What MicroFab does

SemiGen, Inc. is a private US-based RF/microwave manufacturing company operating as a wholly-owned subsidiary of Naprotek out of Londonderry, New Hampshire. The firm provides precision RF circuit fabrication, atomic-level micro-machining, and high-reliability electronic assembly services primarily to military and aerospace customers. Its core technology stack is built on RF/microwave thin film deposition and ion beam etching processes, which underpin an in-house component portfolio spanning passive devices (tantalum nitride resistors, MIS and beam lead capacitors, Lange/hybrid couplers, notch/band-pass filters, spiral inductors, thin film transmission lines, attenuator pads) and semiconductor devices (PIN, Schottky, tunnel, limiter, step recovery, and point contact diodes in stripline, beam lead, bridge-quad, and ring-quad configurations).

Beyond discrete components, SemiGen monetizes an integrated services stack: contract manufacturing (RF/microwave hybrid assembly, automated PCB assembly), foundry processing (thin film deposition, metallization, ion beam milling, wafer dicing on Disco equipment, substrate property consultation), testing (RF/microwave performance testing, MIL-STD high-reliability screening), and solution services (design engineering, module repair/refurbishment, and an RF Supply Center Shopify storefront for bonding tools and consumables). The company holds ISO 9001:2008 registration, ITAR registration, and joint CMMC 2.0 Level 2 certification with Naprotek, positioning it for defense prime contracts.

The business model is predominantly direct B2B enterprise sales to defense contractors and aerospace OEMs, supplemented by quote-based contract manufacturing and an e-commerce channel for consumables. Pricing is quote-based and not publicly disclosed. The go-to-market relies on the corporate website, technical content, and trade-show presence (notably IMS exhibitions), with named customer validation through the BAE Systems Partner 2 Win Silver Tier Award received in 2025.

Name

MicroFab

Legal name

SemiGen, Inc.

Website

https://microfabnh.com

Company type

Private

Founded year

2010

Operating status

Operating

Short description

SemiGen is a US-based RF/microwave manufacturer (subsidiary of Naprotek) providing thin film circuits, semiconductor diodes, and high-reliability assembly, testing, and foundry services to defense and aerospace customers from Londonderry, NH.

Ownership category

akta.pro rank

Product category

RF/Microwave Components and Contract Manufacturing

NAICS

Semiconductor and Related Device Manufacturing (334413), Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Printed Circuit Assembly (Electronic Assembly) Manufacturing (334418), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Electronic Components, Nec (3679), Semiconductors & Related Devices (3674), Electronic Coils, Transformers & Other Inductors (3677)

akta.pro primary industry

Military Power Supplies, RF/Microwave Components & Ruggedized Electronics (IMABAGAJ)

akta.pro secondary industries

Passive Components (Resistors, Capacitors, Inductors, Ferrites) (IMAGAJAA), PCB Assembly (PCBA/EMS) (HDAHAOAI)

Keywords

• RF microwave components
• Thin film circuits
• Precision micromachining services
• Military aerospace electronics
• Semiconductor diode fabrication

Headquarters

HQ city

Manchester

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Infrastructure, Supply Chain, Marketing or Sales

Distribution channels2 records

Marketing channels4 records

Core offering

MicroFab is an end-to-end RF/microwave manufacturing partner that fabricates and supplies precision passive components (attenuators, capacitors, couplers, filters, inductors, resistors, transmission lines, thin film circuits), in-house semiconductor devices (PIN, Schottky, limiter, step recovery, tunnel, point contact diodes), and contract manufacturing and testing services including RF/microwave assembly, automated PCB assembly, MIL-STD high-reliability screening, thin film processing, ion beam milling, metallization, and wafer dicing for military and aerospace customers.

Product overview

The company offers a comprehensive portfolio of RF/microwave products and services as a unified manufacturing ecosystem. Its product lineup consists of Passive Components (including Attenuators, Fixed Attenuator Pads, MIS Capacitors, Binary Capacitors, Beam Lead Capacitors, Lange and Hybrid Couplers, Diode Submounts, Filters, Inductor Coils, Resistors, Standoff Capacitors, Transmission Lines, Thin Film Circuits, and Planar Chip Inductors) and Semiconductor Devices (including PIN Diodes, Stripline PIN Diodes, Beam Lead PIN Diodes, Limiter Diodes, Step Recovery Diodes, Point Contact Diodes, Schottky Diodes, Schottky Barrier Bridge Quads, Schottky Barrier Ring Quads, Tunnel Diodes, and Zero Bias Schottky Detector Diodes). These are complemented by Manufacturing Services (RF/Microwave Assembly, Automated PCB Assembly), Testing Services (RF/Microwave Performance Testing, High-Reliability/MIL-STD Screening), Foundry Services (Thin Film Processing, Metallization, Wafer Dicing, Ion Beam Milling, Substrate Properties), and Solution Services (RF/Microwave Design Engineering, Module Repair and Refurbishment, RF Supply Store). The company positions itself as an end-to-end manufacturing partner providing advanced microwave assembly, products, and services to augment customer manufacturing and design goals.

Differentiator

Problem solved

Functional benefit

Brands

• RF Supply Center: Online store for in-stock bonding tools and materials

Products and services

• Attenuators Ion beam etched thin film RF/microwave attenuators used for signal reduction in RF and microwave circuits, designed for customers building high-frequency modules for defense and aerospace applications.
• Fixed Attenuator Pads Thin film RF/microwave fixed attenuator pads designed for consistent signal attenuation in RF and microwave systems.
• MIS Capacitors Metal-Insulator-Semiconductor capacitors manufactured for RF/microwave applications using thin film processes.
• Binary Capacitors Binary capacitors designed for RF/microwave circuit applications.
• Beam Lead Capacitors Beam lead capacitors designed for RF/microwave hybrid circuit integration.
• Lange and Hybrid Couplers RF/microwave thin film couplers for signal splitting and combining in high-frequency circuits.
• Diode Submounts Laser diode submounts manufactured with thin film technology for thermal management and electrical connection in RF/microwave modules.
• Filters Thin film RF/microwave filters available in notch, low-pass, high-pass, band-pass, and reject configurations for high-frequency signal conditioning.
• Inductor Coils Spiral inductor coils designed for RF/microwave applications.
• Resistors Tantalum nitride thin film resistor chips for precision resistance requirements in RF/microwave circuits.
• Standoff Capacitors Thin film standoff capacitors for RF/microwave circuit applications.
• Transmission Lines Thin film RF transmission lines in 50-ohm microstrip configuration for high-frequency signal routing.
• Thin Film Circuits Custom RF/microwave thin film circuits and devices tailored to specific customer requirements using thin film processes.
• Planar Chip Inductors Planar chip inductors for surface mount RF/microwave applications.
• PIN Diodes PIN diodes for RF/microwave switching and attenuation applications in defense and aerospace electronics.
• Stripline PIN Diodes Stripline configured PIN diodes for controlled impedance RF applications.
• Beam Lead PIN Diodes Beam lead style PIN diodes for hybrid circuit mounting in RF/microwave modules.
• Limiter Diodes Diodes designed for RF power limiting and protection in RF/microwave systems.
• Step Recovery Diodes Step recovery diodes for frequency multiplication and harmonic generation in RF/microwave applications.
• Point Contact Diodes Point contact diodes for microwave detector applications.
• Schottky Diodes Schottky barrier diodes for mixing, detection, and switching in RF/microwave systems.
• Schottky Barrier Bridge Quads Bridge quad configuration Schottky diodes for balanced mixer applications.
• Schottky Barrier Ring Quads Ring quad configured Schottky diodes for image rejection mixer applications.
• Tunnel Diodes Tunnel diodes for oscillator and amplifier applications requiring negative resistance characteristics.
• RF/Microwave Assembly End-to-end RF/microwave assembly services for hybrid circuits and modules, serving defense and aerospace customers requiring high-reliability electronics.
• Automated PCB Assembly Automated printed circuit board assembly services for mixed-signal electronic devices.
• RF/Microwave Performance Testing RF/microwave performance testing to verify electrical specifications and performance characteristics of components and assemblies.
• High-Reliability/MIL-STD Screening High-reliability screening and qualification testing services meeting MIL-STD requirements for defense and aerospace applications.
• Thin Film Processing Thin film processing services for deposition and patterning of conductive and dielectric layers used in RF/microwave circuit fabrication.
• Metallization Metallization services for circuit fabrication including gold, nickel, and other metal systems.
• Wafer Dicing Wafer dicing and cutting services using Disco saw equipment for semiconductor and substrate processing.
• Ion Beam Milling Ion beam milling and etching services using advanced thin film technology for precision pattern definition in RF/microwave circuits.
• Substrate Properties Substrate property consultation and processing services for various circuit substrate materials.
• RF/Microwave Design Engineering Expert RF/microwave engineering assistance for component design and hybrid assembly development provided to defense and aerospace customers.
• Module Repair and Refurbishment RF/microwave module repair and refurbishment services to extend equipment lifecycle for defense and aerospace customers.
• RF Supply Store Online storefront providing in-stock bonding tools and materials for semiconductor and RF assembly operations, operated as the RF Supply Center.

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Direct peers

• Mini-Circuits: Mini-Circuits designs and manufactures RF, IF, and microwave components including attenuators, filters, couplers, mixers, and passive devices for commercial, industrial, and defense applications. It directly overlaps SemiGen's RF/microwave passive component catalog.
• Knowles Precision Devices: Knowles Precision Devices (formerly DLI/Voltronics) manufactures precision passive components including capacitors, inductors, filters, and thin film devices for RF/microwave and defense applications. It overlaps directly with SemiGen's thin film capacitors, inductors, and resistor offerings.
• MACOM Technology Solutions: MACOM is a leading supplier of RF, microwave, millimeterwave, and photonic semiconductor products including PIN diodes, Schottky diodes, and passive components for defense, aerospace, and communications. It is one of the closest direct competitors to SemiGen's discrete RF/microwave diode and passive portfolio.
• API Technologies (now part of Spectrum Control): Spectrum Control (which absorbed API Technologies and Weinschel) designs and manufactures RF/microwave components, filters, attenuators, and integrated subsystems for defense and aerospace. It competes with SemiGen in thin film attenuators, filters, and high-reliability RF assemblies.
• Pasternack (Infinite Electronics): Pasternack is a distributor and manufacturer of RF, microwave, and millimeterwave components, interconnects, and test equipment serving defense, aerospace, and commercial customers. Its catalog of passive RF components and adapter products competes with SemiGen's RF/microwave passive catalog.
• Mercury Systems: Mercury Systems is a defense-focused electronics provider of RF, microwave, millimeterwave, digital, and embedded processing subsystems. Its mission-critical RF/microwave subsystem business closely parallels SemiGen's defense assembly and thin film circuit capability, and it competes for similar defense prime contracts.

Others

• Naprotek: Naprotek is the parent company of SemiGen and a provider of electronics manufacturing services including PCBA, cable/harness, and microelectronics for defense and aerospace. Included as a peer because SemiGen is operationally embedded in Naprotek's portfolio and shares CMMC certification, trade show presence, and customer base.

Broad incumbents

• Skyworks Solutions: Skyworks is a broad incumbent RF semiconductor company supplying amplifiers, switches, attenuators, and integrated modules across mobile, IoT, and defense end markets. Its RF switching and signal-conditioning products overlap with SemiGen's PIN/Schottky diode and attenuator lines, though at much larger scale.
• Qorvo: Qorvo is a major RF systems company serving defense, aerospace, and commercial wireless markets with GaN/GaAs amplifiers, switches, filters, and integrated modules. It competes with SemiGen across multiple RF component categories and on many of the same defense platform programs.
• Analog Devices: Analog Devices (including its legacy Hittite and Maxim portfolios) supplies RF, microwave, and millimeterwave components, converters, and integrated modules to defense and aerospace customers. It is a broad incumbent competing with SemiGen in diodes, mixers, and high-reliability RF components.

Market position

Strengths4 records

Weaknesses4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about MicroFab