Turnkey Power Bank PCBA PCB Assembly electronics circuit board
Grandtop is smt PCBA manufacturer 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.
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
Our smt DIP PCBA assembly service:
1. No MOQ for Printed circuit board and smt pcba assembling.
2. One-stop solution for various SMT DIP PCB assembly.
3. Professional PCB Board engineer for one-to-one service.
3. 100% PCBA AOI tested guarantee before shipping
4. RoHS, UL, ISO, SGS certificate approved
5. Factory production Capability of 30000 sqm/month
6. Turnkey EMS (electronics manfacturing service) including pcb manufacturing, compoments sourcing, pcb assembly, pcba conformal coating, box build, PCBA function testing.
7. Excellent Customer Service to Meet Your Special Needs
8. Shipment on time.
ODM PCBs We Can Make:
1) We do PCB from double side up to 30-layer Multilayer PCB, HDI jobs.
2) If you have repeat orders from other suppliers, and you want to transfer to Intech, we can accept FREE OF TOOLING.
3) Except excellent quality and professional service, we also pay every detail for our customers, for example package to use Desiccant packs & moisture indicator in vacuum-sealed pack to protect PCB.
4) Material: We have FR4 TG135/TG158/TG180 normal material in stock, also have FR1/ FR2/ FR3/ CEM1/ CEM3/ ROGERS/ ARLON/ ISOLA.
5) Rigid / flex/ flex-rigid PCBs with UL approved.
6) Flexible,quickly feedback for customers always.
7) Quickly offer will be less then 4 hours, Some top urgent inquiry we can offer within 1hour.
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 |
OUR PCBs
PCB Manufacturing process
Electronics pcba assembly serviceTechnical requirement:
1) Professional Surface-mounting and Through-hole soldering Technolog
2) Various sizes like 1206,0805,0603 components SMT technology
3) ICT(In Circuit Test),FCT(Functional Circuit Test) technology.
4) SMT OEM PCB Assembly With UL,CE,FCC,Rohs Approval
5) Nitrogen gas reflow soldering technology for SMT.
6) High Standard SMT& Solder Assembly Line
7) High density interconnected board placement technology capacity
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 |
Our
DIP Multilayer PCBA
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 |
Company Information
Grandtop Group is spe 10 years' experience in Electronics PCB Assembly contract manufacturing, professionally providing SMT, DIP, MI, AI, Eelectronic PCB assembling, conformal coating, final product assembling, testing, material procurement ,and one stop services such as wire harness, sheetmetal , plastic injection to make up complete product for customers. Our factory has a number of lines of SMT,DIP, assembly and testing, well-equipped with brand-newly imported Juki and Samsung SMT machine, full-automatic solder paste printing machine, ten temperature zone reflow oven and wave-soldering oven. Our factory is also equipped with AOI, XRAY, SPI, ICT, full-automatic splitting machine, BGA rework station and conformal coating machine, with air conditioner and dust-free workshop and lead-free manufacturing process. We have passed ISO9001:2015 international quality management system, IATF16949:2016 automotive industry quality management system and ISO13485:2016 medical device quality management system.
Our DIP SMT PCBA WORKSHOP
Customer Visit
Customers from America and European visit Grandtop for Electronics manufacturing service including BOX build, Printed circuit board Manufacturing and electronic pcb assembly
SMT PCBA Packing and Shipping
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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