HASL Lead Free PCB Assembly Service IPC-6012B Certified

High Level Customized Prototype Fr4 PCB Assembly Quote In China

Basic information:

Material:Fr4

Layer:4

Board thickness:1.2mm

Surface finish:HASL lead free

Copper weight:1OZ

Solder mask:Blue

Silk screen:White

Production:PCB+Components+Assembly

Delivery time:15 days for 10 sets

PCB:Customized

Components:We purchase

Prototype PCB Assembly

High Level Customized Fr4 PCB Assembly In China

1. PCB Assembly: SMT, THT/DIP, BGA, COB soldering.

2. PCB Manufacture: 1-24 layers, Buried & Blind via PCB, Imdepence PCB, High frequency PCB, FR-4,Aluminium PCB.

3. PCBA Testing Jigs: PMMA, Automated & Manual Tooling.

4. PCB Design: we need a idea or schematic diagram for PCB & PCBA design.

5. PCB Copy & Clone: PCB and PCBA copy, we can provide you gerber file and BOM file

Surface Mount Technology

Through-Hole Assembly Technology

Mixed Assembly Technology

Conventional Leaded Technology

Special Processes

Inspection Methords

Conformal coating

Prompt and Superior Service

Comprehensive documents audit to prevent mistakes in PCB Gerber and Bom.

Suggest best quality replacement with lower price.

Engineering support for test and provide suggestions for mass production 

Conventional Leaded Technology

Suggest best shipment method.

Sign NDA to keep your design safe.

Customized Fr4 PCB Assembly  FAQ

Q1: How do you make sure the quality of the PCBs?

A1: Our PCBs are all 100% test including Flying Probe Test, E-test or AOI.

Q2: What is the lead time?

A2: Sample needs 7-10 working days, mass production needs 10-20 working days.

       It depends on the files and quantity.

Q2: Can I get the best price?

A2: Yes. To help customers control cost is what we are always trying to do.

       Our engineers will provide the best design to save PCB material.

Q3:  What files should we offer?

A3:  If only need PCBs, the Gerber files are needed; If need PCBA, both Gerber files and BOM are needed.

Q4: Do you keep our information and files secret?

A4: Keeping secret for customers is the basic principle of our factory. We can sign with the NDA with you.

Q5: Can we visit your company?

A5: No problem. You are welcome to visit our company in Shenzhen.

Q6: Can I get a sample?

A6: Yes, It's reasonable to get a sample to test our quality at first.

       But you have pay for the samples, and we will return half of the cost when the order is more than 20 sqm.

PCB Assembly Process Overview

PCB (Printed Circuit Board) assembly systematically integrates electronic components onto circuit boards through these core stages:

Component Procurement:
Sourcing electronic parts from suppliers based on specifications, availability, and cost.

PCB Fabrication:
Manufacturing bare boards using etching/printing techniques to create copper traces and connection pads.

Component Placement:

Surface-Mount Devices (SMD): Automated pick-and-place systems position components onto solder pads with high speed/precision.

Through-Hole Technology (THT): Component leads are inserted into pre-drilled board holes (automated or manual).

Mixed-Technology Assembly: Many designs strategically incorporate both SMD and THT components.

Soldering:

Reflow Soldering: Primary method for SMDs. Solder paste melts in controlled ovens to form electrical/mechanical bonds.

Wave Soldering: Used for THT components. Boards pass over molten solder waves to create bottom-side connections.

Inspection & Testing:
Rigorous quality control via:

Automated Optical Inspection (AOI)

X-ray examination

Functional testing

Visual checks
(Detecting solder defects, missing/misaligned parts, functionality)

Final Integration:
Approved PCBs proceed to product integration (enclosures, connectors, cabling, mechanical parts).