What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Golden Altos

Name: Golden Altos
Address: 44061 Old Warm Springs Boulevard, Fremont, CA, 94538, US
Telephone: (408) 956-1010
Price range: $

Call Directions Website Contact the business

Serving the semiconductor, military and aerospace industries since 1984.

10/16/2026

As part of Fremont Manufacturing Week, we welcomed engineering students from Ohlone College and San José State University to our facility.

Thank you to the City of Fremont for organizing these tours. Onshore manufacturing needs engineers who see the whole system, and some of those future engineers just walked our floor.

📍 Fremont, CA
🔗 https://goldenaltos.com/us-based-hermetic-assembly/

10/02/2026

Happy National Manufacturing Day!

Today we celebrate the men and women who design, build, and test the microelectronics that power our nation's defense, aerospace, and space systems.

From wafer saw to final test, every device that leaves our Fremont, California facility reflects decades of onshore manufacturing expertise and a commitment to quality that never wavers.

Thank you to our team for the skill and dedication you bring to work every day.

09/30/2026

Early life failures don't announce themselves; they show up when it's too late.

Burn-In testing applies controlled elevated temperature and voltage stress to w**d out marginal devices before they ever reach deployment, catching infant mortality failures that standard testing can miss.

At Golden Altos, our Burn-In capabilities support MIL/Aero and other high-reliability programs, giving you confidence that every device performs consistently when it matters most.

Learn more: https://goldenaltos.com/us-based-hermetic-assembly/

09/25/2026

Extreme temperature swings can expose weaknesses standard testing might miss.

Thermal Shock testing rapidly cycles devices between temperature extremes, stressing seals, bonds, and materials to reveal defects before they reach the field. It's a critical step in validating a package's ability to withstand real-world environmental extremes.

At Golden Altos, Thermal Shock testing is part of our MIL-STD-883 compliant qualification process, helping ensure reliability for aerospace, defense, and other mission-critical programs.

Learn more about our capabilities: https://goldenaltos.com/us-based-hermetic-assembly/

09/18/2026

What factors have the biggest impact on wafer dicing quality?

Wafer material, thickness, street width and layout, and die geometry all influence how a wafer responds during the dicing process. These considerations help decide the type of blade required and cutting conditions necessary to ensure there is no chipping and uniform die quality.

At Golden Altos, each wafer dicing project is evaluated based on its specific design and material requirements before processing begins.

Learn more in our latest Wafer Saw FAQ:
https://goldenaltos.com/faq/

09/07/2026

Today we celebrate the Golden Altos team and all those whose expertise and dedication strengthen American industry.

Your precision craftsmanship and commitment to excellence make mission-critical manufacturing possible.

To our GA family and workers everywhere, thank you for your skill, professionalism, and unwavering dedication. Enjoy this day of recognition.

09/01/2026

What do ISO 9001 and QML certification actually mean for your program?

ISO 9001 establishes a documented, audited quality management system covering everything from process control to corrective action, giving customers confidence that our operations are consistent and repeatable.

QML (Qualified Manufacturers List) status, awarded under MIL-PRF-38535, means Golden Altos has demonstrated the process controls and reliability data required to manufacture and qualify microcircuits for military and aerospace use.

Together, these certifications are the foundation of the quality system behind every device we assemble and test.

Learn more about our certifications: https://goldenaltos.com/us-based-hermetic-assembly/?utm_source=facebook

08/07/2026

Gold wire on aluminum bond pads is a common wire-bonding combination, but prolonged exposure to elevated temperatures can create reliability concerns at the interface.

Over time, gold and aluminum can react to form intermetallic compounds, including the brittle, purple-colored AuAl₂ commonly known as “purple plague.”

The concern is not always visible during initial inspection. A bond may pass electrical and mechanical testing after assembly, then degrade during extended thermal exposure or repeated temperature cycling.

At Golden Altos, we evaluate bond-pad metallization, wire compatibility, and sealing methods to catch these risks before assembly begins, because long-term reliability begins with selecting the right materials.

07/31/2026

How is the right sealing method selected for a semiconductor device?

The appropriate sealing method depends on several factors, including package construction, material compatibility, operating environment, hermeticity requirements, temperature limits, and the device’s intended service life.

Methods such as seam sealing, projection welding, solder sealing, glass-frit sealing, and epoxy sealing each offer different levels of environmental and mechanical protection. Selecting the right process helps protect the die, wire bonds, and internal circuitry while meeting the application’s performance and reliability requirements.

Discover more semiconductor packaging insights in our FAQ:
https://goldenaltos.com/faq/

07/17/2026

Reliability doesn't start at deployment. It's built into every step of the process.

For aerospace and defense semiconductor programs, that means controlled assembly processes, material traceability, supply chain visibility, and trusted manufacturing partners, from the very beginning.

As programs place greater emphasis on domestic capability and supply chain security, U.S.-based semiconductor packaging and test support play an increasingly critical role in reducing risk.

At Golden Altos, we support these requirements with U.S.-based semiconductor assembly, packaging, and test services, providing the process visibility needed for demanding aerospace and defense applications, where every process step matters.

Learn more about our aerospace and defense semiconductor assembly and test support: https://goldenaltos.com/us-based-hermetic-assembly/

Address

44061 Old Warm Springs Boulevard
Fremont, CA
94538

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

(408) 956-1010

Website

http://www.goldenaltos.com/

Alerts

Be the first to know and let us send you an email when Golden Altos posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Golden Altos:

Want your business to be the top-listed engineering company in Fremont?