What is MIL PRF 31032
In what is MIL PRF 31032, you will find out about military specifications for printed boards and circuit board necessities. Both product specification and performance requirements along with reference number management all to ensure your printed boards get printed and your flexible circuits stay flexible.
TOPICS IN THIS SOLUTION
To satisfy your circuit board demands for assembly and fabrication.
Spending for printed circuit boards consumes a significant percentage of the Department of Defense budget. Because every PCB purchased for Department of Defense needs must meet the MIL-STD-55110 or the MIL-PRF-31032 standard, fabricators must work through extensive auditing programs to verify that processes and products comply with the standards.
The MIL-55110 standard applies to rigid single-sided, double-sided, and multi-layer PCBs and the materials used for the production of the boards. Verification for the boards falls within the Qualified Products List product assurance program. The program uses a series of statistical sampling and basic test and inspection procedures to evaluate the boards. As an example, the assurance program may test oxidation levels on ready-for-solder surfaces.
The unified design environment within Altium Designer supports the MIL-55110 Qualified Products product assurance program. Each step of the PCB design process--from component selection, the Schematic Editor, Altium’s Content Vault and PCB Layout through Design Rule Checks, testing, and output documentation establishes the high quality approach that complies with the standard. Design teams can link component symbols to create unique circuits that include physical and logical connectivity.
Stored in a target Altium vault, a unified component represents components, connectors, devices, example designs, and template designs from schematic capture to PCB layout and to simulation.Component models extend across the design, mechanical, procurement, and manufacturing processes. Dedicated part choices map the design component and PCB footprint to real-world manufactured parts. As a result, dedicated part choices map the design component and PCB footprint to real-world manufactured parts.
The Schematic Editor Aligns the Design Process with the MIL-55110 Standard
Altium’s Content Vault and component libraries provide access to 100,000s of components, availability information, and real-time pricing. In turn, Altium’s intuitive menus ease the process of choosing objects while the combination of the Schematic Editor and different dialogs allows you to build high-quality images of the design.Altium’s unified environment combines access to those tools with the capability to seamlessly communicate with layout, simulation, and rules checking features.
The Schematic Editor allows design teams to capture separate schematic sheets and then build up the overall design with either a flat or hierarchical structure that establishes connectivity between the sheets. To speed the process, the flat design structure places all sheets derived from a large schematic sheet on the same level. Hierarchical structures allow a design team to easily follow signals across the sheets and interpret circuit functionality.
- Learn more about keeping track of schematic changes throughout the design process.
- Learn more about the first steps to making a schematic in Altium Designer
- Learn more about hierarchical schematic design.
With Altium’s unified approach, building the circuit design within Schematic Editor integrates design rules and the Design Rule Checker with the circuit simulation and analysis tools. As a result, a design extends across the design, mechanical, industrial design, procurement, and manufacturing processes. A design team can seamlessly move an electrically complete and accurate schematic along with design rules and constraints to PCB layout.
Compiled circuit designs allow viewing by all members of the team and verification that the design satisfies all electrical requirements. After testing the design, the design team can add design-level instructions to the schematic. The Schematic Editor provides templates for creating consistent, readable schematics that include component data and bookmarks.
Advanced Layer Stack Management Aligns with the MIL-55110 Standard
The MIL-55110 standard applies to single-sided, double-sided, and multilayer boards. To match the requirements of the MIL-55110 standard, Altium Designer provides the essential tools needed to create the stackup for standard rigid boards and multilayer board assemblies. Each of the layer stackup tools included within Altium Designer enable the production of compact electronic devices support of High-Density Interconnections (HDI).
Altium’s Layer Stack Manager allows designers to configure the layers of a PCB. While using the Layer Stack Manager, a design team can add, merge, remove, and configure the layer stacks. After the Layer Stack Manager defines the material and mechanical requirements of the layers, materials, thicknesses, and dielectric constants, Altium Designer uses the Layer Stack Table to graphically document the layer configurations.
Compliance with the MIL-55110 affects design team/fabricator relationships. With Altium Designer, design teams can define the layer properties while consulting with a fabricator. Layer properties extend across the entire layer and across all associated stacks. All mechanical layers appear after the physical layers. Members of a design team can use the Layer Stack Table documentation to lessen the complexity of stack structures.
The Layer Stack Manager integrates with impedance formula editor that works for rigid PCB designs. With the use of Altium Designer, members of a design team—working from any location--can define a single set of layers and then use any layer stack. While the set of layers includes all layers used in the PCB design, the layer stack includes the copper, dielectric, surface finish, and mask layers. With the layers configured, design teams can concentrate on planning component placement, tracking vias and holes, and the PCB layout that meets MIL-55110 compliance specifications.
- Learn more about managing component layer pairs
- Learn more about HDI multilayer PCB designing
- Learn more about PCB layer management as a design tool priority.
Ensure design stability with customizable compliance options
Altium’s PCB Editor provides the rules-driven environment needed to control the signal and power nets. As the design transitions from schematic to layout, the PCB Editor software checks to ensure that the changes comply with design rules. From there, Altium’s Interactive Routing command automatically selects the design rules that apply to the nets in your design and optimizes track and via routing.
The PCB Editor establishes the signal, power plane, mask and silkscreen layers needed for MIL-55110 compliance and prepares the design for fabrication. After determining the PCB layout, a design team can use Altium Designer’s 3D Layout Mode to view the PCB, zoom the view, rotate, and travel inside the board.
Altium’s Output Documentation Tools Surpass MIL-55110 Specifications
Altium Designer also provides all the technologies needed to produce output documentation for a MIL-55110 compliance printed circuit board. Available output types include Assembly Outputs such as assembly drawings, Documentation Outputs such as PDB prints, Fabrication Outputs such as drill drawings and Gerber files, Netlist Outputs, and Report Outputs such as the Bill of Materials and the Electrical Rules Check. With all the tools available in a unified environment, a design team can generate output in different file formats and map your design data to the Bill of Materials.
- Learn more about IPC compliance and how to achieve it within your board design phase.
- Learn more about the documentation necessary for successful manufacturing.
- Learn more about Altium Designer's automated project release function.
Set up your Gerber to say what you need it to say
Whether used for air, land, or sea applications, printed circuit boards used for military applications require a precise approach that ensures high quality performance under all conditions. Altium Designer delivers accuracy at all stages of the PCB design process and ensures that design teams and fabricators can comply with the MIL-55110 standard requirements. The unified design environment found within Altium Designer brings electrical and mechanical design elements together and allows design teams to work as cohesive units.