25 pc clear clean-room tape sealed Empak cassette
Wafers p/ cassette: 25 (no partials)
Bags: Heat sealed plastic inner/ foil outer
Labels: No Labels of any kind on cassette and inner bag
Box: Double walled cardboard
Packaging Material: Material that protects wafers on all sides
A Brief History of Silicon as a Semiconductor
Silicon was discovered in the early half of the 19th century by Jöns Jacob Berzelius, a Swedish chemist. After its discover, there were no major uses for over 100 years, until the digital revolution. While silicon makes up about 95% of all semiconductors today, germanium (Ge) made up most of the original semiconductors and transistors. After finding that silicon has superior thermal and leakage properties than Ge in 1954 by Texas Instruments, the industry movement began. Fast forward to today, and there are 10.5 billion square inches of silicon wafers shipped around the world each year. These power nearly everything we use on a daily basis from phones to cars. There are also countless unique research purposes that are pushing technological boundaries.
Yisemi produces prime grade wafers in all diameters from 50.8mm to 450mm that meet or exceed the standards of Semiconductor Equipment and Materials International (SEMI). Prime grade wafers are the highest possible grade of silicon wafer and can be used for device manufacturing, with properties usually including extremely smooth surface and low Total Thickness Variation (TTV). While Yisemi normally works with traditional wafers, custom diameters and sizes can also be processed upon request.
Q1. Can I have a sample order for wafer?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
Q3. Do you have any MOQ limit for led light order?
A: Low MOQ, 25pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.