting area of the carrier.