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2Layer black PCBA +MORE

2Layer black PCBA




All the above boards are designed by Ricardo who is from Costa Rica and we did one-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly). As his requested, we showed them all here, and the description below is from Dear Ricardo: 

The card shown is the MainBoard of an automation system consisting of several electronic cards. This card has the current technology of IIoT (internet of the industrial things), and the technology M2M (machine to machine). These technologies allow the control of electrical and electronic devices wirelessly by means of 8 channels of relays, which support currents of 10 amperes in voltages of 240 VAC, and up to 15 amperes in voltages of 120 VAC. The card operates with a voltage of 12 VDC and 60 Hz (frequency used in America). It has 3 communication protocols: IEEE 802.11 a/b/g/n: WIFI, IEEE 802.15.1: Bluetooth Low Energy, IEEE 802.15.4: Zigbee. 

These protocols allow you to connect to the LAN (local area network), through WiFi, with option to exit the WAN network (wide area network) also known as: Internet, in addition to smart devices such as: Smart Phones , Tablets, Laptops, etc .; Using Bluetooth Low Energy, and communicating wirelessly with the other electronic cards that make up the automation system, through the Zigbee protocol, this protocol uses the mesh type topology that allows you to configure a network of devices.

Product name: 2Layer black PCBA
Material: FR-4 TG 140
Thicknss: 1.6mm
Copper thickness: 1oz
Solder mask: Black
Silk screen: White
Surface finish: HASL Lead free

The board design had some problems, e.g. holes too small to fit the components, copper wires width/space too close, SMT pads designed wrong, etc. But after work hard together with Richard, we solved them all. It's not easy but we made it. 

For your project, feel free to send us the Gerber data and BOM by email sales@zfpcba.com, and sincerely hope we can work for you as well.

Our PCB capabilities:


1-36 layers


FR-4 (Standard FR4, Mid-Tg FR4, Hi-Tg FR4, Lead free assembly material) , Halogen-Free, Metal Core, Polyester, Polymide, etc.

Board Thickness

0.1mm-6.0mm (.016"-.126")

Copper Thickness


Board size


Min Tracing/Spacing

0.075mm/0.075mm (3mil/3mil)

Min drilling Hole diameter

0.15mm(6mil), 0.1mm(4mil)-laser drill

Solder Mask

LPI, different colors(Green, Green matt, Black, Black Matt, White, Red, Yellow, Blue)

Silkscreen color

White, Blue, Black, Red, Yellow

Surface finish

Lead free HASL, immersion gold, golden finger, immersion tin, immersion silver, OSP, Carbon oil, plated hard gold(up to 100u")

Impedance tolerance


Chamfer of Gold Fingers

20, 30, 45, 60


Flying probe or Testing fixture


Our PCBA Capabilities:


From prototype to big volume, no MOQ

Assembly type

SMT, THT or Hybrid

Parts procurement

Full turnkey (we provide all components)

Partial turnkey ( Customer provide the main components and we provide the rest)

Kitted (Customer provide all components)

Component types

SMT 0201, BGA 0.3mm pitch, QFP 0.3mm pitch, etc.


Custom testing, ICT, FCT, AOI, Test jig