Amaoe U-QSD4 BGA Rebaling Stencil For MSM8953/ 8937/ 8940/ 8917 SDM632/ 450 CPU RAM

Amaoe U-QSD4 BGA Rebaling Stencil For MSM8953/ 8937/ 8940/ 8917 SDM632/ 450 CPU RAM

The Amaoe U-QSD4 is a high-precision BGA reballing stencil specifically engineered for technicians working on Qualcomm Snapdragon chipsets. It is a “comprehensive” or multi-purpose stencil, meaning it contains precisely cut patterns for the CPU, RAM, and several auxiliary ICs (power, radio frequency, and Wi-Fi) all on a single plate.

Amaoe U-QSD4 Technical Specifications

Feature	Specification
Model Number	U-QSD4
Brand	Amaoe (Meticulous Series)
Material	High-Quality Stainless Steel (Imported)
Stencil Thickness	0.12mm (Standard for precision reballing)
Manufacturing Process	Laser-cut with Square-hole technology (prevents solder ball sticking)
Heat Resistance	Up to 500°C (Anti-warping design)
Application	BGA Reballing / Tin Planting for Qualcomm ICs
Hole Design	Chamfered/Trapezoidal holes for easier mold release

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Compatibility & Supported Components

The U-QSD4 is one of the most popular stencils for mid-range Android repair because it covers a massive range of common Qualcomm processors and their associated components:

1. Supported Processors (CPUs)

• Snapdragon 625 (MSM8953)

• Snapdragon 430 / 435 (MSM8937 / MSM8940)

• Snapdragon 425 (MSM8917)

• Snapdragon 632 (SDM632)

• Snapdragon 450 (SDM450)

2. Power & Auxiliary ICs

The stencil includes dedicated patterns for:

• Power Management (PMIC): PM8937, PM8940, PMI8940, PMI8942, PM8953, PMI632.

• RF / Baseband: WTR2965, 56020, RF5428, RF5212A.

• Connectivity: WCN3615 (Wi-Fi/BT).

• BGA Packages: BGA178, BGA221, BGA153 (eMMC/UFS patterns common to these boards).

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Key Features for Professionals

• Anti-Drum Design: The stencil features specialized “heat dissipation holes” or expansion slots. These prevent the steel from “doming” or bulging when you apply direct heat with a hot air station.

• Alignment Accuracy: The laser-etched markings match the IC corners perfectly, reducing the time spent aligning the chip under the mesh.

• Solder Paste Compatibility: Optimized for 183°C (leaded) and 138°C (low-melt) solder pastes.