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| | Class 438: SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS / U.S. Patent Classification Definitions |
 | | When Class 438 coating (see B above) or etching operations (see C above) are not included, Class 29, following historical precedence, provides for processes of mounting, packaging, molding, or encapsulating of semiconductors having no significant semiconductor chip structure (e.g., merely recited as semiconductor chip, per se, etc.) when not elsewhere provided. |
 | | 250, Radiant Energy, for heating invisible radiant energy; subject matter of Class 438, per se, when no function other than heating is attributed to the process and for methods not elsewhere provided, of (a) using, generating, controlling, or detecting radiant energy, (b) combinations including such methods, and (c) subcombinations thereof. |
 | | However, inclusion of the criteria for Class 438 as set forth hereinabove takes the original to Class 438 even when generic heating is involved. |
| www.uspto.gov /web/offices/ac/ido/oeip/taf/def/438.htm (12763 words) |
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