CN102623357A - Manufacture method of triode lead frame - Google Patents
Manufacture method of triode lead frame Download PDFInfo
- Publication number
- CN102623357A CN102623357A CN2012100875894A CN201210087589A CN102623357A CN 102623357 A CN102623357 A CN 102623357A CN 2012100875894 A CN2012100875894 A CN 2012100875894A CN 201210087589 A CN201210087589 A CN 201210087589A CN 102623357 A CN102623357 A CN 102623357A
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- lead frame
- unit
- triode
- row
- intersecting
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Abstract
The invention provides a manufacture method of a triode lead frame, which comprises the following operation steps that a plurality of lead frame columns (7) in transversely mutual connection are stamped from the same workpiece, the lead frame columns (7) comprise a plurality of longitudinally arranged intersecting units (9), each intersecting unit (9) is composed of two opposite lead frame units which are arranged in intersecting mode at the positions of outer tube feet (6), and the intersecting units (9) are connected through tube foot connecting ribs (5). The head areas of the lead frame units are plated; and a plurality of separated matrix type lead frame sheets (11) are obtained by cutting along reinforcing ribs (8). The manufacture method of the triode lead frame enables the utilization rate of the workpiece to be high, production efficiency is high, and production cost is low.
Description
Technical field
The present invention relates to the leadframe technologies field, be specifically related to a kind of manufacturing approach of lead frame of triode.
Background technology
The manufacturing approach of prior art lead frame of triode is divided into two kinds, and a kind of is to make through etching, and a kind of is to make through punching press.Compare with lithographic method, the method for making lead frame of triode through punching press has the ability of High-speed machining.But prior art is made the manufacturing approach of lead frame of triode such as TO-92 (industry universal models) lead frame through punching press; Be at first to stamp out single tape coiling of lead frame from workpiece; Through electroplating work procedure the head zone of single tape coiling of lead frame is electroplated again, get into separation circuit then, separate into single lead frame piece to tape coiling of lead frame; Wherein, each lead frame piece comprises the lead frame unit of a plurality of cephalocaudal directions unanimities, parallel arranged.Because the tape coiling of lead frame that this method stamps out is single, so its production efficiency is lower, each operation manpower and material resources consuming cost are high.
Application number is the manufacturing approach that 200710067640.4 Chinese invention patent " manufacturing approach of lead frame of triode " discloses a kind of lead frame of triode; This method adopts carries out punching press simultaneously to four row lead frame frame winding; The winding of every row lead frame frame comprises the lead frame unit of a plurality of cephalocaudal directions unanimities, parallel arranged; Then four row lead frame frame winding are electroplated simultaneously, separate, this makes the production efficiency of per pass operation all greatly improve.This method had improved production efficiency greatly at that time, had reduced production costs such as human and material resources.But; Along with making rapid progress of The development in society and economy and science and technology; In the view of at present, still there are some defectives in the manufacturing approach of this lead frame of triode: the consistent arrangement of lead frame unit head and the tail that (1) stamps out with this method, and this makes the lead frame limited amount that the unit are workpiece stamps out; The utilance of workpiece is not high, thereby production cost of products is improved relatively; (2) just punching press and plating are carried out in four row lead frame frame winding, so its production efficiency is still on the low side relatively.
Summary of the invention
Technical problem to be solved by this invention provides a kind of manufacturing approach of lead frame of triode; This method makes that the utilance of workpiece lead frame quantity high, that the unit are workpiece stamps out is many, and production efficiency raising, the production cost of producing lead frame through this method reduce.
The technical scheme that the present invention adopted is:
A kind of manufacturing approach of lead frame of triode comprises following operating procedure:
(1) stamps out laterally interconnective a plurality of lead frame row from same workpiece; Said lead frame row are connected with sideband through reinforcement each other; Said lead frame row comprise the cross unit of a plurality of vertical arrangements; Said cross unit by two reverse, form in the lead frame unit of external pin position cross arrangement, connect muscle through pin between the said cross unit and connect;
(2) head zone of said lead frame unit is electroplated;
(3) cut along reinforcement, obtain a plurality of matrix frame sheets that separate, each matrix frame sheet comprises 5～15 lead frame row.
Compared with prior art; The present invention has following remarkable advantage and beneficial effect: a unit is formed in per two of lead frame of triode unit through the present invention stamps out; Cephalocaudal direction is opposite each other in these two lead frame unit; External pin cross arrangement then; Compare with the method that stamps out the consistent lead frame unit of arranging of cephalocaudal direction in the prior art, the manufacturing approach of this lead frame of triode has greatly improved the utilance of workpiece, and the lead frame quantity that the unit are workpiece is stamped out is more a lot of than howing in the prior art.In addition, see from production efficiency that the lead frame unit carries out punching press, electroplates simultaneously the present invention's employing simultaneously more to arranging longitudinally, this greatly improves production efficiency, has also practiced thrift the production energy simultaneously; See that from production cost the raising of workpiece utilance makes the lead frame unit of making equal number need workpiece still less, the raising of punching press and electroplating work procedure efficient has reduced human cost and supplies consumption cost; From client's use angle, the matrix frame sheet of manufacturing of the present invention also makes client's service efficiency improve.
Description of drawings
Shown in Figure 1 is the structural representation of single TO-92 lead frame unit in the embodiment of the invention;
Shown in Figure 2 is the structural representation of the cross unit of two TO-92 lead frame unit compositions in the embodiment of the invention;
The structural representation of the matrix frame sheet that the embodiment of the invention that shown in Figure 3 is stamps out;
Shown in Figure 4 is the structure for amplifying sketch map of A part among Fig. 3.
Wherein: 1, Ji Dao; 2, left little solder joint; 3, right little solder joint; 4, internal pin; 5, pin connects muscle; 6, outer foot tube; 7, lead frame row; 8, reinforcement; 9, cross unit; 10, sideband; 11, matrix frame sheet.
Embodiment
Below in conjunction with embodiment the present invention is made further specific descriptions, but be not limited to this.
It is that the lead frame unit of TO-92 describes that present embodiment is selected model for use.TO-92 lead frame unit comprises that basic island 1, left little solder joint 2, right little solder joint 3, internal pin 4, pin connect muscle 5, outer foot tube 6; Head zone is made up of basic island 1, left little solder joint 2, right little solder joint 3; Be that basic island 1, left little solder joint 2, right little solder joint 3 positions are the plating area, as shown in Figure 1.
The manufacturing approach of lead frame of triode of the present invention is drawn together following operating procedure:
(1) stamps out laterally interconnective a plurality of lead frame row 7 from same workpiece; Said lead frame row 7 are connected with sideband 10 through reinforcement 8 each other; Said lead frame row 7 comprise ten cross units of vertically arranging 9; Said cross unit 9 by two reverse, form (as shown in Figure 2) in the lead frame unit of external pin 6 position cross arrangements, connect muscle 5 through pin between the said cross unit 9 and connect;
(2) head zone of said TO-92 lead frame unit is electroplated;
(3) cut along reinforcement 8, obtain a plurality of matrix frame sheets 11 that separate, each matrix frame sheet 11 comprises eight lead frame row 7.
In this manufacture process, these ten cross units 9 of vertically arranging can carry out punching press simultaneously, electroplate simultaneously, and this manufacturing approach efficient than punching press simultaneously of four row lead frame framves in the prior art and plating will improve a lot.
The above embodiment of the present invention is can not be used to limit the present invention to explanation of the present invention, and implication suitable with claims of the present invention and any change in the scope all should be thought to be included in the scope of claims.
Claims (1)
1. the manufacturing approach of a lead frame of triode is characterized in that comprising following operating procedure:
(1) stamps out laterally interconnective a plurality of lead frame row (7) from same workpiece; Said lead frame row (7) are connected with sideband (10) through reinforcement (8) each other; Said lead frame row (7) comprise the cross unit (9) of a plurality of vertical arrangements; Said cross unit (9) by two reverse, form in the lead frame unit of external pin (6) position cross arrangement, connect muscle (5) through pin between the said cross unit (9) and connect;
(2) head zone of said lead frame unit is electroplated;
(3) cut along reinforcement (8), obtain a plurality of matrix frame sheets (11) that separate, each matrix frame sheet (11) comprises 5～15 lead frame row (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100875894A CN102623357A (en) | 2012-03-29 | 2012-03-29 | Manufacture method of triode lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100875894A CN102623357A (en) | 2012-03-29 | 2012-03-29 | Manufacture method of triode lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102623357A true CN102623357A (en) | 2012-08-01 |
Family
ID=46563195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100875894A Pending CN102623357A (en) | 2012-03-29 | 2012-03-29 | Manufacture method of triode lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102623357A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5321305A (en) * | 1992-04-17 | 1994-06-14 | Rohm Co., Ltd. | LED manufacturing frame and method of using the same for manufacturing LEDs |
| CN101030542A (en) * | 2007-03-21 | 2007-09-05 | 宁波康强电子股份有限公司 | Production of triode lead wire frame |
| CN202120899U (en) * | 2011-08-12 | 2012-01-18 | 宁波华龙电子股份有限公司 | Triode lead frame plate of staggered arrangement |
-
2012
- 2012-03-29 CN CN2012100875894A patent/CN102623357A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5321305A (en) * | 1992-04-17 | 1994-06-14 | Rohm Co., Ltd. | LED manufacturing frame and method of using the same for manufacturing LEDs |
| CN101030542A (en) * | 2007-03-21 | 2007-09-05 | 宁波康强电子股份有限公司 | Production of triode lead wire frame |
| CN202120899U (en) * | 2011-08-12 | 2012-01-18 | 宁波华龙电子股份有限公司 | Triode lead frame plate of staggered arrangement |
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Application publication date: 20120801 |