US PATENT CLASS 438:SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS |
SubClass
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CLASS NOTES
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1
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Having biomaterial component or integrated with living organism
|
2
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Having superconductive component
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3
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Having magnetic or ferroelectric component
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4
|
Repair or restoration
|
5
|
Including control responsive to sensed condition
|
14
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With measuring or testing
|
19
|
Having integral power source (e.g., battery, etc.)
|
20
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Electron emitter manufacture
|
21
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Manufacture of electrical device controlled printhead
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22
|
Making device or circuit emissive of nonelectrical signal
|
48
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Making device or circuit responsive to nonelectrical signal
|
99
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Having organic semiconductive component
|
100
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Making point contact device
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102
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Having selenium or tellurium elemental semiconductor component
|
104
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Having metal oxide or copper sulfide compound semiconductor component
|
105
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Having diamond semiconductor component
|
106
|
Packaging (e.g., with mounting, encapsulating, etc.) Or treatment of packaged semiconductor
|
128
|
Making device array and selectively interconnecting
|
133
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Making regenerative-type switching device (e.g., scr, igbt, thyristor, etc.)
|
141
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Making conductivity modulation device (e.g., unijunction transistor, double base diode, conductivity-modulated transistor, etc.)
|
142
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Making field effect device having pair of active regions separated by gate structure by formation or alteration of semiconductive active regions
|
309
|
Forming bipolar transistor by formation or alteration of semiconductive active regions {25}
|
379
|
Voltage variable capacitance device manufacture (e.g., varactor, etc.)
|
380
|
Avalanche diode manufacture (e.g., impatt, trappat, etc.)
|
381
|
Making passive device (e.g., resistor, capacitor, etc.)
|
400
|
Formation of electrically isolated lateral semiconductive structure
|
455
|
Bonding of plural semiconductor substrates
|
460
|
Semiconductor substrate dicing
|
466
|
Direct application of electrical current
|
471
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Gettering of substrate
|
478
|
Formation of semiconductive active region on any substrate (e.g., fluid growth, deposition)
|
510
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Introduction of conductivity modifying dopant into semiconductive material {7}
|
570
|
Forming schottky junction (i.e., semiconductor-conductor rectifying junction contact)
|
584
|
Coating with electrically or thermally conductive material {2}
|
689
|
Chemical etching
|
758
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Coating of substrate containing semiconductor region or of semiconductor substrate
|
795
|
Radiation or energy treatment modifying properties of semiconductor region of substrate (e.g., thermal, corpuscular, electromagnetic, etc.)
|
800
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Miscellaneous
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Source:USPTO
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