Getting the vapors: The increasing use of lead-free solder has renewed...

Assembly;  February 1, 2002 ;     700+ words ......want to take a new look at an old standby: vapor phase soldering. Invented in 1973, vapor phase reflow is as old as surface mount assembly...reflow, those processes gradually supplanted vapor phase as the soldering methods of choice, especially...

A New Approach to Vapor Phase Reflow Soldering

SMT;  November 1, 2006 ;     700+ words ......has generated renewed interest in vapor phase reflow soldering for thermally challenging PCBAs. Although vapor phase soldering - also called condensation...process, and describes a new method of vapor phase soldering. The introduction of lead-fr...

Rolling contact testing of vapor phase lubricants--part I: Material...

Tribology Transactions;  July 1, 1997 ;     700+ words ......tests have been performed with four candidate vapor phase lubricants under rolling contact conditions...contain Fe at the bearing surface. KEY WORDS Vapor Phase Lubrication, Vapor Phase Lubricants, Ball Bearings INTRODUCTION The...

At Least 50 of Growth in the Optoelectronics Area is Currently Focussed on...

M2 Presswire;  July 4, 2007 ;     445 words ......Optoelectronics Area is Currently Focussed on Liquid-Phase Epitaxy(C)1994-2007 M2 COMMUNICATIONS...c61639) has announced the addition of Liquid Phase Epitaxy of Electronic, Optical and Optoelectronic Materials to their offering Liquid-Phase Epitaxy (LPE) is a technique used in...

California Inventors Develop Vapor Phase Etch Endpoint Detection Method

US Fed News Service, Including US State News;  March 16, 2007 ;     318 words ......method for detecting an endpoint in a vapor phase etch. According to the U.S. Patent...released by the Patent Office, said: "A vapor phase etchant is used to remove a material...chamber (or downstream thereof), as the vapor phase etchant passes from the etching chamber...

Vapor phase soldering expansion aids pc board reflow.

Assembly;  February 1, 1992 ;     385 words ......soldering and an old, batch-style vapor phase unit with a two-fluid design. The...and generally low yield for the vapor phase process. And since the batch unit...For more information about Centech vapor phase soldering equipment.

Presintering effects on ground-based and microgravity liquid phase...

Metallurgical and Materials Transactions;  August 1, 2001 ;     700+ words ......heavy alloys are an ideal system for liquid phase sintering studies. The sintering behavior...condition effects on the subsequent liquid phase sintering densification and distortion...elimination of pores. I. INTRODUCTION LIQUID PHASE sintering is a common process for the...

Vapor phase lubrication using a thioether

Lubrication Engineering;  March 1, 1997 ;     430 words ......possible solution may be the use of vapor phase lubrication, a method whereby an organic...conventional solid lubricants. Previous vapor phase lubrication studies have employed organic...problems remained unsolved. For instance, vapor phase lubrication worked only in a narrow...

Japanese Inventor Develops Vapor Phase Deposition Apparatus

US Fed News Service, Including US State News;  October 24, 2008 ;     314 words ......compound film on the wafer by using a vapor phase deposition apparatus, including: forming...film on the wafer in an interior of the vapor phase deposition apparatus 100 by introducing...formed thereon from the interior of the vapor phase deposition apparatus 100; introducing...

New York Inventors Develop Vapor-Phase Digester

US Fed News Service, Including US State News;  December 1, 2008 ;     286 words ......Bolton Landing, N.Y., have developed vapor-phase digesters for cellulosic fiber. According...method for adding cooking liquor into a vapor phase continuous digester for producing chemical...to an inverted top separator in a top vapor phase section of the digester; distributing...

Rolling contact testing of vapor phase lubricants--part III: Surface...

Tribology Transactions;  January 1, 1999 ;     700+ words ......characterize bearing surfaces lubricated from the vapor phase. Results are presented for surface films...proposed based on the results. KEY WORDS Vapor Phase Lubrication; Lubricants, Vapor Phase Lubricants; Surface Analytical Techniques...

Lead-free: Using Vapor Phase Reflow in Lead-free Processing

SMT;  April 1, 2005 ;     700+ words ...DURING LEAD-FREE PROCESSING, VAPOR PHASE REFLOW OFFERS THE OPTION TO ELIMINATE...unique systems for rapid changeover. Vapor phase equipment was selected because of its...components at higher peak temperatures. Vapor phase offers the option to eliminate the variable...

Growth of Quantum-Well Heterostructures by Liquid Phase Epitaxy

Critical Reviews in Solid State and Materials Sciences;  January 1, 2006 ;     700+ words ......and used to grow ultra-thin layers by Liquid Phase Epitaxy. Some of these approaches have...Chemical Vapor Deposition. Keywords Liquid Phase Epitaxy, III-V semiconductors, low-dimensional...INTRODUCTION Starting in the 1970s, the Liquid Phase Epitaxy (LPE) technique became the main...

Japanese Inventors Develop Catalytic Vapor Phase Oxidation Process

US Fed News Service, Including US State News;  October 19, 2006 ;     340 words ......have developed a process for catalytic vapor phase oxidation. An abstract of the invention...invention provides a process for catalytic vapor phase oxidation which prevents runaway reaction...propylene or isobutylene by the catalytic vapor phase oxidation process using a ...

Rolling contact testing of vapor phase lubricants--part II: System...

Tribology Transactions;  July 1, 1997 ;     700+ words ......affecting bearing friction and wear. KEY WORDS Vapor Phase Lubrication, Vapor Phase Lubricants, Ball Bearings, High Temperatures INTRODUCTION An important aspect in developing vapor phase lubrication technology will be identifying...