Diversified Systems, Inc - View Archived Newsletters

November 2001
Volume 1, Number 1, November 2001

Controlled Impedance on the Speedway November 2001

An introduction to impedance, including an extended speedway metaphor, examples of devices with controlled impedance, and stripline impedance calculations.

Cleanliness Updated November 2001

This article focuses on the influence design changes have on cleanliness specifications, and discusses configurations and techniques for maintaining top-notch cleanliness standards.

Surface Finish Technologies November 2001

The lead-free or "green" movement is pushing PCB manufacturers in new surface finish directions. What are some of the factors manufacturers must consider when evaluating surface finish alternatives? Solderability, shelf life, handling, and other factors are discussed in this article.

Test Strategies: In-circuit Tests and the Flying Probe November 2001

Know how in-circuit tests compare to flying probe testers when making decisions regarding your test strategy. Look for pros and cons and comparitive information in this article.

Interesting Times in the PCB Industry November 2001

dsi President, Stanley Bentley, discusses the challenges currently faced by the PCB industry, and dsi's formula for success.

April 2002
Volume 2, Number 2,, April 2002

Cleanliness with OA Flux April 2002

Discusses the benefits and issues assemblers should consider when choosing a water-soluble flux. Includes cleaning techniques for mixed mode assemblies, surface mount assembles, and deionization guidelines and suggestions.

Test Strategies for Improving Yield April 2002

This article explains how modifications to each step in the circuit board manufacturing process–Production, Testing, Repair, and Final Assembly–can improve your ability to produce high yields and ensure good test strategies.

Certifications: TL 9000 April 2002

A different PCB industry certification is reviewed in every issue of our newsletter. Short and sweet–this article gives a brief overview of the TL 9000 certification requirements, objectives, and how dsi strives to maintain the TL 9000 degree of excellence.

Impedance Design Versus Manufacturability April 2002

Using a comparative example of a balanced stripline design and an unbalanced stripline design, this article emphasizes the importance of clearly defining and accounting for design and manufacturing elements early in the development process.

Average = Auction April 2002

How did operating strategies affect your company in the aftermath of September 11? dsi President, Stanley Bentley, explains the importance of a flexible and well-designed manufacturing process to properly manage growth and smooth out a decline.

SMT Process Capability for Small Lots April 2002

Details are provided in this data-driven article with test patterns, solder evaluation criteria, solder paste guidelines, and processing procedure information contrasting the difference between the high-mix and volume assembly environment.

November 2001 Volume 1, Number 1, November 2001
Controlled Impedance on the Speedway	November 2001
An introduction to impedance, including an extended speedway metaphor, examples of devices with controlled impedance, and stripline impedance calculations.
Cleanliness Updated	November 2001
This article focuses on the influence design changes have on cleanliness specifications, and discusses configurations and techniques for maintaining top-notch cleanliness standards.
Surface Finish Technologies	November 2001
The lead-free or "green" movement is pushing PCB manufacturers in new surface finish directions. What are some of the factors manufacturers must consider when evaluating surface finish alternatives? Solderability, shelf life, handling, and other factors are discussed in this article.
Test Strategies: In-circuit Tests and the Flying Probe	November 2001
Know how in-circuit tests compare to flying probe testers when making decisions regarding your test strategy. Look for pros and cons and comparitive information in this article.
Interesting Times in the PCB Industry	November 2001
dsi President, Stanley Bentley, discusses the challenges currently faced by the PCB industry, and dsi's formula for success.
April 2002 Volume 2, Number 2,, April 2002
Cleanliness with OA Flux	April 2002
Discusses the benefits and issues assemblers should consider when choosing a water-soluble flux. Includes cleaning techniques for mixed mode assemblies, surface mount assembles, and deionization guidelines and suggestions.
Test Strategies for Improving Yield	April 2002
This article explains how modifications to each step in the circuit board manufacturing process–Production, Testing, Repair, and Final Assembly–can improve your ability to produce high yields and ensure good test strategies.
Certifications: TL 9000	April 2002
A different PCB industry certification is reviewed in every issue of our newsletter. Short and sweet–this article gives a brief overview of the TL 9000 certification requirements, objectives, and how dsi strives to maintain the TL 9000 degree of excellence.
Impedance Design Versus Manufacturability	April 2002
Using a comparative example of a balanced stripline design and an unbalanced stripline design, this article emphasizes the importance of clearly defining and accounting for design and manufacturing elements early in the development process.
Average = Auction	April 2002
How did operating strategies affect your company in the aftermath of September 11? dsi President, Stanley Bentley, explains the importance of a flexible and well-designed manufacturing process to properly manage growth and smooth out a decline.
SMT Process Capability for Small Lots	April 2002
Details are provided in this data-driven article with test patterns, solder evaluation criteria, solder paste guidelines, and processing procedure information contrasting the difference between the high-mix and volume assembly environment.