Technical Library | 2013-01-17 15:34:33.0
The use of an electroless nickel, immersion gold (ENIG) surface finish comes with the inherent potential risk of Black Pad failures that can cause fracture embrittlement at the interface between the solder and the metal pad. As yet, there is no conclusive agreed solution to effectively eliminate Black Pad failures. The case studies presented are intended to add to the understanding of the Black Pad failure mechanism and to identify both the plating and the subsequent assembly processes and conditions that can help to prevent the likelihood of Black Pad occurring.
Technical Library | 2019-04-17 21:29:14.0
Electroless nickel electroless palladium immersion gold (ENEPIG) surface finish for printed circuit board (PCB) has now become a key surface finish that is used for both tin-lead and lead-free solder assemblies. This paper presents the reliability of land grid array (LGA) component packages with 1156 pads assembled with tin-lead solder onto PCBs with an ENEPIG finish and then subjected to thermal cycling and then isothermal aging.
Technical Library | 2023-01-06 16:09:03.0
The 4-14 IPC Standards Committee recently created a revision to the IPC4552 specification for Electroless Nickel/Immersion Gold (ENIG) finished Printed Circuit Boards (PCB). Revision A brings a more comprehensive evaluation of metal layer thicknesses measurement, composition and introduces, for the first time, a quality aspect for nickel corrosion which has been historically connected to a defect called black line nickel or black pad.
New Equipment | Assembly Services
TW-FPC--Flexible PCB 0187 Price: Get Latest Price Minimum Order Quantity: 10 Unit/Units other Port: HK Packaging Details: blister and package Delivery Time: 1 week Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 5000000 Unit/Units p
New Equipment | Assembly Services
TW-Flex-Rigid PCB 0156 Price: Get Latest Price Minimum Order Quantity: 10 Unit/Units other Port: HK Packaging Details: blister and package Delivery Time: 1 week Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 5000000 Unit/Units per
New Equipment | Assembly Services
TW-HDI PCB 0245 Price: Get Latest Price Minimum Order Quantity: 10 Unit/Units other Port: HK Packaging Details: blister and package Delivery Time: 1 week Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 5000000 Unit/Units per Year o
sales5 at et limited(.)cn china aluminium pcb, pcb copper, pcb service, pcb printed circuit , pcb board key speciafications/special features: Base material: Aluminum pcb board
sales5_at_etlimited_cn PCB assembly service, PCB assemblies,PCBA Contract, Printed circuit boards assembly. China 8 layers PCB&PCBA supplier and exporter,8 layers PCBA with SMT,BGA and electronical components. This PCBA's key s
sales5_at_etlimited_cn Halogen free PCB,PCB boards, PCB prototype, pcb solder mask,FREE PCB Key speciafications/special features: 8 layers PCB Base material: Ceramics, Aluminum, Rogers, high Tg, F4B, F4B
sales5_etlimited_cn china ceramic pcb,china ceramic pcb single layer key speciafications/special features: Base material: Ceramics, Aluminum, Rogers, high Tg, F4B, F4BK, F4BT, TP, PF, FR4, FR1, FR2, CEM-1, CEM-3, etc. pcb Board thickness: 0.30 to
