CLA-2-84:S:N:N1:104 860940
Mr. Leon Pauksta
Nichimen America Inc.
225 North Michigan Avenue - Suite 2322
Chicago, Illinois 60601-5983
RE: The tariff classification of wet stations for processing
semiconductor wafers from Japan.
Dear Mr. Pauksta:
In your letter dated February 22, 1991 you requested a
tariff classification ruling.
The NU-100 and the NU-101 Automatic Pre-Diffusion Wet
Stations are immersion etch systems used in the fabrication of
semiconductor wafers. The process is basically the dunking of a
cassette of wafers into a tank of heated chemicals followed by a
rinse and a dry. The NU-100 includes seven processing tanks (four
for rinsing), a loader and an unloader (each holds eight 6"
cassettes), a carrier and a spin dry system. The NU-101 has three
processing tanks (two for rinsing) and an IPA vapor dry system in
addition to the loader, unloader and carrier.
The applicable subheading for the NU-100 and the NU-101
Automatic Pre-Diffusion Wet Stations will be 8464.90.0060,
Harmonized Tariff Schedule of the United States (HTS), which
provides for machine tools for working stone, ceramics, ... or
like mineral materials or for cold working glass: other. The
rate of duty will be 3 percent ad valorem.
This ruling is being issued under the provisions of Section
177 of the Customs Regulations (19 C.F.R. 177).
A copy of this ruling letter should be attached to the entry
documents filed at the time this merchandise is imported. If the
documents have been filed without a copy, this ruling should be
brought to the attention of the Customs officer handling the
transaction.
Sincerely,
Jean F. Maguire
Area Director
New York Seaport