

BGA rework fixture is an auxiliary tool used in the rework process of BGA (Ball Grid Array) packaged chips, primarily for precise positioning, securing, and protecting BGA chips to enhance rework success rates and minimize damage to surrounding components and circuit boards.
Here is a detailed introduction:
Structure and Features
• Precise Positioning: By aligning with specific holes or outline contours on the circuit board, it accurately places the BGA chip in the correct position, ensuring the chip's pins align perfectly with the board's pads.
• Secure Fixation: Utilizes various securing methods, such as clamps and pressure blocks, to firmly hold the BGA chip and circuit board in place, preventing movement during rework and ensuring welding quality.
• High Temperature Resistance: Made from high-temperature resistant materials like ceramic or special plastics, the fixture withstands the high temperatures of soldering without deforming, maintaining its precision and performance.
• Good Compatibility: Some BGA rework fixtures are designed with adjustable or modular structures, allowing different positioning modules or adjustable clamp sizes to accommodate various BGA chip sizes and package forms, offering high versatility.
Functions
• Assists in Soldering: During the desoldering and soldering of BGA chips, the fixture ensures the relative position between the chip and the circuit board remains unchanged, allowing solder to melt and solidify evenly, forming good solder joints and reducing issues like cold solder joints and short circuits.
• Protects Surrounding Components: During rework, the fixture can shield or isolate surrounding components, preventing them from being affected by high-temperature airflows or soldering iron tips, thus avoiding damage or performance degradation due to overheating.
• Enhances Work Efficiency: Using the fixture makes rework operations more standardized and convenient, reducing the time needed for manual alignment and securing of chips, thereby improving rework efficiency and lowering the skill requirements for operators.
The BGA rework fixture is an indispensable tool in the electronics manufacturing and repair field, playing a crucial role in enhancing the quality and efficiency of BGA chip rework.