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  2. List of companies listed on the Colombo Stock Exchange

    en.wikipedia.org/wiki/List_of_companies_listed...

    Company Name Symbol B P P L Holdings: CSE: BPPL.N0000: Bairaha Farms: CSE: BFL.N0000: Balangoda Plantations: CSE: BALA.N0000: Bansei Royal Resorts Hikkaduwa: CSE: BRR ...

  3. Solid Logic Technology - Wikipedia

    en.wikipedia.org/wiki/Solid_Logic_Technology

    Solid Logic Dense (SLD) increased packaging density and circuit performance by mounting the discrete transistors and diodes on top of the substrate and the resistors on the bottom. [3]: 15 SLD voltages were the same as SLT. Unit Logic Device (ULD) use flat-pack ceramic packages, much smaller than SLT's metal cans.

  4. List of government-owned companies of Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/List_of_government-owned...

    Airport and Aviation Services (Sri Lanka) Limited; The Associated Newspapers of Ceylon Ltd; B.C.C. Lanka Ltd; B.O.C. Bank; CTB BUS; Lynx BUS; Building Materials Corporation Ltd

  5. Semiconductor device fabrication - Wikipedia

    en.wikipedia.org/wiki/Semiconductor_device...

    In 1948, Bardeen patented an insulated-gate transistor (IGFET) with an inversion layer; Bardeen's concept forms the basis of MOSFET technology today. [34] An improved type of MOSFET technology, CMOS, was developed by Chih-Tang Sah and Frank Wanlass at Fairchild Semiconductor in 1963. [35] [36] CMOS was commercialised by RCA in the late 1960s. [35]

  6. List of Sri Lankan public corporations by market capitalisation

    en.wikipedia.org/wiki/List_of_Sri_Lankan_public...

    The Lanka Hospitals Corporation: 22,351: 0.63 Health Care Equipment and Services: 1997 [39] Teejay Lanka: 22,147: 0.62 Consumer Durables and Apparel: 2000 [40] Brown and Company: 21,422: 0.60 Capital Goods: 1892 [41] Dilmah Ceylon Tea Company: 20,986: 0.59 Food, Beverage and Tobacco: 1981 [42] Sunshine Holdings: 20,909: 0.59 Food, Beverage and ...

  7. TO-3 - Wikipedia

    en.wikipedia.org/wiki/TO-3

    Size comparison of BJT transistor packages, from left to right: SOT-23, TO-92, TO-126, TO-3 3D model of TO-3 package. In electronics, TO-3 is a designation for a standardized metal semiconductor package used for power semiconductors, including transistors, silicon controlled rectifiers, and, integrated circuits.

  8. Through-hole technology - Wikipedia

    en.wikipedia.org/wiki/Through-hole_technology

    Through-hole (leaded) resistors. In electronics, through-hole technology (also spelled "thru-hole") is a manufacturing scheme in which leads on the components are inserted through holes drilled in printed circuit boards (PCB) and soldered to pads on the opposite side, either by manual assembly (hand placement) or by the use of automated insertion mount machines.

  9. Flatpack (electronics) - Wikipedia

    en.wikipedia.org/wiki/Flatpack_(electronics)

    A flatpack integrated circuit on a circuit board, among TO-5 packages. The original flatpack was invented by Y. Tao in 1962 while he was working for Texas Instruments to improve heat dissipation. The dual in-line package was invented two years later. The first devices measured 1/4 inch by 1/8 inch (3.2 mm by 6.4 mm) and had 10 leads. [1]

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