Simon Mugo
Aug 15,2023
Clipper Circuits Part 2: Negative Clipper Circuits
IntroductionPart one of the Clipper Circuits briefed us on the two types of clipper circuits: positive and negative clipper circuits, and we dwelt deeply into the positive clipper circuits worki...
Simon Mugo
Aug 03,2023
Clipper Circuits Part 1
In power electronics, engineers sometime would like to reject part of the specified wave while allowing part of it to pass. This action requires the design of a special circuit known as a clipper circ...
Engineer
Jan 23,2023
Basic Things For Generating High-Speed Printed Circuit Board
As the world is upgrading at a very fast rate, every field is producing a faster product which is the reason for embedded software development. Speed is inversely proportional to the size in terms of ...
PCBWay
Oct 17,2022
FQC and Packaging | Multi-layer PCB Manufacturing Process - 16
Final Quality ControlFQC, short for final quality control, is the comprehensive and final inspection of printed circuit boards before shipping to ensure that the boards meet the specifications. Althou...
PCBWay
Oct 07,2022
Electrical Test | Multi-layer PCB Manufacturing Process - 15
After all the manufacturing processes of the circuit board have been completed, the electrical test is carried out to check the board for open circuits and short circuits. The two most commonly used t...
PCBWay
Sep 30,2022
Profile | Multi-layer PCB Manufacturing Process - 14
The process of PCB profile is to cut the production panel into specific sizes and shapes based on the customer's design requirements. To facilitate PCB assembly, the boards can be profiled in individu...
PCBWay
Sep 23,2022
Surface Finish | Multi-layer PCB Manufacturing Process - 13
Bare copper of PCB is easily oxidized by moisture when exposed to air, and the resulting oxide layer of copper has a great impact on the soldering, which may lead to cold soldering and even cause the ...
PCBWay
Sep 19,2022
Legend Printing | Multi-layer PCB Manufacturing Process - 12
Legend printing ,also known as Silkscreen, is a process of printing informational texts or patterns on the surface of the board. Legend information includes component reference designators, switch set...
PCBWay
Sep 15,2022
PCB Surface Finishes
Bare copper has good solderability, but it is easily oxidized by moisture when exposed to air. The oxide layer of copper has a great impact on the soldering. It may lead to cold soldering and even cau...
PCBWay
Sep 09,2022
Soldermask | Multi-layer PCB Manufacturing Process - 11
As a protective layer, the solder mask layer is covered on the traces and substrates that do not need to be soldered to prevent short circuits during soldering. At the same time, it serves to provide ...
PCBWay
Sep 02,2022
Automatic Optical Inspection | Multi-layer PCB Manufacturing Process - 10
AOI - Automatic Optical InspectionDuring the etching process, the etching method, the etching rate, the types and pH value of the etchants, or other factors directly affect the quality of the circuits...
PCBWay
Aug 26,2022
Etching | Multi-layer PCB Manufacturing Process – 09
In the previous step, the copper surface is covered with a layer of tin as an etching resist. Now we need to remove the unwanted copper from the surface to obtain the final desired circuits. This proc...
PCBWay
Aug 19,2022
Pattern Plating | Multi-layer PCB Manufacturing Process - 08
After developing, the copper thickness of the exposed circuits needs to be increased by a secondary copper plating, namely pattern plating. The purpose is to make the hole copper and surface copper of...
PCBWay
Aug 15,2022
Outer Layer | Multi-layer PCB Manufacturing Process - 07
In the previous steps, we have completed the creation of all the inner layer circuits and the required holes (Through/Buried/Blind holes). Next, we have to enter the outer layer imaging process of the...
PCBWay
Aug 08,2022
PCB Plating Process | Multi-layer PCB Manufacturing Process - 06
The hole walls after drilling are composed of non-conductive epoxy resin and fiberglass board. In order to connect circuits between different layers, it is necessary to metalize the hole walls through...
PCBWay
Aug 01,2022
Drilling | Multi-layer PCB Manufacturing Process - 05
To make the circuit of each layer connected, the boards need to go through the drilling process to make the corresponding holes according to the specifications in the drill files. For single and doubl...
PCBWay
Jul 22,2022
Lamination | Multi-layer PCB Manufacturing Process - 04
Prior to lamination, the surface of inner image layer needs to go through an oxide process (brown oxide or black oxide treatment) to roughen and passivate the copper surface, increase the interaction ...
PCBWay
Jul 19,2022
Inner Layer | Multi-layer PCB Manufacturing Process - 03
Surface Pre-TreatmentThe copper sheet after cutting has oxides, grease and other impurities attached to the surface, which firstly needs to be pretreated. The main purpose of pretreatment is to remove...
PCBWay
Jul 11,2022
Board Cutting | Multi-layer PCB Manufacturing Process - 02
Planned FeedingAs PCB gets unavoidably scrapped in the actual production process, the factory needs to add an additional proportion of materials to ensure the required quantity of good boards. The add...
PCBWay
Jul 07,2022
Pre-engineering | Multi-layer PCB Production Process 01
All PCB orders need to go through the engineering department before being scheduled for production. Now let's explore what the engineering department does to ensure the smooth production. Checkin...
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