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- 1. PREPARED BY- KHUSHBU PARMAR (16EE043) INTERNSHIP PRESENTATION OF
- 2. PRODUCTION
- 3. Production sections S.M.T SECTION DRIVER SECTION EXTRUDER SECTION ASSEMBLY AND PACKAGING
- 4. S.M.T section • full form is Surface mount technology. • For reduce the size of electronic device. • Components having size in mm. • Work is done by machines. • Less manpower • Work progress is very fluent
- 5. Process flow of S.M.T ROW materials Stencil printing Finished good material Peak and placed row material Rework material Reflow oven
- 6. Machines of S.M.T section
- 8. Driver section • electronic components manually placed • Man power > machinery • Error is high • Work progress is good but less then S.M.T section • Finished good of S.M.T is used as a semi finished good
- 9. Process flow of driver section Pre forming area M.I section Finished good material(driver) Wave soldering epoxy section Touch up section
- 10. raw material S.M.T row material • S.M.T Resisters • S.M.T Diodes • S.M.T Integrated circuit • Led chip • Soldering pest • PCB • S.M.D red glue Driver raw material • Resistors • Diodes • Integrated circuit • Inductors • Transformers • Soldering wire • flux • N.T.C • M.O.V • Capacitors(ceramic and box )
- 12. • LED(light emitting diode):-chip of semiconductor(GaAs) material-coated with phosphors - p-n junction create with doped impurities - Holes and electrons meet and photon is emitted - Emitted Wavelength decide color(band gape) - Reflective index made up of silicon Color Wavelength range (nm) (lm/W) - Red 620 < λ < 645 72 - Red-orange 610 < λ < 620 98 - Green 520 < λ < 55 93 - Cyan 490 < λ < 520 75 - Blue 460 < λ < 490 37
- 13. • Lumanous: how much visible lights are emit by led chip. • There is three type of led chip • This is Temprature at which Aluminium emit wavelength of this color 1. Warm white-3000k-900lm 2. Natural white-4000k-960lm 3. Cool day light-6000k-1000lm • Resister:Typical examples of resistance codes • 102 = 10 00 = 1,000 Ω = 1 kΩ • 0R2 = 0.2 Ω
- 14. • S.M.T Capacitor: color give a knowledge of value o Light grey< 100 pF. o Medium grey colour- 10 pF to 10 nF. o Light brown colour- 1 nF to 100 nF. o Medium brown colour - 10 nF to 1 μF. o Dark brown colour- 100 nF to 10 μF. o Dark grey colour-0.5 to 50 μF
- 15. DRIVER
- 16. Extruder section • Diffuser and base is manufacture • Square, round and mushroom type of diffuser • 5.5 mm,6.6 mm,9.5 mm PCB slot • 1 foot,2 foot,3 foot and 4 foot pcb • Only diffuser is also manufacture for aluminum base • Machinery work
- 17. Process flow of extruder Row materials(et-3117,et-3113) Extruder process Finished good material(housing) Material cutting Holing for holding and driver wire
- 18. Extruder machine
- 19. Assembly& Packaging section Assembly and packaging Extruder Driver S.M.T
- 20. Process flow of Assembly section 1) RM from various dept. and Store according to the BOM 2) Preparing SFG from RM through Assembly processes 3) SFG is put under Ageing 4) SFG undergoes Packing Processes 5) FG prepared 6) Dispatching FG to Stores
- 21. Assembly overview C.O.B (round and square)packing • Housing • P.C.B • Diffuser • L.G.P • White paper(reflector) • Black spunch • Driver • i/p ,o/p wires Batten packing • Housing(base and diffuser) • Driver • Insulating material on driver • i/p & o/p wires
- 22. • High voltage test:130v,240v and 270v batten- 3 hour panel- 2 hour aging or burning process is taken place • Printing -automatic ink injector printer(date and year) -lesser printer (logo and driver printing) • Packaging-mini box and master box packing with tape and strip