SAN FRANCISCO Micro fuel-cell developer Neah Power Systems Inc. Friday (June 2) announced plans to expand the research and development of its patented porous silicon-based direct methanol fuel cell to include 200-mm wafers. The company's current process primarily uses 100-mm wafers.
While the 100-mm process has proven successful in producing four electrodes with an aggregate active area of 20 square centimeters, large-scale silicon processing is mainly performed on 200- and 300-mm wafers, the company noted in a prepared statement.
By migrating to 200-mm wafers, Neah (Seattle) said it expects to produce electrodes with an aggregate active area of 202 square centimeters, representing a 10-fold increase in active silicon per wafer over its process, the company said. The adoption of 200-mm wafers also increases access to a wider range of partners for outsourced silicon production, Neah said.
Neah earlier this month completed a private placement funding round. But the company has acknowledged difficulty in getting its fuel-cell product to market in volume and is running out of money, despite financial backing from the likes of Intel Corp, Novellus Systems Inc. and others.