一种马达控制电路板制备工艺
By using a functional surface partitioning fabrication process, and employing screen-printed carbon oil functional layers in conjunction with spacing, overlapping, or windowing of solder resist layers, the electrical performance stability and yield issues of motor control circuit boards with irregular structural layouts were resolved, resulting in improved conduction stability, wear resistance reliability, and boundary consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 珠海精毅电路有限公司
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing manufacturing process of motor control circuit boards, the coordination between the carbon oil layer and the solder mask layer and the edge protection are insufficient. As a result, the carbon oil edge is prone to lifting, chipping or cracking in the circuit board under irregular structure layout, which affects the stability of electrical performance and yield.
The process employs a functional area partitioning fabrication process, in which a carbon oil functional layer is formed by screen printing on the functional area, and then solder resist treatment is applied after pre-drying. The solder resist layer and the carbon oil functional layer are combined by spacing, overlapping, or opening to form an insulating protective part and a boundary limiting structure.
It improves the conductivity stability, wear resistance reliability and boundary forming consistency of the motor control circuit board, increases the batch processing yield, and reduces the risk of carbon oil edge lifting, edge chipping and loss of control at the boundary between functional and non-functional areas.
Smart Images
Figure CN122205763B_ABST
Abstract
Citation Information
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