Quality Control
We have no compromise on quality. Geyuan Electronics’ quality control ecosystem has improved the quality outcomes of the rapidly growing NPI team, thus breaking through innovation bottlenecks.
Ultimate Quality Control
Geyuan Electronics is your trusted partner for PCB, PCBA, CNC machining, injection molding, mold making, sheet metal fabrication, die casting, metal injection molding, and 3D printing! Beyond friendly service and on-time delivery, we focus on producing high-quality products that meet and exceed customer expectations.
Manufacturing Standards
Our technicians have years of experience and consistently work according to high standards and requirements.
Quality Control Processes
We believe that only a comprehensive quality control process can effectively ensure quality.
Quality Reports and Certifications
We can provide you with complete quality reports and common certifications to prove the quality of our products.
Raw Material Downloads
You can download the specifications of the raw materials we use in production.
Manufacturing Standards
Our experienced technicians will always ensure that all products are of exceptional quality, reliability and consistency.
PCB Production standards follow IPC Class 2,IPC Class 3, ,Automotive Standard, Customer Standard.
| Item | Advanced PCB | Standard PCB |
|---|---|---|
| Engineering | one file/1 days+ Senior engineer | mid-level engineer (1 files/hours) |
| Material | Shengyi,Rogers,Arlon,Isola, Omega,Nelco,3M etc.Meet IPC4101 class B/L | KB(kingboard)/GDM(goldenmax) Meet IPC4101 class B/L |
| Ink,Soldermasks | Rohm&Haas,TAIYO,Kuangshun,Meet IPC-SM-840 class T | TAIYO,Kuangshun,Meet IPC-SM-840 class T |
| Drilling | Min Mechanical Hole Size 0.15mm,Laser hole 0.1mm | Min Mechanical Hole Size 0.2mm |
| Plating | PTH (Hole copper thickness≥20um),IPC 3(25um) | PTH（Hole copper thickness≥18um） |
| Soldermask offset | ±2mil | ±3mil |
| Dimensional deviation | ±0.13mm | ±0.2mm |
| Warping angle | 0.75% | 1% |
| Test method | A.O.I,Kelvin Four-terminal sensing,Microsection Inspection,Solderability Test,Impedance Test… | A.O.I.,Fly Probe Testing, E-test fixture |
| Glass transition ℃ | >140℃ | >130℃ |
| Etched line | Forbid to repair tracks(IPC 3,Automotive,Customer Standard) | – |
| Cleanliness | Cleanliness requirements beyond those of IPC | Cleanliness requirements beyond those of IPC |
PCB Assembly standards follow IPC-A-610E Standard.
| PCB Assembly Parameters | Bulk Order Supported Capabilities | Sample Order Supported Capabilities |
|---|---|---|
| PCB size | L50xW50mm~L510xW460mm | Unlimited |
| PCB thickness | T=0.4~4.0mm | Unlimited |
| Min SMD size | 01005（inch） | 01005（inch） |
| Max SMD size | 45x45mm（Connector length:150mm) | Unlimited |
| Min IC Pin Pitch | 0.3mm | 0.3mm |
| Min BGA Ball Pitch | 0.4mm | 0.4mm |
| Equipment placement accuracy | ±0.35mm @3σ | ±0.35mm @3σ |
| SMD production capacity | 1000K points/day | 200 Orders/day |
| DIP production capacity | 500K points/day | 200 Orders/day |
Tolerances will be controlled into +/-0.2 mm(+/-0.01″) in accordance with ISO 2768. For other tighter tolerances, technical drawing will be required to indicate critical dimensions.
| Limits for nominal size | Plastics Coarse class (c) | Metals Medium class (m) |
|---|---|---|
| 0.5mm* to 3mm | ±0.2mm | ±0.1mm |
| 3mm to 6mm | ±0.3mm | ±0.1mm |
| 6mm to 30mm | ±0.5mm | ±0.2mm |
| 30mm to 120mm | ±0.8mm | ±0.3mm |
| 120mm to 400mm | ±1.2mm | ±0.5mm |
| 400mm to 1000mm | ±2.0mm | ±0.8mm |
| 1000mm to 2000mm | ±3.0mm | ±1.2mm |
| 2000mm to 4000mm | ±4.0mm | ±2.0mm |
| Process | Tolerance |
|---|---|
| SLA | L<100mm,±0.2mm. l>100mm,±0.2%*L(mm) |
| DLP | L<100mm,±0.1mm. l>100mm,±0.1%*L(mm) |
| SLS | L<100mm,±0.25mm. 100< L<200mm,±0.3mm 200< L<500mm,±0.5mm. L>500mm,±0.1%*L(mm) |
| MJF | L<100mm,±0.25mm. l>100mm,±0.25%*L(mm) |
| SLM | L<100mm,±0.3mm. l>100mm,±0.3%*L(mm) |
| FDM | L<100mm,±0.2mm. l>100mm,±0.2%*L(mm) |
Geyuan Electronics Quality Control Process
The perfect quality assurance system and various testing equipment help us monitor the entire production process to ensure the stability of the process and product quality. At the same time, we also introduce advanced instruments and technical methods to achieve continuous improvement.
PCB Files Checking Before Production
For each order submitted, Gerber files will be reviewed by our professional engineers before being sent to production. Engineers will confirm the production feasibility in terms of tolerance constraints such as board edge clearance, drilling, pad spacing, impedance and routing. When the engineer finds a problem with the file or there is something that can be optimized, an EQ will be raised, and our customer service representative will get in touch with you, so as not to delay production.
Raw Material Guarantee
The quality of the raw materials determines durability of the finished products. Ensuring the high quality of raw materials is one of the most basic principles for Geyuan Electronics to manufacture products. Geyuan Electronics has been working with leading suppliers in the industry,and inspect materials according to international standards and customer requirements, such as Shengyi, Rogers, KB (kingboard) sheet, Rohm&Haas, TAIYO high-performance solder mask ink.
The World's Leading Production Equipment
In order to ensure the best quality and reliability of PCB products, PCBWay continuously introduces advanced equipment, including but not limited to the following:
- LDI exposure machine
- Automatic solder mask production line
- Fully automatic PCB testing machine
- Fully automatic PCB etching equipment
- Automatic silkscreen printing production line
- Fully automatic electroplating line
Quality Inspection Before Shipment
We strictly comply with ISO9001:2015 requirements and all production processes are in line with IPC standards. In addition to basic visual inspections, all boards undergo the most rigorous electrical tests. We use industry-renowned testing and inspection equipment such as Flying Probe Testing, AOI (Automated Optical Inspection) and Copper Thickness Tester.
We guarantee that every PCB in your hand is in good condition and you can proceed to the next step of assembly safely. Various types of test reports are available upon request.
Strict Management
Our quality control systems are regularly audited and assessed to ensure their compliance and effectiveness. A complete quality control system and 100% PCB testing procedures will ensure that every order you entrust is completed perfectly.
Geyuan Electronics boasts dozens of SMT production lines. Advanced production equipment, rigorous quality control, and an intelligent service system ensure standardization and optimal quality at every stage of production. Our in-house manufacturing facility features an intelligent management system and advanced production and testing equipment.
Quality Checking Process And Description
01-Process review
Assess and inspect the particularity of the PCBA manufacturing process in advance, guide the production, and improve the quality from the process technology.
02-IQC Incoming Quality Control
- Check whether the resistance and capacitance values are correct
- Check whether the pads on the components and the board are consistent
- Confirm whether the incoming quantity is accurate
- Check whether the components are abnormal
03-SPI Solder Paste Inspection
SPI can detect whether the solder paste is sufficient and uniform, which can effectively prevent production quality problems in advance caused by poor solder paste printing.
04-Online AOI Inspection
The AOI can detect the wrong solder, reverse solder, false solder, empty solder, incomplete solder, short circuit, offset, tombstone, etc. after reflow soldering. And it can also detect excessive solder, less solder, continuous solder and other undesirable phenomena in the appearance of PCBA solder joints.
05-First sample test
Combined with Gerber, BOM and coordinate files, the resistance and capacitance in the completed PCBA are verified again by the first-sample tester to ensure the correctness of all parameter values.
06-Off-line AOI inspection
According to the IPC610D standard, inspect the soldered surface mount PCBA for errors, omissions, and false connections.
07-X-Ray welding inspection
Inspect the solder joints of invisible components to ensure the reliability of each solder ball of the BGA.
08-QC manual inspection
Refers to the standard IPC–610 inspection standard, and the finished board is visually inspected to ensure 100 % Good products shipped.
1-Lamination
After lamination, there will be slicing test (to confirm the thickness of the dielectric), thermal shock test (to confirm whether it is delaminated), and also copper foil adhesion test.
2-Drilling
We will control the service life of the drill tips. The drill tips are coated, which can prolong the service life and reduce the hole diameter. After drilling, there is a test for roughness of hole side, and drilling machine inspection to check the hole position, aperture, whether there is missing hole or plug hole, etc.
3-Copper Plating
Backlight test is performed after plating process to check the thickness for plated copper.
4-Electroplating
CMI700 will be used to check the surface copper and hole wall copper. We normally use a small current for electroplating to ensure the even copper thickness.
5-Developing and Etching
In this process, the engineer will check the width and spacing of the circuits for the first piece, and later perform another random check. There is a checking station for the developing process to ensure the good quality.
6-AOI
AOI is performed after pattern plating. It is an automated optical inspection of PCBs in which a camera is used to scan the circuit board in extremely fine detail to check for any defects or malfunctions.
7-Soldermask and Silkscreen
We use LDI,automatic alignment exposure machine, to finish high quality soldermask process. Solder mask and silkscreen have to also go through QC semi-inspection, and there is also QA inspection (spot check) to check whether the solder mask is not fully developed, whether the solder mask enters the hole, whether the silkscreen printing is.
8-Electrical test
Flying probe test and fixture test are typically performed at this stage.
9-Routing
Now the boards will go through the routing process twice, and the second time is the fine routing.
10-V-CUT
First sample inspection is needed after going through V-cut process.
11-FQC
After the FQC inspection, there are also FQA random inspections, solder mask 3M adhesion tests, slicing test, and solderability test.
12-Physical Lab
The role of the physical laboratory is to use some devices to make quality tests on the boards of related processes. Commonly used tests include: metallographic microscope, X-ray inspection of inner layer, X-ray test of gold thickness, impedance tester, peel strength tester, coil resistance test, quadratic element, copper thickness
13-Chemistry Lab
The chemical laboratory generally checks the correct ratio of chemical ingredients to ensure the quality of the boards. Usually, some processes that need to use potions are inspected, including: copper plating, electroplating, solder mask, etching, developing, lamination of brown lines, surface treatment, etc.
1. Pre-production Document Check
Before the production, our engineering team conducts a technical evaluation of your part design. This includes an assessment of important factors such as 3D and 2D drawings, material, surface finish, structure, workmanship and etc. When the engineer finds that there is a problem with the file or there is something that can be optimized, communicate with the customer in time to eliminate the problem before processing.
2. Raw Material Guarantee
Geyuan Electronics strictly controls material and surface treatment suppliers, using high-quality materials to produce parts. Upon customer request, we provide certification of the materials used to manufacture your parts. Reports come from raw material manufacturers and usually include: material model number, material grades, material dimensions, mechanical properties, chemical analysis, etc.
3. The World's Leading Production Equipment
To guarantee our strict quality control, we have the highest specification production workshop and the most advanced equipment, including but not limited to the following:
- Mazak 3-axis,4-axis,5-axis CNC Machining Center
- Mazak Turn-milling Complex Machine
- Sodick EDM Equipment
- Amada Pega NCT Punch Machine
- Mitsubishi Laser Cutting Machine
- Amada Press Brake Machine
4. In-process Quality Control
We strictly comply with ISO9001:2015 requirements. The parts will be processed in strict accordance with the established technological process. After the FAI report is passed, the mass production can be carried out. There is IPQC in the production process to ensure that every process is correct.
5. Quality Inspection Before Shipment
We have a dedicated QC team that 100% inspects finished parts before delivery, ensuring the parts we manufacture are of the highest quality. For all orders, we provide inspection reports upon request. The report will include the following: Number of parts, critical dimensions, threads and tolerances, thickness and depth, part appearance, and more.
6. Strict Management
Our quality control systems are regularly audited and assessed to ensure their compliance and effectiveness. A complete quality control system and the most stringent testing methods will ensure that we provide you with quality parts that meet your requirements.
Tensile Tester
It is used to find out how strong a material is and also how much it can be stretched before it breaks.
Zeiss Coordinate Measuring Machine
CMM refers to an instrument that can calculate various geometric shapes, dimensions and other measurement capabilities through the three-coordinate software system according to the point data returned by the probe system within the three-dimensional measurable space.
Mitutoyo Profile Projecto
Profile projector is an instrument that uses the optical principle to enlarge the contour or surface shape of the workpiece by an objective lens and a reflector, and then project it onto a projection screen, and use a counter or various standard pictures to inspect and measure the length, angle, shape, surface, etc.
Easson 2.5-Dimensional Image Measuring Instrument
2.5-dimensional image measuring instrument is a measuring instrument composed of mechanical main body, ruler system, image detection system, drive control system and measurement software.
3D Scanners
3D scanner is a scientific instrument used to detect and analyze the shape (geometric structure) and appearance data (such as color, surface albedo, etc.) of objects or environments in the real world.
XRF Material Verification Gun
XRF material verification gun is a fast, non-destructive method for measuring substances.
Quality Reports
To ensure that all orders are completed in accordance with the Geyuan Electronics Manufacturing Standards.
We can provide a complete quality inspection reports according to your requirements, including but not limited to:
This document certifies that the order has been delivered with the required order specifications. PCBWay will do the dimension and surface feature inspections based on the drawings provided by the customer. Test PCB for open circuit or short circuit.
Availability:
pcb,pcb assembly,CNC machining,3D printing,EMS,OEM etc.
Free of charge
This document certifies that the material of a product manufactured does not contain more than 0.1% of the hazardous substances listed in the European reach regulation (SVHC).
Availability:
pcb,pcb assembly,CNC machining,3D printing,EMS,OEM etc.
Additional cost
Provides dimensional reports to verify critical dimensions of product parts, and allowable range tolerance data for comparison.
Availability:
CNC machining,Injection molding,PCB
Free of charge
Regular shipment report additionally includes test report, dimensional inspection report
Availability:
Advanced PCB,PCB
Free of charge
The purpose and requirements of thermal stress test PCB is used as the carrier of components, and its reliability has an important impact on the overall performance of electronic products.
Availability:
PCB
Free of charge
Provides dimensional reports to verify critical dimensions of product parts, and allowable range tolerance data for comparison.
Availability:
CNC machining,Injection molding,PCB
Free of charge
Micro-sections made by micro-sectioning technology of printed circuit boards can be used to inspect the thickness of wires inside the PCB, the number of layers, the size of through-holes, and the quality of through-holes. Wet quality evaluation, etc.
Availability:
PCB
Free of charge
PCB Impedance Test
Availability:
PCB
Free of charge
Geyuan Electronics offers inspection with coordinate measuring machine (CMM) or laser scanners for an unlimited number of features.
Availability:
CNC
Additional cost
Quality Certifications
Geyuan Electronics’s quality management system is to ensure with efficient printed circuit boards which meet customer’s requirements. Our partners manufacture in compliance with, among others, the following standards:
- IATF 16949
- ISO 9001:2015
- ISO 13485:2016
- REACH
- CE
- RoHS
- UL
Thanks to the materials used and advanced technology, we always ensure highest quality of our printed circuit boards!
Geyuan Electronics can provide customers with certifications in various markets, such as: EU RoHS certification, EU CE certification, US UL certification, US FCC certification, Australia SAA certification, Australia C-tick certification, Australia RCM certification, Japan PSE certification, Brazil INMETRO certification, Mexico NOM certification, Canadian IC certification, Korea lithium battery KC certification, Argentina IRAM S-mark certification, DLC certification, GS certification, CB certification, etc.
Resolving Quality Issues
If your order does not meet specifications, you will enjoy our rework or refund policy.
You can issue any complaint within 5 working days after receiving the products. Our after-sales service team will resolve these issues as soon as possible, usually within 1-3 working days. We promise that if quality problems are caused by fabrication, Geyuan Electronics will be responsible for free maintenance or rework, and bear the return shipping costs.
- Unacceptable processing defects
- Fail to meet tolerance requirement
- Incorrect material / finish
- The part is not machinable
- Product not available
- Other reasons
Develop Superior Products With Our Professional Team
Our team has perfected various quality testing standards to better complete your projects. Please contact us, share your goals, and let's work together to create exceptional products.
