Bright ideas-custom designed

LED-ChipsSMD-LEDsLED-Modules

Made in Germany

OSA Opto Light GmbH marketsits products worldwide under thetrademark "OSA" through numer-ous representatives at home andabroad. OSA was founded in Berlin,Germany during 1991 and mostof the OSA employees have morethan 25 years experience in thefield of solid state lighting.Our highly motivated team of

chemists, physicists and engi-neers develop and manufacturespecial LED - chips, surfacemounted LEDs (SMD - LEDs) in-cluding white and high powerSMD-LEDs as well as customdesigned LED - modules formedical, automotive, industrialelectronics, back lighting andgeneral lighting applications. Weare a medium size company,

innovative and flexible.Our factory is located in Berlinand utilizes more than 1500 sqm(including 300 sqm clean room).We have state-of-the-art produc-tion facilities, technologies andprocesses which include productdevelopment, testing, a flexibleautomated production of chips,SMD packaging of various pack-age sizes including high power

Bright ideas- custom designed

packages, 100% testing, LED-module assembly, developmentand construction of productionequipment and tooling. Our quality management systemis certified to ISO 9001 and oper-ates also according to ISO TS16949. Responsibility for qualityat all levels is an essential elementof our company´s strategy, i.e. todevelop, produce and supply

products that achieve a qualitystandard which guarantees cus-tomer satisfaction. We realize this goal by closeteamwork among all employeesaccording to the principle of "acontinuous improvement in quali-ty and productivity".

OSA Opto Light GmbH is com-mitted to providing cost effectivequality solutions and to remainyour innovative technology partner.

Optoelectronics- Made in Germany

OSA Opto Light GmbH is yourpartner for development andproduction of standard andcustom - designed LED - chipssuch as:

High ppower cchipsHigh sspeed cchipsMonolithic ddisplaysSpecial cchip ddesigns

Based on the material systems(Ga,Al)As, ((Ga,In)As GGa(As,P),and (Al,In,Ga)P we offer a wideproduct spectrum of LED - chipsin the visible (550 - 6650 nnm)and near IRED-(660 - 11060 nnm)range. With these chip tech-nologies we can cover thedemand for lower intensityranges as well as for high effi-cient chips.

One of our key competences isthe substrateless (Ga,Al)As -technology, which allows us tooffer our customers LED - chipsin the wavelength range of λP

= 635 - 9970 nnm with a highexternal quantum efficiencyand an excellent long time sta-bility. The emission wavelengthcan be chosen in 5 tto 110 nnmsteps and narrow wavelengthselections (down tto ttolerancesof ±± 33 nnm) can be offered.

Our (Ga,Al)As technology pro-vides chips without secondarypeak. Some of the designs aredeveloped for short switchingtimes ttill 55 nns.

A 100 % high speed test of theemitted spectrum is realized tofit our customers demand. Thetest includes peak, ddominantand ccentroid wwavelength, hhalfwidth ((FWHM), ccheck ffor ssec-ondary ppeaks, aand rradiantintensity // lluminous iintensity.The standard chip sizes for cur-rents up to 50 mA DC arebetween 210 µm and 365 µmsquare.

For high power applicationsOSA Opto Light GmbH devel-oped chips with large area p/n-junctions. The chip layout hasbeen designed for differentdirect currents in the rangebetween 100 mmA aand 22 AA. Thetable lists the standard chipsizes. The maximum applicablecurrent depends on the ther-mal resistance of surrounding,on material and operating con-ditions.

Standard Chip 360 µm

RED ( Ga, Al ) As, Chip 700 µm

( Al, In, Ga ) P, Chip 700 µm

LED - Chips

Customer specific chip layoutscan be designed within a shorttime frame for small and largeproduction volumes. There isalso the possibility to adjustthe vvalues ffor bbrightness, ffor-ward vvoltage aas wwell aas tthe

tolerance ffor aa wwavelengthselection according to cus-tomer specification.Custom designed chip metalli-sations including solderablesystems are possible for thefront and reverse side of the

chip. Most of our chips can beprovided as bare dices, pack-aged in our SMD - packages(see next pages) or in 3 mmmand 55 mmm standard LED-lamppackages with viewing anglesbetween 10° aand 1100°.

Chip size [μm] p/n Area [mm²] Pad

265 0.07 1 square or circle

325 0.09 1 square or circle

360 0.12 1 square or circle

415 0.16 1 square

465 0.20 1 square

700 0.47 2 circle 80 µm

960 0.89 4 square 105 µm

1960 3.78 8 square 120 µm

RED Chip 960 µm RED Chip 1960 µmIRED Lamp 3 and 5 mm

Table of chip sizeand areas

Monolitic integrated displays

Conventional rred mmonolithic ddisplays ((660 nnm)

High iintegration ddensity oof eelements oon rreduced sspaceSmallest ddistances bbetween tthe eelements ddown tto 220 µµm

High integration density of theelements on smallest arease.g. printing line 128 elementsat 8 mm length

Arrangement of different symbols in variousshapes were complex displays are needed onreduced areas

Manufacturing of various numeric displays for application in different optical devices, medical equipment or measurementsystems

40 µm in square lighting dot with 20 µm distance to the next element

Presentation of numbers and letters on where the space is limited e.g. alphanumeric display with 16 segments and 2 digit points

Miniature integrated displays

Presentation oof ddifferent ssymbols iin vvarious ccolours wwith tthe aadvantages

100 ttimes hhigher lluminous iintensity iin ccomparison tto cconventional mmonolithic ddisplays Colours ffrom ggreen ((572 nnm) uup tto rred ((645 nnm) aare aapplicable

Point source 625 nmswitched on / offchip size 450 x 550 µmsign size 200 µm

triangle 615 nmswitched on / offchip size 290 x 290 µmsign size 120 µm

square 572 nmswitched on / offchip size 480 x 530 µmsign size 280 µm

7-segment display 572 -660 nmswitched on / offchip size 1470 x 1980 µmsign size 600 x 1100 µm

OLS-150 Size 1206

OLS-153 Size 1206

bipolar-bicolour

OLS-13xSize 1206

duplex andtriplex

OLS-330Size 1206

with lens, 40°

OLS-210Size 1208Side-view

OLS-180Size 0805 low profile

OLS-173 Size 0805 bipolar-bicolour

OLS-170Size 0805

SMD-LEDs - visible and infrared

OSA Opto Light GmbH hasdesigned several PCB - basedSMD-LED packages for varioussizes, radiant characteristicsand chip types. This packagesfits the requirements of visibleand infrared light in the wave-length range 460 -1500 nm

All devices can be characterizedat 20 mA, 2 mA (low current)and under custom specific con-ditions. Most of them can bepackaged tape up and tapedown. The thin film technologyenables a doubled external

quantum efficiency. These visi-ble LED (red, amber, yellow,green) achieve 1-3 Candelalight intensity @ 20 mA in thepackage OLS-330. The wave-length 660, 850 and 950 nmare available in this technologytoo.

The series OCL-4xx is anAl2O3- ceramic based ceramicpackage is providing superiortemperature stability (evenunder autoclave conditions forsome chip technologies) and

excellent long time stability forUV, Blue and colour conversiontypes. The series OCL-410 is abipolar / bicolour type like red /green or red/ white colorswitchable LED. If the polarity

of the external circuit isunknown or shall not defined,the series OCL-420 is a bipolarindicator LED in differentcolours like blue, white, warmwhite and green.

Low Power ceramic series OCU-4xx

left: OCL-420 BE460/BE460 right: OCL-400 SWW

0,8

0,6

0,4

0,2

0380 430 480 530 580 630 680 730 780

Wavelength [nm]

OCL-440 GWW

gas lamp light

Inte

nsity

[a.u

.]

Comparison ofgas lamp light and special designed LED

Colour conversion is more thanwhite or warm white light forgeneral lighting. OSA optolight develops and produces,based on different excitationLED- Chips and numerousphosphors, special LED with

high conversion rates, purecolours like green and yellowwith a brilliant colour homo-geneity and stability. Typical forthese LED are comparablewide FWHM- values in therange of 60-100 nm. OSA opto

light can furthermore combinethese phosphors to realize cus-tomized, ultra wide light sour-ces with FWHM > 300 nm orspecific spectral characteristics.

Comparison of gas lamp light and specialdesigned LED as an combination of three dif-ferent phosphors

UV-LEDs

The product family OCU-400meets the requirements oflow power applications.Available wavelengths are inthe range of 350 nm … 430nm. Typical applications aredocument checking systemsand illumination systems.

Low Power

High Power up to 1.5W

The OCU-440 range has beendesigned for high powerapplications in the range upto 1.5 W electrical power dis-sipation with a very good reli-ability and life time. At pres-ent the available wave-lengths are between 365 and

430 nm. Some key applica-tions are illumination sys-tems and curing of photo-sensitive systems like pho-toresist, ink and glue.

Typical spectra of UV-LEDare characterized by a FWHbelow 15 nm. Wavelengthtolerances are ± 3 nm alsofor customized solutions.

High Power LEDs

High power packages are thenecessary bridge betweenhigh current chips and cus-tomer applications. Their maintask is to conduct the heatfrom the chip to surroundingarea in order to provide a highquality device performanceand reliability. Based on thebroad existing chip selection inthe wavelength rangebetween 365 nm 1550nm weare able to choose the rightwavelength for customersapplication. LED´s with colourconversion (OCX-440) providea wider spectral FWHM thandirect emitting chips. Besidessingle wavelength applicationthe combination of severalchips also enables the simula-tion of defined energy distribu-tions like shown in the figurebelow.

OCX-440 family ceramicbasedHigh temperature solutionRth < 10 K/WPower dissipation max 1.5 K/WRadiative characteristicLambertian (120°) Colour conversion

OLS-690 family P.C.B.basedfor Rth 30-40 K/WOCL-690 family ceramicbased for Rth < 5 K/WElectrical insulated thermalpad40° viewing angle

spectr

alin

tensity

[W/nm

]

350 450 550 650 750 850 950 1050

Wavelength [nm]

0,014

0,012

0,010

0,008

0,006

0,004

0,002

0

Spectral distribution of theradiation, emitted by a LED-array, consisting of 14 differentLED- types

LED-Modules

UV- high power module 405 nm, optical power 15 W,

electric power 120 W

Visible LED solutions (PWM-dimmable RGB- Module,white module )

OSA opto light utilizes its highexperience in solid state light-ening technology also in thecustom design of LED-mod-ules from prototypes to volumeproduction quantities. We canapply here the full wavelength

range from 350 to 1550 nm.Our capability for in-houseselection of LEDs according totight tolerances in brightness,colour and forward voltage canalso be applied in LED modulesfor OEM- customers. Our

module technology includesalso thermal managementsolutions like metal core P.C.B.,active or passive heat sinks andtemperature protection of theLED by a special circuit on theP.C.B.

UV-Modules

Photochemical processes likecuring requires higher powerdensities not achievable withdiscrete LED. Thus OSA optolight developed solutions inCOB - technology. The ModuleOLM-018 meets the require-

ments of medium radiant den-sities, e.g. at a wavelength of395 nm a power density of 1,5-2 W/cm² can achieved. Thismodule can combined with thecontrol unit OEM-006 to oper-ate chips in the whole wave-

length range. The reflectiveoptics for the module OLM-021 provides an full viewingangle of 18 degree.

System OLM018 Air - turnkeyready system with forced aircooling

OLM-021 module with reflector

calculated radiative characteristic

Dim Unit Description

λP nm Peak wavelength, maximum of radiant intensity Ι = Ι(λ)typically used for IR – applications

λC nm Centroid wavelength - the wavelength which devides the integral of the spectrum into equal parts

λD nm Dominant wavelength, calculated as maximum of functionΙV(λ) = Ιe(λ) V(λ)

with V(λ) eye response function at day light. Due to this, the peak wavelength for red LEDs is larger than the dominant wavelength, for blue LEDs it is smaller. In the dark the function V(λ) is shifted, therefore the colour appearance at low intensity levels may be shifted, too.

λ1/2 nm Full width at half maximum, depends on epi-technology, largest values for diffused p/n- junctions, smallest values for QW-p/n junctions

φe W Power, total radiant flux of an emitting system

Ιe W/sr Radiant intensity, measured acc. CIE 127 cond. B (0,01 sr)

φV lm Total light flux of an emitting system

ΙV Cd Light intensity, measured acc. CIE 127 cond. B (0,01 sr)

CRI % Colour rendering index, key parameter for light quality. Describes the feasibility of a light source to illuminate an object like a human face in a way, that the human eye get the same appearance in comparison to a black body radiator. For indoor applications a CRI of > 85% is necessary.

Explanation of the units:nm: Nanometer W: Watt W/sr: Watt per steradiant Lm: Lumen Cd: Candela

Technical information

To describe the reliability and lifetime of LEDs, it isnecessary to distinguish between two different failure modes:

the total failure the degradation as a time dependent reduction of light intensity.

For the total failures one observes two effects:

early life failures (failures visible in the function test at the application) (for OSAdiodes in the range of 10 ppm) failures during operation (for OSA diodesbelow 1 ppm).

Degradation determinated failures (intensity below50% of initial intensity) depend very strong onoperating conditions, chip material system andpackaging technology.

The mean time to failure varies between several10.000 hours for white SMD LEDs and above100.000 hours for (Ga,Al)As and (Ga,Al,In)P basedLEDs.

550 600 650 700 750 800 850 900 950 1000

(Ga,In)As

(Ga, Al)As

Ga (As, P), GaP

(Al, In, Ga)P

Reliability and life time

OSA OOpto LLight GGmbHKöpenicker SStr. 3325 // HHaus 220112555 BBerlinGermany

Phone: +49-((0)30-665 776 226 883Fax: +49-((0)30-665 776 226 881E-MMail: contact@osa-oopto.comInternet: www.osa-oopto.com

OSA Opto Light GmbH - we are your partner forcustomised solutions in the field of solid state light-ing. A various range of chips, chip and packagingcombinations will provide you the right solution foryour application.

Our custom designed LED-modules for OEMs arean efficient way for your radiation or light source.

Please contact us with your requirements and appli-cations. Our engineers have the ability to assist youin the development phase of your product. By work-ing closely together we will ensure you will achieve ahigh quality cost effective solution.

DIN EN ISO 9001: 2008Certificate No. 12 100 16393 TMS

Bright ideas-custom designed

LED Chips

Monolitic displays

Miniature displays

SMD-LEDs

Thinfilm-LEDs

UV-LEDs

High Power LEDs

LED-Modules