Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

  • Chip Makers Weigh Benefits and Costs of Laser Marking Systems

Photonics Spectra
Dec 1998
Michael D. Wheeler, News Editor

In the fledgling days of the semiconductor industry, chip makers encoded serial numbers and dates on integrated circuit packages using conventional pad printed or ink-jet techniques. These methods offered users a high-contrast mark at a relatively affordable cost, but they also resulted in fumes, occasional smudging and the tedious task of refilling vast ink reservoirs.
As incidents of counterfeit chips surfaced, so did concerns over ink's permanence. This spurred the industry to look for alternatives, and by the early 1980s the photonics sector took its cue and rolled out the first laser marking systems.
Much has changed over the last tow decades. Now chip makers can choose sealed or transversely excited atmospheric pressure CO2 system. Solid-state technology arrived about 15 years ago -- first the flashlamp-pumped Nd:YAGs and, recently, the diode-pumped version. These new systems offer excellent beam quality and low maintenance, but both carry heftier price tags.

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!