| 摘要 |
PROBLEM TO BE SOLVED: To provide glass for sealing a semiconductor, the glass having low sealing temperature and practically sufficient chemical durability, particularly acid resistance, although the glass does not substantially contain PbO. SOLUTION: The glass for sealing a semiconductor contains, as the glass composition, two or more kinds of alkali metal oxides (Li<SB>2</SB>O, Na<SB>2</SB>O and K<SB>2</SB>O), B<SB>2</SB>O<SB>3</SB>and Bi<SB>2</SB>O<SB>3</SB>but substantially no PbO. The glass shows a temperature of 660°C or lower at viscosity of 10<SP>6</SP>dPa s, and has a coefficient of thermal expansion of 85 to 105×10<SP>-7</SP>/°C at 30 to 380°C. COPYRIGHT: (C)2011,JPO&INPIT
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