a迷人秋风景 Enchanting fall scenery [translate] aSecond-generation computers,appearing in the early 1960s,were those in which transistors replaced vacuum tubes.The transistor was invented 第二代 计算机,出现 60年代初期,是晶体管替换真空管的那些。晶体管被发明了 [translate] ...
The BJT is termed bipolar because its operation — unlike the field effect transistor's (FET) — depends on both positive (holes) and negative (electrons) charge carriers. Before the transistor was invented, amplifiers used vacuum tubes ('valves') and vacuum tubes used a great deal of power...
aSecond-generation computers,appearing in the early 1960s,were those in which transistors replaced vacuum tubes.The transistor was invented in 1947 but did not see widesp read use in computers until the late 50s.The transistor was far superior to the vacuum tube,allowing computers to b 第二代...
(grid negative and cathode positive) would diminish conductivity through the tube while a voltage of the other polarity (grid positive and cathode negative) would enhance conductivity. I find it curious that one of the later transistor designs invented exhibits the same basic properties of the very...
The 1950s were a time of rapid change in transistor technology. The transistor was invented at Bell Labs in 1947. General Electric invented the alloy junction transistor (used in the 1401) in 1950. In 1953, the drift transistor was created, faster because of its doping gradient. IBM used ...
METAL oxide semiconductor field-effect transistorsELECTRIC potentialCHARGE carriersCHARGE transferTriboelectric nanogenerators (TENG) were invented as a highly effective technology for harvesting ambient mechanical energy. By coupling the TENG and metal‐oxide‐semiconductor field‐effect transistor, a...
The next year, Bell Labs announced to the world that it had invented working transistors. The original patent name for the first transistor went by this description: Semiconductor amplifier; three-electrode circuit element utilizing semi conductive materials. It was an innocuous-sounding phrase. But ...
Once the transistor cat was let out of the bag, vacuum tubes were on their way to extinction in all but the most specific of applications. Transistors are much more durable (vacuum tubes, like light bulbs, will eventually need to be replaced), much smaller (imagine fitting 2 billion tubes...
that ended up as heat which shortened the life of the tube itself. To overcome these problems, John Bardeen, Walter Brattain, and William Shockley were invented a transistor at Bell Labs in the year of 1947. This new device was a much more elegant solution to overcome many of the fundament...
have been invented. Concurrently, conventional large-area technologies are being adapted to permit processing on plastic substrates with minimal performance loss2,13. Despite these continuing improvements, the architecture of the fundamental building-block used for LAE, the thin-film field-effect transist...