GB912554A - Glass-to-metal seal - Google Patents
Glass-to-metal sealInfo
- Publication number
- GB912554A GB912554A GB784860A GB784860A GB912554A GB 912554 A GB912554 A GB 912554A GB 784860 A GB784860 A GB 784860A GB 784860 A GB784860 A GB 784860A GB 912554 A GB912554 A GB 912554A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- quickly
- metal
- mandrel
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/10—Containers; Seals characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/20—Seals between parts of vessels
- H01J5/22—Vacuum-tight joints between parts of vessel
- H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive parts of vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
- H01J2893/0037—Solid sealing members other than lamp bases
- H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material
- H01J2893/0043—Glass-to-metal or quartz-to-metal, e.g. by soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
Abstract
912,554. Glass-to-metal seals. PACIFIC SEMICONDUCTORS Inc. March 4, 1960, No. 7848/60. Class 36. In the manufacture of diode bodies consisting of a pair of metal tubes 12 spaced by a sealed-on glass sleeve 13, manufacturing tolerances between the glass and metal, which interfere with the normal R.F. heating process, are accommodated by a presealing step consisting of quickly heating to a temperature slightly above the softening-point of the glass, quickly cooling below this temperature, and slowly cooling through the annealing range of the glass. During this process the glass shrinks on to the metal tubes and produces an imperfect " black " seal, the metal tubes being covered with a black oxide. Subsequent R.F. heating produces a " grey " hermetic seal. The tubes 12 may be of " Kovar " (Registered Trade Mark) and the sleeve 13 of a hard boro-silicate glass, e.g. 80 % silicon, 14% boric oxide, 4% soda, and 2% alumina. For the pre-sealing treatment, the bodies are threaded on to a series of nickel-chromium alloy wires 11 supported on brackets 25, 26 in a nickel boat 18. The boat is placed for 80- 90 seconds in a preheated oven and then quickly moved to a box of insulating material, e.g. asbestos, in which it quickly cools below the softening-point of the glass. Thereafter, it cools through the annealing range over about 15 minutes. For the final sealing process, each body is placed on a mandrel 44 by means of tongs 40. This mandrel is spring-biased upwards and is depressed to carry the body into the R.F. coil 45 by a complementary mandrel 43.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB784860A GB912554A (en) | 1960-03-04 | 1960-03-04 | Glass-to-metal seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB784860A GB912554A (en) | 1960-03-04 | 1960-03-04 | Glass-to-metal seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB912554A true GB912554A (en) | 1962-12-12 |
Family
ID=9840947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB784860A Expired GB912554A (en) | 1960-03-04 | 1960-03-04 | Glass-to-metal seal |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB912554A (en) |
-
1960
- 1960-03-04 GB GB784860A patent/GB912554A/en not_active Expired
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