Customized Box Build Assembly Services for electronics
box build assembly | box assembly | pcb assembly | PCB Prototype | multilayer pcb board | shenzhen electronics
Grandtop is Electronics contract manufacturing service specialized in PCB and assembly, pcba contract manufacturing and final products assembly service . We have professional team and quality control system. Our long-cooperation with global electric components original manufacturer and agent support us a reliable supply chain.
ISO 9001 ISO13485, IATF16949
Why Choose Grandtop
1. One-stop EMS (electronics manufacturing service) from pcb and assembly to box build assembly
2. Hight Quality. Grandtop is ISO9001, ISO13485, ISO16949 certified company, we are long-term cooperated to global top rank electronics original manufacturer or agent.
3. Fast turnaround. Over years experiance with global customer make us flexiable and better service to customers
4.IP Protection
Where is the application for our electronics pcba assembly service?
Our Rigid smt pcb PCBA assembly services are widely used in Industrial and Energy, Medical and Healthcare, Automotive, Information and Communication Technology, Werables, comsumer electronics
Testing Procedures For smt DIP PCBA assembly service:
We perform multiple quality assuring procedures before shipping out any PCB board. These include:
* Visual Inspection
* Flying probe, fixture tool
* Impedance control
* Solder-ability detection
* Digital metallographic microscope
* AOI (Automated Optical Inspection)
oDm PCB manufacturing Capacity
| Items |
Capability |
| OEM PCB Layers |
1-28 layers |
| OEM PCB material |
FR4, FR5, Aluminium,High Tg FR4, Halogen Free, Isola, Rogers |
| OEM PCB Finished Board Thickness |
0.2mm ~ 7.0mm(8mil-276mil) |
| OEM PCB Copper Thickness |
1/3oz ~ 7oz |
| OEM PCB Max gold plating thickness |
50 microinch |
| OEM PCB Min. Trace Width/Space |
0.075/0.075mm(3/3mil) |
| OEM PCB Min. Finish Holes Size |
0.1mm(4mil) for laser holes; 0.2mm(8mil) for mechanical holes |
| OEM PCB Max.Finshed Size |
600mm x 900mm (23.6" x 35.43" |
| OEM PCB Hole Tolerance |
PTH:±0.076mm(+/-3mil), NTPH:±0.05mm(+/-2mil) |
| OEM PCB Soldermask Color |
Green, White, Black, Red, Yellow, Blue,ect |
| OEM PCB Silkscreen Color |
White, Black, Yellow, Blue |
| OEM PCB Impedance Control |
+/-10% |
| OEM PCB Profiling Punching |
Routing, V-CUT, Chamfer |
| OEM PCB Special Holes |
Blind/Buried holes, Countersunk holes |
| OEM PCB Surface Finishing |
HASL, Lead Free HASL, Immersion tin, Immersion gold, Gold plating, Immersion silver, OSP, Carbon, etc. |
| OEM PCB Certificate |
UL, ISO9001, ROHS, SG |
smt PCBA assembly service Capacity
| Items |
Capacity |
| SMT PCBA Assembly Min. IC Pitch |
0.30mm(12mil) |
| SMT PCBA Assembly Foot Pin |
SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA and U-BGA |
| SMT PCBA Assembly Min. Chip Placement |
0201 |
| SMT PCBA Assembly Max. PCB Size |
410mm x 600mm(16.2" x 23.6") |
| SMT PCBA Assembly Maximum BGA Size |
74mm x 74mm(2.9" x 2.9") |
| SMT PCBA Assembly BGA Ball Pitch |
1mm ~ 3mm(4mil ~ 12mil) |
| SMT PCBA Assembly BGA Ball Diameter |
0.4mm ~ 1mm(16mil ~ 40mil) |
| SMT PCBA Assembly QFP Lead Pitch |
0.38mm ~ 2.54mm(15mil ~ 100mil) |
| SMT PCBA Assembly Method |
SMT, DIP, AI,MI assembly |
| SMT PCBA Assembly Certification |
ISO9001, ISO13485, IATF16949 |
Turnkey Electronics manufacturing Service
| pcb service |
PCB circuit design, PCB Layout, pcb manufacturing, pcb copy |
| PCB components |
PCB components advicing, PCB compoments sourcing |
| PCBA |
OEM PCB prototype assembly, pcb with components, |
| Testing |
PCBA AOI test, PCB Assembly BGA X-RAY test, PCBA ICT test, PCBA FCT test |
| Conformal coating |
Conforal coating via coatingmachine , and UV oven |
| Box Build |
BOX build, box assembly |
| Turnkey service |
wire harness, sheet metal, plastic |
FAQ
Q1: What files do you use in PCB and assembly Quotation?
A1: Gerber, pcb. Auto CAD + Bill of Material
Q2: How do you make sure the quality?
A2: Our Product is all 100% tested including Flying Probe Test (for sample), E-test (mass) or AOI.
Q3: Can we visit your company?
A3: Of course! Welcome to visit our company, Grandtop is located in Hualun Tech Park, Shenzhen, Guandong province, china.
Q4: What is the lead time?
Q4: It takes 3-5 working days for sample, 7-10 working days for batch production based on files and quantity.
Q5: Will you keep our information and files secret?
A5: Sure! It is our basic principle to keep business secrets to protect our customers' rights and behalf.
Q6. How to work with you?
A6: -Email and send us the PCB layout file, BOM list
- We will provide reply confirmation within 12 hours and reply to the offer within 3-5 days.
- Waiting for your company to confirm the price, order and payment method.
- We will start the production.
Contact Us
Sharon Duan
Shenzhen Grandtop Electronics Electronics Co., Ltd
Audited Supplier 
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