US PATENT SUBCLASS 216 / 13
FORMING OR TREATING ELECTRICAL CONDUCTOR ARTICLE (E.G., CIRCUIT, ETC.)

Current as of: June, 1999
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216 /   HD   ETCHING A SUBSTRATE: PROCESSES

13FORMING OR TREATING ELECTRICAL CONDUCTOR ARTICLE (E.G., CIRCUIT, ETC.) {6}
14  DF  .~> Forming or treating lead frame or beam lead
15  DF  .~> Forming or treating a crossover
16  DF  .~> Forming or treating resistive material
17  DF  .~> Forming or treating of groove or through hole {2}
20  DF  .~> Adhesive or autogenous bonding of self-sustaining preforms (e.g., prefabricated base, etc.)
21  DF  .~> Repairing circuit

DEFINITION

Classification: 216/13

FORMING OR TREATING ELECTRICAL CONDUCTOR ARTICLE (E.G., CIRCUIT, ETC.):

(under the class definition) Process wherein etching is used in the forming or treating of an electrical conductor.

(1) Note. The conductor maybe either a self sustaining conductor or a conductor on a supporting substrate, e.g., a printed circuit, etc.

SEE OR SEARCH CLASS

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

125, where the product is a circuit board or printed circuit.

427, Coating Processes,

96+, for integrated circuit, printed circuit or circuit board making processes.

428, Stock Material or Miscellaneous Articles, cross-reference art collection 901 for a printed circuit.