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About Us
Hongtai Technology Co.,Ltd
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Our History

HongTai Technology Co., Ltd, a China-Hong Kong joint venture enterprise, is established at 1997 to focus on electronic PCB and assembly service. At the background of consumer electronics developing rapidly and China’s Reform and Open policy, Shenzhen City has great advantages in electronics manufacturing, including lower labor cost, government’s tax  reduced policy, lower land cost, etc. At the beginning, HongTai offer PCB and PCBA OEM service, then we enlarged our products line, and we start to develop FPC and membrane switch. 

Our Factory

HongTai specializes in PCB, flex PCB and PCB assembly. They are widely used in computers, industrial controls, digital consumer electronics, medical devices, IT communication, aerospace and other fields.

One-stop services includes PCB layout,PCB fabrication, components sourcing, PCB assembly and finished product assembly.

Advanced test equipment are imported from American, Japan and Germany.  HongTai has passed ISO9001, ISO14001 certificate, while products get UL authentication.

No MOQ and prototype orders are accepted. Quality, delivering, after-sales service are valued by us. 

HongTai is willing to develop business relationship with customers both at home and abroad. Our principle to our customers are, “Be professional, be honest, be creative and customers first, quality first, service first”. You are warmly welcomed to visit us.

Production Equipment



Our Product

PCB; PCB layout design and cloning; PCB Assembly; Flex PCB; Membrane switch 

Product Application

Consumer Electronics; Medical Device; Automotive Electronic; Telecom;   Aeronautics&Astronautics, etc.

Our Certificate

ISO9001, ISO14001, RoHS certification, UL certification


Our Capabilities


PCB Capability


HongTai Technology Co., LTD

Seq

Item

capability

1

Base Material

FR-4, High TG FR-4 , Halogen Free material   ,CEM-3,CEM-1,PTFE,Rogers   ,Arlon ,Taconic, Aluminum base, Teflon, PI ,etc

2

Layers

1-40 ( ≥30 layers needs review )

3

Finished inner/outer copper thickness

0.5-6OZ

4

Finished board thickness

0.2-7.0mm(≤0.2mm needs review),≤0.4mm for HASL

Board thickness≤1.0mm: +/-0.1mm
1<Board thickness≤2.0mm: +/-10%
Board thickness>2.0mm:   +/-8%

5

Max panel size

≤2sidesPCB: 600*1500mm
 Multilayer PCB: 500*1200mm

6

Min conductor line width/spacing

Inner layers: ≥3/3mil
Outer layers: ≥3.5/3.5mil

7

Min hole size

Mechanical hole: 0.15mm
 Laser hole: 0.1mm

Drilling precision: first drilling , First drilling:   1mil, Second drilling: 4mil

8

Warpage

Board thickness≤0.79mm: β≤1.0%
0.80≤Board thickness≤2.4mm: β≤0.7%
Board thickness≥2.5mm: β≤0.5%

9

Controlled Impedance

+/- 5 % Ω(<50Ω),+/-10%(≥50Ω),≥50Ω+/-5% (needs review)

10

Aspect Ratio

15:01

11

Min welding ring

4mil

12

Min solder mask bridge

≥0.08mm

13

Plugging vias capability

0.2-0.8mm

14

 Hole tolerance

PTH: +/-3mil
NPTH: +/-2mil

15

Outline profile

Rout/ V-cut/ Bridge/ Stamp hole

16

Solder mask color

Green, yellow, black, blue, red, white, matte green

17

Component mark color

white, yellow, black

18

Surface treatment

OSP: 0.2-0.5um
HASL: 2-40um
Lead free HASL: 2-40um
ENIG: Au 1-10U’’
ENEPIG: PB 2-5U’’/ Au 1-8U’’
Immersion Tin:0.8-1.5um
Immersion silver: 0.1-1.2um
Peelable blue mask
Carbon ink
Gold plating: Au 1-150U’’

19

E-Test

Flying probe tester :    0.4-6.0mm,max   19.6*23.5inch

Min spacing from test pad to board edge :  0.5 mm

Min conductive resistance :   5 Ω

Max insulation resistance  :    250  MΩ

Max test voltage :    500 V

Min test pad diameter : 6 mil

Min test pad to pad spacing  : 10 mil

Max test current    :    200 MA

20

AOI

Orbotech SK-75 AOI : 0.05-6.0mm,max 23.5*23.5inch

Orbotech Ves machine :    0.05-6.0mm,max   23.5*23.5inch


PCBA Capability


HongTai Technology Co., LTD


Tech Standard

Type of Assembly

THD,SMT,SMT&THD Mixed

Components

Passived  Parts, smallest size 0201, BGA, QFN, POP , Finepitch   to 8 mils

Bare Board Size

Smallest: 6.35mm*6.35mm

Largest :  508mm*508mm

Min IC & QFN Pitch

0.012”  (0.3mm)

Max BGA Size

74mm*74mm

Type of Service

Tur-key,Partial Tur-key or Consignment

Testing

X-ray inspection

AOI (Automatic Optical Inspection)

ICT (In-Circuit Test/ Functional Testing)


FPC Capability


HongTai Technology Co., LTD

Seq

Item

Standard

Special

1

Production Capability

Single-sided:20,000M²/Month

N/A

Double-sided/Multi-layers:10,000M²/Month

N/A

2

Base Material

Polyimide (Kapton) ( PI )

Polyester (PET)

3

Layers

Flexible Printed Circuit(FPC) Board:1~6layers

8Layer

Rigid-Flex Board:2~6layers

8Layer

4

Maximum Size

250*1200mm

500*1200mm

5

Maximum Thickness

0.75mm

N/A

6

Minumum Thickness

0.05mm

N/A

7

Product thickness tolerance

±  0.03mm

±  0.02mm

8

Copper Thickness

12um (1/3OZ),18um (1/2OZ) , 35um (1OZ),   70um (2oz)

6um(1/4OZ),   140um (4OZ)

9

Minimum Line Width/ Distance between stitchings

± 0.05mm

± 0.03mm

10

Stiffener material type

PI / FR4 / PET / Steel piece

N/A

11

Etching tolerance

±  0.02mm

N/A

12

Minimum Hole Diameter

0.1mm

N/A

13

 Hole tolerance

PTH: +/- 0.05mm
NPTH: +/-0.03mm

N/A

14

Outline profile

Punching , Laser cut

N/A

15

Outline Dimension     tolerance

±  0.1mm

±  0.05mm

16

Solder mask color

Yellow, Black, white

Green, Red, Blue

17

Surface treatment

OSP: 0.2-0.5um
ENIG: Au 0.03um - 0.15um
Immersion Tin:0.5-1.5um
Immersion silver: 0.1-1.2um
Gold plating: Au 1-150U’’

HASL : 1- 20um

18

Thermal shock test

288 ± 5 ℃   , 10S , 3times

N/A

19

Environmental Requirement

ROHS 

N/A


Membrane switch / Keypad Capability


HongTai Technology Co., LTD

1, Electronic properties

Circuit Grade:

35V(DC),100MA,1W

Contact Resistance:

10Ω~500Ω


Depending on wire length and the materials

Insulation Resistance:

100MΩ 100V

Medium Withstand Voltage:

250VRms(50~60HZ 1min)

Contact Bounce:

<5ms

Service Life:

Flat Type:>5 million times


Touch Type: > 1 million times

2, Mechanical properties

Operating Pressure:

Flat Type:57-284g  ( 2~10 OZ)


Touch Type: 170-397g ( 6 ~ 14 OZ )

Switching Position:

Flat Type: 0.1~0.5mm


Touch Type: 0.6~1.5mm

3, Environmental Parameters

Operating Temperature:

 - 20 ~ + 80

Storage Temperature:

 - 40 ~ + 80

Temperature :

40, 90% ~ 95% , 240 hours

Vibration : 20G,max.(10~200Hz,   Mil-SLD-202,M204. condition B)


Production Market

HongTai has built up cooperation with customers from all over the world. Most of our circuit board customers come from North America and Europe. We aim to provide professional electronic solutions to help our customers save time, money and energy.

Our service

We help to make you idea to be produced, PCB and PCBA prototyping first, and then high volume. We take responsibility of the PCB, flex PCB board, PCBA and membrane switch we make.