Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
Part of: 38 — Miscellaneous chemical products
N223365 · 2012-07-25 — The tariff classification of indium phosphide gallium arsenide semiconductor wafers from an unspecified country
The merchandise subject to this ruling is referred to as indium phosphide gallium arsenide semiconductor wafers. They consist of chemical elements that have been doped with silicon and zinc. The wafers have also been metalized and etched in order to prepare them to be cleaved (cut) into laser bars and laser chips. Once the wafers are diced into individual chips or bars, they will be able to convert electrical energy into infra-red light, as that of a light emitting diode (LED). In your letter you stated that subheadings 3818.00.00 and subheadings 8541.50.00 seem to be viable classification…
953265 · 1993-05-14 — Protest No. 3196-91-100019; Showa Denko America; GAP-EPI-R Type Unmounted Light Emitting Diode Chips; LED; Wafer; Chip; Chemical Element Doped For Use In Electronics; 3818.00.00; 8541.40.20; 8541.40.60
This is our response to Protest Number 3196-91-100019, dated September 27, 1991, and Application for Further Review, regarding the classification of "GAP-EPI-R Type Unmounted LED Chips," under the Harmonized Tariff Schedule of the United States (HTSUS). The subject merchandise was entered on February 21, 1991, and the entry was liquidated on August 16, 1991. The protest was timely filed on September 27, 1991. FACTS: The "GAP-EPI-R Type Unmounted LED Chips" ("wafers") are described as gallium phosphate wafers and dice that are imported in "material" form to be used exclusively in the…
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