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    • 5. 发明专利
    • Semiconductor laser device
    • 半导体激光器件
    • JP2013225654A
    • 2013-10-31
    • JP2013009484
    • 2013-01-22
    • Nichia Chem Ind Ltd日亜化学工業株式会社
    • FUJIMOTO HIDEYUKINAKAGAKI MASATOSHI
    • H01S5/022
    • H01S5/02272H01L24/27H01L24/31H01L2224/27005H01L2224/32113H01L2224/48091H01S5/02236H01S5/02268H01S5/024H01S5/02469H01S5/02476H01S5/32341H01L2924/00014
    • PROBLEM TO BE SOLVED: To prevent a far field pattern (FFP) from being adversely influenced by interruption of light from a semiconductor laser chip by another member.SOLUTION: A semiconductor laser device 100 includes, in order, a base 10, a first conductive layer 21, a second conductive layer 22, a third conductive layer 23 and a semiconductor laser chip 30 which have emission side ends and reflection side ends, respectively. The first conductive layer 21 has the emission side end coincident with the emission side end of the base 10, and has an external connection region 21a for electrical connection to the outside. The second conductive layer 22 is formed in a region different from the external connection region 21a of the first conductive layer so as to be thicker than the first conductive layer 21, and has the emission side end formed so as to be positioned inside the emission side end of the first conductive layer 21. The third conductive layer 23 has the emission side end formed so as to be coincident with the emission side end of the second conductive layer 22. The semiconductor laser chip 30 has the emission side end formed so as to be positioned outside the emission side end of the third conductive layer 23.
    • 要解决的问题:为了防止远场图案(FFP)受到来自另一个构件的半导体激光器芯片的中断的不利影响。解决方案:半导体激光器装置100依次包括基底10,第一导电 层21,第二导电层22,第三导电层23和半导体激光芯片30,其分别具有发射侧端和反射端。 第一导电层21具有与基底10的发射侧端一致的发射侧端部,并且具有用于与外部电连接的外部连接区域21a。 第二导电层22形成在与第一导电层的外部连接区域21a不同的区域中,以比第一导电层21更厚,并且具有形成为位于发射侧内侧的发射侧端 第三导电层23具有形成为与第二导电层22的发射侧端一致的发射侧端。半导体激光器芯片30的发射侧端形成为 位于第三导电层23的发射侧端的外侧。