In the realm of flexible printed circuit assembly (FPCA) and printed circuit board assembly (PCBA), X-ray inspection plays a crucial role in ensuring product quality and meeting stringent requirements. This is particularly vital when incorporating surface mount components such as ball grid array (BGA), land grid array (LPA), chip scale package (CSP), and MEMS devices like microphones for the mobile market. Recognizing this, Pica Manufacturing Solutions (PMS) has strategically upgraded its X-ray inspection capabilities, particularly at its Malaysian division, PMS Malaysia (PMSM).
The challenge in manufacturing products using BGA, LGA, CSP, and MEMS devices lies in the hidden solder pads located on the package substrate. Traditional inspection methods like optical, ultrasonic, and thermal imaging often miss these hidden solder joints, leading to potential quality issues. The X-ray inspection system, therefore, becomes essential in PCBA/FPCA processes for its ability to conduct non-destructive testing of internal PCB/FPC structures. It excels in identifying solderability issues such as voids and solder bridge detection.
Essential features of the X-ray inspection system include:
- Void automatic measurement and analysis.- Geometrical measurements including distance, length, angle, and through-hole measurements.
- Wire length measurement.
- 3D CT scanning.
- Automated inspection routines for repeated inspection of the same products.