Teflon high temperature cloth belt, Teflon high temperature mesh belt and Teflon tape are three extremely familiar words. In this bleak August, every order is really difficult. I always hold an inner gratitude for the customers who believe in me. At the same time, I am introspecting. I really do… Continue Reading The bleak August will be over, will there be rich in September?
1. Industrial production of epoxy resin in the world The first industrially valuable Bisphenol A epoxy resin of the world was manufactured in 1947 by Devoe-Raynolds of the United States. It opened up the technical history of chlorine-bisphenol A resin, and epoxy resin began industrial development; At the same time,… Continue Reading Review the industrial production process of epoxy resin/epoxy fiberglass board for 60 years
FR-4 is the largest amount of CCL, The most widely used product,Its quality not only affects the CCL plant itself, but also seriously affect the processing rate of PCB processing and assembly of electronic products after the pass rate.Therefore, to understand more of the FR-4 CCL common defects and solutions… Continue Reading Common defects and solutions of FR-4 ( CCL )
Circuit board plate blister is actually a bad board adhesion problem, and then extended is the surface quality of the board, which contains two aspects: Board cleanliness problem; Surface roughness (or surface energy) problem. All boards on the board surface foam problems can be summarized as the above reasons. The… Continue Reading How does the board plate blister?
Definition and classification of CCL CCL definition—also known as substrate The reinforcing material is impregnated with resin, coated with copper foil on one or both sides, and a plate-like material made by hot pressing is called copper clad laminate (CCL). It is the basic material to do PCB, often called… Continue Reading Copper-clad Laminate Technology Process
In the continuous development of information technology, electronic products, functions, types, structures are increasingly complex, to promote the PCB design gradually multi-level and high density, PCB design of the electromagnetic compatibility issues have also been valued and attention.Electromagnetic compatibility (EMC) design not only to ensure that all the PCB board… Continue Reading Analysis of Disturbance Factors in Design of Printed Circuit Board (PCB)
The mounting form of the electronic components on the PCB has been developed from pin insertion using through-holes to high-density surface mount technology, and bare chip mounting is evolving from wire-to-die mounting. As from the QFP to BGA, CSP as the representative of the plastic package, PCB also requires more… Continue Reading Laminated sheet processing technology with glass cloth prepreg
Printed circuit board (PCB) is the most basic part of electronic equipment, it is a “bridge” between a ariety of electronic components and the electrical connection With the rapid development of electronic technology, people given the function on the PCB is more and more powerful, components and printed circuit density… Continue Reading Discussion on Design of Electromagnetic Compatibility of Digital Circuit PCB
FR-4 practical significance FR-4 is a code for the class of flame resistant materials, which means that the resin material through the combustion state must be able to self-extinguish a material specifications, it is not a material name, but a material grade. Therefore,the current general circuit board used FR-4 grade… Continue Reading Analysis on commonly used PCB substrate performance – FR4
In the current society, a large number of electronic products are widely used in everyone’s daily work and life, so they need to ensure the reliability, and the vast majority of electronic systems through printed circuit board, must have a reasonable design schematic, correct printed circuit board, can fundamentally improve… Continue Reading Analysis on Key Points of PCB Design