In the series of articles analyzing the reasons for welding quality in the process of patch processing, we have made a certain analysis of the reasons for the voids caused by pcb coating in the process of patch processing.
the purpose of miniaturization of components can be satisfied. The specific three anti paint is mainly used in where, hundreds of small make up to explain it in detail.
The best way to learn about actual system testing for Chinese students is to visit PCBA processing plants where companies develop products with similar lifestyles and inspect the entire production line, from the circuit board to the shop floor to product
The usual PCB design current does not exceed 10 A, even 5 A. Especially in household, consumer electronics, usually the continuous working current on the PCB will not exceed 2 A.
Before the design begins, it is necessary to think and determine the design strategy, so as to guide the selection of components, process selection and cost control of circuit board production.
Before the design begins, it is necessary to think and determine the design strategy, so as to guide the selection of components, process selection and cost control of circuit board production.
If the signal in the circuit can reach the receiver with the required time sequence, duration and voltage amplitude, the circuit has better signal integrity. Conversely, when the signal does not respond properly, there is a signal integrity problem.
in addition to the pcba proofing efficiency and technical experience and other factors, so as a processing enterprise should be improved in technology.
An accurate procurement management planning economy can accurately predict and master the production and development plan of an enterprise, and enable Chinese enterprises to minimize the occupation of procurement funds on the premise of meeting their own
the prices of PCB board and components in the Chinese market are basically public information and transparent for enterprises on major network platforms, which can be referred to through comparative study.
PCB testing has become an indispensable part of the circuit board manufacturing process. It finds the problem in time, assists the staff to deal with it quickly, and ensures the high quality of PCB.
It is a kind of pin-free or short lead appearance assembly components (SMC/SMD, Chinese known as chip components) installed in the Printed Circuit Board (PCB) appearance or other substrate appearance, after reflow welding or immersion welding and other me