Welcome to Grandtop! A One stop Multilayer PCB Circuit for Gold pcb board metal detector circuit Factory
Our factory is certified with :
ISO 9001, ISO 13485 , IATF16949
Grandtop PCBA is a professional PCB SOLUTION SERVICE in shenzhen provider, specialized in one-stop service for pcb manufacturing, PCB assembly, components sourcing, contract manufacture,function testing, as well as electronic products final assembly.
OUR PCB
We offer
High-density multilayer PCBs ,
Immersion gold PCBs ,Multilayer PCBs,Double sided PCBs, Rigid-Flex Board and so on
Our Custom PCB Manufacturing PCB Prototype fabricate are widely used in
Medical PCB
Industrial pcb
New Energy pcb
Auto pcb
Electronics Smart home application pcb
POS & financial PCB
Our PCB manufacturing Capability
| 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 |
1) We do PCB from double side up to 28-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.
PCB producing process
OUR PCBA
We offer
High-density multilayer PCBA,
Immersion gold PCBA,Multilayer PCBA,Double sided PCBA, Rigid-Flex Board assembly and so on
Our Custom PCBA and pcb assembly
Medical PCB-a
Industrial pcba
New Energy pcba
Auto pcba
Electronics Smart home application pcba
POS & financial PCBA
PCB assembling capability
| Items |
Capacity |
| 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 |
PCBA PRODUCING PROCESS
OUR FINAL DEVICE ASSEMBLY
We offer PCB & PCBA, Electronics box building, electronic contract manufacturing service, electronic products OEM & ODM Service
Why Choose Grandtop?
1. One-stop EMS /Turnkey EMS (electronics manfacturing service) including pcb manufacturing, compoments sourcing, pcb assembly, pcba conformal coating, box build, PCBA function testing.
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.
Our Testing Procedures For PCB PCBA assembling:
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
Company Information
Grandtop Group is spe 17 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.
Packing Information
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.
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
sharon.duan@ grandtop-electrical. com
Shenzhen Grandtop Electronics Electronics Co., Ltd
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