Affordable PCB Assembly High-Quality PCB Suppliers Prototype Circuit Boards for Sale

Product Description

Prototype circuit boards are unpopulated printed circuit boards (PCBs) used for testing and developing electronic circuits. They are typically made from FR4 material, which is a glass-reinforced epoxy laminate that is strong, heat-resistant, and flame-retardant. Prototype circuit boards are available in a variety of thicknesses, copper thicknesses, hole sizes, surface finishes, solder masks, and layer stack-ups.

Sure, here is a product description about Prototype circuit boards for sale, including the capability about board thickness, copper thickness, hole size, PCB surface finish, solder mask, PCB layer stack-up, and PCB material:

Prototype circuit boards are unpopulated printed circuit boards (PCBs) used for testing and developing electronic circuits. They are typically made from FR4 material, which is a glass-reinforced epoxy laminate that is strong, heat-resistant, and flame-retardant. Prototype circuit boards are available in a variety of thicknesses, copper thicknesses, hole sizes, surface finishes, solder masks, and layer stack-ups.

Board thickness

The thickness of a prototype circuit board is typically 0.63mm (25 mils), 1.0mm (40 mils), 1.5mm (60 mils), or 1.6mm (63 mils). The thicker the board, the more rigid it will be, but the more difficult it will be to solder components to it.

Copper thickness

The thickness of the copper foil on a prototype circuit board is typically 1 oz (35 microns) or 2 oz (70 microns). The thicker the copper foil, the more current it can carry, but the more difficult it will be to etch.

Hole size

The size of the holes on a prototype circuit board is typically 0.63mm (25 mils), 0.81mm (32 mils), or 1.0mm (40 mils). The smaller the hole size, the more difficult it will be to solder components to it.

PCB surface finish

The surface finish of a prototype circuit board is typically ENIG (electroless nickel immersion gold), HASL (hot air solder leveling), or OSP (organic solderability preservative). ENIG is the most expensive surface finish, but it is also the most reliable. HASL is a less expensive surface finish, but it is not as reliable as ENIG. OSP is the least expensive surface finish, but it is not as reliable as HASL.

Solder mask

The solder mask is a green or blue coating that is applied to the PCB to protect the copper traces from oxidation and to prevent the solder from bridging between traces.

PCB layer stack-up

The PCB layer stack-up is the order of the different layers of a PCB. A typical two-layer PCB will have a top layer of copper foil, a dielectric layer, and a bottom layer of copper foil. A four-layer PCB will have two additional layers of dielectric and two additional layers of copper foil.

PCB material

The most common material for prototype circuit boards is FR4. FR4 is a glass-reinforced epoxy laminate that is strong, heat-resistant, and flame-retardant. Other materials that can be used for prototype circuit boards include polyimide, ceramic, and metal.

When choosing a prototype circuit board, it is important to consider the following factors:

• The size and complexity of the circuit
• The type of components that will be used
• The operating temperature of the circuit
• The cost

Once you have considered these factors, you can choose a prototype circuit board that is right for your needs.

 

 

Why choose Finest PCB Assembly?

1. More than 19 years experience of in electronic manufacturing services for PCB making.

2. One-stop service | PCB Manufacturing | Components sourcing and PCB assembly one-stop PCBA service to help you easily achieve your electronic products.

3. More than 1000 customers working with us for telecom, IOT, RF, smart control, security, medical, industrial, automotive, 3G / 4G / 5G products.

4. Reasonable and stable price: have established a strong global electronics components supply chain that helps us get
reasonable and stable price

5. Quality assurance: more than 15 years of experience in the engineering team and quality control team to ensure
all products come out under control.
6. Professional replace-solution: help customers source professional replace-solution to achieve faster, lower cost with high-quality components purchasing agent service.
 

PCBA Technical Capability
1. Assembly Type::	FR4, FPC, Rigid-flex PCB, Metal base PCB.
2. Assembly Specification:	Min size L50*W50mm; Max size: L510*460mm
3. Assembly thickness:	Min thickness: 0.2mm; Max thickness: 3.0mm
4. Components Specification
Components DIP:	01005Chip/0.35 Pitch BGA
Minimum device accuracy:	+/-0.04mm
Minimum footprint distance:	0.3mm
5. File format:	BOM list; PCB Gerber file:
6. Test
IQC:	Incoming inspection
IPQC:	Production inspection; first ICR test
Visual QC:	Regularly quality inspection
SPI test :	Automatic solder paste optical inspection
AOI:	SMD component welding detection, components shortage & component polarity detection
X-Ravd:	BGA test; QFN and other precision devices hidden PAD device inspection
Function test:	Test function and performance according to the customer's test procedures and steps
7. Reworking:	BGA rework equipment
8. Delivery Time
Normal delivery time:	24 hours( fastest 12 hours quick-turn)
Small production:	72 hours( fastest 24 hours quick-turn)
Medium production:	5 working days.
9. Capacity:	SMT assembly 5 million points/day; plug-in & welding 300,000 points/day; 50-100 items/day
10. Components Service
A full set of substitute materials:	Have experience in component procurement sourcing, and management systems, and provide cost-effective services for OEM projects
Only SMT:	Do SMT and backhand welding according to components PCB boards provided by customers.
Components purchasing:	Customers provide core components, and we provide component sourcing services.

PCB Specification:
PCB layers:	1-24layers
PCB materials:	CEM1, CEM3, Rogers, FR-4, High Tg FR-4, Aluminum Base, Halogen Free
PCB max. board size:	620*1100mm (Custom)
PCB certificate:	RoHS Directive-Compliant
PCB Thickness:	1.6 ±0.1mm
Layer Copper Thickness:	0.5-5oz
Inner Layer Copper Thickness:	0.5-4oz
PCB max. board thickness:	6.0mm
Minimum Hole Size:	0.20mm
Minimum Line Width/Space:	3/3mil
Min. S/M Pitch:	0.1mm(4mil)
Plate Thickness and Aperture Ratio :	30:1
Minimum Hole Copper:	20µm
Hole Dia. Tolerance(PTH):	±0.075mm(3mil)
Hole dia. Tolerance(NPTH):	±0.05mm (2mil)
Hole Position Deviation:	±0.05mm (2mil)
Outline Tolerance:	±0.05mm (2mil)
PCB solder mask:	Black, white, yellow
PCB surface finished:	HASL Lead-free, Immersion ENIG, Chem Tin, Flash Gold, OSP, Gold finger, Peelable, Immersion Silver
Legend:	White
E-test:	100% AOI, X-ray, Flying probe test.
Outline:	Rout and Score/V-cut
Inspection Standard:	IPC-A-610CCLASSII
Certificates:	UL (E503048),ISO9001/ISO14001/IATF16949
Outgoing Reports:	Final Inspection, E-test, Solderability Test, Micro Section, and More

FAQ

1. who are we?
We are based in Guangdong, China, and start from 2019, sell to Domestic Market(50.00%), North America(15.00%), South
America(12.00%),Northern Europe(12.00%),Western Europe(5.00%),Southeast Asia(2.00%),Mid East(2.00%),Eastern Europe(2.00%). There
are a total of about 301-500 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. what can you buy from us?
PCBA, PCB Assembly, PCBA Board, LED PCBA, Electronic PCBA

4. why should you buy from us not from other suppliers?
*A 18-year one-stop solution provider *Strong R&D group with 30 engineers *Monthly output:45000 sqm of PCBs and PCBAs*4500-square-meter factory *Eight SMT production-line *Automatic SMT, Reflow machine, AOI&x-RAY *Fast response, reply within 24hrs

5. what services can we provide?
Accepted Delivery Terms: FOB, CIF, EXW, Express Delivery;
Accepted Payment Currency: USD, EUR, GBP;
Accepted Payment Type: T/T, L/C, MoneyGram, Western Union;
Language Spoken: English, French