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Indium Corporation to host webinar on optimising sTIM processes for HIA

16th March 2023
Harry Fowle

Indium Corporation technical support engineer Ryan Mayberry will host a webinar about optimising reflowed solder thermal interface material (sTIM) processes for emerging heterogeneous integrated assembly (HIA) packages. The webinar, a part of the company’s InSIDER Series, will be held live at 2:00 p.m. (EST), 30th March, and made available for on-demand viewing afterwards.

Reflowed indium metal has for decades been the standard for sTIMs in most high-performance computing (HPC) TIM1 applications. The IEEE heterogeneous integration thermal roadmap states that new thermal interface material solutions must provide a path to the successful application of increased total-package die areas up to 100cm2. While GPU architectures are relatively isothermal during usage, CPU hotspots in complex heterogeneously-integrated modules will need to be able to handle heat flux hotspots up to 1000W/cm2 within the next two years. Indium and its alloys are used as reflowed sTIMs in both CPU and GPU ‘die-to-lid/heat spreader’ (TIM1) applications. Their high bulk thermal conductivity and proven long-term reliability suit them well for extreme thermomechanical stresses.

In this webinar, Mayberry will present on the effects of reflow methodology, solder flux type/fluxless processing, and preform design parameters, such as alloy type. Data will be provided on various reflow processes including pressure (autoclave) and vacuum reflow of sTIMs, which is becoming necessary to meet upcoming requirements for ultra-low voiding. The use of sTIMs in the context of alternative TIM applications and technologies, such as thermal greases, pads, and phase change materials, as well as liquid metals, will also be considered.

You may register for Mayberry’s webinar at: The webinar link will be shared with registrants on the day of the event. Registrants must use a company email account to avoid Indium Corporation’s spam filters. This is a first-come, first-served event.

As a technical support engineer, Mayberry is responsible for providing technical assistance to resolve soldering process-related issues. This includes assisting customers with optimising their use of Indium Corporation’s soldering materials, as well as providing product and process training to current and potential customers. Prior to Indium Corporation, he was an R&D scientist for a global metallisation paste business, where he developed novel glass and paste metallisation compositions tailored for emerging technologies. Mayberry holds a bachelor’s degree in materials science and engineering from Rutgers University, N.J. He is a Certified SMT Process Engineer (CSMTPE) and is certified as a Lean Six Sigma Green Belt.

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