Pads on a D coupon IPC D coupons can effectively identify defects such as premature failure, plating voids, thin copper, interplane separation, cracked barrels, blind via to pad separation, and lifted lands. These coupons are strategically positioned in all four corners and the center of the pa...
The advantages and disadvantages of electroless nickel immersion gold are listed in the chart below: Applications of ENIG ENIG is mainly used in SMT, lead-free soldering, and BGA packages. ENIG serves industries such as data/telecom, high-end consumer, aerospace, military, and high-performance de...