4. Electrical resistors
  5. Mechanically variable
  6. Resistance value varied by removing or adding material

Harald Wanka

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Method for producing defined polycrystalline silicon areas...

Semiconductor device manufacturing: process – Chemical etching – Vapor phase etching
Reexamination Certificate

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Mixture for doping semiconductors

Semiconductor device manufacturing: process – Introduction of conductivity modifying dopant into...
Reexamination Certificate

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Planar trimming resistor, applications and method for its...

Electrical resistors – Mechanically variable – Resistance value varied by removing or adding material
Reexamination Certificate

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Plasma reactor with high productivity

Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – Having glow discharge electrode gas energizing means
Reexamination Certificate

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Pressure measuring device for vacuum systems

Measuring and testing – Fluid pressure gauge – Diaphragm
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Profile ID: LFUS-PAI-P-2659588

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