It’s extremely crucial that the solder joint maintain the eutectic composition of 80Au20Sn to benefit from all the unique properties of the alloy, mainly the high joint strength. This gold plating can skew the final joint composition, post reflow, away from a final joint composition of 80Au20Sn. GaN dies have a thick gold plating to prevent oxidation, about ten times thicker than usual.
With Gallium Nitride (GaN) dies becoming popular in high frequency, high power, and high reliability RF power amplifier devices for 5G and other critical military and aerospace wireless communications, soldering for these popular dies can be very challenging. The difference creates a molten range where the mixture looks plastic or pasty. Off-eutectic alloy's solidus (not melted) and liquidus (completely melted) temperatures are different. Our off-eutectic AuSn preforms are currently available now in 79/21, 78/22, and 75/25 compositions, with a wide range of X, Y, and Z dimensions available. Indium Corporation's new off-eutectic alloy preforms ensure strong solder joints in a plethora of device and package hardware. All of these properties provide the perfect solder material required for the high quality and performance needed for implantable medical devices. Pure gold is highly pure, inert, biocompatible, has a high resistance to corrosion, and works excellently to provide a hermetic seal in the device. Read More Solder in Medical Devices: That Solder’s Going Where?Ĭardiac pacemakers generally use 99.99% Au preforms as the solder material in the assembly. Soldered copper is one the metals used for RF shielding because it absorbs radio and other electromagnetic waves and easily conforms to any odd angles, while not requiring much maintenance. Shielding the RF waves generated by an MRI machine is mandatory. Read More Solder in Medical Devices: Wait, There's Solder There?
Our gold-based alloy library includes a wide variety of gold-based solders suitable for any application at hand, such as 80Au20Sn, 88Au12Ge, 96.8Au3.2Si, 82Au18In, and 100Au. Gold-based alloys offer strong solder joints, excellent corrosion and oxidation resistance, and good thermal and electrical transfer. Indium's “Gold Standard” refers to the overall reliability and quality you can expect from our gold-based solder materials. Read More Back to Basics: Au-Based Alloys Indium Corporation to promote new specialty prodict offerings: AuLTRA™75, AuLTRA™ ThInFORMS™, and AuLTRA™ Fine Ribbon, at SPIE Photonics West in San Francisco, CA (January 22-27). SiP & Heterogeneous Integration & Assembly (HIA)Ĭlose Related Gold Preforms Blog Articles SPIE Photonics West 2022.The Indium Corporation & Macartney Family Foundation.
0 kommentar(er)
