If you’re still using conventional contactors for COC (Chip‑on‑Carrier) burn‑in, this artical will tell you why fishbone fixtures in CoC burn‑in systems are necessity for any reliability lab. What Exactly Is a COC Burn-in System, and Why Is It So Demanding? Before we dive into the fixture, let’s set the stage. A COC is a
The COC fishbone fixtures in Burn-in System, with its fishbone array-like design, integrates positioning slots, beryllium copper elastic contact springs, and thermally conductive trenches. It is a key high-value consumable in the production and testing of optical modules, primarily used for burn-in tests of optical chips. Its core function is to provide precise positioning, stable
Let me draw you a picture. You’ve just finished a run of high-power laser diodes. You send them to burn-inin testing — 24 hours at 85°C with a constant current — and when they come out, half of them have degraded. Not because the chips are bad, but because your socket killed them. Poor contact.
Metal stamping springback is a difficult problem for the automotive stamping parts.There is not a perfect method to deal with springback of stamping parts.After researching the stamping springback problem,we get following factors: Material Performance There are different strengths of automobile stamping parts. from ordinary plate to high strength plate, different plates have different yield strength.
Repeatedly plugging and unplugging the charging connector subjects the electric vehicle charging terminals to mechanical friction, arc erosion, and oxidation/corrosion, which easily leads to performance deterioration and unstable charging. To address these rigorous operating conditions, the national standard GB/T 20234.1-2023 explicitly mandates a mating durability of 10,000 cycles for charging connectors, establishing a fundamental quality
As new energy vehicle adoption rises, automotive electronic architecture is shifting from distributed designs to domain-centralized, central computing. Component density on BMS and ECU PCBs is increasing rapidly. In limited circuit board space, welding or screw fastening takes up space and creates reliability issues under tough conditions. Achieving dense, reliable electrical connections in minimal space
Terminals are the most basic connection units in the vehicle’s electrical system. They are also key nodes in the wiring harness. The contact resistance, insertion and extraction force, corrosion resistance, and dimensional accuracy of a single terminal directly determine the stability of the vehicle’s signal and power transmission. These factors are also key to the
In the safety system of new energy lithium batteries, thermal runaway prevention is crucial. While cell materials and battery pack protection are well-known, the “safety trio”—OSD, Fuse, and rupture discs—on the square aluminum battery cover creates an immediate, vital barrier for the cell. Each device has a distinct role, and together they intercept risks like
New energy power and energy storage batteries contain a small but essential component: the sealing aluminum pins. Hidden in the electrolyte injection hole of the battery cover, this sealing pins is the main barrier for battery sealing, safety, and performance stability. It directly affects the battery’s lifespan and operational safety. What are Sealing Aluminum Pins?
