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Void Free BGA PCB Assembly X Ray Testing OEM PCB Manufacturing

Precision BGA Assembly – Void-Free X-Ray Testing

Overview

Voids within BGA solder balls are a critical quality concern—excessive voids reduce mechanical strength, increase electrical resistance, and can cause premature field failures. Studio Electronics offers Precision BGA Assembly with void-free X-Ray testing, utilizing advanced 3D X-Ray systems to detect and quantify voids in every BGA solder ball. As a premier provider of PCB assembly in China, we combine process optimization, nitrogen reflow technology, and comprehensive X-Ray inspection to achieve void rates well below IPC requirements. Our complete turnkey service covers component procurement through final shipping.

Void Control – Our Precision Approach

Void Control Parameter	Studio's Capability	Target/Result
X-Ray Detection	3D X-Ray with automated void calculation	Voids detected to sub-5μm resolution
Void Percentage Target	<15% per ball (IPC Class 2/3)	Consistently achieved; <10% for critical applications
Process Optimization	Reflow profile; stencil design; nitrogen reflow	Minimizes void formation during soldering
Board Pre-Bake	Moisture removal before assembly	Prevents outgassing; reduces voiding
Flux Selection	Optimized flux for BGA applications	Improved wetting; reduced voiding
Documentation	X-Ray images and void data per board serial number	Complete traceability; audit-ready records

Our Precision BGA Assembly Process

Stage 1: Component Sourcing & Pre-Treatment
Components sourced through authorized distributors. For low volume PCB assembly, small-quantity procurement supported. Board pre-baking removes moisture, preventing void-causing outgassing.

Stage 2: Stencil Design & Solder Paste
Optimized stencil aperture geometry. 3D SPI verifies paste deposition consistency.

Stage 3: Precision BGA Placement
12 SMT lines with ±25μm accuracy. Vision alignment ensures accurate ball-to-pad registration.

Stage 4: Nitrogen Reflow
Nitrogen atmosphere reflow minimizes oxidation and reduces void formation. Custom profiles per BGA type.

Stage 5: 3D X-Ray Void Analysis (100% Coverage)

3D X-Ray – Every BGA inspected; automated void calculation per ball
Void Percentage – Calculated and reported per ball
Acceptance Criteria – <15% void per ball (Class 2/3); <10% for critical applications
Documentation – Void data per board serial number

Stage 6: Quality Testing & Final Assembly
ICT; Flying Probe; FCT; AOI for visible components. Careful handling; anti-static packaging; global logistics.

Why Void-Free X-Ray Testing Matters

Void Level	Mechanical Impact	Electrical Impact	Studio's Solution
<15% (IPC Class 2/3)	Acceptable for standard applications	Acceptable for standard applications	Studio's standard target; consistently achieved
<10%	Enhanced mechanical strength	Reduced resistance; improved performance	Studio's critical application target
>25%	Significant strength reduction	Increased resistance; overheating risk	Detected and flagged for rework

Studio delivers Precision BGA Assembly—void-free X-Ray testing ensuring every BGA solder joint meets quality standards.

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Categories	BGA Assembly
MOQ:	No MOQ
Supply Ability:	100,000 pieces per month
Packaging Details:	ESD Protective Packaging/Customization
Delivery Time:	5-25 working days(varies by product)
Place of Origin:	China
Price:	Quote based on your specs
Payment Terms:	T/T