Printed Circuit Board Assembly FR4 2 - 64 Layer PCB Immersion Gold
+ OSP
Printed Circuit Board Assembly Description:
1. Quick-turn and flexible delivery
2. Support a wide range of PCBs: high-layer, multi-layer,
rigid-flex, high frequency, high speed, etc.
3. Professional supplier positioning
4. Seamless link from prototype to mass production
5. Whole-flow quality assurance, IPC, Special industry inspection
standard.
We focus on your needs:
Clients’ increasing needs fuel our continual growth. The growth of
our PCB layout, Fabrication, assembly, and material management is
driven by the constant pressure to shorten time-to-market and keep
up to date with emerging technologies. Tongzhan's capabilities
enable our customers to focus on their core competencies like R & D
and sales & marketing.
You benefit from our experience:
Most of Tongzhan's employees have more than 4 years of experience
in PCB design, Fabrication, assembly, and parts sourcing. We deal
with more than 2,000 cases per year.
Printed Circuit Board Assembly Parameters:
| Item | Technical Parameter |
| Layer | 2-64 |
| Thickness | 0.5-17.5mm |
| Copper Thickness | 0.3-12 oz |
| Min Mechanical Hole | 0.1mm |
| Min Laser Hole | 0.075mm |
| HDI | 1+n+1,2+n+2,3+n+3 |
| Max Aspect Ratio | 20:1 |
| Max Board Size | 650mm*1130mm |
| Min Width/Space | 2.4/2.4mil |
| Min Outline Tolerance | ±0.1mm |
| Impedance Tolerance | ±5% |
| Min PP Thickness | 0.06mm |
| Bow &Twist | ≤0.5% |
| Materials | FR4,High-Tg FR4,Rogers, Nelco,RCC,PTFE, M4, M6,TU862,TU872 |
| Surface Finished | HASL, HASL Pb Free Immersion Gold/Tin/Silver Osp, Immersion
Gold+OSP |
| Special Capability | Gold Finger Plating, Peelable, Carbon ink |
Printed Circuit Board Assembly Introduction:
Tongzhan was established in 2011 and is committed to becoming a
leading one-stop EMS provider. We specialize in high-speed turnkey
PCB services: PCB Design, Manufacturing, Component Sourcing, PCBA,
and Supply Chain Services. We are good at project management and
cost reduction of EMS. Tongzhan specializes in electronic
manufacturing services for its customers. Our services include PCB
design, PCB fabrication, parts sourcing, PCB assembly, and testing.
We manufacture using materials commissioned by our customers, as
well as our full turnkey project of sourcing, inspecting, and
supporting raw materials. never satisfied. We are constantly trying
to improve all functions and processes of the company. Our goal is
to create greatness by serving our clients with the best possible
service, building profitable solutions for our clients, and
supporting each other along the way. Speed and flexibility are a
way of life for the co-exhibitor. We embrace a fast-paced and
dynamic work environment. We focus on innovation and delivering
great products. Our agility allows us to define and redefine our
markets.
