Engineering & Scientific Software
Schematic Capture, Layout, Block Diagram
Manufacturers & Services

Schematic capture, layout, block diagram software listed here is used not for simulating circuit and/or system performance, but for documentation and publication. The software can take the form of specialized packages for documenting electrical and mechanical assemblies, to simple graphics drawing software. All modern word processing programs even have pretty good drawing features. Generally, price correlates directly to the capability of the software.

Here is a mixture of Payware, Shareware and Freeware for science and engineering.
Antenna, EM & Transmission Line Simulators | Circuit Simulators | System Simulators

Schematic Capture, Layout, Block Diagram | Photonics Simulators | Everything Else


Abacom | (+49) 04222 | 94 66 70 | Germany

Produces of high quality, low cost engineering software. sPlan for schematic entry. SprintLayout for PCB layout. FrontDesigner for designing equipment front panels. LochMaster for prototype board layout. ProfiLab for measurement systems (kind of LabView Lite).

Advanced Microcomputer Systems | 800-319-3599 | Sunrise, FL

CircuitCreator is an extremely affordable schematic design and capture, circuit simulation, full interactive symbol editor, professional PCB design and layout, and automatic routing. All in a single, integrated, complete product.

Ansoft | 412-261-3200 | Pittsburgh, PA

Ansoft Designer is the seamless solution for physics-based RF, high-speed, & communication design. By linking physical attributes to electrical performance, Ansoft Designer makes it possible to get it right the first time. With Ansoft's Solver on Demand technology & seamless integration, the software eliminates design risk & uncertainty by providing engineers with the information necessary to make correct decisions during all stages of the design process.

APLAC Corporation (now NI/AWR)

Applied Wave Research (now NI/AWR)

Artwork Conversion Software | 831-426-6163 | Santa Cruz, CA

CAD translators, postprocessors & plotter drivers.

AutoDesk | 415-507-5000 | San Rafael, CA

AutoCAD electrical, mechanical, OEM.

Bay Technology | 831-688-8919 | Aptos, CA

TraceSim transmission line simulator, and LinkCAD file format translator.

Beta LAYOUT, Ltd | 408-961-8673 | San Jose, CA

PCB-Pool

FREE layout/simulation program.

Cadence Design Systems | 800-746-6223 | San Jose, CA

OrCad PCB layout, Linear simulator.

CadSoft Computer | 800-858-8355 | Delray Beach, FL

Eagle - tool for designing printed circuit boards (PCBs).

Capilano Computing Systems, Ltd | 800-444-9064 | Canada

DesignWorks Professional - Schematic Capture, Windows, Mac OS 9 & Mac OSX, LogicWorks - interactive circuit design tool intended for teaching & learning digital logic. With DesignWorks Express you can draw, save, edit and print complete, professional circuit diagrams using powerful features like bussing, multi-level Undo/Redo, and automatic gate packaging.

Computer Simulation Technology (CST) | 508-665-4400 | Framingham , MA

Microwave Studio is a specialist tool for the 3D EM simulation of high frequency components. Microstripes is a powerful 3D electromagnetic simulation tool, used extensively for solving challenging radiation problems including complex antenna structures, installed performance, EMC/EMI/E3 issues. Design Studio is a versatile tool that facilitates 3D EM/circuit co-simulation and synthesis. Antenna Magus is the first antenna design tool of its kind - has a huge database of antennas that can be explored to find, design and export models of designed antennas to Microwave Studio.

Electronics Workbench National Instruments | 800-263-5552 | Cheektowaga, NY

Multicap capture program, suitable for pure schematic entry, driving simulation, or feeding PCB layout, Multisim integrated desktop design entry & simulation system, Ultiboard PCB layout, Ultiroute autorouting & autoplacement tool, Commsim used for modeling end-to-end communication systems at the signal or physical level.

HyDesign

RFSim99 schematic capture, S parameter files, stability circles, auto match, filter designer, attenuator designer and RF Calculator, free.

Intercept Technology | 404-352-0111 | Atlanta, GA

RF components map directly to the models used in HP EEsof's ADS, MDS, & Series IV. PANTHEON - PCB | Hybrid | MCM design application with geometry generation, component placement & routing, area fill, test points, split power planes, RF & hybrid design, & artwork creation/verification; MOZAIX - schematic capture application for rapid design entry - a single top-down & bottom-up hierarchical design application; PALINDROME - one-of-a-kind reverse-engineering product that allows a layout-driven design to back annotate PCB changes & additions to the schematic; INTERFACES - offers many schematic, autorouter, high speed, & RF interfaces to keep the design process flexible & easy.

Intusoft | 310-329-3295 | Gardena CA

ICAP/4 analog & mixed-signal simulation software, IsSpice4 Server - configurable multi-kernel IsSpice4 SPICE simulation, primarily intended for client-server networking applications.

Kovac Software | +44 (0)1889 508094 | England

AutoTRAX schematic capture, simulation, layout, autorouting.

Mentor Graphics | 800-547-3000 | Wilsonville, OR

SystemVision mixed-signal modeling & simulation environment using the power of VHDL-AMS & SPICE to verify control & mechatronic systemsludes graphical design entry, VHDL-AMS modeling & library tools, leading-edge simulation technology, powerful waveform viewing & analysis tools, HyperLynx - signal integrity & EMI analysis, PowerPCB design environment for complex, high-speed printed circuit boards, shape-based, rules-driven design layout solution.

National Instruments (Formerly AWR Corporation) | 310-726-3000 | El Segundo, CA

NI AWR Design Environment is a portfolio of software products that RF/microwave designers can use to design, develop, and realize microwave/RF components, circuits, and systems including monolithic microwave integrated circuits (MMICs), RF printed circuit boards (PCBs), microwave modules, RF integrated circuits (RFICs), communication systems, radar systems, and antennas. It consists of high-frequency design environments inclusive of System simulation (Visual System Simulator™), Circuit simulation (Microwave Office and Analog Office), Electromagnetic analysis (AXIEM and Analyst™) and also AWR Connected™ modules which expands functionality through 3rd party tool collaboration.

QuickSmith Nathan Iyer | RF Micro Devices | Very nice FREE Smith Chart program.

numGuru Technologies | 0091-011-43022506 | Delhi, India

Industry's first RF and Microwave simulator with circuit synthesis using evolutionary algorithms.

Protel (Altium Limited) | 800-544-4186 | Provo, UT

Protel 2004 features hierarchical, multi-channel schematic capture for both PCB & FPGA implementation, mixed-signal simulation, & signal integrity analysis, through to rules-driven board layout, Situs Topological autorouting & CAM file checking & editing.

RF Cafe | Greensboro, NC

RF Cascade Workbook 2018 extensive Excel spreadsheet, RF Workbench block diagram level RF system simulator, Up/Downconverter, Spurious Analysis, Budget - best value out there. RF Component Stencils for Visio including Smith Chart, EIA Equipment Racks, Tube Bases, Test Equipment, Semiconductors, Filters, Switches, Amplifiers, Antennas, Waveguide, and much more - over 700 objects! RF Cafe Online Calculators.

RF Calc | General purpose engineering calculator by MilMega - includes table of physical constants, component parameter calculators (capacitance, inductance, resonance, pads), multiple transmission line calculators.

ShapeSource | 425-369-6000 | Issaquah, WA

ShapeSource.com is the best resource for Microsoft Visio shapes and add-on products. This site contains shapes for free download and for sale that are useful for many business and technical diagrams.

Stone Pillar Technologies | 408-295-6478 | San Jose, CA

TestChipBuilder provides a complete environment for automating the layout and placement of on-chip RF structures for test chip creation or as simulation input. TestChipBuilder makes it easy to optimize RF structures by automatically generating dozens or hundreds of variations of library structures such as inductors, transformers, and capacitors or unique user-defined structures.

Tanner EDA | 626-471-9700 | Monrovia, CA

Enable designers to move rapidly from concept to silicon by enabling the design, layout, and verification of analog/mixed-signal ICs, ASICs, and MEMS. Tanner EDA solutions offer designers the perfect combination of price and performance to meet any design challenge. The company's solutions include tools for: Schematic Capture: S-Edit, Simulation: T-Spice, W-Edit Physical Layout: L-Edit, Verification: HiPer Verify, L-Edit Standard DRC, L-Edit LVS, and more Parasitic Layout Extraction: HiPer PX, 2D and 3D parasitic layout extraction.

The Math Works | 508-647-7000 | Natick, MA

MatLab high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numerical computation. RF Blockset to design and simulate the behavior of RF systems and components in a wireless system. RF Toolbox to design and analyze networks of RF components.

VerIC Systems LLC | 808-217-5557 | Hawaii

Software company making EDA tools for the IC semiconductor industry. We specialize in the layout verification stage where layout extraction and netlist comparison are our main thrusts.

Zeni EDA | 626-552-4155 | Pasadena, CA

Full custom analog mixed signal IC design software. Tools include schematic capture, SPICE Simulation, IC layout, physical verification, parasitic extraction and signal integrity.