Advanced Process Matrix > SMT Assembly

Precision Assembly's
Ultimate Stability

The most widely used core process in electronics assembly. Integrating Alpha's high-performance material systems, we help achieve extremely low void rates and outstanding production line throughput.

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SMT Process

Full Process Solution Overview

When handling complex PCB assembly, the stability of solder materials directly determines product lifecycle quality. Advanced solder paste, precision preforms, and SMT adhesive provided by Alpha are specifically designed to improve first-pass yield and reduce rework costs.

Flagship Product Support System

  • ◈ Alpha Advanced Solder Paste: Precisely controlled rheology ensuring ultimate printing consistency.
  • ◈ Preforms (Solder Preforms): Meeting local tin compensation needs, significantly suppressing post-solder voids.
  • ◈ High-Efficiency Stencil Technology: Optimized aperture wall geometry for perfect solder paste release.
  • ◈ SMT High-Temperature Adhesive: Excellent thermal stability for the demanding challenges of double-sided reflow processes.

Flagship Solder Paste Selection Matrix

Professional matching recommendations for different alloy requirements and reliability targets:

Core Model Lead-Free Low Temperature High Reliability (HR) Low/Zero Silver Water-Soluble
CVP-390✓-✓✓-
CVP-520✓✓---
OM-338 L2✓----
HF-200✓-✓--
WS-809✓---✓

Manufacturing Efficiency Optimization

Significantly suppressing common SMT defects such as tombstoning, cold joints, and bridging. For BGA and 01005 micro-components, providing ultimate uniform wetting capability and stress buffer layers.

Industry Standard Anchoring

Fully compliant with RoHS and halogen-free standards. Our technical team deeply participates in IPC international standards formulation, ensuring every production line operates at the industry's leading compliance level.

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Technical FAQ

Q: Which Alpha solder paste is best for fine pitch components?

A: We recommend the Alpha OM-338 series, featuring superior release performance and low voiding, ideal for high-density SMT assembly.

Q: How can BGA voiding issues be resolved in reflow?

A: Using Alpha's unique low-voiding solder paste systems along with optimized reflow profiles can significantly reduce voiding.