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ASC Sunstone builds boards across the full range of complexity - from quickturn prototypes to long-lead, high-reliability production runs for aerospace and defense. Two facilities, one quality system, one team.
Mulino, OR - Sunstone Our Oregon facility is built for speed without compromise. Fast-turn standard and custom builds, online quoting, and the responsive customer experience Sunstone has been known for over fifty years. Whether you're spinning a prototype or running a production order, Mulino delivers consistent quality on your schedule. Certifications: ISO 9001, ITAR, IPC
West Chicago, IL - ASC Our Illinois facility handles the builds that demand more. Advanced stackups, tight tolerances, and complex constructions - UHDI, rigid-flex, RF/microwave, metal-backed, and high-layer-count production for aerospace, defense, and high-reliability applications.
Certifications: AS9100D, MIL-PRF-31032, MIL-PRF-55110, MIL-PRF-50884, ISO 13485, IATF 16949, ITAR, DFARS
That range matters when your design doesn't fit a single box. Whether you're spinning a first prototype or building flight-critical hardware, we have the facility, the process, and the certifications to build it right.
Explore the capability pages below to understand what each site supports and how to route your next build to the right location from the start.
Need boards fast? ASC Sunstone's quickturn service delivers prototype and production boards in as little as 24 hours, without compromising on quality or features.
From single-layer prototypes to complex multilayer boards, ASC Sunstone covers the full range of standard and advanced PCB designs, backed by ISO and UL certified manufacturing and fast online quoting.
UHDI uses a semi-additive process to deposit copper at micron-scale precision, far finer than traditional etching. The result: smaller boards, fewer layers, and tighter signal integrity.
Flex and rigid-flex boards combine flexible substrates with rigid sections, eliminating the connectors and cables between separate boards. The result: lighter, more reliable assemblies with fewer failure points.
RF and microwave design demands materials and tolerances that go well beyond standard FR-4. ASC Sunstone has the expertise to get it right.
Catching manufacturability issues early prevents costly respins. DFMplus, ASC Sunstone's free DFM tool, finds them before your design hits the floor.
Laser-cut openings transfer solder paste onto a bare board for every surface mount device. One squeegee pass applies it through the stencil.
A single fabrication flaw can waste your entire prototype build. ASC Sunstone catches those flaws first, so you can focus on your design.
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