F-R8477900 UV STENCIL GREEN OIL UV STENCIL FILM

F-R8477900 UV STENCIL GREEN OIL UV STENCIL FIL 

F-R8A77900_Flim Reballing Stencil

• Product Name: F-R8A77900_Flim Reballing Stencil
• Primary Function: This is a highly specialized reballing stencil used for re-establishing the solder connections on the Renesas R8A77900 automotive processor. The “Flim” in its name suggests it may be a very thin, flexible, or a specific type of foil-based stencil, designed for ultra-high precision on this delicate chip.
• Compatibility:
  • Chip: Renesas R8A77900, a BGA-packaged microprocessor.
  • Application: This processor is a crucial component in the infotainment systems of various vehicles, including certain models from manufacturers like Audi.
• Key Features:
  • Ultra-Precision: The stencil is designed with a very fine hole pattern that perfectly matches the BGA layout of the R8A77900 chip. This precision is essential to ensure that each microscopic solder ball is placed correctly, preventing shorts or a failed reflow.
  • Optimized for Automotive Repair: This tool addresses a common failure point in car electronics, where the processor’s solder joints can crack or fail due to constant vibration and thermal cycling.
  • Ease of Use: For a trained technician, using this dedicated stencil simplifies the complex process of reballing the chip. The stencil guides the application of solder paste, ensuring the repair is accurate and reliable.

The Role in Automotive Repair

The existence of a dedicated reballing stencil for this chip highlights a specific repair need in the automotive industry. When a car’s infotainment system fails—often resulting in a blank screen or a system that won’t boot—the root cause can be a faulty connection at the processor level. Replacing the entire head unit is a very expensive repair. Using a specialized tool like the F-R8A77900_Flim reballing stencil, a skilled technician can perform a component-level repair, saving significant costs and preserving the original hardware.

• Net Quantity: 1

FEATURES:

SOLDER MASK REPAIR GREEN OIL UV STENCIL

EACH STENCIL IS PROOFREAD ACCORDING TO THE ORIGINAL FACTORY DRAWINGS TO

ENSURE THAT EVERY SOLDER JOINT MUST NOT BE MISSING, COMPLETELY CONSISTENT WITH PRECISE ALIGNMENT

HIGH PRECISION, NO BURRS, SO THAT EACH OF YOUR MESH HOLES CAN BE OF THE SAME SIZE AND NOT STUCK TIN BALLS

HOW TO USE:

AFTER CLEANING THE MOTHERBOARD OR CHIP PART, DRY IT WITH AN AIR GUN TO KEEP IT DRY

USE A BLADE TO APPLY AN APPROPRIATE AMOUNT OF CURING GREEN OIL PARALLEL TO THE CHIP OR MOTHERBOARD THAT NEEDS TO BE REPAIRED

PAY ATTENTION TO APPLYING THE GREEN OIL AS EVENLY AS POSSIBLE, THE THINNER THE COATING, THE BETTER, TRY NOT TO HAVE AIR BUBBLES WHEN LAMINATING

THEN PUT THE GREEN OIL STENCIL (THE PRINTED SIDE) DOWN AGAINST THE PADS, AND THE PADS ON THE GREEN OIL NET ARE ALIGNED WITH THE PADS ON THE CHIP OR THE MOTHERBOARD.

ACCORDING TO THE THICKNESS OF THE APPLIED GREEN OIL, IT IS CURED BY THE PURPLE LIGHT EMITTED BY THE PURPLE LIGHT LAMP FOR 6-15 SECONDS

CLEAN THE PAD PART WITH PCB WATER OR ALCOHOL, AND THEN CONTINUE TO USE THE CURING LAMP TO CURE IT FIRMLY, THAT IS, COMPLETE THE QUICK REPAIR OF THE CHIP OR MOTHERBOARD PAINT DROP