Cutom-Made Electronics for PCB Assembly PCBA SMT

Product Description

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 iwth 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.