Samsung, Sumitomo Chemical Phase out LED Sapphire Substrate Business


Sumitomo Chemical has reportedly phased out its LED sapphire substrate business. SSLM, a South Korean sapphire wafer joint venture funded by Sumitomo Chemical and Samsung, stopped manufacturing sapphire substrates and Samsung also claimed to have halted investments in the company, reported The Nihon Keizai Shinbun.

Samsung and Sumitomo Chemical established SSLM in 2011, when LED was a core business of Samsung. The Japanese company is known for its high purity alumina. Back then, they wanted to expand their presence in emerging markets through the synergies. However, in face of threats from Chinese competitors, Samsung eventually decided to downsize its LED business, which consequently led to the phase out of sapphire substrate production in SSLM.

The SSLM plant in Daegu will be using its existing equipment to solely produce lithium battery separators.

Separators are used to separate the anode and cathode in the Li-ion battery at the same time enabling the movement of ions through the cell. Sumitomo provides its products to the Tesla Gigafactory. 

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

Streetlights and high-bay fixtures require high flux and efficacy to meet the ever increasing demands for system efficiency and energy cost reduction for these applications. Today, LUXEON 5050 LEDs received an upgrade in both flux and efficacy... READ MORE

The recent outbreak of COVID-19 has prompted the large-scale search for practical solutions that can prevent the spread of the deadly virus — from researchers and scientists committed to finding a solution, to the manufacturers and consu... READ MORE