SEMI Sets up First HB-LED Standards

SEMI's HB-LED Standards Committee has approved its first standard, specifying sapphire wafers used in making HB-LED devices.

Five categories of single-crystal, single-side polished c-axis sapphire wafers are covered by the new HB1 standard:
•    Flatted 100mm diameter, 650μm thick,
•    Flatted 150mm diameter, 1,000μm thick,
•    Flatted 150mm diameter, 1,300μm thick,
•    Notched 150mm diameter, 1,000μm thick, and
•    Notched 150mm diameter, 1,300μm thick

SEMI's HB-LED Standards Committee was formed in late 2010, comprised of companies involved in HB-LED devices, sapphire wafers, MOCVD wafer processing, and equipment and materials suppliers.

SEMI also plans to begin experiments and test methods based on a survey deployed last summer about defect vs. inspection techniques, aiming to identify sapphire wafer defects and inspection techniques catering to HB-LED manufacturing.

The wafer, automation, and impurities/defects task forces will be meeting at the Strategies in Light conference Feb. 12-14 in Santa Clara, CA. The NA HB-LEB committee and task forces will meet at the NA Standards Spring 2013 meetings April 1-4 in San Jose.

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.

Tokushima, Japan - 6 March 2024: Nichia, the world's largest LED manufacturer and inventor of the high-brightness blue and white LED, has started mass production of the new UV-B (308nm) and UV-A (330nm) LEDs in its popular 434 Series packa... READ MORE

New XLamp® S Line LEDs enhance growth, last longer, lower energy costs Horticulture and other forms of agricultural lighting require application-tuned ratios of spectral content, high efficacy and long lifetimes. Whether you are interested... READ MORE