Quality & Reliability

IMRA has pioneered femtosecond laser production by demonstrating the quality necessary to bring femtosecond fiber laser technology into manufacturing to serve industrial customers. Today, IMRA has unparalleled manufacturing capability of high-quality femtosecond fiber laser products. This was an important milestone on IMRA’s business path. IMRA’s manufacturing and quality control are benchmarked to the automotive and medical industries, leveraging the automotive expertise of its parent company, AISIN SEIKI Co., Ltd., while incorporating the experience of providing sophisticated laser products to clients in the medical equipment industry and semiconductor industry. In accordance with IMRA’s dedicated customer support in delivering products with minimum disruption, IMRA lasers are manufactured at redundant production sites in Ann Arbor, MI and Kariya, Japan and are distributed worldwide by sales forces based at each location.

Performance and Reliability Testing

IMRA lasers meet stringent safety and regulatory standards. We have products listed with various product testing agencies including ETL and UL. All of our products have been registered with the Center for Devices and Radiological Health (CDRH) and meet 21CFR1040 as applicable for laser safety. Lasers sold in the European Union are CE marked and meet the requirements of IEC61010-1, IEC 61326-1 and IEC68025-1 for electrical safety, EMI/EMC and laser safety.

HALT/HASS 

High quality and reliability of each IMRA laser is ensured by employing techniques such as highly accelerated life testing (HALT) during the product design phase.  Highly accelerated stress screening (HASS) is applied during the manufacturing process to components, modules and every completed laser.

HALT HASS

The purpose of HALT is to expose problems early in the design that may not normally occur during normal life testing. The product is subjected to increasing levels of stress until failure occurs. Changes are made in the design or process to prevent the failure, and then the product is retested.   This is an iterative process that increases the stress well beyond what is expected to be seen in the field in order to quickly find the weak links with a minimum number of test units.

Once these stress levels have been established by HALT, a HASS program can be put into place. The purpose of HASS is to apply a level of stress during manufacturing that will expose and detect any latent faults that may present themselves.  The HASS process first applies a level of stress beyond the operating limits but below the limits for destruction identified by HALT.  This test is intended to precipitate latent faults while not damaging any normal items. After this test, an operational test is performed at levels exceeding the product specification limits.  This operational test will detect any latent faults that were precipitated previously.

IMRA applies these techniques at the component, module, and system level.  Stresses include temperature, humidity, shock and vibration. For electronic items additional stresses, such as voltage or current load are applied during the manufacturing process.

The HALT/HASS program combines the benefits of a proven reliable design as well as eliminating items during manufacturing that are marginal or may contain latent faults.  This ensures that products shipped to our customers can be expected to provide high quality and reliable performance.

Below is an example of our FCPA shock test to ensure mechanical safety and reliability for mechanical shock that may be experienced when the laser is transported and handled by the customer.

FCPA Shock Test Video