The rate at which holes—positive charges—move through a substance is known as hole mobility. InP reclaim wafers are a great option for high-speed, low-power electronics and optoelectronic devices because of their superior hole mobility compared to other III-V semiconductors.
However, InP's high hole mobility isn’t its single impressive trait. This, among other unique properties, is what makes reclaimed indium phosphide a top-tier material, and here we’ll explain why.
Hole mobility in semiconductor physics is the ease with which "holes" (positive charge carriers) flow through a substance in an electric field. Both electrons, which are negative charge carriers, and holes, which are positive charge carriers, can carry current in a semiconductor.
Essentially, a hole is the absence of an electron. It works like a bubble in water: it is not a "thing," but it moves like one. The speed and effectiveness of those positive charges passing through the semiconductor material is known as hole mobility.
This is crucial in devices where you want both electrons and holes to move quickly and effectively, such as photodetectors or p-type transistors. In complementary devices (like CMOS circuits), materials with high hole mobility also lead to faster switching speeds, reduced power consumption, or improved overall performance.
Indium Phosphate (InP) stands out among semiconductors due to its high hole mobility, which measures around 150 cm²/V·s. InP allows p-type transistors to operate more quickly and effectively, which is an essential benefit in high-speed electronics and optoelectronic devices.
Besides its robust hole performance, InP has high electron mobility, with a clock speed of about 5400 cm²/V·s. This balance between electron and hole movement allows for more efficient device designs.
Additionally, the material has a high breakdown voltage, which makes it stable and dependable in high-power and high-frequency settings, such as terahertz and radio-frequency devices.
Unlike silicon, indium phosphide has high hole mobility that allows for the creation of p-type devices that don’t bottleneck system performance. This makes it ideal for high-speed fiber-optic communication chips, photonic integrated circuits, terahertz and RF applications, and LIDAR and sensing systems.
By understanding the electrical properties of a semiconductor, you can figure out whether or not this material fits your project’s requirements. If you need help, contact Wafer World today!
