TW490896B - Methods for reducing profile variation in photoresist trimming - Google Patents

Abstract

A card edge type electrical connector including dual-beam ground contacts each having splayed pre-loaded tips and a realignment twist enabling a plurality of such contacts to be gang inserted into the insulator housing of the connector. To adjust the pitch of the pre-loaded tips, a predetermined twist is added to the bottom of the contacts during the stamping operation which re-aligns the tips with the correct contact receiving apertures. The re-alignment twist disappears once the contact(s) are fully seated in the insulator housing, thus allowing the pre-loaded tips to reach their ultimate position within the insulator housing relative other adjacent contacts.

Description

490 ^ 〇A7 -------- B7 V. Description of the invention (1) [Background of the invention] The present invention relates to the art of electrical connector connection, and it relates to the card edge electrical connection system for circuit boards in more detail. . More specifically, the invention relates to a double-beam ground terminal having an alignment twisted portion for joint insertion into a card edge electrical insulation housing. · ', Connected to it: The combination of the known electrical connectors enters the receiving portion of the insulating material through a very tight press, and the secondary mold, -and :: supports the aforementioned terminals and maintains their positioning at :: cheng: : Connection element: To-pair separated parallel rails, or by row * 2: Connected to the position as described in the assembly. The aforementioned conventional technology uses = each: the terminal to the receiving section of the terminal to go to Γ34. The problem is that the terminal is inserted into the row by the carrier bar and held in the column. = To the receiving section, the receiving section can insert the aforementioned terminal. Keeping the positioning at w1, the popular form of electrical connectors is widely used in the electronics industry, = :, card H system. —Receiving of the card connector—㈣Circuit — There are mating end edges and a plurality of terminal pads adjacent to the aforementioned end edges. This type: The edge connector typically has an elongated insulating housing defining a sheet: == 述 ;;: The mating end edge of the circuit board. A plurality of terminals are configured =: two in two: a description of the mating end of the printed circuit board, the circuit board. The board on which the aforementioned connector is mounted is commonly referred to as the motherboard. Dan 4 daughter board, please read the back 5 I items first, then fill out this page f order the standard of the Ministry of Economic Affairs, male workers' consumer cooperatives printed purple

^ 0896 A7 B7 Printed by the Ministry of Economic Affairs * Standards Bureau—Industrial and Consumer Cooperative Cooperatives and Inventions (The card edge connector with the characteristics described above has many problems. The reason is that the core is to increase the high-density electrical This type of connection terminal system is installed in a housing, which is prefabricated with an insulating material, such as plastic J or the like. The foregoing terminals have not only become more miniaturized, but also the number or The density becomes more and more, therefore, the possibility of a terminal = short circuit is significantly increased. To solve the potential problem of a short circuit, a separate sleeve can be designed in the housing to separate the aforementioned terminals so that the terminals can be electrically isolated from each other. This technique is very difficult and costly, due to the miniaturization of the terminals and the number.-A more feasible solution is to make or form the terminals into a special shape to avoid short circuits with other terminals. This technology One example is to pre-load or bend the tips of some terminals, and 避 avoid other terminals without pre-load in the insulation case. 〃 However, even the terminals The tip is preloaded to avoid short circuit from the bracket of the aforementioned combination. When a typical card edge connection uses a sheet or material on a general carrier strip to form a plurality of terminals, so that these terminals can be simultaneously inserted into the insulation The shell towel 'due to the correct pitch and air gap of the insulating shell slot or cavity, as described above, the preloading technique tends to compensate or displace the terminals, so the end is inserted in combination with the pellet As a result, the tips of the terminals are typically inserted one after the other into the insulating housing. Therefore, it is desired to provide an electrical terminal that can be manufactured from the amount of sheet material carried on it and that has a preload. The tip can still be inserted into the insulation case. \ [Abstract] The present invention can meet the above-mentioned needs. By providing a double-beam ground terminal with an aligned twisted portion, a plurality of terminals on a general carrier strip can be used. Peng] towel_home. ((Please read the precautions on the back before filling this page)

490896 A7 B7 The Ministry of Economic Affairs finalized the award of the Bureau of Work and Consumer Cooperatives. V. Description of the invention (3 to the insulated housing of the card edge electrical connector. In order to adjust the pitch of the preload tip, the A predetermined twisted portion is added at the bottom, so that the twisted α 卩 can be aligned with the precise terminal 揍 receiving hole. This aligned twisted portion shows that the terminal can be completely located in the insulating housing. [Simplified description of the figure] The characteristics are believed to be new and obvious, and the scope of the attached patent application also shows its value. The purpose of the present invention and its benefits can be fully understood by referring to the following detailed description and the combination of the drawings. The model is numbered to correspond to the components in the figure, where: Figure 1 is a top M diagram of a representative card material gas connection, the card edge connector is combined with the electrical terminals of the present invention, and the display-the printed circuit board is inserted into the foregoing Connector 3 series; Figure 3 shows another top perspective view of the air connector without the aforementioned printed circuit board. Figure 3 is a bottom perspective view of the electrical connector shown in Figure 3 and Figure 4. Series 4 is the electrical connector shown in Figure 1. The top plan view of the connector. Figure five series-the front plan view of the electrical connector shown. ® six series of the bottom plan view of the electrical connector. Figure seven series-the top of the insulated housing of the electrical connector shown A perspective view. Figure 8 is a top plan view of the insulating case shown in Figure 7. Figure 9 is a bottom plan view of the insulating case shown in Figure 7 *. Figure 2 is a perspective view of the extension of a double-beam electrical terminal with a coefficient of t. The terminals are still connected to the body strips and strips. Figure = System—The vertical ends of the double beam electrical terminals are tilted outwards for the purpose of pre-loading. Ding Zhizi ... Page Ding 4 (Please read the back of V® (Notes to fill in this purchase)

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A7 Duplicated printing of work and consumer cooperation of the Central Bureau of Standards of the Ministry of Economic Affairs

The jujube paper scale is suitable for ffl Chinese National Standard (rNS) A4 specification (h0x 297 mm). The book is printed by the Central Standards Bureau of the Ministry of Standards and Printing Co., Ltd. A7 '~ ---------- B7 _ V. Description of the invention (5) ~ '一 --- ~-= Receive the mating end edge 13 of the printed circuit board 14. A plurality of terminals 22 (there are two sides of the m-slot 12 below are arranged, and the contact cymbals i6a and _ are provided on both sides of the printed circuit board η and adjacent to the mating end edge 13 with a coupling. As shown in the figure, the contact cymbals 16a and the survey system are two rows, where the row of contact cymbals i6b is closer to the mating end edge 13 than the row of contact pads w. The row of each contact cymbal he and b is parallel to the mating end edge 丨 3. A polarity Bipolar shoulders ... are formed on one end of the insulation case; the printed circuit board W is mated with the corresponding polar notches set at the end edge 13, the insertion of i8b and isc, ensuring that the board enters the slot of the connector vertically in the normal direction 12. In a variety of applications, card edge connectors, such as connectors, are installed on the first printed circuit board (not shown). The printed circuit board W is commonly referred to as a daughter board, and is used for connector installation. The second printed circuit board is commonly referred to as the motherboard. The connector 10 is of this type and includes three board locks i and 丄% for insertion into the mounting holes of the motherboard. A plurality of positioners A predetermined distance protrudes downward from the plate mounting surface 11a of the insulating case U, When mounted on the mother board, a gap can be separated from the mother board. As mentioned above, the connector 10 is usually housed with a plurality of terminals M that are functionally positioned in the insulating housing u along each side of the slot 12 In this way, the contact pads 16a and 16b on both sides of the daughter board I4 can be operatively engaged. All the terminals 22 include the tails 4 23 protruding downward from the plate mounting surface ua by a predetermined distance for drinking the mother board. As shown in Figures 3, 6 and 21, the plurality of terminals 22 preferably include the first series of simple cantilever signal terminals M and the second series of double beam ground terminals 26. The signal terminals 24 are card edge connections. The traditional type of the device can also include the first and first predetermined shapes as shown in Figures 24a and 24b. The paper size depends on the size of the paper, _ 财 Γ ^ Τ ^ Γ ^ Γχ_297 public fantasy (please read the precautions on the back first) (Fill in this page)

A7

Please refer to FIG. 10, a plurality of double-beam ground terminals are punched, shaped, and positioned by sheet material, forming a long double-beam electrical L, 2 7 connected by a m-pass and a tip carrier strip 28. Tail portion 23, one end is attached to the tail portion 23; sub-shaped; ^ terminal% The mouth ferrule portion 29 is separated from each other and is opposite to the tip 2: 9 and ^ 31a & 31b # have been formed and positioned, but; The 4-terminal strip 28 can also be connected to 鸲 31a or 31b. In general, the water body strip 28 must be removed from the terminal 26 when the insulation case is inserted. Once the terminal is inserted into the hole end load u, the domain body strip 27 must be removed from the terminal ㈣. Insulating housing, referring to Fig. 10 to Fig. 14, the ferrule portion 29 of the aforementioned terminal 26U includes the shank portion 2 and it has a longitudinal axis as shown in Fig. 14A-A, which is substantially perpendicular to the plane of the main carrier 27. The ferrule portion 29 further includes two opposite portions 2 卯 and .3 both protruding downward from the bottom 29a and gathered toward each other. The opposite portions 仏 and 仏: do not connect the tips 31a and 31b. A further improvement is shown in Fig. 13. The contact tips ja, 3lb are slightly inclined outward, so that the tip is pre-loaded before being inserted into the insulating case 11, which helps prevent the other end from standing in the insulating case. ^ Short-circuit caused by printing by the Consumers' Cooperative in the China Standards Bureau of the Ministry of Economic Affairs. Therefore, the angle of inclination Θ between the lost ends is determined by the design of the proximity of the terminal receiving sleeve or hole in the insulating housing ^ and the proximity of the tip 3u & 3ib in the insulating housing U to the lid terminal 24. The purpose is the same as / known from the general card edge connector technology. Meanwhile, as shown in Fig. 11 and Fig. 26, the angle of the alignment twisted portion is not included. Figures 7 to 9 and Figures 17 and 19 show the insulated casing u. The insulating case 11 has two rows of terminal tip positioning holes 32 extending through the board receiving surface 11b. The paper size is appropriate / type 1¾ Instant: wealth (rNS) eight / specification ⑺ G X 297 mm) 5. Description of the invention (Α7 Β7 Printed by Hegong Consumer Cooperative, Central Standards Bureau of the Ministry of Economic Affairs ^. It is used to receive the tips of the terminals 24 and 26 once positioned in the insulating case 11. The column of Ke Shu extends parallel to the longitudinal axis of the insulating case u and is located in the card slot The opposite side of 12. Each row contains staggered arrangements and different shapes of the first tip positioning holes 32a and the first cavity end positioning holes. Similarly, the insulating housing η has two rows that extend through the terminals of the board mounting surface 11a to receive The hole 33 is used to receive the tip of the ground terminal 2e when it is loaded on the insulating silent limb 11. The two aforementioned rows also extend parallel to the wires of the insulating housing U, and the aforementioned hole 33 is formed in the center by the board mounting surface. The partition 34 is separated or separated. Referring to FIG. 17 and FIG. 19, the tips 31a and two lbs of a plurality of double-beam ground terminals are loaded into the insulating housing u through the hole 33. FIG. The terminal 26 is partially arranged in the insulating case u, and FIG. 10 Then the display shows that the number 26 is completely positioned. In order to make the tips 3U and 31b align with the holes 33, the bottom 29b of the pair is formed with an alignment twist portion α during stamping or manufacturing operations, as shown in Figure 10. As shown in Fig. 5 and Fig. 16, the aforementioned aligned twisted portions "approximately formed on the longitudinal axis A-A of the bottom 29a and are two oppositely-oriented twisted portions" Work and "2 are effective totals. The effective angle of the aforementioned twisted portions is suitable Lead the tip 仏 and = ib into the plane of the main carrier strip 27, as shown in Figure 15, so that the tip = can be inserted into the correct hole 33. Of course, the aforementioned hole 33 is connected by & Sub-pattern ^. The preferred ground terminal pattern of the present invention is shown in the figure, and the best one is shown in Figure 17. Before inserting into the insulating housing U, suppose the terminal 26 does not have If you align the twisted part α, the terminal will be correctly inserted into the disk, or the terminals must be inserted one by one and cannot be integrated. The aforementioned alignment is twisted. Display—The terminal is completely positioned so that the bottom f9a is flat. Engage the center bulkhead 34, the bottom will be straightened without distortion P Allowing the tip 31a & 31b is moved to its negative pre-position |; ---- (Please read the Notes on the back to fill out this page) book «- - - 1I-- I -..

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Claims (1)

490896 A8 B8 CB D8 6. Scope of Patent Application (Private Order) R-t 2002 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1. A double-beam electrical ground terminal, including: a U-shaped ferrule section including a bottom and first and second diameters The opposite gathering portion protrudes downward from the aforementioned bottom, one tail portion is connected to the aforementioned bottom portion, and the corresponding split ends of the first and second brothers are respectively connected to the aforementioned first and second gathering portions; the aforementioned U-shaped ferrule portion and the tail portion It is substantially in the same plane; the first and second tip portions are slanted outwardly from the plane of the ferrule portion and the tail portion, and are at an angle suitable for preload, and its improved features include: twisting the aforementioned terminal The bottom end 'in the opposite direction along the longitudinal vehicle is therefore suitable to lead the aforementioned first and second tip portions substantially back into alignment with the aforementioned u-shaped ferrule portion and the plane of the tail portion. 2. The terminal as described in the application item is formed into an elongated carrier strip with other terminals for integral integration into the insulating housing of the electrical connector. 3. · A double beam terminal with a U-shaped structure, including a bottom (29a) and a pair of arms (29b, 29c) extending from the bottom in a clustering manner. When loaded into a connector for use, the terminal tip The sections (31a, 31b) extend from the individual arm sections (29b, 29c) and open obliquely outward, so that the terminal tips are not the same _ plane. The two bottoms are formed with pre-formed twisted sections, so the tip sections are inserted in the terminals. The front of the connector is the same plane. This configuration allows the position of the terminal in the connector to act on the aforementioned twisted portion on the opposite side of the terminal to move the tip portion to no longer align. 4. If applying for a special tank The terminals mentioned in the above item are formed with additional items (please read the precautions on the back before filling this page) ------- Order ------- · End- 1 490896 A8 B8 C8 D8 Steps for applying for a patent, such that the aforementioned bottom portion includes the twisted portion to align the tip portion, insert the aligned tip portion into the aforementioned connector, and a device that couples the terminal to the aforementioned connector to resist the twisted portion The moving tip is no longer aligned. 8. The method as described in the application, wherein the terminal system is formed with a carrier strip with other terminals for integrally inserting into the insulating housing of the electrical connector. 9. The method according to item 7 of the scope of patent application, wherein the aforementioned plurality of terminals are inserted into the aforementioned connector as a whole. 10. The method according to item 8 of the scope of the patent application, wherein the plurality of terminals are inserted into the connector in an integrated manner. (Please read the precautions on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs J: \ ching \ b08123.doc This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)