説明
pcba service | PCB Assembly service | pcb assembly
ISO 9001, ISO 13485 , IATF16949
PCB Manufacturing, pcb assembly, box/device assembly ( turnkey service for EMS contract manufacturing)
Grandtop is a Turnkey Electronic manufacturing provider specialized in pcb fabricating (pcb manufacturing) and PCB Assembly, pcba contract manufacturing and final products assembly service (box build assembly) . We have professional team and quality control system with over 15 years experience in pcb assembly and final device assembly line. Our long-cooperation with global electric components original manufacturer and agent support us a reliable supply chain. Our factory takes over of 6000 平方メートル, equipted with advanced manufacturing and testing equipments.
Our service: One-stop solution for various SMT DIP PCB assembly and box build , function testing, conformal coating
Grandtop is flexible in meeting your requirements. We have offered Lead-Free (Pb-Free) soldering since 2005. Please review Design to Avoid Tin Wiskers for RoHS compliant (Lead-Free) assembly.
1. Custom PCB Manufacturing PCB Prototype fabricate in
Medical PCB
Industrial pcb
New Energy pcb
Auto pcb
Smart home picb
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) 材料: 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.
| Items | Capability |
| PCB Layers | 1-28 layers |
| PCB material | FR4, FR5, Aluminium,High Tg FR4, Halogen Free, Isola, Rogers |
| PCB Finished Board Thickness | 0.2mm ~ 7.0mm(8mil-276mil) |
| PCB Copper Thickness | 1/3oz ~ 7oz |
| PCB Max gold plating thickness | 50 microinch |
| PCB Min. Trace Width/Space | 0.075/0.075mm(3/3mil) |
| PCB Min. Finish Holes Size | 0.1mm(4mil) for laser holes; 0.2mm(8mil) for mechanical holes |
| PCB Max.Finshed Size | 600mm x 900mm (23.6″ x 35.43″ |
| PCB Hole Tolerance | PTH:±0.076mm(+/-3mil), NTPH:±0.05mm(+/-2mil) |
| PCB Soldermask Color | Green, 白, 黒, Red, Yellow, Blue,ect |
| PCB Silkscreen Color | 白, 黒, Yellow, Blue |
| PCB Impedance Control | +/-10% |
| PCB Profiling Punching | Routing, V-CUT, Chamfer |
| PCB Special Holes | Blind/Buried holes, Countersunk holes |
| PCB Surface Finishing | HASL, Lead Free HASL, Immersion tin, Immersion gold, Gold plating, Immersion silver, OSP, Carbon, 等. |
| PCB Certificate | UL, ISO9001, ROHS, SG |
2. Custom PCBA and pcb assembly
Medical PCBA
Industrial pcbA
New Energy pcbA
Auto pcbA
Smart home pcbA
| Items | 容量 |
| smt PCBA Min. IC Pitch | 0.30mm(12mil) |
| smt PCBA Foot Pin | SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA and U-BGA |
| smt PCBA Min. Chip Placement | 0201 |
| smt PCBA Max. PCB Size | 410mm x 600mm(16.2″ x 23.6″) |
| smt PCBA Maximum BGA Size | 74mm x 74mm(2.9″ x 2.9″) |
| smt PCBA BGA Ball Pitch | 1mm ~ 3mm(4mil ~ 12mil) |
| smt PCBA BGA Ball Diameter | 0.4mm ~ 1mm(16mil ~ 40mil) |
| smt PCBA QFP Lead Pitch | 0.38mm ~ 2.54mm(15mil ~ 100mil) |
| smt PCBA Method | SMT, DIP, AI,MI assembly |
| smt PCBA Certification | ISO9001, ISO13485, IATF16949 |
| 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 |
Why Choose Grandtop?
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
5.No MOQ for Printed circuit board and SMT DIP pcb assembling.
6.Professional PCB Board engineer for one-to-one service.
7.100% PCBA AOI tested guarantee before shipping
8. Factory production Capability of 30000 sqm/month
9. Excellent Customer Service to Meet Your Special Needs.
10. Shipment on time.
We perform multiple quality assuring procedures before shipping out any PCB board. These include:
* Visual Inspection
* Flying probe, fixture tool
* SPI testing for solder paste
* First pieace checking for each batch
* AOI (Automated Optical Inspection)
* X-ray
* ICT Testing
* UV light testing for conformal coating
* Function Testing
Our Certification
会社情報
Our package
Our Partners
We estalished good and long-term cooperation with our customers. PCBA customers wokred with us speak highly of us for our goods and fast service and high quality.
Our Employees
Grandtop is big family, we improve together, have fun together. 
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, 深セン, 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: もちろん! 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 日.
– Waiting for your company to confirm the price, order and payment method.
Contact Us
Sharon Duan
[email protected] grandtop-electrical. com
Shenzhen Grandtop Electronics Electronics Co., Ltd