Häufig gefragt
Fragen

Functional testing in the Electronics Manufacturing Services (EMS) industry involves verifying that a completed electronic assembly, such as a PCB, operates according to its design specifications. This test checks the functionality of the device under test (DUT) by simulating its operational environment.

OEM stands for Original Equipment Manufacturer, a company that designs and manufactures a product. CEM (Contract Electronics Manufacturer) is similar to EMS, providing manufacturing services to OEMs under contract. The term CEM is often used interchangeably with EMS, though EMS may offer a broader range of services, including design and after-sales support.

Clean the surfaces to be soldered. Apply flux to remove oxides and improve wetting. Heat the joint with a soldering iron. Apply solder directly to the joint, not the iron tip. Remove the iron and allow the joint to cool naturally.

Solder creates a secure and conductive connection between electronic components and the PCB, ensuring the circuit functions as intended by facilitating electrical continuity.

What are PCB layouts?

High frequency PCBs are designed to operate at frequencies typically above 1 GHz. They require specific materials and design considerations to minimize signal loss and maintain performance in applications like telecommunications and advanced computing.

To package a PCB, first clean and inspect it, then place it in an anti-static bag. Wrap it with bubble wrap or foam for shock absorption, and secure it in a sturdy box with cushioning materials. Finally, seal the box and label it with handling instructions and ESD warnings.

Ideally, EOL testing is performed on every product to ensure each unit meets quality standards. However, the extent and frequency can vary based on product complexity, production volume, and industry standards.

In screen printing, a stencil is used to block parts of the screen in the negative image of the design. Ink is forced through the open areas of the screen onto the printing surface, transferring the design.

The Environmental Stress Screening (ESS) process involves exposing a product to environmental stresses to identify potential defects or failures. It's a method used in manufacturing to ensure reliability by forcing latent defects to manifest under controlled conditions before the product reaches the customer.