Amaoe U-G2 BGA Reballing Stencil-Original For Google Tensor G2
| Specification Category | Detail |
|---|---|
| Product Name | Amaoe U-G2 BGA Reballing Stencil — Original |
| Common Model Name / SKU | U-G2 / U-Tensor |
| Compatible Chipset(s) | Google Tensor G2 SoC (also backward compatible with Tensor G1) — used on Pixel 7 / 7 Pro series and similar devices. |
| Stencil Type | BGA (Ball Grid Array) Reballing Stencil |
| Primary Use | CPU/SoC BGA chip reballing and solder ball application for board repair |
| Material | Premium stainless-steel sheet (laser or chemical etched for high precision) |
| Thickness | ~0.12 mm (standard thickness for accurate ball placement on CPU BGA) |
| Hole / Aperture Type | Square / precision apertures matching the Tensor G2 BGA pad geometry |
| Feature Precision | High-accuracy aperture placement to align with specific chip pad positions |
| Fit / Tolerance | Designed to very tight manufacturing tolerances to ensure accurate ball deposition |
| Surface Finish | Smooth, anti-glare finish to aid flux/ball placement |
| Reusability | Multi-cycle usable with correct handling (clean after each reuse) |
| Included Components (Full Set) | 1 × Stencil, 1 × Positioning Plate, 1 × Magnet Base, 2 × Blade (alignment/placement tools) |
| Weight (Approx.) | ~0.45 kg for full stencil set with accessories |
| Packaging | Protective anti-static cardboard box / blister pack (varies by retailer) |
| Manufacturing Compliance | RoHS-compliant metal (lead-free etching) |
| Reflow / Operating Conditions | Works within solder alloy reflow profiles (depends on paste type) |
| Recommended Solder Alloy | SAC305 / other Pb-free solder paste (check repair standard) |
| Flux Compatibility | No-clean or water-soluble solder flux (use appropriate cleaning after reflow) |
| Cleaning Method | IPA (isopropyl alcohol), soft brush, or dedicated stencil cleaner |
| Storage Conditions | Flat, dry environment (avoid humidity, bending, or surface wear) |
| Handling Notes | Avoid finger contact with apertures; use gloves/tweezers |
| Warranty | Manufacturer dependent (often 1 year or seller warranty) |
| Country of Origin | China (manufactured to Amaoe specification) |
| Certifications | Lead-free etching, precision quality control |
🔍 Detailed Breakdown
📌 1. Compatibility & Purpose
The Amaoe U-G2 BGA Reballing Stencil is precisely engineered for the Google Tensor G2 SoC, the high-performance mobile processor used in flagship Pixel models. It aligns exactly with the BGA pad matrix of this chip for accurate solder ball placement — critical for successful CPU reball operations that restore or replace the solder connections.
🧰 2. Material & Precision
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Stainless Steel Construction: Offers a balance of strength and flexibility while resisting corrosion.
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0.12 mm Thickness: Ideal for BGA reballing — thick enough for rigid handling, yet thin enough for precise ball placement.
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Laser / Etched Apertures: Ensures consistent dimension control so that solder balls sit properly without bridging or misalignment.
⚙️ 3. Components Included
When bought as a full set, the product usually includes:
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Stencil Plate: The main metal template with precision apertures.
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Positioning Plate: Helps align the stencil exactly over the chip or socket.
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Magnet Base: Holds the stencil and device in place while you work.
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Blades / Tools: For scraping off excess solder or applying balls evenly.
Some sellers also allow purchasing individual parts separately (e.g., stencil only, magnet base only), depending on repair needs.
🔧 4. Usage Recommendations
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Match Solder Ball Size: Use solder balls that match the pad pitch (consult the specific BGA layout for Google Tensor G2).
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Flat Alignment: Ensure the stencil sits perfectly flat using the positioning plate for uniform solder application.
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Avoid Warping: Handle carefully; bending the stencil will compromise alignment accuracy.
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Clean After Use: Residual flux and solder can block apertures — gently clean with IPA to maintain precision.
🧠 5. Handling & Maintenance
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Wear gloves while handling the stencil to avoid fats or dirt affecting solder adhesion.
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Store flat to avoid warping or edge damage.
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Use fine brushes or stencil cleaners if heavy residues build up after multiple uses.
🧾 6. Additional Notes
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Some sellers describe this stencil as a “magnetic planting tin platform set” — this refers to the combined jig and magnetic base system that secures both the stencil and the board during work.
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A 1-year warranty is sometimes offered depending on seller/manufacturer policy.
🛠 Practical Uses
Technicians typically use this stencil when:
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Reballing a failed or cracked BGA pad array on the Tensor G2 CPU.
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Repairing hotspots or cold joints after reflow.
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Reworking phones where CPU sockets appear damaged, requiring new balls before reflow soldering.
