The First Full Inorganic Packaging of UV LED in China

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The First Full Inorganic Packaging of UV LED in China
Confidential business information, disclosure prohibited

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Outline
Company profile
Product technology
Quality assurance
Market application
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1.Company profile
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1.1 Company profile
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Hongli Zhihui Group Co., Ltd.
Founding date:2004
Registered capital:710 million Yuan
Legal representative:Guo Ping LI
Stock code:300219.
Hongli Zhihui is a listed enterprise and it is also
known as a National Torch Plan key high-tech
enterprise, who is advance in researching , producing
and marketing for LED packaged devices in
worldwide.
Bytech Electronics Co.,Ltd.
Start-up time: 2013
Registered capital: 11.458 million Yuan
Legal representative Qian WU
BYTECH is the first enterprise who set foot in Full
Inorganic Packaging of UV LED in China. In an
Inorganic Packaging field, BYTECH has the complete
intellectual property in substrate, glass cover, laser
sealing process, and laser sealing equipments. The
company's current products including UV LED, VCSEL
and other OEM products.

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1.2 Events of BYTECH
In 2013
BYTECH
was
established
on
December
3th, 2013.
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In 2014
In April,
BYTECH
launched the
first Full
Inorganic
Packaging UV
LED.
In 2015
In 2016
Won the "excellent
In June 2016 ,
enterprise"
we joined the
in the 4th innovation
Hong Li Zhihui
entrepreneurship
Group and
competition and was
become its
awarded the second prize affiliate.
in"Pearl River Angel Cup".
In October, BYTECH
obtained the certification
of ISO9001 quality
management system.
In 2017
In November,
BYTECH was
titled as a
National
High-tech
Enterprise.
In 2018
Registered as a sciencebased small and mediumsized enterprises of
Guangdong province.
In June 2018, the
company was voted as a
member of Ministry of
Industry and Information
Technology for
semiconductor lighting
technology.

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1.3 Science and technology projects for government
Science and technology projects for government
The capital project in 2014 for business incubation in Zhongshan Torch Hi-tech
Industrial Development Zone: ''application modules of high efficient UVLED based
sterilization in drinking water''.
The Start-up Capital Project in 2014 in Pioneering Park for overseas students in
Zhongshan, China.
The technology innovation project in 2014 for small and medium-sized technologybased enterprises in Zhongshan city -- "UV LED packaging technology and
application".
Guangdong provincial special fund for frontier and key technology innovation
technology project in 2014, for small and medium-sized enterprises of science and
technology -- "UV LED and module for disinfection of drinking water".
2015 Guangdong province application-oriented science and technology research and
development special fund project -- "packaging technology and industrialization of
highly reliable uv LED light source with full inorganic".
National Key Research and Development Project in 2015 "strategic advanced
electronic materials" for research and development plan -- "key technology of thirdgeneration semiconductor solid-state ultraviolet light source materials and devices".
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The holding subsidiary lasitong laser was supported by the sixth batch of innovation
and entrepreneurship research team projects in 2017 in Zhongshan (already
publicized).

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1.4 Setting the industry standard
Participated in drafting the National
Standard for Press and Publication
Industry -- “Control Requirements and
Inspection Methods for Paper during UV
curing process".
Participated in drafting the National
Standard for Press and Publication
Industry -- "The Requirements and an
Inspection Methods during Printing
Process of UV Flexo-Printing".
Participated in rafting the Local Standard
of Guangdong Province--"Technical
Requirements and Testing Methods for
UV LED".
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2. Product technology
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2.1 Core technology platform
Leading technology
• Proprietary intellectual property right in Full Inorganic Packaging
Technology/Proprietary intellectual property right in core
equipment/core materials patent founder.
• Avoid UV radiation effecting on inorganic material and causing
yellowing.
M
Metal
H
Hard glass
• Avoid the disfunction causing by thermal stress at the interface of
organic packaging materials.
Excellent performance
• Light extraction technology: the light extraction
efficiency for the waveband above 350nm up to 95%.
• Excellent heat conduction technology: package thermal
resistance control below 1.0℃/W.
Stable and reliable
• High reliability
• Protective atmosphere encapsulation.
C
Ceramic
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• High static protection 8000V.
• Optical glass lens, easy to clean.
UV LED, VCSEL,
Sensor Sensor are
using the same
packaging
technology.

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2.2 Core intellectual property
Item
pcs
material
2
method
7
application
5
equipment
6
10 Total
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Patent for
invention
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Utility
model
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2.3 Product introduction
6868 Series
Item
1
Wavelength
UVA
365/385/395/405/415nm
2
UVB
305/315nm
3
UVC
255/275/285nm
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3535 UVC Series
3535 Series
2525 Series
Product
series
Electronic
power (W)
Optical output
power (mW)
viewing
angel°
2525 series
3.4-4.2
1000-1400
45
3535 series
4/6
1400-2400
45/60/120
6868 series
15/25
6000-12000
60
3535 series
0.15/2.5
5/25
120
3535 series
0.2/0.5/1
6/12/20
60/120
6565 series
≥4.5
≥100
120
UV LED Manual

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2.4 Module product introduction
Customized/solution services
Module
design
SMT service
Lamp bead
selection
Thermal
design
Temperature
monitoring
Lamp bead
configuration
Optical design
Void rate
control
Stress Test of
the Insulation
The power
supply
UV LED Module
Instruction Manual
UV LED MODULE
Protective
ascension
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IPX4

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3.Quality assurance
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3.1 Quality system and patent protection
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3.2 Research and development facility
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3.3 Research and development facility
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3.4
Quality and equipment - module void rate control
The optimized SMT process guarantees the heat dissipation of the chips.
Vacuum reflow soldering equipment
The void rate of ordinary reflow
Vacuum reflow welding void rate
welding is ≥30%
≤10%
Vacuum reflow welding to
reduce void rate
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3.5
Quality and equipment - module temperature monitoring
Infrared thermal imaging Monitoring module temperature distribution & locating the abnormal chips.
infrared thermal imager
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Shooting example (top view on the left, 3D view on the right)

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3.6 Quality and equipment - module waterproof level upgrade
Through a special process, the UV LED module's waterproof grade can up to IPX4
Solve the problem of "condensate water"
IP waterproof rating
IP waterproof grade test
equipment
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IPX4 experiment of UVLED module

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4. Market application
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4.1 Application case - printing industry
Application: exposure machine, offset press,
inkjet printer, etc.
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4.2 Application case - coating industry
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4.3 Application case - semiconductor equipment
Lithography
machine,
exposure
machine
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4.4 Application case - identification system
Remote infrared
monitoring
Intelligent driving
Face recognition
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4.5 Application case - air purification
Air purification
UV LED tube
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4.6 Application case -UVC sterilization
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Thank you!