eBay

I have here an Extremely Rare 4" Silver? Silicon Wafer from I would assume to be the 1980's as the others are from that time.

This is an interesting 4" Silicon Wafer, and while I had scoped it I cannot find any information on it, so this is an unknown Wafer. This wafer is looks to have a Fully Silver backing with interesting silver traces. A very unique wafer.

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This Wafer was one of many that I have in my collection that I was told belonged to someone From "CVD Systems" which I assume is "CVD Equipment Corp" which is a manufacturer of equipment such as Silicon Wafers, that Xerox had possibly contracted with, to get their Wafers made. I had thought maybe this was from a Xerox Employee, as the first 2 Wafers were from Xerox, but a few others don't seem to be Xerox. I'm unsure fully as the details are hard to find on some wafers. I assume what the seller told me is correct, and CVD Equipment Corp seems to be the best connection.

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(Sellernote NoteCarrier. The last number of images is showing all of the Wafers together that in came in this Carrier)

This Wafer comes from a very large collection I had purchased from an Estate of an Old Engineer.

This includes these Xerox Wafers:

https://www.ebay.com/itm/267363584023

https://www.ebay.com/itm/266805407506

https://www.ebay.com/itm/266507436039

https://www.ebay.com/itm/267363585604

https://www.ebay.com/itm/267388214446

https://www.ebay.com/itm/267388217468

https://www.ebay.com/itm/267388228587

https://www.ebay.com/itm/267389508242

https://www.ebay.com/itm/267389510782

https://www.ebay.com/itm/267389513612

https://www.ebay.com/itm/267389515158

https://www.ebay.com/itm/267389528490

https://www.ebay.com/itm/267389529206

https://www.ebay.com/itm/267398900657

https://www.ebay.com/itm/267398902561

https://www.ebay.com/itm/267398904330

https://www.ebay.com/itm/267398917388

https://www.ebay.com/itm/267398932516

https://www.ebay.com/itm/267398933116

https://www.ebay.com/itm/267398934896

https://www.ebay.com/itm/267409414695

https://www.ebay.com/itm/267409429842

https://www.ebay.com/itm/267409447514

https://www.ebay.com/itm/267409454095

Possibly Xerox:

https://www.ebay.com/itm/267388306457

https://www.ebay.com/itm/267398923304

As well as these Intersil Wafers:

https://www.ebay.com/itm/267383754931

https://www.ebay.com/itm/267388309539

https://www.ebay.com/itm/267391649478

https://www.ebay.com/itm/267391650323

https://www.ebay.com/itm/267391651475

https://www.ebay.com/itm/267391651962

https://www.ebay.com/itm/267391653315

https://www.ebay.com/itm/267391651962

https://www.ebay.com/itm/267391656283

https://www.ebay.com/itm/267398854385

https://www.ebay.com/itm/267398862876

https://www.ebay.com/itm/267398866411

and these unknown Wafers:

https://www.ebay.com/itm/267385654979

https://www.ebay.com/itm/267385656000

https://www.ebay.com/itm/267385671036

https://www.ebay.com/itm/267388195671

https://www.ebay.com/itm/267388199138

https://www.ebay.com/itm/267388204811

https://www.ebay.com/itm/267388211826

https://www.ebay.com/itm/267388278517

https://www.ebay.com/itm/267388311863

https://www.ebay.com/itm/267388313024

https://www.ebay.com/itm/267398845305

https://www.ebay.com/itm/267398926330

https://www.ebay.com/itm/267410352273

these iMP Group Wafers:

https://www.ebay.com/itm/267385664942

https://www.ebay.com/itm/267385668661

https://www.ebay.com/itm/267388194612

https://www.ebay.com/itm/267392199163

https://www.ebay.com/itm/267398928456

https://www.ebay.com/itm/267398929599

REC Wafers:

https://www.ebay.com/itm/267389446259

Unknown Company A Wafers:

https://www.ebay.com/itm/267389499023

https://www.ebay.com/itm/267388195671

https://www.ebay.com/itm/267391658828

https://www.ebay.com/itm/267391661761

Unknown Company "Mons" Wafers:

https://www.ebay.com/itm/267388192499

https://www.ebay.com/itm/267389536209

https://www.ebay.com/itm/267389537631

https://www.ebay.com/itm/267409646221

N3D Wafers:

https://www.ebay.com/itm/267385658552

https://www.ebay.com/itm/267392189953

https://www.ebay.com/itm/267409722351

https://www.ebay.com/itm/267409730391

Unknown Company Gold Wafers:

https://www.ebay.com/itm/267385656949

https://www.ebay.com/itm/267392212707

https://www.ebay.com/itm/267392216740

https://www.ebay.com/itm/267409702024

Unknown Company Silver Wafers:

https://www.ebay.com/itm/267385657870

https://www.ebay.com/itm/267392222697

https://www.ebay.com/itm/267392233165

NCR Wafers:

https://www.ebay.com/itm/267410357795

https://www.ebay.com/itm/267388284815

IBM? Wafers:

https://www.ebay.com/itm/267410363573

Western Electric / Bell Labs? Wafers:

https://www.ebay.com/itm/267410378334

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Open to offers.

If you have any questions, or would like additional pictures, please do not hesitate to ask.

I will be listing many unique, rare, one-of-a-kind, vintage CPU, Computer Chips, Silicon Wafers, and other parts in the following weeks, so if there is any interest or inquiry into something I might have, please don't hesitate to ask!

Thank you for your time with viewing my listing, I appreciate it. I hope you have a great day!

NOTE:THE PICTURES ARE OF THE ORIGINAL LISTING FOR THIS WAFER. I HAVE AT LEAST 5 DUPLICATES OF THIS WAFER, SO I AM KEPT THE ORIGINAL LISTING PHOTOS. I WILL SEND PHOTOS OF THE WAFER CHOSEN FROM THE GROUP OF DUPLICATES, IF YOU WOULD LIKE. I TRY TO PICK OUT THE BEST LOOKING ONE OUT WHEN PACKING UP, BUT FIRST COME FIRST SERVE. THANK YOU!

NOTE2: Handling time is set to 10 days because I normally end up having buyers who want more than 1 item, so a few days can go by before the full transaction is completed; however, the handling time set for each item has to be obeyed or else penalties happen to me, so I set the handling time to a time that shouldn't cause problems. I have been recently notified(10/24/22) that some buyers are concerned about the long handling times so I want to make everyone completely aware of the situation.

After THE FULL Transaction is complete(the buyer is done choosing listings to purchase, and ready for shipment), I normally try to ship the day of completion or the next day(depending if transaction completion happens early enough in the day and on a weekday), but 2-3 regular days(not business days) would be the maximum handling time. I do not want buyers to have to wait for their product after purchase, I just want to make sure buyers have selected everything they want to purchase, before I ship, as most of my buyers thus far have wanted more than 1 item, while at the same time make sure I do not get penalized, because even if a buyer is okay with waiting, I have to obey the times set by the site. Thank you for your understanding, and thank you for your time with viewing my listing, I really appreciate it. If you have any questions at all about this issue, or anything else I can answer for you / help-you-with, please do not hesitate to ask. I am here to make the Buyer's experience completely satisfactory, so let me know if there is anything I can do for you! I hope you have a fantastic day!