To provide you with Professional and High Quality PCBA products and Service
Founded In:2005
Specilized In: SMT, DIP, MI, AI, PCB assembling, conformal coating, final product assembling, testing, material procurement ,and one stop services such as wire harness, sheet metal , plastic injection to make up complete product for customers.
Certification: ISO9001-2015
IATF16949-2016
ISO13485-2016
About US:
150+ employees
Takes over area of 6000 square meter
Managed by Kingdee ERP system
Locations:
Shenzhen Factory
Hongkong Office & Warehouse
UK London Warehouse
USA Office & Warehouse
Grandtop Group was established in 2005, specializing in high quality PCBA OEM & ODM,electronic product turnkey service ,and POS terminal manufacturing. Our headquarter and factory are located in Baoan District Shenzhen City, with 150+ employees and over 6000 m2 shop floor. Globally, we have offices and warehouses in Hongkong, London, Hungary and USA. We have very professional and effective After-service.
We have more than 10 years of experiences in all kinds of PCBA. like medical control, Automotive pcba, new energy pcba, industrial pcba, Financial pcba and POS terminal PCBA etc..
Grandtop is ISO9001 certified company, we have a very robust quality system and professional quality team.we have Reliable Supply Chain, We have established long-term strategic cooperation with the top electronic components manufacturers all over the world, such as Xilinx, TI, Avnet, Future and etc;We have complete inspection for PCBA, such like SPI(solder paste inspection),ICT(In circuit test),FCT(function test),AOI,X-RAY and ROHS.
We has a number of lines of SMT, 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 full-automatic splitting machine, BGA rework station and conformal coating machine, with air conditioner and dust-free workshop and lead-free manufacturing process.
We can support one stop service, including wire harness, sheet metal, plastic injection to be complete products of customer needed.
We also passed ISO13485 of medical device quality management, and IATF 16949 of automotive quality management.
| 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, White, Black, Red, Yellow, Blue,ect |
| PCB Silkscreen Color |
White, Black, 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, etc. |
| PCB Certificate |
UL, ISO9001, ROHS, SG |
We also have very good reputation and long-term cooperation all around of domestic and oversea, such like USA, Canada, UK, Germany, Switzerland, Australia etc.
| Items |
Capacity |
| PCB Assembly Min. IC Pitch |
0.30mm(12mil) |
| PCB Assembly Foot Pin |
SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA and U-BGA |
| PCB Assembly Min. Chip Placement |
0201 |
| PCB Assembly Max. PCB Size |
410mm x 600mm(16.2" x 23.6") |
| PCB Assembly Maximum BGA Size |
74mm x 74mm(2.9" x 2.9") |
| PCB Assembly BGA Ball Pitch |
1mm ~ 3mm(4mil ~ 12mil) |
| PCB Assembly BGA Ball Diameter |
0.4mm ~ 1mm(16mil ~ 40mil) |
| PCB Assembly QFP Lead Pitch |
0.38mm ~ 2.54mm(15mil ~ 100mil) |
| PCB Assembly Method |
SMT, DIP, AI,MI |
| PCB Assembly Certification |
ISO9001, ISO13485, IATF16949 |
FQA
1, How long can I get quotation?
A: Normally within 2 days after receiving your gerber profile or BOM.
2, Is my profile safe?
A: Absolutely yes, Strong believe in IP protection with proven records is our professinal ethics.
3, Do you have any MOQ requirement?
A: We are open for kinds of quantities, Mass products are welcomed, tried order and sample requests are also acceptable.
4, How about your delievery term?
A: Normally 7-15 days for sample, and 30 days for mass products.
5, How about your payment?
A: TT, L/C, D&P, can be negotiated.
6, Can you provide ECM service?
A: Certainly we can, we can support one stop service, we have business suit of wire harness, sheet metal and plastic injection, so we can provide complete products based on customer's needed.
Audited Supplier 
){kind=link}