n-PASHA Alliance Awarded 100 MW n-type Technology and Equipment Order for Nexolon Turnkey Project in USA

  n-PASHA Alliance Awarded 100 MW n-type Technology and Equipment Order for
                        Nexolon Turnkey Project in USA

PR Newswire

GUETENBACH, Germany, June 19, 2013

GUETENBACH, Germany, June 19, 2013 /PRNewswire/ -- The n-PASHA Alliance (RENA
GmbH, ECN and Tempress Systems, Inc.), is pleased to announce today that it
has been selected by Nexolon America LLC to provide n-type technology and
equipment to its photovoltaic cell production facility in San Antonio, Texas.
RENA, with its longtime relationship to Nexolon, is the contractual partner of
Nexolon for this 100 MW turnkey project. The n-PASHA technology and equipment
is designed to produce breakthrough, next generation n-type high-efficiency
cells enabling the production of bi-facial modules. This order is the first
phase of a planned 200 MW turnkey project for Nexolon.

Mr. Woojeong Lee, President of Nexolon America LLC, commented: "Through
evaluation of different technologies we chose the n-PASHA technology because
it has proven to deliver high levels of solar cell efficiency and importantly,
at an attractive cost structure making the n-PASHA technology highly
beneficial with regard to the overall cost of energy produced by solar farms."

Tempress (The Netherlands), the solar subsidiary of Amtech Systems, Inc.
(NASDAQ: ASYS),ECN (The Netherlands) and RENA (Germany) established their
Alliance to jointly offer a technology transfer of the n-PASHA n-type
bi-facial cell concept developed by ECN. Recent production technology
improvements yield average cell efficiencies above 19.5% at competitive
production cost. The n-type cells used for bi-facial modules generate
electricity from light coming through both the front and rear side of the
modules and in this way generate up to 20% more power in solar farms.
Additionally, the n-type cells do not suffer from LID (light induced
degradation) where power loss is typically three percent for commonly used
p-type cells.

Mr. Juergen Gutekunst, CEO of RENA GmbH, explains: "n-PASHA technology is the
high efficiency technology with excellent cost-benefit ratio. As one of the
leading suppliers for wet etching, cleaning and plating processes we optimized
our products for applications in the trend setting n-PASHA sequence. n-PASHA
helps us and our customer to stay at the cutting edge."

Mr. Fokko Pentinga, CEO of Amtech Systems, Inc., commented: "We have found
that through continued advancement of the n-PASHA technology we deliver a
competitive next generation high efficiency solar solution. This is the second
order for this technology underscoring the Alliance is on the right technology
path as the solar market progresses to higher value solutions. At Tempress,
with our industry-leading Alliance partners, we are well-positioned to deliver
these advanced technologies to the marketplace.We look forward to working
with Nexolon in San Antonio, a solar hub in the USA, on this exciting

Mr. Robert Kleiburg, COO of ECN, commented: "We are very proud that such a
prestigious company as Nexolon has chosen ECN's n-PASHA technology for its new
production facility in San Antonio. n-type silicon solar cells are gaining
market share rapidly and the Alliance is speeding up the roadmap towards even
higher performances. We are looking forward to intensify our collaboration
with our alliance partners RENA and Tempress and the n-PASHA community to
achieve our common goal to deliver better PV products."

About Nexolon
Nexolon is the leading solution provider in the solar energy industry. They
are advancing to be a global leader in the renewable energy industry by
manufacturing central components for solar power generation such as varieties
of solar ingots, wafers, cells and modules. Nexolon manufactures the backbone
components of solar power generation by procuring raw materials from
prestigious global polysilicon makers and by obtaining the latest,
state-of-the-art cell and module equipment. Polysilicon is melted down to
produce a highly purified silicon cylinder called an ingot which is then
sliced into wafers out of which solar cells can be made. A solar module is an
arrangement of solar cells. Since the electricity produced from each cell is
gathered simultaneously in a solar module, it is possible to generate
electricity safely and regularly when installed in areas with ample sunlight.

About ECN
With and for the market, ECN develops knowledge and technology that enable a
transition to a sustainable energy system. Countries and their economies
develop and grow. To meet the future energy needs, the global energy system
needs to become more sustainable. ECN's groundbreaking renewable energy
technologies and knowledge offer businesses and governments economic
opportunities and innovative distinctiveness. ECN plays a leading role in
energy R&D and policy advice and has gained a strong reputation worldwide in
the fields of solar and wind energy, bio-energy, energy efficiency,
environmental research and policy studies. Our track record of success is
illustrated by the fact that over 60% of all solar modules in the world
contain ECN technology and 80% of Europe's offshore wind farms is realized
with R&D and support from ECN. Employing around 500 professionals and having
multiple branches in Europe and Asia, ECN works on sustainability every day.

About RENA GmbH
"THE WET PROCESSING COMPANY" RENA regards itself as one of the world's leading
suppliers of high-tech equipment and plants, primarily for water treatment and
wet chemical surface processing. The areas of application for RENA products –
Water Treatment, Renewable Energy, Health & Others – reflect the vital needs
of people living in today's industrial society. RENA products are used to
treat water, waste water and chemicals and to process surfaces of products
such as solar cells, circuit boards and dental implants using wet chemicals or
water. RENA produces both standardized machines and systems with guaranteed
processes and machines and systems tailored to specific customer requirements.
The surfaces of around 50% of solar cells produced worldwide are textured
using RENA systems. Alongside solar activities, products for the area of
Renewable Energy include energy storage units, efficient combined heat and
power plants and waste to energy solutions. Typical products for the field of
Health & Others include surface processing systems for dental implants and
production systems for milk products. www.rena.com

About Amtech Systems, Inc.
Amtech Systems, Inc. manufactures capital equipment, including silicon wafer
handling automation, thermal processing equipment and related consumables used
in fabricating solar cells, LED and semiconductor devices. Semiconductors, or
semiconductor chips, are fabricated on silicon wafer substrates, sliced from
ingots, and are part of the circuitry, or electronic components, of many
products including solar cells, computers, telecommunications devices,
automotive products, consumer goods, and industrial automation and control
systems. The Company's wafer handling, thermal processing and consumable
products currently address the diffusion, oxidation, and deposition steps used
in the fabrication of solar cells, LEDs, semiconductors, MEMS and the
polishing of newly sliced silicon wafers. www.amtechsystems.com

Investor Relations
Patty Bruner
(480) 201-6075

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