andy_con
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- May 24, 2007
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ive got a 900ma driver, its the die4laser driver, just missing the diode
heruursciences said:Case positive is common for high power laser diodes because the emitting stripes are made near the surface of the positive side of the dies, so they mount it that way to avoid heat flowing through the chip and cooking it. Even case negative diodes are usually positive side down, just there is an insulating barrier made of either boron nitride or beryllium oxide- sometimes even DIAMOND!- put between the + side of the diode and the case.