Substrate material FR4 is quite commonly used for creating normal and complex PCB designs, while polyamide material is used for high-speed RF capability designs. Even assembler capability is important for getting an overall picture of the DFA. These standards refer to the cost and efficiency of that product and offer minimum risk, clarity and simplification. So, besides having knowledge related to the positioning of hundreds and thousands of components and traces that meet physical and electrical requirements, a PCB designer must also have good knowledge of the manufacturing process.Ī PCB designer has to follow the standards related to Design for assembly (DFA) while designing a PCB. Worse, it may end up being useless and whose outcome does not correlate well with real-world scenarios. A perfectly developed PCB Design is always a key to success in the manufacturing process while a poorly designed PCB leads to wastage of time and effort, rework and product failure. This design has to transform well into a physical form for the desired electric circuit to take shape. Designing a complex circuit starts with the process of investment, identifying product development challenges and design life cycle, and considering the return of investment.ĭesigning a complex circuit is one aspect of the challenge, whereas transforming the circuit design into a PCB Design is another. Solutions for various problems and demands need to identify basic requirements of circuit design. Designers have to simply identify the input and the required output. Other applications may also include entertainment, defence, communications, medical, automotive, automation and so on, which involves logic, memory, control and decision making. And so this would be negative 90 degrees, definitely feel good about that.The process of circuit design can range from developing a small toy to a large space station. And this looks like a right angle, definitely more like a rightĪngle than a 60-degree angle. And once again, we are moving clockwise, so it's a negative rotation. This is where D is, and this is where D-prime is. Point and feel good that that also meets that negative 90 degrees. This looks like a right angle, so I feel good about We are going clockwise, so it's going to be a negative rotation. Too close to, I'll use black, so we're going from B toī-prime right over here. Let me do a new color here, just 'cause this color is Much did I have to rotate it? I could do B to B-prime, although this might beĪ little bit too close. I can take some initial pointĪnd then look at its image and think about, well, how I don't have a coordinate plane here, but it's the same notion. Well, I'm gonna tackle this the same way. So once again, pause this video, and see if you can figure it out. So we are told quadrilateral A-prime, B-prime, C-prime,ĭ-prime, in red here, is the image of quadrilateralĪBCD, in blue here, under rotation about point Q. So just looking at A toĪ-prime makes me feel good that this was a 60-degree rotation. And if you do that with any of the points, you would see a similar thing. Another way to thinkĪbout is that 60 degrees is 1/3 of 180 degrees, which this also looks Like 2/3 of a right angle, so I'll go with 60 degrees. One, 60 degrees wouldīe 2/3 of a right angle, while 30 degrees wouldīe 1/3 of a right angle. This 30 degrees or 60 degrees? And there's a bunch of ways The counterclockwise direction, so it's going to have a positive angle. And where does it get rotated to? Well, it gets rotated to right over here. Remember we're rotating about the origin. Points have to be rotated to go from A to A-prime, or B to B-prime, or from C to C-prime? So let's just start with A. So I'm just gonna think about how did each of these So like always, pause this video, see if you can figure it out. We're told that triangle A-prime, B-prime, C-prime, so that's this red triangle over here, is the image of triangle ABC, so that's this blue triangle here, under rotation about the origin, so we're rotating about the origin here.
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