CN101294694A - Power type LED lead frame piece and process technique thereof - Google Patents
Power type LED lead frame piece and process technique thereof Download PDFInfo
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- CN101294694A CN101294694A CNA2008100162072A CN200810016207A CN101294694A CN 101294694 A CN101294694 A CN 101294694A CN A2008100162072 A CNA2008100162072 A CN A2008100162072A CN 200810016207 A CN200810016207 A CN 200810016207A CN 101294694 A CN101294694 A CN 101294694A
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- lead frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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Abstract
The invention discloses a power type LED lead frame sheet and belongs to the middle piece in the LED lead frame processing technique. The invention further relates to the processing technology of the power type LED lead frame sheet. The power type LED lead frame sheet includes a lead frame, a frame and a bracing member, wherein a fabrication hole is formed on the frame corresponding to the lead frame longitudinal midline, a fabrication nick is disposed on the outer side thereof, a transverse bracing member is arranged between the bracing member and a pin of the lead frame, the step pitch ranges from 9.5mm to 9.6mm, the width of the bracing member ranges from 1.45mm to 1.55mm, the bracing member is arranged between the frame and the transverse bracing member on the corresponding side, and the length of the transverse bracing member ranges from 1.05mm to 1.30mm. The invention provides the power type LED lead frame sheet with less structural waste, low energy consumption in processing and high production efficiency.
Description
(1) technical field
The present invention relates to a kind of power type LED lead frame piece, belong to LED lead frame processing technology middleware, the invention still further relates to the processing technology of this power type LED lead frame piece.
(2) background technology
Outstanding advantages such as that the LED luminous product has is energy-conservation, emission response time is short, the life-span is long, volume is little.The LED illumination has very bright distant view and wide applications, has been widely used in automotive lighting, guidance lighting and the decorative lighting at present.Power type LED lead frame is the supporting part of high-grade LED, and the international market demand amount increases day by day.Manufacture method for gadget lead frames such as LED mainly contains two kinds, and one is for to make lead frame by etching, and another kind then is to make lead frame by punching press.For the latter, fast because it, has process velocity directly by cold stamping shaped, the characteristics that structural strength is high.Generally be to adopt coiled strip, make lead frame piece, divide again to cut into single lead frame through continuous punching press.
Present power type LED lead frame both domestic and external mainly contains Pirnaha Piranha type and SnapLED type, with reference to Figure of description 1 and 3, and 0.5 inch of all adopting international standards of its product step pitch, just 12.7mm.Step pitch refers to two lead frame axis spacings on the lead frame piece, and this mainly is to consider continuous punching press and set standard step pitch is beneficial to continuous stamping.Because the pin of lead frame is narrower, strength and stiffness are not high, so frame 7 will be set on the lead frame chip architecture as connector between the lead frame of support of lead frame pin and continuous stamping, and be provided with fabrication hole 1 corresponding to each lead frame on the frame, its outside divides tangent line to be provided with technology breach 2 corresponding to two lead frames, corresponding to this technology breach company's of being provided with muscle 3 then, above-mentioned lead frame pin then is connected to this and connects on the muscle 3 by the narrower horizontal muscle 5 that connects between frame.Muscle 3 and horizontal muscle 5 also all are in order to guarantee the rigidity of lead frame piece in the stamping-out process, to prevent that the lead frame distortion is excessive, especially will controlling its horizontal bending.
Yet, because 0.5 inch general step pitch of west is all adopted in the design of Pirnaha Piranha type and SnapLED type power-type lead frame piece, single with regard to Pirnaha Piranha type, the consideration that is used for from frame, its step pitch is excessive, also just cause structural waste material too much, wasted a large amount of copper materials.Because step pitch is bigger, its rigidity also just can't guarantee, be the rigidity requirement of 2mm with lead frame in the assurance process so connect muscle 3 width, but muscle also can become waste material after lead frame is cut, if it is too wide that this part is provided with, the inevitable total amount that also can increase structural waste material; Be the balance machining stress simultaneously, be provided with square opening 4 corresponding to horizontal 5 parts of muscle that connect at company's muscle.Simultaneously because blanking pressure P=kLt τ
0, wherein L represents the stamping-out length of blanking part, refers to implement the peripheral length of stamping-out, blanking pressure is directly proportional with stamping-out length as can be seen from the above equation.In sum, so because step pitch is bigger, and then the L value is bigger, the existence of square opening has increased the L value again, thereby causes blanking pressure bigger, then needs to consume more energy, and has also increased the Mould design difficulty.At present the structure of power type LED lead frame piece and reduce product material consumption now improves stock utilization, and energy-saving and cost-reducing main flow disagrees, and owing to because step pitch is bigger, will inevitably cause man-hour long, has reduced production efficiency relatively.
(3) summary of the invention
The present invention is many in order to overcome the structural waste material of present power type LED lead frame piece, and the power consumption of polymer processing height, and the defective that productivity ratio is low provides a kind of structural waste material few, and power consumption of polymer processing is low, the power type LED lead frame piece that production efficiency is high.
The present invention is by the following technical solutions:
Power type LED lead frame piece of the present invention, comprise lead frame, frame and connect muscle, wherein be provided with fabrication hole corresponding to the vertical center line of lead frame on the frame, and its arranged outside has the technology breach, connect and be provided with the horizontal muscle that connects between muscle and lead frame pin, its step pitch is 9.5mm～9.6mm, and described even muscle width is 1.45mm～1.55mm, and it is between described frame and described horizontal the company between the muscle of respective side; Horizontal even muscle length is 1.05mm～1.30mm.
Above-mentioned power type LED lead frame piece, one of described frame are gone up corresponding to the described muscle that connects and are provided with the auxiliary process hole.Described technology breach is arranged on the perpendicular bisector that connects center line between described fabrication hole and described auxiliary process hole.
Above-mentioned LED lead frame piece mainly is the improvement at Pirnaha Piranha type lead frame piece, the present invention has also done following improvement at SnapLED type lead frame piece, its step pitch is 9.5mm～9.6mm, described company muscle width between described frame and horizontal company muscle is 0.95mm～1.05mm, and its partial width between described two horizontal company muscle is 0.48mm～0.5mm; Horizontal even muscle length is 1.23mm～1.33mm.
The step pitch that its improvements of power type LED lead frame piece of the present invention are mainly reflected in original Pirnaha Piranha type and two kinds of LED lead frame piece of SnapLED type is reduced to 9.5mm～9.6mm, because of its step pitch reduces, must make its structural rigidity improve, corresponding to this, consider of the strength and stiffness requirement of stamping-out process to lead frame piece, its muscle width also can reduce greatly, with respect to Pirnaha Piranha type, it connects the muscle width and is reduced to 1.45mm～1.55mm by original 2mm, then be reduced to 0.95mm～1.3mm with respect to the SnapLED type, reduce this structural waste material of muscle and also bring certain leeway, reduce the rigidity that step pitch then can improve lead frame piece simultaneously for reducing step pitch.Connect the setting of muscle this moment, because Pirnaha Piranha type blanking pressure that lead frame piece requires is little, it can save fully corresponding to the two horizontal parts that connect between the muscle, then can reduce its width greatly for the SnapLED type.According to the trial-production part, in length is on the copper material of 190mm, original lead frame piece can only be held 15 lead frames, lead frame piece of the present invention then can be held 20, corresponding every lead frame can be saved 25% copper material, significantly reduce structural waste material, improved utilization rate of raw materials.And the trial-production part does not have the cold working defective, and qualification rate and original lead frame piece do not have difference.Reduce because of step pitch simultaneously, blank operation has reduced useless stroke, has reduced energy consumption, has also improved production efficiency.And step pitch reduces also to have reduced stamping-out length, connect muscle simultaneously and do not had the two horizontal parts that connect between muscle with respect to Pirnaha Piranha type lead frame piece, stamping-out length is also corresponding to be reduced, though then do not reduce for the SnapLED type, but it has not had square opening, stamping-out length reduces here to obtain to embody, its total stamping-out length all reduces to some extent, its required blanking pressure is also all corresponding to be reduced, design according to mould, generally each stroke communications centre is determined four lead frames, be respectively 30.13 tons and 39.96 tons corresponding to Pirnaha Piranha type and SnapLED type blanking pressure, the present invention then is reduced to 27.73 tons and 34.49 tons respectively, and blanking pressure all reduces to some extent, has reduced energy consumption.Compare according to trial-production part and existing lead frame piece, with respect to Pirnaha Piranha type, lead frame piece of the present invention finally obtains every lead frame can fall cost control at existing product 83.5%, increase production capacity 33%, " three wastes " discharge capacity is 78% of original technology, and the SnapLED type is respectively 85%, 29% and 80%.
The present invention also provides a kind of processing technology of above-mentioned power type LED lead frame piece, and it mainly comprises following operation:
1) punching press: a. coiled material exhibition material; B. smoothing; C. stamping-out, it carries out stamping-out earlier and connects the muscle station, and stamping-out lead frame station will carry out check of head and the tail spare and process randomized test simultaneously again; D. rewinding;
2) electroplate: a. opens up material; B. electroplate, its process will be carried out check of head and the tail spare and process randomized test; C. rewinding;
3) cut off: this operation will be carried out procedure inspection, and workpiece is carried out randomized test or the check of head and the tail part,
It mainly comprises: a. opens up material, the b. smoothing, and c. cuts off, the d. rewinding;
4) sorted and packaged.
This technology elder generation stamping-out connects the muscle station, and stamping-out lead frame station again is beneficial to and guarantees on the basis of moulding that station does not thereafter influence the precision of shaping station.
(4) description of drawings
Fig. 1 is a Pirnaha Piranha type lead frame piece structural representation.
Fig. 2 is that the present invention is corresponding to Pirnaha Piranha type lead frame piece structural representation.
Fig. 3 is a SnapLED type lead frame piece structural representation.
Fig. 4 is that the present invention is corresponding to SnapLED type lead frame piece structural representation.
Fig. 5 is LED lead frame piece processing process figure of the present invention.
Among the figure: 1 fabrication hole, 2, the technology breach, 3, connect muscle, 4, square opening, 5, the horizontal muscle that connects, 6, lead frame, 7, frame, 8, the auxiliary process hole.
(5) specific embodiment
Embodiment 1:
With reference to Figure of description 2, power type LED lead frame piece of the present invention, comprise lead frame 6, frame 7 and connect muscle 3, wherein be provided with fabrication hole 1 corresponding to the vertical center line of lead frame on the frame, and its arranged outside has technology breach 2, connects to be provided with the horizontal muscle 5 that connects between muscle and lead frame pin, and its step pitch is 9.5mm, described even muscle 3 width are 1.45mm, and it is between described frame 7 and described horizontal the company between the muscle 5 of respective side; Horizontal even muscle length is 1.05mm.
For the processing orientation of convenient identification lead frame piece in the following process operation, one of described frame 7 is gone up corresponding to the described muscle 3 that connects and is provided with auxiliary process hole 8, can be according to this auxiliary process control identification processing orientation.
Because increase the auxiliary process hole, then for avoiding frame local strength and rigidity too small, described technology breach 2 is arranged on the perpendicular bisector that connects center line between described fabrication hole 1 and described auxiliary process hole, just allows the auxiliary process hole avoid the technology gap position.
Embodiment 2:
With reference to Figure of description 2, LED lead frame piece of the present invention, it is with respect to embodiment 1, and step pitch adopts 9.6mm, and the scheme of optimum of the present invention in fact is that step pitch adopts 9.525mm, step pitch can not be too little, if too little, then final every lead frame is cut very difficulty of Mould design, and the layout of muscle and horizontal muscle and design also can be difficult, can't guarantee on the intensity that rigidity is less important relatively here.If but step pitch is too big, then its structural waste material will inevitably increase to some extent, is unfavorable for saving energy and reduce the cost, and saves raw material.Corresponding to step pitch 9.6mm, it connects the muscle width and adopts 1.55mm, connects rigidity and requirement of strength, especially rigidity that the muscle width then will be considered lead frame piece, if the lead frame chip layout is bigger, for rational rigidity is arranged, connecting muscle then needs corresponding widening, and its horizontal muscle length also is like this, because lead frame pin distance is constant, if step pitch increases, horizontal muscle length also can increase, and this moment, horizontal even muscle length was 1.30mm.
Embodiment 3:
With reference to Figure of description 4, what this embodiment was primarily aimed at is SnapLED type lead frame piece, because of the structural strength of its lead frame own than higher, so connect the muscle setting corresponding to 1 and 2 wanting narrower in implementing, but be of the influence of balance additional stress, kept the two horizontal company's muscle parts that connect between the muscle lead frame.Its step pitch then with embodiment 1 and 2 just the same be 9.5mm～9.6mm, the described muscle 3 that connects is between described frame 6 with horizontally connect that width is 0.95mm～1.05mm between the muscle 5, and it horizontally connects that partial width is 0.48mm～0.5mm between the muscle 5 between described two; Horizontal even muscle length is 1.23mm～1.33mm, and the selection of its muscle length and width is also consistent with the foregoing description.
The present invention also provides a kind of processing technology of above-mentioned LED lead frame, and it comprises following operation:
1) punching press: a. coiled material exhibition material; B. smoothing; C. stamping-out, it carries out stamping-out earlier and connects the muscle station, and stamping-out lead frame station will carry out check of head and the tail spare and process randomized test simultaneously again; D. rewinding;
2) electroplate: a. opens up material; B. electroplate, its process will be carried out check of head and the tail spare and process randomized test; C. rewinding;
3) cut off: this operation will be carried out procedure inspection, and workpiece is carried out randomized test or the check of head and the tail part, and it mainly comprises: a. opens up material, the b. smoothing, and c. cuts off, the d. rewinding;
4) sorted and packaged.
Claims (5)
1. power type LED lead frame piece, comprise lead frame (6), frame (7) and connect muscle (3), wherein be provided with fabrication hole (1) corresponding to the vertical center line of lead frame on the frame, and its arranged outside has technology breach (2), connect and be provided with the horizontal muscle (5) that connects between muscle and lead frame pin, it is characterized in that: its step pitch is 9.5mmm～9.6mm, and described even muscle (3) width is 1.45mm～1.55mm, and it is between described frame (7) and described horizontal the company between the muscle (5) of respective side; Horizontal even muscle length is 1.05mm～1.30mm
2. power type LED lead frame piece according to claim 1 is characterized in that: one of described two frames (7) are gone up corresponding to the described muscle (3) that connects and are provided with auxiliary process hole (8).
3. power type LED lead frame piece according to claim 2 is characterized in that: described technology breach (2) is arranged on the perpendicular bisector that connects center line between described fabrication hole (1) and described auxiliary process hole (8).
4. power type LED lead frame piece, it is characterized in that: its step pitch is 9.5mm～9.6mm, described company's muscle (3) width between described frame (6) and horizontal company's muscle (5) is 0.95mm～1.05mm, and its partial width between described two horizontal company's muscle (5) is 0.48mm～0.5mm; Horizontal even muscle length is 1.23mm～1.33mm.
5. as claim 1 or 4 described power type LED lead frame piece processing technologys, it is characterized in that comprising following operation:
1) punching press: a. coiled material exhibition material; B. smoothing; C. stamping-out, its advanced stamping-out connects the muscle station, and stamping-out lead frame station will carry out check of head and the tail spare and process randomized test simultaneously again; D. rewinding;
2) electroplate: a. opens up material; B. electroplate, its process will be carried out check of head and the tail spare and process randomized test; C. rewinding;
3) cut off: this operation will be carried out procedure inspection, and workpiece is carried out randomized test or the check of head and the tail part, and it mainly comprises: a. opens up material, the b. smoothing, and c. cuts off, the d. rewinding;
4) sorted and packaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100162072A CN101294694A (en) | 2008-05-13 | 2008-05-13 | Power type LED lead frame piece and process technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100162072A CN101294694A (en) | 2008-05-13 | 2008-05-13 | Power type LED lead frame piece and process technique thereof |
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| Publication Number | Publication Date |
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| CN101294694A true CN101294694A (en) | 2008-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100162072A Pending CN101294694A (en) | 2008-05-13 | 2008-05-13 | Power type LED lead frame piece and process technique thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103415172A (en) * | 2013-08-02 | 2013-11-27 | 广州致达塑胶五金有限公司 | Outer shell with metal terminal pin and processing method for same |
| CN105983610A (en) * | 2015-01-28 | 2016-10-05 | 欧朋达科技(深圳)有限公司 | Machine-shaping method of locally-printed mobile phone lens ring |
| CN108493181A (en) * | 2018-05-17 | 2018-09-04 | 深圳赛意法微电子有限公司 | Lead frame and semiconductor packing device |
| CN108637084A (en) * | 2018-05-09 | 2018-10-12 | 四川金湾电子有限责任公司 | A kind of processing technology of semiconductor lead frame |
| CN110114610A (en) * | 2016-12-13 | 2019-08-09 | 亮锐控股有限公司 | The arrangement of LED on the lead frames |
-
2008
- 2008-05-13 CN CNA2008100162072A patent/CN101294694A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103415172A (en) * | 2013-08-02 | 2013-11-27 | 广州致达塑胶五金有限公司 | Outer shell with metal terminal pin and processing method for same |
| CN103415172B (en) * | 2013-08-02 | 2016-04-20 | 广州致达塑胶五金有限公司 | Shell with metal lead wire pin and processing method thereof |
| CN105983610A (en) * | 2015-01-28 | 2016-10-05 | 欧朋达科技(深圳)有限公司 | Machine-shaping method of locally-printed mobile phone lens ring |
| CN105983610B (en) * | 2015-01-28 | 2018-02-13 | 欧朋达科技(深圳)有限公司 | A kind of processing molding method for the Mobile phone mirror head circle that band locally prints |
| CN110114610A (en) * | 2016-12-13 | 2019-08-09 | 亮锐控股有限公司 | The arrangement of LED on the lead frames |
| US11049849B2 (en) | 2016-12-13 | 2021-06-29 | Lumileds Llc | Arrangement of LEDs on a leadframe |
| CN110114610B (en) * | 2016-12-13 | 2021-12-21 | 亮锐控股有限公司 | Arrangement of LEDs on a lead frame |
| CN108637084A (en) * | 2018-05-09 | 2018-10-12 | 四川金湾电子有限责任公司 | A kind of processing technology of semiconductor lead frame |
| CN108637084B (en) * | 2018-05-09 | 2019-06-04 | 四川金湾电子有限责任公司 | A kind of processing technology of semiconductor lead frame |
| CN108493181A (en) * | 2018-05-17 | 2018-09-04 | 深圳赛意法微电子有限公司 | Lead frame and semiconductor packing device |
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Open date: 20081029 |