SMD(surface mount device) type LED short-pitch lead frame

A short-pitch lead wire and lead frame technology, which is applied in the direction of electrical components, electrical solid devices, circuits, etc., can solve the problems of high cost and large material consumption, and achieve the effects of improving production efficiency, reducing material consumption, and reducing production costs

Inactive Publication Date: 2012-07-04
HUBEI KUANGTONG ELECTRONICS
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a SMD type LED short-pitch lead frame to solve the problems of high cost and large material consumption of the SMD type LED lead frame in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • SMD(surface mount device) type LED short-pitch lead frame
  • SMD(surface mount device) type LED short-pitch lead frame
  • SMD(surface mount device) type LED short-pitch lead frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] An SMD-type LED short-pitch lead frame, including a bracket composed of a plurality of lead frame units 1, a plurality of process side units 2 on both sides of the bracket, and a positioning hole 3 provided on the process side unit 2, two adjacent positioning holes 3 The spacing a is less than 12.0 mm, and the row spacing e of the lead frame unit 1 is less than 8.0 mm. The side width b of the process side unit 2 is less than 5.96mm, the rib width c of two adjacent lead frame units 1 in the functional area is less than 1.96mm, and the width d of the connecting rib is less than 3.0mm.

[0012] like figure 1 As shown: the total length L of the lead frame in the present invention is 144.00mm, which is the same as the length of the traditional lead frame, and its width process is adjusted accordingly. The pitch a between two adjacent positioning holes 3 is the pitch a of the lead frame unit 1 .

[0013] plan 1:

[0014] The pitch a of the lead frame unit 1 is less than 12...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An SMD (surface mount device) type LED short-pitch lead frame comprises a support, multiple process edge units and positioning holes, wherein the support consists of a plurality of lead frame units, the process edge units are arranged on two sides of the support, and the positioning holes are arranged on the process edge units. The distance a between two adjacent positioning holes is smaller than 12.0mm, and the array pitch e between the two adjacent lead frame units is smaller than 8.0mm. The pitch and the array pitch between two adjacent central lines on the single SMD type LED short-pitch lead frame are shortened, and more SMD type LED leads can be distributed on the conventional lead frame with each support with 72 LEDs, for example, the pitch of the SMD type LED lead frame is 9.00mm, the array pitch is 6.7mm, the material usage of the SMD type LED lead frame is saved by 35.71% as compared with that of the conventional lead frame with the pitch of 12.00mm and the array pitch of 8.00mm, material consumption and production cost are reduced, and meanwhile, production efficiency is improved greatly.

Description

technical field [0001] The invention relates to a component for producing surface-mounted SMD LEDs, in particular to an SMD LED short-pitch lead frame. Background technique [0002] Surface-mounted SMD type LED light-emitting diode is a green and environmentally friendly light source. It is a new type of surface-mounted semiconductor light-emitting device. advantage. Its luminous colors include full-color, various monochrome and white light, mainly used in various electronic products, large-size LED backlight, decoration, landscape, lighting, car lights, etc., and will gradually replace traditional lighting. [0003] At present, the size and length of the general lead frame of the SMD type LED package is 144.00mm, the pitch is 12.00mm, the row spacing is 7.80mm, the process edge width is 5.96mm, and the precision copper alloy strip is 0.20mm. The pitch, row spacing, and process edge are all large, which increases the consumption of precision copper alloy strips or precisio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01L33/62
CPCH01L24/97H01L2924/0002H01L33/62H01L23/49565H01L2924/12041
Inventor 李胜刚
Owner HUBEI KUANGTONG ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap