This design of a unique non contact chuck, was a part of a much larger scale design and engineering project of a wet processing machine for the semiconductor industry.
The client requested Vertex to design, engineer and produce a scalable new chuck that can hold the wafer from the bottom end and at the same time process the same side which the wafer is held from. We had strict instructions not to have any contact with the top side of the wafer, due to sensitive semiconductor design on that side, therefore the name “Non Contact Chuck”.
This unique design had to overcome and avoid collision of the wafer’s holding fingers with the process module while scanning the wafer above it. This resulted in holding fingers behaving like Millipede legs.
Challenges in this design were enormous.
The chuck had to spin 360 degrees, travel on the Z axis, pressurize the top side of the wafer with air to prevent any liquid from getting to the top side, as well as, pneumatically control and actuate each finger at the right time.
Great project to work on, great challenge and great results.
http://acne.gd/bacterial-acne-infection/ A number of individuals have no information concerning the immediate causes of acne infection. It has been assumed that puberty, oily skin, eating chocolates and overtime tension are the primary reasons of acne breakouts. These are the reasons behind acne breakouts development but they aren
In an effort to promote science, technology, engineering and mathematics (STEM) education, the U.S. Army announced today that it has named the 2010 eCYBERMISSION national first-place teams. Managed by the U.S. Army Research, Development and Engineering Command (RDECOM) at Aberdeen Proving Ground, Md., the eCYBERMISSION program awarded more than $1 million to students from across the nation and in Department of Defense Education Activity schools overseas.
To view Multimedia News Release, go to http://multivu.prnewswire.com/mnr/ecybermission/44116/
PSI, a leading international health organization, with programs in 66 countries, today officially launched Impact magazine to provide insight into today’s most pressing global health and development issues.
To view Multimedia News Release, go to http://multivu.prnewswire.com/mnr/psi/44689/
Provectus Pharmaceuticals, Inc. (OTC BB: PVCT, http://www.pvct.com), a development-stage oncology and dermatology biopharmaceutical company, has announced additional positive data from its Phase 2 clinical trial of PV-10 for metastatic melanoma. The data, on changes in visceral and nodal metastases following chemoablation of cutaneous melanoma lesions with PV-10, was presented by Dr.
To view Multimedia News Release, go to http://multivu.prnewswire.com/mnr/pvct/43978/
Ola. Greetings from Madrid, Spain proud host city of the international finals of the Volkswagen Junior Masters - the world’s premier youth soccer development tournament. The best under thirteen teams from 20 countries recently arrived here to compete for the cup.
We’re in Moscow to meet the winners of the Russian leg of the Volkswagen Junior Masters – an under thirteen soccer development tournament that takes place during every World Cup year.
Welcome to Dubai, a bustling seaport metropolis that is home to more than a
million people. The local finals of the Volkswagen Junior Masters recently took
place here. This unique soccer development showcase saw the best under
thirteen teams in the United Arab Emirates battling it out for a chance to play
in the world finals in Spain. Saif Mohammed Sultan Abdullah Sultan ASabaage
participated in the tournament.
Welcome to Zimbabwe. We’re in the nation’s capital, Harare. And this is Rufaro Stadium. The Zimbabwean finals of the Volkswagen Junior Masters recently took place here. The Volkswagen Junior Masters is a global football development tournament that culminates in May when teams from twenty countries will participate in the world finals, to be held at the famed Bernabeaú Stadium in Madrid, Spain. Zimbabwe’s national team failed to qualify for the upcoming FIFA World Cup in neighboring South Africa but hopes are high that Zimbabwe’s junior players will perform well in Spain.
Rapid urban growth in emerging nations has rarely been accompanied by foresight and planning. As economies expand, sucking more and more people into towns and cities in search of jobs and prosperity, the up-shot has too often been uncontrolled development, scant regard for building standards and an ugly urban sprawl.
To view Multimedia News Release, go to http://multivu.prnewswire.com/mnr/prne/abudhabidma/42410/
