barcode scanner code in c#.net PHYSICAL CHARACTERISTICS OF THE PCB in Software

Drawer QR Code 2d barcode in Software PHYSICAL CHARACTERISTICS OF THE PCB

PHYSICAL CHARACTERISTICS OF THE PCB
QR Code Reader In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Generating QR-Code In None
Using Barcode printer for Software Control to generate, create QR Code image in Software applications.
dard panel. Therefore, designers need to choose finished PCB sizes with this in mind (assuming the size is negotiable). The pricing matrix in Table 13.4 is in price per panel based on the following:
Decode QR Code In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
QR Code Creation In Visual C#.NET
Using Barcode drawer for .NET framework Control to generate, create Quick Response Code image in .NET applications.
Solder mask over bare copper, silk screen one side only Standard multifunctional FR4 laminate 1-oz copper inner layers, 1 2-oz outer layer foil plated up to 1.5 oz nominal Thickness accuracy: 10% overall, 1.5 mil any dielectric layer No controlled impedance requirement or testing 1-mil minimum copper plating in holes No vias smaller than 13 mils Traces and spaces: 7 mil, 7 mil Standard delivery: (no acceleration premium) Fabrication site: Pacific Rim Fabricators No gold plating Tested to CAD netlist
QR Code 2d Barcode Drawer In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications.
Draw QR Code In .NET
Using Barcode creation for .NET framework Control to generate, create QR Code image in .NET framework applications.
Since PCB fabrication is based on standard panels, the cost of each PCB is affected by how much of each panel is used to form the PCBs built on it and the amount of the panel that is scrapped. Clearly, the more of each panel that is usable, the lower the average cost of each PCB will be. As one chooses the size and form factor of each PCB, attention should be paid to how many will fit onto a standard panel in order to minimize the scrap material created.
QR Code Creation In VB.NET
Using Barcode generator for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in Visual Studio .NET applications.
Draw Bar Code In None
Using Barcode drawer for Software Control to generate, create barcode image in Software applications.
One PCB vs. Multiple PCBs One way to keep individual PCB layer counts down is to divide the circuitry among several smaller, simpler PCBs. There is a hidden cost associated with doing this. The hidden cost is spread across several organizations, ranging from the design activity, through manufacturing, and into the sales and service organization. The costs are those associated with handling multiple assemblies, such as managing multiple designs and their documentation, managing the procurement, inventory, testing and stocking of multiple assemblies, and the cost of interconnecting the multiple assemblies. In almost all cases, these costs exceed any savings that might be realized by the creation of multiple assemblies.
Create UPC Symbol In None
Using Barcode drawer for Software Control to generate, create UPC Symbol image in Software applications.
Code39 Maker In None
Using Barcode drawer for Software Control to generate, create ANSI/AIM Code 39 image in Software applications.
This page intentionally left blank
Drawing UCC - 12 In None
Using Barcode creator for Software Control to generate, create EAN / UCC - 13 image in Software applications.
Creating Bar Code In None
Using Barcode creation for Software Control to generate, create barcode image in Software applications.
THE PCB DESIGN PROCESS
USPS POSTal Numeric Encoding Technique Barcode Generator In None
Using Barcode encoder for Software Control to generate, create Postnet 3 of 5 image in Software applications.
Generate UCC - 12 In None
Using Barcode generation for Excel Control to generate, create EAN / UCC - 13 image in Microsoft Excel applications.
Lee W. Ritchey
Bar Code Generator In None
Using Barcode generation for Microsoft Excel Control to generate, create barcode image in Office Excel applications.
Data Matrix 2d Barcode Printer In VB.NET
Using Barcode creation for Visual Studio .NET Control to generate, create DataMatrix image in .NET framework applications.
3Com Corp., Santa Clara, California
Barcode Generator In Java
Using Barcode generation for Java Control to generate, create bar code image in Java applications.
Drawing UPC Symbol In VS .NET
Using Barcode generation for VS .NET Control to generate, create UPC-A Supplement 5 image in Visual Studio .NET applications.
14.1 OBJECTIVE OF THE PCB DESIGN PROCESS
Encode Data Matrix ECC200 In C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create ECC200 image in .NET applications.
Code 128 Code Set B Decoder In Visual C#.NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET framework applications.
The objective of the PCB design process is to engineer a PCB, including all of its active circuits, that functions properly over all the normal variation in component values, component speeds, materials tolerances, temperature ranges, power supply voltage ranges, and manufacturing tolerances and to produce all of the documentation and data needed to fabricate, assemble, test, and troubleshoot the bare PCB and the PCB assembly. Doing less than this in any area exposes the manufacturer and user of the PCB assembly to excessive yield losses, excessively high manufacturing costs, and unstable performance. Achieving the objective involves carefully designing a process that matches the end product, selecting design tools with controls and analytical utilities, and selecting a materials system and components that match.
14.2 DESIGN PROCESSES
Figure 14.1 is a flowchart of the major steps in a complete PCB design process, beginning with specification of the desired end product and continuing through to archiving or storing away the design database in a form that permits subsequent design modifications or regeneration of documentation as necessary to support ongoing production. This process takes advantage of all the computer-based tools that have been developed to assure a right the first time design. The basic process is the same for either analog or digital PCBs. The differences in the design process for the two classes of PCBs center around the differences in complexity of these two types of circuits, as mentioned in Chap. 13.
14.2.1 The System Specification The design team begins a new design by creating a system specification. This is a list of the functions the design is to perform, the conditions under which it must operate, its cost targets, development schedule, development costs, repair protocols, technologies to be used, weight and size, and other requirements as are appropriate. A rough definition of each of these variables is necessary at the start to permit proper choices of materials, tools, and instrumentation. For example, a project may involve the design of a portable computer that must weigh less
Copyright © OnBarcode.com . All rights reserved.