barcode scanner in asp.net c# INTRODUCTION TO HIGH-DENSITY INTERCONNECTION (HDI) TECHNOLOGY in Software

Encoding QR Code in Software INTRODUCTION TO HIGH-DENSITY INTERCONNECTION (HDI) TECHNOLOGY

INTRODUCTION TO HIGH-DENSITY INTERCONNECTION (HDI) TECHNOLOGY
Recognize QR Code 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 generator for Software Control to generate, create QR Code ISO/IEC18004 image in Software applications.
FIGURE 22.5 Typical HDI design rules with corresponding dimensional symbols for IPC-2226 figures. Illustrated is an IPC Type III HDI structure for categories A, B, and C. (Source IPC-2226, Design Standards for HDI and Microvias. )
Scanning QR Code 2d Barcode In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Make Denso QR Bar Code In C#.NET
Using Barcode creator for VS .NET Control to generate, create QR Code JIS X 0510 image in VS .NET applications.
DESIGN
Printing QR Code In .NET
Using Barcode generator for ASP.NET Control to generate, create QR Code image in ASP.NET applications.
QR Code 2d Barcode Maker In .NET
Using Barcode generator for .NET Control to generate, create QR Code 2d barcode image in .NET framework applications.
HDI and microvias place a new burden on printed circuit design. The various IPC types impose significant changes in the multilayer stack-up from a conventional board. But additionally, microvias can be implemented in many different ways and with different design rules. This section presents just a few of the design issues.
Denso QR Bar Code Encoder In Visual Basic .NET
Using Barcode generation for VS .NET Control to generate, create Denso QR Bar Code image in VS .NET applications.
ECC200 Printer In None
Using Barcode maker for Software Control to generate, create ECC200 image in Software applications.
Multiple Layers of Microvia Holes For interconnecting IC substrates with hundreds of I/O terminals, a single layer of microvia holes may not be sufficient to satisfy interconnection requirements. Double, triple, or even quadruple microvia hole layers may be necessary whether the board is a motherboard or a chip package substrate. When microvia holes are made only between adjacent layers (see Fig. 22.6), all three microvia processes photovia, plasma via, and laser via can be used. However, when a design requires microvia holes that must connect beyond adjacent layers such as L1 and L3 (skipvia) laser via processing is the only practical option.
European Article Number 13 Generation In None
Using Barcode encoder for Software Control to generate, create EAN13 image in Software applications.
Bar Code Encoder In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
FIGURE 22.6
ANSI/AIM Code 128 Generation In None
Using Barcode generator for Software Control to generate, create Code128 image in Software applications.
UPC-A Supplement 2 Encoder In None
Using Barcode printer for Software Control to generate, create Universal Product Code version A image in Software applications.
Microvia connections beyond adjacent layers.
Paint EAN-8 In None
Using Barcode drawer for Software Control to generate, create EAN-8 Supplement 2 Add-On image in Software applications.
Creating UPC Symbol In VS .NET
Using Barcode drawer for ASP.NET Control to generate, create UPC Code image in ASP.NET applications.
PRINTED CIRCUITS HANDBOOK
Paint Matrix Barcode In Java
Using Barcode printer for Java Control to generate, create Matrix Barcode image in Java applications.
Code 128 Generator In VB.NET
Using Barcode creator for Visual Studio .NET Control to generate, create Code 128B image in .NET framework applications.
Design Tools Printed circuit design has become one of the most important functions in the electronic product realization process.6 The demands on printed circuit design keep mounting. The reasons for this increasing demand include the following:
Encode UPC-A Supplement 5 In Visual C#
Using Barcode printer for .NET framework Control to generate, create UPC-A image in Visual Studio .NET applications.
Decoding USS Code 39 In Visual C#
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in VS .NET applications.
To regain time for product schedules To lower the cost of fabrication and assembly To enable new area-array components, such as chip scale packages (CSPs), micro-BGA, and flip-chip interposers To decrease the time to market To improve electrical performance for high frequency and to reduce EMI
UPC A Maker In None
Using Barcode maker for Online Control to generate, create Universal Product Code version A image in Online applications.
Code 128 Code Set B Creator In None
Using Barcode generator for Online Control to generate, create Code 128 Code Set B image in Online applications.
Bringing the process back under control requires a methodology that involves planning the printed circuit layout process with predictive wiring density models. The other benefits include reducing printed circuit fabrication and assembly costs. 22.4.2.1 Required Features of HDI CAD Toolsets and Autorouters. A partial list of features that computer-aided design (CAD) tools require to design HDI boards includes the following:
Optimization of a mixed via by a router Autorouting of cost budget for mass via generation Buried or blind via control on the layer Via padstack control (landless) Staggered via control Pad within pad Blind via push/shove during manual routing Any angle routing Manufacturing process rules at all design phases Buried components Some of these features have already been discussed in previous chapters.
22.4.2.2 Autorouters. Autorouters have been a part of printed circuit design systems for many years. An autorouter will automatically place vias and traces on the printed circuit based on the schematic and part geometries. Elaborate configuration menus drive the appropriate placement of these features. A special autorouter is required for HDI structures, because many HDI processes employ mass via generation as used for SLC technologies. These processes produce all the vias simultaneously and at any desired diameter. Since the cost of vias is rather insignificant, the autorouter should have the capability of achieving a near-zero via cost. When the routing is done, a different but more optimized design results. 22.4.3 Trade-Off Analysis After a product has been partitioned, the circuit has been designed, and the components have been selected, the physical design must be planned with an eye toward achieving the lowest manufacturing cost while meeting all performance and operating boundary conditions. This is especially true for HDI designs. Conventional through-hole printed circuit design has not changed too much over the years. Finer geometries, more layers, and surface mounting have been added, but the conventional design process remains essentially the same. Microvias and HDI, however, introduce many changes to the design process and require new design rules
Copyright © OnBarcode.com . All rights reserved.