Please read this notice before using the TAIYO YUDEN products.
REMINDERS
■
Product information in this catalog is as of October 2018. All of the contents specified herein are subject to change
without notice due to technical improvements, etc. Therefore, please check for the latest information carefully
before practical application or use of our products.
Please note that TAIYO YUDEN shall not be in any way responsible for any damages and defects in products or
equipment incorporating our products, which are caused under the conditions other than those specified in this
catalog or individual product specification sheets.
■
Please contact TAIYO YUDEN for further details of product specifications as the individual product specification
sheets are available.
■
Please conduct validation and verification of our products in actual condition of mounting and operating
environment before using our products.
■
The products listed in this catalog are intended for use in general electronic equipment (e.g., AV equipment, OA
equipment, home electric appliances, office equipment, information and communication equipment), medical
equipment classified as Class I or II by IMDRF, industrial equipment, and automotive interior applications, etc.
Please be sure to contact TAIYO YUDEN for further information before using the products for any equipment which
may directly cause loss of human life or bodily injury (e.g., transportation equipment including, without limitation,
automotive powertrain control system, train control system, and ship control system, traffic signal equipment,
medical equipment classified as Class III by IMDRF).
Please do not incorporate our products into any equipment requiring high levels of safety and/or reliability (e.g.,
aerospace equipment, aviation equipment*, medical equipment classified as Class IV by IMDRF, nuclear control
equipment, undersea equipment, military equipment).
*Note: There is a possibility that our products can be used only for aviation equipment that does not directly affect the safe operation of aircraft (e.g.,
in-flight entertainment, cabin light, electric seat, cooking equipment) if such use meets requirements specified separately by TAIYO YUDEN.
Please be sure to contact TAIYO YUDEN for further information before using our products for such aviation equipment.
When our products are used even for high safety and/or reliability-required devices or circuits of general electronic
equipment, it is strongly recommended to perform a thorough safety evaluation prior to use of our products and to
install a protection circuit as necessary.
Please note that unless you obtain prior written consent of TAIYO YUDEN, TAIYO YUDEN shall not be in any way
responsible for any damages incurred by you or third parties arising from use of the products listed in this catalog
for any equipment requiring inquiry to TAIYO YUDEN or prohibited for use by TAIYO YUDEN as described above.
■
Information contained in this catalog is intended to convey examples of typical performances and/or applications
of our products and is not intended to make any warranty with respect to the intellectual property rights or any
other related rights of TAIYO YUDEN or any third parties nor grant any license under such rights.
■
Please note that the scope of warranty for our products is limited to the delivered our products themselves and
TAIYO YUDEN shall not be in any way responsible for any damages resulting from a fault or defect in our products.
Notwithstanding the foregoing, if there is a written agreement (e.g., supply and purchase agreement, quality
assurance agreement) signed by TAIYO YUDEN and your company, TAIYO YUDEN will warrant our products in
accordance with such agreement.
■
The contents of this catalog are applicable to our products which are purchased from our sales offices or
authorized distributors (hereinafter
“TAIYO
YUDEN’official sales channel” Please note that the contents of this
s
).
catalog are not applicable to our products purchased from any seller other than TAIYO YUDEN’official sales
s
channel.
■
Caution for Export
Some of our products listed in this catalog may require specific procedures for export according to
“U.S.
Export
Administration Regulations”
,
“Foreign
Exchange and Foreign Trade Control Law”of Japan, and other applicable
regulations. Should you have any questions on this matter, please contact our sales staff.
1
9
Automotive Application Guide
We classify automotive electronic equipment into the following four application categories and set usable
application categories for each of our products. When using our products for automotive electronic
equipment, please be sure to check such application categories and use our products accordingly. Should
you have any questions on this matter, please contact us.
・HEV/PHV/EV Core Control (Battery, Inverter, DC-DC)
・Automotive Locator (Car location information providing device), etc.
・ABS (Anti-Lock Brake System)
・ESC (Electronic Stability Control)
・Airbag
・Wiper
・Automatic Door
・Power Window
SAFETY
・ADAS (Equipment that directly controls running, turning and stopping), etc.
BODY & CHASSIS
・Keyless Entry System
・Electric Door Mirror
・Interior Lighting
・LED Headlight
・TPMS (Tire Pressure Monitoring System)
・Anti-Theft Device (Immobilizer), etc.
・Car Infotainment System
INFOTAINMENT
・ITS/Telematics System
・Instrument Cluster
・ADAS (Sensor, Equipment that is not interlocked with safety equipment or powertrain), etc.
▶ This catalog contains the typical specification only due to the limitation of space. When you consider the purchase of our products, please check our product specification sheets.
For details of each product (characteristics graph, reliability information, precautions for use, and so on), see our website (http://www.ty-top.com/) .
1
9
15
METAL CORE SMD POWER INDUCTORS(MCOIL
TM
MD SERIES)
METAL CORE SMD POWER INDUCTORS (MCOIL
TM
MD SERIES)
AEC-Q200 Grade 3 (we conduct the evaluation at the test condition of Grade 3.)
*Operating environment Temp:-40½85℃
■PART
NUMBER
*Operating Temp. :
-40½125℃（Including self-generated heat）
REFLOW
REFLOW
AEC-Q200
AEC-Q200
M D
①
M K
②
2
0
③
2
0
T
④
1
R 0
⑤
M M △ △
⑥ ⑦
⑧
V
⑨
△＝Blank space
①Series name
Code
MD
②Dimensions（H）
Code
KK
MK
WK
Series name
Metal base coil specification
Dimensions（H）［mm½
1.0
1.2
2.0
⑤Nominal inductance
Code
（example）
R47
1R0
4R7
※R＝Decimal point
⑥Inductance tolerance
Code
M
N
⑦Special code 1
Code
F
M
⑧Special code 2
Code
△△
⑨Internal code
Code
V
Nominal inductance［μ
H½
0.47
1.0
4.7
INDUCTORS POWER INDUCTORS
／
40
③Dimensions（L×W）
Code
2020
3030
4040
④Packaging
Code
T
Inductance tolerance
±20％
±30％
Dimensions（L×W）［mm½
2.0×2.0
3.0×3.0
4.0×4.0
Special code
Ferrite coating
Metal coating
Packaging
Taping
Special code
Standard
Internal code
Inductor for Industrial and Automotive
■STANDARD
EXTERNAL DIMENSIONS
Recommended Land
Patterns
Type
MDKK2020
MDMK2020
MDKK3030
MDMK3030
MDMK4040/ MDWK4040
A
0.65
0.8
1.2
B
1.35
2.2
2.8
C
2.0
2.7
3.7
Unit：mm
e
L
f
e
W
H
B
C
A
Type
MDKK2020
MDMK2020
MDKK3030
MDMK3030
MDMK4040
MDWK4040
L
2.0±0.15
(0.079±0.006)
2.0±0.15
(0.079±0.006)
3.0±0.1
(0.118±0.004)
3.0±0.1
(0.118±0.004)
4.0±0.2
(0.157±0.008)
4.0±0.2
(0.157±0.008)
W
2.0±0.15
(0.079±0.006)
2.0±0.15
(0.079±0.006)
3.0±0.1
(0.118±0.004)
3.0±0.1
(0.118±0.004)
4.0±0.2
(0.157±0.008)
4.0±0.2
(0.157±0.008)
H
1.0 max
(0.039 max)
1.2 max
(0.047 max)
1.0 max
(0.039 max)
1.2 max
(0.047 max)
1.2 max
(0.047 max)
2.0 max
(0.079 max)
A
e
0.50±0.2
(0.02±0.008)
0.50±0.2
(0.02±0.008)
0.90±0.2
(0.035±0.008)
0.90±0.2
(0.035±0.008)
1.1±0.2
(0.043±0.008)
1.1±0.2
(0.043±0.008)
f
1.25±0.2
(0.049±0.008)
1.25±0.2
(0.049±0.008)
1.9±0.2
(0.075±0.008)
1.9±0.2
(0.075±0.008)
2.5±0.2
(0.098±0.008)
2.5±0.2
(0.098±0.008)
Standard quantity
[pcs] Taping
2500
2500
2000
2000
1000
700
Unit：mm（inch）
▶ This catalog contains the typical specification only due to the limitation of space. When you consider the purchase of our products, please check our product specification sheets.
For details of each product (characteristics graph, reliability information, precautions for use, and so on), see our website (http://www.ty-top.com/) .
hq_i_smd_MD_e-E07R01
1
9
■PART
NUMBER
・ All the Metal Core SMD Power Inductors of the catalog lineup are RoHS compliant.
Note)
・ The exchange of individual specifications is necessary depending on the application and circuit condition. Please contact Taiyo Yuden sales channels.
・ *1: Automotive (AEC-Q200 Qualified) products for BODY & CHASSIS, and INFOTAINMENT. Please check ”Automotive Application Guide” for further details before using the products.
AEC-Q200
＜ ：AEC-Q200 qualified＞
All the Metal Core SMD Power Inductors of *1 marks are tested based on the test conditions and methods defined in AEC-Q200 by family item.
Please consult with TAIYO YUDEN’s official sales channel for the details of the product specification and AEC-Q200 test results, etc.,
and please review and approve TAIYO YUDEN's product specification before ordering.
・ *2: Industrial products and Medical products
●MDKK2020
type
Part number
【Thickness：1.0mm max】
Nominal inductance
［μH½
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.046
0.060
0.085
0.133
0.165
0.275
0.435
0.690
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
3,500 (4,150)
2,200 (2,500)
3,200 (3,650)
2,000 (2,100)
2,900 (3,400)
1,700 (1,900)
1,900 (2,250)
1,350 (1,500)
1,650 (1,950)
1,200 (1,350)
1,300 (1,550)
940 (1,050)
1,050 (1,250)
750 (850)
750 (900)
630 (680)
Measuring
frequency［MHz½
1
1
1
1
1
1
1
1
Note
MDKK2020TR47MM V
0.47
MDKK2020TR68MM V
0.68
MDKK2020T1R0MM V
1.0
MDKK2020T1R5MM V
1.5
MDKK2020T2R2MM V
2.2
MDKK2020T3R3MM V
3.3
MDKK2020T4R7MM V
4.7
MDKK2020T100MM V
10
Absolute maximum voltage：DC20V
●MDMK2020
type
Part number
【Thickness：1.2mm max】
Nominal inductance
［μH½
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
INDUCTORS POWER INDUCTORS
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.046
0.058
0.064
0.086
0.109
0.178
0.242
MDMK2020TR47MM V
0.47
MDMK2020TR68MM V
0.68
MDMK2020T1R0MM V
1.0
MDMK2020T1R5MM V
1.5
MDMK2020T2R2MM V
2.2
MDMK2020T3R3MM V
3.3
MDMK2020T4R7MM V
4.7
Absolute maximum voltage：DC20V
●MDKK3030
type
Part number
【Thickness：1.0mm max】
Nominal inductance
［μH½
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
4,200 (4,800)
2,300 (2,450)
3,500 (4,100)
2,000 (2,200)
2,550 (2,900)
1,900 (2,050)
2,000 (2,300)
1,650 (1,750)
1,750 (2,000)
1,450 (1,550)
1,350 (1,550)
1,150 (1,200)
1,150 (1,300)
950 (1,050)
Measuring
frequency［MHz½
1
1
1
1
1
1
1
Note
／
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.039
0.086
0.100
0.144
0.248
0.345
0.437
0.575
MDKK3030TR47MM V
0.47
MDKK3030T1R0MM V
1.0
MDKK3030T1R5MM V
1.5
MDKK3030T2R2MM V
2.2
MDKK3030T3R3MM V
3.3
MDKK3030T4R7MM V
4.7
MDKK3030T6R8MM V
6.8
MDKK3030T100MM V
10
Absolute maximum voltage：DC20V
●MDMK3030
type
Part number
【Thickness：1.2mm max】
Nominal inductance
［μH½
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
5,400 (6,500)
3,900 (4,500)
4,400 (5,200)
2,400 (2,800)
3,000 (3,500)
2,100 (2,400)
2,500 (3,000)
1,900 (2,200)
2,000 (2,400)
1,350 (1,500)
1,700 (2,000)
1,150 (1,300)
1,400 (1,700)
1,000 (1,150)
1,100 (1,300)
850 (1,000)
Measuring
frequency［MHz½
1
1
1
1
1
1
1
1
Note
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.020
0.020
0.027
0.050
0.074
0.112
0.173
0.263
MDMK3030TR30MM V
0.30
MDMK3030TR33MM V
0.33
MDMK3030TR47MM V
0.47
MDMK3030T1R0MM V
1.0
MDMK3030T1R5MM V
1.5
MDMK3030T2R2MM V
2.2
MDMK3030T3R3MM V
3.3
MDMK3030T4R7MM V
4.7
Absolute maximum voltage：DC20V
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
7,600 (9,200)
5,500 (6,400)
6,400 (8,700)
5,500 (6,400)
6,300 (7,500)
4,700 (5,500)
4,300 (5,100)
3,300 (3,900)
3,400 (4,100)
2,500 (3,000)
2,800 (3,600)
2,100 (2,400)
2,100 (2,700)
1,650 (1,900)
1,800 (2,300)
1,350 (1,550)
Measuring
frequency［MHz½
1
1
1
1
1
1
1
1
Note
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
※
） The saturation current value (Idc1) is the DC current value having inductance decrease down to 30%. (at 20℃)
※1-1） The temperature rise current value（Idc2) is the DC current value having temperature increase by 40℃, when mounted in FR4 High heat dissipation board (board thickness：1.0mm
copper thickness：0.035mm, board size：110×30×1.0mm, land size：12.6×19.6mm). (at 20℃）
※1-2） The temperature rise current value（Idc2) is the DC current value having temperature increase by 40℃, when mounted in FR4 High heat dissipation board (board thickness：1.6mm
copper thickness：0.050mm, board size：100×100×1.6mm, land size：14.6×43mm). (at 20℃）
※1-3） The temperature rise current value（Idc2) is the DC current value having temperature increase by 40℃, when mounted in FR4 High heat dissipation board (board thickness：1.6mm
copper thickness：0.050mm, board size：100×100×1.6mm, land size：44.5×90mm). (at 20℃）
※） The rated current is the DC current value that satisfies both of current value saturation current value and temperature rise current value.
※1-1） MDKK2020, MDMK2020 type
※1-2） MDKK3030, MDMK3030 type
※1-3） MDMK4040, MDWK4040 type
hq_i_smd_MD_e-E07R01
▶ This catalog contains the typical specification only due to the limitation of space. When you consider the purchase of our products, please check our product specification sheets.
For details of each product (characteristics graph, reliability information, precautions for use, and so on), see our website (http://www.ty-top.com/) .
1
9
41
■PART
NUMBER
●MDMK4040F
type
Part number
【Thickness：1.2mm max】
Nominal inductance
［μH½
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.029
0.047
0.047
0.065
0.092
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
7,500 (10,000)
4,600 (5,400)
5,200 (7,500)
3,500 (4,200)
4,200 (6,200)
3,500 (4,200)
3,700 (5,400)
3,300 (3,600)
3,200 (4,500)
2,500 (2,900)
Measuring
frequency［kHz½
100
100
100
100
100
Note
MDMK4040TR47MF V
0.47
MDMK4040T1R0MF V
1.0
MDMK4040T1R2MF V
1.2
MDMK4040T1R5MF V
1.5
MDMK4040T2R2MF V
2.2
Absolute maximum voltage：DC25V
●MDMK4040
type
Part number
【Thickness：1.2mm max】
Nominal inductance
［μH½
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.029
0.036
0.065
0.079
0.130
0.160
0.230
0.330
MDMK4040TR68MM V
0.68
MDMK4040T1R0MM V
1.0
MDMK4040T1R5MM V
1.5
MDMK4040T2R2MM V
2.2
MDMK4040T3R3MM V
3.3
MDMK4040T4R7MM V
4.7
MDMK4040T6R8MM V
6.8
MDMK4040T100MM V
10
Absolute maximum voltage：DC25V
●MDWK4040
type
Part number
【Thickness：2.0mm max】
Nominal inductance
［μH½
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
6,700 (7,800)
5,000 (5,700)
5,000 (6,200)
4,500 (5,100)
4,500 (5,600)
3,200 (3,600)
3,800 (4,500)
2,800 (3,200)
3,200 (4,000)
2,200 (2,500)
2,500 (3,000)
1,900 (2,200)
1,900 (2,200)
1,600 (1,800)
1700 (2,000)
1,400 (1,600)
Measuring
frequency［MHz½
1
1
1
1
1
1
1
1
Note
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
INDUCTORS POWER INDUCTORS
／
42
Inductance tolerance
±20％
±20％
±20％
±20％
±20％
±20％
±20％
±20％
±20％
DC Resistance
［Ω½（max.）
0.016
0.016
0.027
0.041
0.054
0.075
0.107
0.158
0.194
MDWK4040TR56NM V
0.56
MDWK4040TR68MM V
0.68
MDWK4040T1R0MM V
1.0
MDWK4040T1R5MM V
1.5
MDWK4040T2R2MM V
2.2
MDWK4040T3R3MM V
3.3
MDWK4040T4R7MM V
4.7
MDWK4040T6R8MM V
6.8
MDWK4040T100MM V
10
Absolute maximum voltage：DC25V
Rated current ※） ［mA½
Temperature rise current
Saturation current
Idc2
Idc1
Max (Typ)
Max (Typ)
9,000 (13,000)
6,500 (7,500)
8,000 (12,000)
7,300 (8,300)
7,000 (9,400)
5,100 (5,800)
7,000 (9,400)
4,100 (4,700)
5,400 (7,500)
3,500 (4,000)
3,700 (5,200)
3,000 (3,300)
3,500 (5,000)
2,500 (2,800)
2,900 (4,000)
2,000 (2,300)
2,200 (3,100)
1,600 (1,900)
Measuring
frequency［MHz½
1
1
1
1
1
1
1
1
1
Note
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
*1, *2
(Typ)：Reference
※
） The saturation current value (Idc1) is the DC current value having inductance decrease down to 30%. (at 20℃)
※1-1） The temperature rise current value（Idc2) is the DC current value having temperature increase by 40℃, when mounted in FR4 High heat dissipation board (board thickness：1.0mm
copper thickness：0.035mm, board size：110×30×1.0mm, land size：12.6×19.6mm). (at 20℃）
※1-2） The temperature rise current value（Idc2) is the DC current value having temperature increase by 40℃, when mounted in FR4 High heat dissipation board (board thickness：1.6mm
copper thickness：0.050mm, board size：100×100×1.6mm, land size：14.6×43mm). (at 20℃）
※1-3） The temperature rise current value（Idc2) is the DC current value having temperature increase by 40℃, when mounted in FR4 High heat dissipation board (board thickness：1.6mm
copper thickness：0.050mm, board size：100×100×1.6mm, land size：44.5×90mm). (at 20℃）
※） The rated current is the DC current value that satisfies both of current value saturation current value and temperature rise current value.
※1-1） MDKK2020, MDMK2020 type
※1-2） MDKK3030, MDMK3030 type
※1-3） MDMK4040, MDWK4040 type
hq_i_smd_MD_e-E07R01
▶ This catalog contains the typical specification only due to the limitation of space. When you consider the purchase of our products, please check our product specification sheets.
For details of each product (characteristics graph, reliability information, precautions for use, and so on), see our website (http://www.ty-top.com/) .
[i=s]This post was last edited by jj1989 on 2018-10-31 15:40[/i] [p=30, 2, left][size=4]Admin @eric_wang said that his colleague had a broken screen on a Garmin vivosmart bracelet, and was going to gi...
A small thing made of LaunchPad+NOKIA5110There is no flying wire, and the LCD's gnd is just plugged into an IO port, so the IO port is set to lowThe P1 port on the left side of the board is used, and ...
Yesterday I bought an actel board based on Zhou Ligong's EasyFPGA060. It's a bit unconventional, but what's annoying is that there's no CD. It's so troublesome. Is there anyone in the forum using Zhou...
[size=12px]ros kinetic runs the camera information publishing node and then runs the subscription node. [ERROR] [1540550111.974816949]: Client [/image_subscriber] wants topic /camera/rgb/image_raw/com...
As the title says, I have to do my graduation project to build a measurement system. As I majored in optics and don't have much knowledge in electricity, I would appreciate the help of experts....
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
Corelink Semiconductor has launched the CL1100-based 5-7W E27 LED lighting driver system solution DB2. This driver module meets the requirements of small size (L×W×H=5.1cm×2.1cm×1.8cm), low standby...[Details]
LED light sources have many environmental advantages, but early products still have certain technical bottlenecks in heat dissipation and high brightness design that cannot be broken through....[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
Making friends through disassembly
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