MAKING PASSIVE DEVICE (E.G., RESISTOR, CAPACITOR, ETC.):
(under the class definition) Process for making an electrical device or component utilizing a semiconductor substrate in which charge carriers do not change their energy levels and that does not provide rectification, amplification, or switching, but which does react to voltage and current input.
(1) Note. Formation of a conductive layer of specified resistivity is not sufficient for placement hereunder unless the intent is for the layer to function as a discrete resistor element.
(2) Note. An isolation structure which functions by the application of an electrical bias (e.g., a channel stop, guard ring, or field plate region) is not a passive charge storage element proper here for, nor is the floating gate structure of a field effect device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
21, for making a device controlled ink jet printhead or thermal printhead.
50, for a process of making a pressure sensitive resistive device.
171, for a process of making a Schottky gate field effect transistor combined with a passive electrical device.
190, for a process of making a junction gate field effect transistor combined with a passive electrical device. 210, for a process of making complementary insulated gate field effect transistors combined with a passive electrical device.
238, for a process of making an insulated gate field effect transistor combined with a passive electrical device.
329, for a process of making a bipolar transistor combined
with a passive electrical device.
379, for a process of making a voltage variable capacitance device.
SEE OR SEARCH CLASS
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
61, for methods of vitrifying or sintering of inorganic preform to make a discrete passive device (e.g., multilayer ceramic capacitor, etc.).
