PCB Manufacturing Services


The information below provides a comprehensive overview of Meline Group’s capabilities, encompassing the materials, PCB technologies, and product types we offer. Our “standard” category is tailored for high-volume projects, while our “advanced” category highlights cutting-edge technologies suitable for prototype projects.




RIGID PCBs Materials

FR2, CEM-1, CEM-3, FR4 (standard – halogen free – high performance) Hydrocarbon, High CTI (0), High thermal conductivity, PI

ShengYi, Iteq, Elite Materials Corp., NanYa, Kingboard, Grace, GoWorld, TUC,Meteorwave,Synamic

Mid – Loss material
TUC TU862HF, EMC EM370D, ITEQ IT170GRA, Panasonic Megtron-2

Low – Loss material
N4000-13(series), FR408HR, Megtron-4, Megtron-4S, S7038, S7439, TU872SLK (series), EM-828, EM888, N4800-20(series), I-Speed

Ultra Low – Loss material
Megtron-6, IT150DA, FX-2, FL-700, I-Tera, ASTRA, N6800-22(series), RO4350B, RO3000(series) ,RF-35, RF-35A2, TLX (series), AD250, FL-700LD

Super Low – Loss material and High Thermal Reliability Laminate

Flex PCBs Materials

PI, PET, PSA,SUS,LPISM,Silver ink and Carbon ink ,Metal dome ,Underfill glue
Taiflex, Dupont FR & AP, Panasonic, ShengYi, Doosan. Thinflex, Hanwha, EMI film
Sputtered copper
Modified Polyimide
Silver ink and Carbon in

Include: Dupont, Panasonic
Copper-nickel alloy, Conformal coating, Sputtered copper, Modified Polyimide, Silver ink and Carbon in

IMS PCBs Materials

Bergquist MP, HT & CML
Taiflex, Dupont FR & AP, Panasonic, ShengYi, Doosan.

Include: Dupont, Panasonic
Copper-nickel alloy, Conformal coating, Sputtered copper, Modified Polyimide, Silver ink and Carbon in

Layer count

1 – 42L


HDI / Buried – blind via

Y (2+n+2)

Y (4+n+4 / Anylayer)

Maximum board size

1180 X 610

1400 X 610

Minimum board thickness (mm)

0.15mm for PCB
0.05mm for 1L FPC
0.12mm for 2L FPC

0.15mm for PCB
0.05mm for 1L FPC
0.12mm for 2L FPC

Minimum board thickness (mm)

0.25mm for PCB
0.20 for FPC

0.25mm for PCB
0.16 for FPC

Maximum board thickness



Minimum track / gap OL (mil)
– copper weight dependant

0.075mm for PCB
0.04mm for FPC

0.050 mm for PCB
0.030 mm for FPC

Surface finish

ENIG / GF / OSP / I Ag / HASL (lead) /
HASL (Leadfree) / Plating Au/Ni/ Immersion Sn /

ENIG / GF / OSP / I Ag / HASL (lead) /
HASL (Leadfree) / Plating Au/Ni/ Immersion Sn /

Minimum hole (mech)



Minimum hole (laser)



Maximum Cu weight
OL and IL



Rigid-flex (Y/N)


Y including semi flex

Flexible (Y/N)




Y (Al)

Y (both Al and Cu)

Epoxy via plugging
IPC4761 Type VII (Y/N)



prototype pcb assembly services

PCB Factory Scale

In addition to obtaining ISO 9001:2008 certification, Meline has also been awarded UL certificates E466113 for the US and Canada, TS 16949, and has achieved RoHS compliance, showcasing its dedication to meeting international standards.

Through strategic partnerships with renowned PCB manufacturers and a robust supply chain, we have established a comprehensive range of PCB services. Our capabilities include 2-60L through-hole boards, HDI (High-Density Interconnect), high-frequency boards, backplanes, embedded resistance boards, semiconductor test products, heavy copper power boards, metal-based boards, flexible boards, and rigid-flex boards. We are committed to providing the best solutions in terms of lead time, quality, and after-sales services while maintaining competitive prices.

Meline’s products find extensive applications across various industries such as security and defense, industrial automation, communication systems, medical equipment, and automotive electronics, among others. Our offerings have garnered global recognition and praise from clients.

Meline is dedicated to delivering innovative and reliable solutions to our clients. We strive to foster long-term partnerships built on trust, quality, and exceptional service. Our goal is to be the preferred business partner for our clients.

Quality Assurance

Products Show


Dear Meline team

I wanted to take this opportunity to express my gratitude for the flexible service you have provided us. Your willingnessto accommodate our unique requirements, particularly in areas such as packaging and logistics, has been crucial to oursuccess.

Your dedication to meeting our needs and providing us with customized solutions has helped us improve our processesand better serve our customers. We value the strong partnership we have built with you and appreciate your continuedsupport.
manufacturing of pcb

Top Questions

For immediate order placement, we accept all major credit cards and PayPal.

Net (15, 30, 45, 60) accounts are available to qualifying companies after their application has been approved and processed. To apply for a Net 30 account, please fill out our Application Form and return it to us via email or fax.

Normally, we ship our boards using DHL, FedEx, UPS, and TNT with Delivery Duty Unpaid (DDU) terms. However, we can also accommodate other shipment terms as requested by customers, such as Free On Board (FOB) Hong Kong.

Yes, our factory is fully compliant with the RoHS Directive.

RoHS stands for Restriction of Hazardous Substances. It is a European legislation that prohibits the use of six hazardous substances in manufacturing processes: cadmium (Cd), mercury (Hg), hexavalent chromium (Cr (VI)), polybrominated biphenyls (PBBs), polybrominated diphenyl ethers (PBDEs), and lead (Pb).

At PCB International, we have a strict E-test policy in place for every board we produce. This comprehensive testing process is carried out to identify and eliminate any potential shorts, ensuring the functionality of the boards.

Yes, it does matter. Individually routed boards usually require fixtures and undergo processes that are slower compared to panelized boards arranged in an array.

When requesting a quote, especially if the PCB design is consigned, it is crucial to include this information. This allows us to provide an accurate quote that reflects the specific requirements and pricing considerations.

The shelf life of PCBs is determined based on their surface finishes. According to IPC standards, the shelf life of PCBs is as follows:

HASL (Hot Air Solder Leveling) – 12 months

Lead-free HASL – 12 months

ENIG (Electroless Nickel Immersion Gold) – 12 months

ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold) – 12 months

Immersion Silver – 6 months

Immersion Tin – 6 months

OSP (Organic Solderability Preservatives) – 6 months

The predominant green color of circuit boards is due to the solder mask. The solder mask is a protective layer that is applied over the copper circuits printed on the fiberglass core. It serves to prevent short circuits, soldering errors, and other issues. The green color of the solder mask is commonly used, giving the circuit board its characteristic appearance.

We prefer Gerber formats RS274X and RS274D. The RS274D format requires a separate aperture list for each file.

We may also accept design files in ODB++ and DWG formats.

FR4 is a widely used material in PCB manufacturing. It refers to a type of fiberglass-reinforced epoxy laminate that is commonly used as the base material for printed circuit boards. FR4 is known for its excellent electrical insulation properties, mechanical strength, and flame resistance. It is versatile and can be used to produce both single-layer and multilayer PCBs. FR4 is suitable for various applications and can be used to create both flexible and rigid PCBs.

Certainly! We are more than happy to provide you with our standard stack-up drawings. Additionally, we can also create custom stack-up drawings tailored to your specific requirements.