Hvað er ferlið við að búa til LED ræmur ljós?
What is the LED production process
What is the LED chip manufacturing process?
Actually epitaxial wafer production process is very complex, in the exhibition after the epitaxial wafer, began to LED epitaxial wafer do next electrode (P, N), and then began to use laser machine for cutting the LED epitaxial wafer (previously LED epitaxial wafer mainly use diamond cutting knife), made into a chip, in different locations in the wafer on extraction of nine points test parameters.
- Mainly test the voltage, wavelength and brightness of the wafers that can meet the normal shipping standard parameters and then proceed with the next operation. If the nine-point test does not meet the relevant requirements, the wafers will be put aside for another processing.
2, wafer cutting into chips, % visual inspection (VI/VC), the operator should use magnification microscope 30 times for visual inspection.
3, then use automatic classifier according to different voltage, wavelength, brightness prediction parameters of the chip to fully automatic selection, testing and classification. - Loksins, check (VC) and label the LED chip. The chip area shall be in the center of the blue film, and there shall be at most chips on the blue film, but the number of chips on each blue film shall not be less than chips, and the chip type, lot number, quantity and photoelectric measurement statistics shall be recorded on the label attached to the back of the waxy paper. The chips on the blue film will undergo the final visual inspection according to the same standards as the first visual inspection to ensure that the chips are neatly arranged and of good quality. This makes LED chips (collectively known as squares on the market at present).
In the process of LED chip production, the chip with some defects or electrode wear, sorted out, these are the loose crystals behind, at this time in the blue film there are some do not meet the normal shipping requirements of the chip, it will naturally become a side piece or hair, etc.
Talked about in different locations on the wafer extraction parameters testing, nine points do to do not conform to the requirements of the wafer for additional processing, these cannot be directly used to make the LED wafer square piece, also won’t do any sorting, sold directly to customers, which is currently on the market the LED wafer (but also have good things in your wafer, such as the party).
LED neon ljós
Frá tilkomu neonljósanna, after a hundred years of unfailing. It is a special low pressure cold cathode glow discharge electric light source, og er öðruvísi en önnur eins og flúrpera, háþrýsti natríum lampi, málmhalíð lampi, kvikasilfurslampi, incandescent lamp and other arc lamp. Neon lights are produced by a cold cathode glow discharge under a high voltage field of inert gas filled in a glass tube. The color of the neon lamp is determined by the spectral characteristics of the inert gas. Fluorescent neon lights are filled with argon and mercury, en neonljós gefa frá sér blátt og gult ljós. These two types of neon lights are generated by excited radiation from the atoms of the working gas in the tube. Compared with other electric light sources, neon lights have the following characteristics:
Fyrst, mikil afköst
Neon lights rely on the electrodes at both ends of the light in the high voltage field will be inert gas in the tube, it is different from the ordinary light source must burn tungsten wire to high temperature to light, resulting in a large amount of electric energy in the form of heat energy is consumed, therefore, with the same amount of electric energy, neon has a higher brightness.
Two, the temperature is low, the use is not restricted by climate
Neon lamp because of its cold cathode property, the tube temperature is below 60°C when it works, svo það er hægt að setja það undir berum himni í sólarljósi og rigningu eða í líkamanum.
Lítil orkunotkun
Á tímum stöðugrar tækninýjungar, the manufacturing technology of neon lights and the technical level of related parts are constantly improving. The application of new electrodes and electronic transformers has greatly reduced the power consumption of neon lights, frá 56 vött á hvern metra af lampa til 12 vött á hvern metra af lampa.
Fjórir, langt líf
Neonljós í stöðugri vinnu við stöðugt rafmagn, líf meira en 10,000 klukkustundir, þennan kost er erfitt að ná fram öðrum rafljósgjafa.
Fimm, sveigjanleg framleiðsla, fjölbreyttir litir
Neon er gert úr glerrörum sem hægt er að brenna og beygja í hvaða form sem er með miklum sveigjanleika. Með því að velja mismunandi gerðir af rörum og fylla þær með mismunandi óvirkum lofttegundum, neonið getur framleitt litríkt, marglita ljós.
Sex, kraftmikið, góð áhrif, efnahagslegt og hagnýtt
Neon light screen by the steady light tube and dynamic light scanning tube composition, can be set to jump scan, gradual scan, mixed color change seven color scan. Scanning tube by equipped with microcomputer chip programming scanner control, scanning tube according to the programmed program light or off, forming a flow of pictures, like a rainbow in the sky, like the Milky Way, more like a dream world, fascinating, unforgettable. Therefore, neon is a form of advertising with less investment, strong effect and economic utility
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