PCBWay
Nov 25,2013
792
The Schematic of the Circuit Boards
Although there is no guarantee, a good layout starts with a good schematic. Be thoughtful and generous when drawing a schematic, and think about signal flow through the circuit. A schematic that has a...
PCBWay
Nov 25,2013
1173
Grounding of the Printed Circuit Boards
Ground is to study the potential of the system design. The first time starting from the conceptual design review, it should be made into a product. Important principles grounded: to maintain and isola...
PCBWay
Nov 22,2013
922
Several layers of PCB is the best?
Several layers of PCB is the best? A designer according to the complexity of the circuit to determine the number of PCB layers. Single-layer PCB Sometimes, we will create a simple single-layer P...
PCBWay
Nov 22,2013
1029
Analog circuit noise of the PCBs
Analog circuit noise is to limit the performance of the main factors. Noise is divided into the following categories: Conduction (Conducted Emissions) - analog circuits and other circuits connected ...
PCBWay
Nov 22,2013
1732
Power-Supply Bypassing of the PCBs
Bypassing the power supply at the amplifier’s supply terminals to minimize noise is a critical aspect of the PCB design process—both for high-speed op amps and any other high-speed circuitry. There ar...
PCBWay
Nov 22,2013
2039
Pin in Paste using Solder Preforms-PCBs
Pin-in-paste is the technique of intrusive soldering through-hole components to a circuit board using reflow soldering. Typically, solder paste can be printed and this will provide enough solder for ...
PCBWay
Nov 22,2013
967
Profitability Potential in Printed Circuit Board Assembly
The impetus for writing the Patty and the Professor series, in 2009, <posts here> <hardcopy book here> came from my observations that many assemblers were not very focused on productivit...
PCBWay
Nov 22,2013
1701
The Printed Circuit Board: More Important Now Than Ever
Folks, My interest was piqued by a recent article from the pen of good friend, Ray Rasmussen. In this piece, Ray reviews a presentation by Phil Plonski of Prismark Partners on a tear down analysis of...
PCBWay
Nov 22,2013
1701
Ink materials for printed circuit boards (PCBs)
DuPont Microcircuit Materials (MCM) has developed a broad and growing portfolio of CB Series screen printed ink materials for rigid and flexible printed circuit boards (PCBs). Current offerings inclu...
PCBWay
Nov 22,2013
996
circut board
Stands for "printed circuit board." A PCB is a thin board made of fiberglass, composite epoxy, or other laminate material. Conductive pathways are etched or "printed" onto board, connecting different ...
PCBWay
Nov 21,2013
1585
Single Sided Mixed Technology Reflow Process
A relatively new procedure has been developed to enable a single reflow operation to solder both surface mount and conventional through-hole components on the same board. This is particularly desirabl...
PCBWay
Nov 21,2013
4344
Mixed Technology PCB Assembly
There are still components that are not available in surface mount configuration (for example, some connectors and capacitors). Therefore, some assemblies have through-hole and surface mount component...
PCBWay
Nov 21,2013
8393
Double Sided PCB Assembly and Soldering
To achieve higher component density, the double-sided assembly technology has evolved. Double-sided circuit boards have copper tracking and component pads (land pattern) on the top and bottom side of...
PCBWay
Nov 21,2013
9413
Wave (Flow) Soldering Process
Since the introduction of automated PCB assembly and component lead soldering, wave soldering has been the mainstream method of applying solder automatically to the bottom side of PCBs. Wave soldering...
PCBWay
Nov 21,2013
2294
PCB assembly enters reflow process
Since the introduction of automated PCB assembly and component lead soldering, wave soldering has been the mainstream method of applying solder automatically to the bottom The PCB is passed though the...
PCBWay
Nov 21,2013
1207
Re-flow Soldering Process
Reflow soldering is the making of solder joints by (re) melting previously applied solder, usually in the form of a paste. A re-flow machine is a conveyorised oven that transports the pasted and compo...
PCBWay
Nov 21,2013
1234
Single Sided Surface Mount PCB Assembly
Single sided PCB assembly requires components to be assembled on only one side of the circuit board and is the least complex of PCB surface mount assembly processes. Double sided and variants of surfa...
PCBWay
Nov 21,2013
2056
Solder Pasting and Printing (surface mount process)
To achieve accurate positioning of components, surface mount assembly PCBs must be designed to ensure that component pad (land pattern) dimensions and layout are in accordance with good practice and t...
PCBWay
Nov 21,2013
2802
Component Placement onto the Printed Circuit Board
The best-expected manual insertion rate of through-hole components is 200 to 400 components per hour. Automation has been a prime objective for printed circuit board assemblers since the electronics i...
PCBWay
Nov 21,2013
803
Printed Circuit Board Designs
Fundamentally, there are two PCB design systems - through hole and surface mount. In through-hole process, components have connecting pins that are pushed through plated holes (vias) in the PCB and pr...
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 5 |
| 2 | Engineer | 2 |
| 3 | Engineer | 1 |
| 4 | sheng wang | 1 |
