PCA has been manufacturing and selling high-grade silicon wafers for almost half a century. We offer silicon wafers of any diameter (and now, ultra-flat 400mm diameter wafers) in our modern facility located in the heart of Silicon Valley. All of our wafers are produced precisely to SEMI standards or unique specifications. Our technicians even created the first wax-free method of silicon wafer polishing to obtain ultra-flatness at a very low cost during manufacture.
As one of the leading silicon wafer suppliers, Polishing Corporation of America has been creating the future from the very beginnings of the semiconductor industry. We understand that wafer specifications for each semiconductor design are unique, and we provide exceptional customer service. Our turnaround rate is typically just one day, and we ship to companies and engineers around the world. Contact us to learn about the variety of custom thin silicon wafers we can produce for your needs.
Reclaim Services
Cost saving can be achieved by reclaiming all your reject wafers several times. In 1974 we developed a process for reclaiming wafers. We have the capacity to supply several thousand wafers per work day. Our fast turnaround is usually one day. We ship worldwide. Give us the opportunity to demonstrate what we can do for cost containment and centralizing inventory control.
We can help you meet your monthly needs It’s convenient and cost effective for us to handle your reclaim wafer inventory by our computerized management systems. We also provide technical solutions for customers’ special requirements.
Out typical wafer strip and reclaim procedures are:
Step 1: Receiving
PCA pick up wafers from customers.
Step 2: Incoming Inspection
PCA counts wafers, a report of “Wafer conditions before Process” is sent.
Step 3: Presort
Wafers are sorted for film removal.
Stripping schedules are designed for multilayered wafers.
Wafers are sorted into thickness groups.
Step 4: Strip & Etch
Chemical processing removes all existing patterns and films.
Step 5: In Process Quality Assurance
Wafers are inspected and sorted.
Step 6: Polishing
We use state-of-art equipment to polish wafers with a prime test wafer surface. We insure surface specs. Only a few microns are removed by our low removal polishing technology.
Step 7: SC1/SC2 Clean Spin/Rinse/Dry
Wafers are cleaned by SC1 or SC2 process. Particles are removed.
Step 8: Visual Inspection
100% Visual inspect wafers.
Step 9: Final Inspection
Inspect wafers by KLA 6400 to insure particle count per specification.
Step 10: Final Quality Assurance
Sort wafers.
Provide specified readouts.
Wafers are inspected, vacuum packed and delivered, often in the same work day.
Contact us to learn more about the reclaim services we provide to clients throughout the world.
Silicon Wafer Dicing & More
Since the founding of PCA in 1969, our facility has been offering high-precision silicon wafer dicing as well as dicing for other hard materials including germanium, glass, quartz, and ceramics. Wafer dicing is the process of sawing a wafer into its respective parts, called die. Over our long history as a recognized pioneer in dicing, our technicians have developed advanced proprietary methods of diamond technology, laser cutting, and ultrasonic cutting of all sizes.
As one of the leading semiconductor wafer manufacturers, our pick-and-place technology is of the most modern in the industry. You can order ultra-clean dice directly in your process using your preferred packaging. The turnaround rate for our wafer dicing services is typically just one day, and we ship to companies around the world from our factory located in the heart of Silicon Valley. Contact us to learn more about the variety of wafer dicing services we offer.
Dicing Services Blocks Dicing Services Wafer
Our pick and place technology is the most modern in the industry. Order ultra-clean dice directly in your process using your preferred packaging. We offer fast shipping to all parts of the globe from our factory in the heart of Silicon Valley.
Thin Films Deposition Services
Thin Films Tech
At Polishing Corporation of America, we provide thin film deposition services such as thermal oxide wafers, Stoichiometric LPCVD, Low stress LPCVD, sputtered films, and evaporated films of various metals deposited to close tolerance thickness.
Metal Deposition: Sputtering & Evaporation (Diameter up to 12 inches)
Thermal Oxidation Wet, Dry +/-5%
Backside Oxidation Removal
Silicon Nitride
Stoichiometric LPCVD Nitride
Low stress LPCVD Nitride
Super Low Stress LPCVD Nitride
Our thin film disposition services occur through physical transfer of material (i.e., thermal evaporation and sputtering) from the source to the substrate. The chemical composition of deposited material is not altered in the process.
At PCA, we’re committed to your unique deposition requirements. In addition to thin silicon wafers, we can create customized multi-layer films to fit your unique needs. Our turnaround rate is typically just one day, and we ship to companies and engineers around the world. Contact us today for thin films made to your specifications.
Polished Sapphire Wafers
Synthetic sapphire is an aluminum oxide material grown in a hexagonal crystalline form. It is a very hard material with a high heat resistance, and is highly inert resistant to attack in most process environments (i.e. hydrofluoric acid and the fluorine plasma applications commonly found in semiconductor wafer manufacturing).
The material’s durability and high temperature performance enables polished sapphire wafers and substrates for applications including hybrid microelectronics, polishing characters, radiation resistance, or infrared detectors.
Arrays of LEDs are produced on sapphire substrates that save megawatts of lighting power. At Polishing Corporation of America, we’ve developed a process of polishing these substrates about nine times as easily as previous processes.
We reclaim sapphire substrates containing rejected production thin films for cost savings that we pass onto you. However, our sapphire substrates still feature excellent material properties.
If you need flat, polished sapphire substrates or reclaiming of your substrates, contact us or request a quote today.
