Naprotek, LLC.
Company desNaprotek is an electronics solutions provider for high-reliability products in the Defense, Space, Medical, and Semiconductor Capital Equipment markets and select applications in Test & Instrumentation and Advanced Technology. Capabilities include quick-turn printed circuit board assembly, prototyping, RF components, microelectronics, system integration, and test services.cription.
, San Jose CA
United States
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Standoff Capacitors
In standoff capacitors, SemiGen offers controlled dielectric thicknesses of +/- 12 microns, < 0.1 micron mounting surface finishes, and outline (L&W) tolerances of < 25 microns. We assure lot-to-lot repeatability and very attractive pricing. RF engineers requiring jumper mounts, bypass and tuning capacitor flexibility will find our wide selection of standoff capacitors convenient and reliable.
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Attenuators
The 01311 attenuator chip series is designed to achieve precision and tight flatness with an attenuation accuracy of ± 0.2 dB on our 1-10 dB pads and ± 0.3 dB on our 11-20 dB pads. SemiGen tests 100% of all attenuator chips prior to shipment to verify that they meet specifications.
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MIS Capacitors
The SemiGen 8000 and 8100 series of MIS Capacitors are available in a wide variety of capacitance ranges and sizes. They are made with prime starting material and consist of an Oxide/Nitride layer that provides low dielectric loss and high standoff voltage. These RF microwave chip capacitor products are available in chip form only.
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Point Contact Diodes
SemiGen’s 1N Series of Point Contact Mixer Diodes are designed for applications through KA band. Each device in this series is specially designed for low noise gure, impedance and VSWR. Our devices are drop in replacements for all military and commercial requirements. These diodes employ epitaxial silicon grown in a speci c reactor for optimized performance. They are suitable for use in stripline applications.
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Transmission Lines
SemiGens 50-ohm Transmission Lines offer the RF/microwave designer complete flexibility and repeatability for the most challenging applications.
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Beam Lead PIN Diodes
The SemiGen SBL 2000 series Beam Lead PIN Diodes feature fast switching speeds at both low capacitance and resistance. Beam Lead PIN Diodes have high levels of mechanical strength and stability during assembly. These diodes are suitable for microstrip or stripline circuits as well as circuits requiring high isolation from a series of mounted diodes such as multi-throw switches, phase shifters, attenuators and modulators.
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Lange Couplers
The Lange Coupler is a four-port interdigitated structure originally developed by Dr. Julius Lange in 1969. They are a common RF/microwave circuit. The coupling is derived from closely spaced transmission lines, such as microstrip lines. With the introduction of Ion Beam Milling, SemiGen’s ability to consistently produce Lange Couplers with lines and spaces as small as 10 microns and controlled to tolerances of +/- 1 micron is a direct result of our anisotropic ion beam etching process.
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Step Recovery Diodes
SemiGen’s SSR series of Step Recovery Diodes are epitaxial silicon varactors which provide high output power and efficiencies in harmonic generator applications. Using custom epitaxial wafers, our process ensures high reproducibility. The silicon dioxide passivation process assures greater stability and low leakage currents over temperature. Uniform capacitance ensures repeatability from device to device. These diodes are available in chip or packaged form.
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Resistors
SemiGen builds high power tantalum nitride resistor chips to customer specifications. We can manufacture chip resistors using a variety of substrates in various thicknesses to meet your specific needs. Resistors can be produced with element features under 0.002 inch for high density or high value resistor applications. Low noise stable TCR and chip sizes under 0.010 inch x 0.020 inch are routinely processed in production quantities. SemiGen’s series of Thin Film Resistors offer proven stability, low noise, and excellent TCR of both Tantalum Nitride (TaN) and Nichrome (NiC) resistive films. From our standard product offering, to custom requirements, this series of resistors is offered in a large selection of chip size, resistance values, and tolerances.
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Diode Submounts
Ultra-precise patterning of thin film metals on dielectrics with high thermal conductivity are used for diode submount applications. Via the acquisition of Ion Beam Milling, Inc., SemiGen is the industry leader for laser diode submount fabrication. As each application is different, we work with customers to develop a custom design that perfectly fits their requirements. We have experience producing circuits utilizing substrates of varying thicknesses with high thermal conductivity such as alumina (Al), aluminum nitride (AlN), and beryllium oxide (BeO). SemiGen can deliver laser diode submounts with or without Au/Sn pads depending on your needs.
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Limiter Diodes
The SemiGen SLP7100 series of Limiter Diodes are processed with a high-resistivity epi that have thin intrinsic layers. These devices are typically in the 2 to 20 micron range of epi thickness and can be gold doped to achieve specific performance goals. These diodes are used in passive or active limiter designs in the 100 MHz to 30 GHz frequency ranges. They are ideal for use in high-power applications and can be supplied in chip form or in your choice of packages below.
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Schottky Barrier Bridge Quads
SemiGen’s Silicon Schottky Diodes are designed for applications through 40Ghz. The special process technology utilizes various metal schemes to provide excellent performance of Low, Medium, and High Barrier applications. The end result is a low resistance diode with tightly controlled capacitance which allows for optimum performance. Low conversation loss and superior TSS make these diodes ideal for detector / mixer applications with frequency ranges from S band to Ka band as well as modulators, lower power limiters and high speed switches.
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Filters
In order to minimize filter roll-off, we start with a quality, highly polished substrate and apply layers of metallization within tight tolerances. Our highly anisotropic ion beam etching process enables us to produce features down to 10 microns. Furthermore, the milling process yields a high consistency from circuit to circuit meaning that whether we produce 1 or 100,000 filters, each one will have consistent filter roll-off characteristics.
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Schottky Barrier Ring Quads
SemiGen’s Silicon Schottky Diodes are designed for applications through 40Ghz. The special process technology utilizes various metal schemes to provide excellent performance of Low, Medium, and High Barrier applications. The end result is a low resistance diode with tightly controlled capacitance which allows for optimum performance. Low conversation loss and superior TSS make these diodes ideal for detector / mixer applications with frequency ranges from S band to Ka band as well as modulators, lower power limiters and high speed switches.
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Schottky Diodes
SemiGen’s Silicon Schottky Diodes are designed for applications through 40Ghz. The special process technology utilizes various metal schemes to provide excellent performance of Low, Medium, and High Barrier applications. The end result is a low resistance diode with tightly controlled capacitance which allows for optimum performance. Low conversation loss and superior TSS make these diodes ideal for detector / mixer applications with frequency ranges from S band to Ka band as well as modulators, lower power limiters and high speed switches.
