Shenzhen PCB Manufacturing& Components Sourcing& Assembly PCB Circuit Board Factory
PCB Board Sourcing Assembly |
High-density multilayer PCBs Immersion gold PCBs Multilayer PCBs Double sided PCBA
Medical PCBA Industrial PCBA New Engery PCBA
Electronic Smart Home Application PCBA Automotive PCBA POS&Financial PCBA
Electronic Contract manufacturing services Electronic products OEM&ODM services
PCB&PCBA EMS&ECM Turnkey Service Electronic Box Building
Company Information :
Shenzhen Grandtop Automation Co., Ltd was founded in 2005,we are a manufacturer who are specialized in PCB Assembly (SMT, DIP, AI) and electronic product final assembly (EMS) in the top market for global customers.
We have more than 10 years of SMT manufacturing experience, well appointed SMT ,DIP and assembly lines, offering one stop service from SMT,FPC,DIP,EMS, conformal coating, testing, final assembly, component procurement ,design, peripheral products support and so on. we are equipped with High-speed and accurately SMT Equipment ,and we provide a whole range of SPI,AOI,ICT,FCT,X-RAY,ROHS and aging testing for products. All ourshop floors are dust free, all lines are lead free, we are ISO9001 certified company.
Our service
1. PCB Service : Grandtop offers pcb production service from 1-28 layers, the meterials includes standard FR4, Hihg TG FR4, Alumium polymide, Telflon and so on
2. PCB Assembly: Grandtop offers pcb assmelby service from prototypes to mass order. Components ranges from01005, QFN, BGA to through holes. AOI , X-RAY, ICT are equipped to ensure the quality. SMT stencil and cable assemblies service can be provided together.
3. Components sourcing : Grandtop offers electronics components sourcing service. Components are purchased from digikey, mouser...... for prototypes and reliable distributors are large qualities. All IC chips, transistors, crystals ect. are new and original.
4. Programming and Testing : Grandtop offers programming and fuction testing service. HEX file and BIN file are available for IC program are worked with Gradntop. Function test can be proceed after receiving detailed testing instructions and documents.
5. Housing assembly: Grandtop offers assemblly service.From the Smart helmet, wireless sensor, ECR, Kiosks, smart swith , controller box and so on. Grandtop has more and more experience in box build assembly.
PCB Manufacturing with one-stop service
Our capabilities
| Article |
Description |
Capability |
| Material |
Laminate |
materials |
| Board cutting |
Number of layers |
1-28 layers |
|
Min.thickness for inner layers
(Cu thickness are excluded) |
0.003"(0.07mm) |
| Board thickness |
Standard |
(0.1-4mm±10%) |
| Min. |
Single/Double:0.008±0.0 |
| 4layer:0.01±0.008" |
| 8layer:0.01±0.008" |
| Bow and twist |
no more than 7/1000 |
| Drilling |
Min size |
0.0078"(0.2mm) |
| Drill deviation |
±0.002″(0.05mm) |
| PTH hole tolerance |
±0.002″(0.005mm) |
| NPTH hole tolerance |
±0.002″(0.005mm) |
| Copper weight |
Outer Cu weight |
0.5-4 0z |
| Inner Cu weight |
0.5-3 0z |
| Solder mask |
Color |
Green,white,black,red,blue… |
| Min solder mask clearanace |
0.003″(0.07mm) |
| Thickness |
(0.012*0.017mm) |
Pcb assembly one-stop service electronic manufacturer service
E-test Function Test and PCBA Testing
Component sourcing Yes
Certificate ISO13485, ISO9001, IATF16949
Delivery time:
PCB 4-10 days
PCBA 15-35 days
Tolerance of pcb ±5%
Max size of finish board 700*460mm
MOQ NO MOQ (1pcs)
Surface Finish HASL,ENIG,immersion silver,immersion tin,OSP…
PCB outline Square,circle,irregular(with jigs)
package QFN,BGA,SSOP,PLCC,LGA
Sub-assembly Plastic,metal,screen
Our Factory:
Why Choose Us:
FAQ:
Q1: What is needed for quotation?
A: For pcb, we need quantity, Gerber file and Technic requirements(material,surface finish treatment, copper thickness,board thickness ,...)
For PCBA: we need PCB information, BOM, (Testing documents...)
For full assembly product: PCBA Information and product buid information
Q2: Are you a manufacture?
A:Yes,we are. Warmly welcome to visit our factory at any time
Q3: Are my files safe?
A:Your files are held in complete safety and security.We protect the intellectual property for our customers in the whole process.. All documents from customers are never shared with any third parties.
Q4:What is the delivery time?
Normal: 5-10 workingdays for samples, 10-35working days for bulk production.
For Urgent project, We can arrange preferential processing and control the delivery time as you request
Q5. Do you have MOQ?
There is no MOQ in Grandtop.We are able to handle Small as well as large volume production with flexibility.
Contact Us:
Audited Supplier 
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