Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
Precision and Reliability
The Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20 is engineered to provide unmatched accuracy for Samsung S20. Built with high-quality materials, this original stencil ensures precise alignment and a seamless reballing experience. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
User-Friendly Design
Perfect for professional technicians and DIY enthusiasts, this stencil prioritizes ease of use. The dedicated middle-layer design simplifies complex repairs, enabling quicker and more effective reballing for optimal performance of your device. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
Original Quality Assurance
Designed specifically for Samsung S20 models, this Amaoe stencil guarantees compatibility and durability. Its original design ensures long-lasting usability, making it an essential addition to your repair toolkit. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
The Amaoe G988U Middle Layer BGA Reballing Stencil is a professional-grade precision tool engineered specifically for the repair and maintenance of the Samsung Galaxy S20 series (specifically the G988U variant). In the world of high-end smartphone repair, the “middle layer” refers to the interposer or the sandwiched PCB structure found in modern devices. This stencil is vital for “reballing”—the process of replacing the tiny solder balls on a BGA (Ball Grid Array) chip to ensure a perfect electrical connection after a chip has been desoldered. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
Below are the detailed technical specifications and features for the original Amaoe G988U stencil.
Technical Specifications
| Feature | Specification Details |
| Brand | Amaoe (Authentic/Original) |
| Model Number | G988U / SAM:12 |
| Compatibility | Samsung Galaxy S20 Ultra (G988U), S20 Series |
| Supported CPUs | Snapdragon 865 (SM8250), Exynos 990 |
| Thickness | $0.12\text{ mm}$ (Ultra-thin precision) |
| Material | High-grade Heat-Resistant Stainless Steel |
| Application | Middle Layer Motherboard Reballing / Tin Planting |
| Hole Design | Square/Round CNC Laser-Cut Apertures |
| IC Support | PM8150C, PMX55, SDR865, MAX77705F, S5311 |
| Weight | Approx. $10\text{g}$ |
| Color | Silver / Metallic Grey |
Core Features and Design
The Amaoe G988U stencil is distinguished by its 0.12mm thickness. This specific gauge is considered the “sweet spot” for mobile technicians: it is thin enough to allow for precise solder paste deposition but thick enough to resist warping under the high temperatures of a hot air rework station. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
1. Anti-Drum/Anti-Warp Technology
The stencil is manufactured using high-quality steel that undergoes a specific tempering process. This ensures that when heat is applied during the soldering process, the stencil remains flat against the PCB. Cheap stencils often “drum” or bow upward when heated, causing solder bridges or uneven balls; the Amaoe original is designed to minimize this physical distortion. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
2. Precision Laser-Cut Apertures
The holes (apertures) are cut using high-precision CNC lasers. These holes are slightly tapered, making it easier for the solder paste to release from the stencil once the “tin planting” is complete. This reduces the risk of pulling the paste back up, which often results in missing solder balls. Amaoe G988U Middle Layer BGA Reballing Stencil-Original For Samsung S20
3. Comprehensive IC Coverage
While labeled for the G988U middle layer, the SAM:12/G988U stencil often includes cutouts for the supporting chipset found on the S20 motherboard, including:
-
Power Management ICs (PMIC): PM8150C and PM8250.
-
RF/Modem Chips: SDR865 and PMX55.
-
Charging ICs: MAX77705F.
Usage Guidelines for Professionals
To achieve the best results with the Amaoe G988U stencil, technicians typically follow a structured workflow:
-
Cleaning: Before use, the chip and the stencil must be cleaned with 99% Isopropyl Alcohol (IPA) to remove any residual flux or old solder.
-
Alignment: The stencil features etched markings that align with the pads on the Samsung S20 middle board. Precise alignment is critical to prevent bridging.
-
Paste Application: Use a high-quality solder paste (typically $183^\circ\text{C}$ leaded or $217^\circ\text{C}$ lead-free). Apply the paste evenly across the apertures using a spatula.
-
Heating: Use a hot air station set between $280^\circ\text{C}$ and $320^\circ\text{C}$ (depending on your equipment and paste type) with low airflow to avoid blowing the stencil out of alignment.
Note: This is a professional tool. Improper use, such as applying excessive heat or using poor-quality solder paste, can damage the motherboard or the stencil itself.
Why “Middle Layer” Matters
In the Samsung S20, the motherboard is split into two layers (Top and Bottom) connected by a middle frame. If the phone suffers from a “no power” issue or “no signal” after a drop, the connection between these layers often breaks. The G988U stencil is specifically designed to re-solder these two halves together, a process known as “sandwiching.”
More Products :; https://gaffarmarketdelhi.com
