USPTO Awards Solar-Tectic Important Patent Describing Thin-Film Growth Process

Solar-Tectic LLC (ST) reported that the United States Patent and Trademark Office (USPTO) has issued the company a major patent (over 50 claims). The claims relate to a wide variety of technologies including the growth of highly textured, or large grained single-crystal semiconductor films on inexpensive substrates, such as glass.

The late Dr. Praveen Chaudhari, winner of the 1995 U.S. Medal of Technology invented the technologies that have applications in thin-film solar cells, field-effect transistors, TFT displays, and LEDs. US patent (12|774,465) describes a modified Vapor-liquid-solid (VLS) thin-film (TF) growth method that allows low-temperature deposition of high-quality semiconductor films.
The films can come from a variety of materials such as silicon, GaN, or germanium, on inexpensive substrates.

The nanowire-like but thin-film growth process involves eutectic alloys. ST says that the process is very well suited for large-scale industrial applications as well as being cost effective. According to the company the process is compatible with common deposition processes included CVD and e-beam.