Altium Designer PCB Prototype Service Double Sided Prototype Circuit Board

Altium Designer PCB Prototype Service Double Sided Prototype Circuit Board

Lamination in PCB prototype service

INATIONMulti-layer printed circuit boards have trace layers inside the board. This is achieved by laminating a stack of materials in a press by applying pressure and heat for a period of time. This results in an inseparable one piece product. For example, a four-layer PCB can be fabricated by starting from a two-sided copper-clad laminate, etch the circuitry on both sides, then laminate to the top and bottom pre-preg and copper foil. It is then drilled, plated, and etched again to get traces on top and bottom layers.

The inner layers are given a complete machine inspection before lamination because mistakes cannot be corrected afterwards. Automatic optical inspection (AOI) machines compare an image of the board with the digital image generated from the original design data. Automated Optical Shaping (AOS) machines can then add missing copper or remove excess copper using a laser, reducing the number of PCBs that have to be discarded. PCB tracks can have a width of just 10 micrometers.

Solder resist application in PCB prototype service

Areas that should not be soldered may be covered with solder resist (solder mask). The solder mask is what gives PCBs their characteristic green color, although it is also available in several other colors, such as red, blue, purple, yellow, black and white. One of the most common solder resists used today is called "LPI" (liquid photoimageable solder mask).A photo-sensitive coating is applied to the surface of the PWB in PCB assembly, then exposed to light through the solder mask image film, and finally developed where the unexposed areas are washed away. Dry film solder mask is similar to the dry film used to image the PWB for plating or etching. After being laminated to the PWB surface it is imaged and developed as LPI. Once but no longer commonly used, because of its low accuracy and resolution, is to screen print epoxy ink. In addition to repelling solder, solder resist also provides protection from the environment to the copper that would otherwise be exposed.

PCB Prototype Service Capacities and Technical Specification

FAQ

CESGATE is a professional services firm mainly engaged in manufacturing and selling various types of printed circuit boards, focusing on providing a full range of PCB products and services to our customers.

Our company has invested heavily in the world's most advanced modern manufacturing, test equipment, and software, from the United States, Japan, Germany, Israel, Italy, and Taiwan. We make high-level backplanes, HDI PCBs, high-frequency PCBs, high TG PCBs, halogen-free PCBs, metal substrates, flex but rigid-flex PCBs, and other high-tech products. Our company has passed ISO-9001 quality system certification and all ISO-14001 environmental system certifications. Our products have attained UL approval by our Engineering Preventive Control Dept, 100% AOI online inspection, and electrical testing.

CESGATE strives to be a reliable and long-term PCBA supplier. Our average lead time has gone beyond many companies. Our company establishes a long-term stable relationship with the world's leading logistics companies, offering fast and high-quality services to customers worldwide. CESGATE has established good cooperation with thousands of clients in the world. Our customers always thumb up for what we have done.