High Temp Quartz Diffusion Tube Holder, Handler, Hot Tube Handling Device Steel Boat/Tube Puller Measurements: Handle: Riser: 1.75" High Screw: 1.25" from handle Length: 6" Long Width: 2.25" OD End: 7", slight flex increase or decrease Information from the Patent: HOT TUBE HANDLING DEVICE United States Patent 3857598 Abstract: The invention comprises a device for handling, transporting and positioning hot quartz cradles or "boats" containing hot semi-conductive wafers in cylindrical or hemi-cylindrical tubes wherein the tubes are kept in such position that the axis of the tubes and also the axis of the cradles are kept substantially parallel to a horizontal surface. The device includes a frame which will matably receive the cylindrical surface of a body having a cylindrical surface, means for securing the cylindrical surface of the body to the frame and a handle attached to the frame for moving the device. HE PRIOR ART Flat semi-conductor wafers are usually put in cradles or "boats" which hold them separate from one another and with both sides exposed to the surrounding air. The boats are placed within cylindrically shaped recesses in an oven. The use of the cylindrically shaped recesses assures equal heating from all directions of the wafers. The boats are made of quartz because of its high melting point, thermal shock resistance, contamination resistance, and transparency. The legs of the boats are shaped to stably rest the boat within the cylindrically shaped furnace recesses. The boats are loaded with wafers and placed within a cylindrical or hemi-cylindrical tube. The boat containing tube is then placed parallel to and with one of its ends mating with a cylindrically shaped oven recess. The boat is then slid from the tube into the recess using a quartz rod or the like. Because the boat rests on a cylindrical surface both within the tube and within the recess the transfer is carried out without disturbing the wafers and the boat is kept substantially parallel to the ground throughout the operation. The boats are removed from the oven by reversing this operation. The tubes are made of quartz because of its high melting point, high resistance to thermal shock, contamination resistance, and transparency. Some of the quartz tubes have quartz handles of one sort or another sealed to them to aid the operator in grasping them and/or to keep them in a substantially horizontal position when they are transported from near the oven to their cooling place. Unfortunately quartz handles often snap off just when they are being used because of strains in the seals between the handles and the tubes. Also, working with quartz in both difficult and time-consuming. To maintain a horizontal position for the articles within the tubes while cooling them, it is necessary that cooling racks be provided externally of the oven which hold the tube from rotating or that the quartz cylinders have sealed to them in some manner or other appurtenances which prevent the cylindrical tubes from rotating when placed upon a horizontal surface. The first expedient is obviously expensive in requiring specially constructed drying racks. The second expedient is also expensive in that it requires working with quartz and forming quartz seals which (as previously mentioned) is both difficult and time-consuming. Also, when appurtenances are sealed to quartz, they sometimes snap off because of the development of strains in the seals between the tube and the appurtenances. Thus, it would be highly desirable to provide a simple and inexpensive device which could be used to hold quartz tubes in a horizontal and non-rotating position both when transporting wafer boats and when placed upon a horizontal surface for cooling wafers and wafer boats. This invention provides just such a device. Check Out: *Purchase: Making purchases is easy and simple. To place an order for procurement, please click the “Buy It Now” button. Follow to the next page for payment instructions. *Payment: Click the “Pay Now” button at the top of the E-Bay page to proceed with the checkout and payment process. Payment must be made within 5 days of purchase. *Accepted Forms: We accept PayPal, or you may pay on your credit card via PayPal. When paying via PayPal, payments must include your shipping address and should be submitted via the E-bay payment process. Sales Tax: *For California customers, sales tax is added and depends upon your location. If you are tax exempt, please provide a copy of your Tax Exempt Certificate prior to check out. Please do not send payment before receiving a revised invoice. Shipping: *Shipping rates are the responsibility of the customer and are not refundable. Rates include handling, packaging materials, label scanning and tracking information. Shipping rates are based upon the weight and dimensions of the package and your location. If we have packaging materials for smaller items, we include packaging and handling at no charge. If they are unavailable, we charge our cost. Please contact us for shipping, packaging, crating costs and exact weight prior to shipment as these will add weight to the items. *Shipping rates may be posted on an item at smaller than actual size. Please verify shipping costs prior to check out. *Insurance: Should you prefer insurance on your item, please inform us PRIOR to check out so this may be added to the shipping cost. Insurance is not added unless specifically requested by the buyer. *Processing Time: Once payment has cleared, we make every effort to ship your item within 1-2 business days. Larger capital equipment which requires crating may require a longer time to build the crate. *Freight Shipment: Freight Shipment is the responsibility of the buyer, although we will do everything possible to assist you with this process. There may be rigging, crating or palletizing charges depending upon the item purchased. Please contact us for additional information on the item you purchase. *Local Pick Up: Local pick up is available on most items. Please contact us to arrange pick up for your items. *Shipping Account: If you would prefer to use your shipping account, please let us contact us. We are happy to do so. *International Shipping: International shipping is determined on a case by case basis. We reserve the right to refuse shipment to certain locations/customers if all our requirements are not met. All documentation and customs reports are to be prepared by the purchasing party and provided prior to pick up. 48 Hour notice is a minimum required notice prior to International pick up. Insurance is required on all International orders. Customer Service: *Inquiries: Please contact us with any questions you have on any listed item. While we are closed over the weekend, we will make every effort to answer your questions as soon as possible. Most questions are answered in less than 24 hours. Warranty: *Products are sold As Is, Where Is: All items are sold As Is, Where Is, without warranty expressed or implied unless specifically stated in the posting. This does not mean that the unit does not work, only that we have not tested it or check it out. This also may mean that we are not knowledgeable in a certain item. *Warranty Items: If product is sold for less than original asking price (on sale, best offer, price reduction), warranty is automatically removed and does not apply. *All Sales are Final: All sales are final. Please ask any pertinent questions regarding the condition before you purchase your item. We reserve the right to refuse a return based upon not understanding the description or not wanting the item. *DOA Terms: An item said to be in working condition but received Dead on Arrival (DOA) can be returned for exchange or refund (when no exchange is available) if we are notified within 7 days of receipt of product. Compensation will be provided upon return of item, physical examination, testing and serial number verification. If any one of these items are not met, we reserve the right to withhold funds for an indefinite time until all requirements are met. *Return Shipment: All items must be in the same condition as when they left our facility. For claims, it is required that original packaging materials be retained and returned with the defective product. If the item has been changed or tampered with in any way, from original condition, we reserve the right to refuse refund. Upon receipt of the unit we will fully test the item in question, visually inspect the condition and verify the serial numbers. If the state of the item is not as was described in the listing, we reserve the right to refuse refund. If it is evident the item was damaged due to improper installation or use, we reserve the right to refuse refund. All returned shipments should be properly insured. We will not honor claims for any items which were uninsured and damaged during return shipment. *Auction Pictures: Some auction pictures may be representational only and not the exact items we will ship (particularly if we have a quantity of more than one listed).
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