… for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in …
Explanatory notes
… for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in … as drawn, or in the form of cylinders or rods, they are classified in Chapter 28 . (2) Chemical compounds such as … or not, whether or not coated with a uniform epitaxial layer. Those more extensively worked (e.g., by selective …