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    • 92. 发明申请
    • SILICON ON SAPPHIRE LASER PROCESS
    • 硅胶激光工艺
    • WO1981000326A1
    • 1981-02-05
    • PCT/US1980000917
    • 1980-07-23
    • HUGHES AIRCRAFT CO
    • HUGHES AIRCRAFT COYAROM GHESS LHARARI EWANG S
    • H01L21/265
    • H01L21/76894H01L21/268
    • A beam of radiant energy (13) such as a laser beam is applied to an epitaxial silicon island on a silicon on sapphire device before formation of overlying layers of oxide and metal. The energy beam (13) changes the crystal structure of the epitaxial silicon island (2) to increase the mobility of carriers in the silicon island (2), improving the speed of transistors formed on the silicon island (2). The energy beam (13) also causes the material in the silicon island edge (2) to reflow, causing a reduction in the slope of the edge face of the silicon island edge (3), and a smoothing of the surface of the face, resulting in improved aluminum step coverage and elimination of a V-shaped groove in the first insulation layer (6) at the bottom corner edge (8) of the island (2), thereby increasing processing yield.
    • 在形成覆盖层的氧化物和金属之前,将诸如激光束的辐射能束(13)施加到蓝宝石器件上的硅上的外延硅岛上。 能量束(13)改变外延硅岛(2)的晶体结构,以增加硅岛(2)中载流子的迁移率,从而提高在硅岛(2)上形成的晶体管的速度。 能量束(13)还使得硅岛边缘(2)中的材料回流,导致硅岛边缘(3)的边缘面的斜率减小,并且使表面的平滑化, 导致铝台阶覆盖的改善和岛(2)的底角边缘(8)处的第一绝缘层(6)中的V形槽的消除,从而提高加工产量。
    • 99. 发明公开
    • FORMATION OF CONTACTS ON THIN FILMS
    • 生产薄膜ON KONATAKTEN
    • EP1234340A4
    • 2008-03-26
    • EP00971158
    • 2000-10-31
    • CSG SOLAR AG
    • BASORE PAUL ALAN
    • H01L31/04H01L21/768H01L31/0224H01L23/485H01L27/082H01L31/05H01L31/18
    • H01L21/76802H01L21/76894H01L31/022425Y02E10/50
    • A simple thin film structure in which a substrate (22), which may be glass or any other suitable substrate material, supports a semiconductor device structure (12), over which is formed a dielectric barrier (17) and a composite metal film contact structure (23, 28). The contact structure is formed by creating holes (19) in the dielectric barrier (17) at locations where contact to the upper region (13) of the semiconductor material is required, and then forming a first metal film (23) over the dielectric (17) and extending into the holes (19) to contact the surface of the top region of the semiconductor structure (12). A second set of holes (32) are created through the first metal film (23), the dielectric structure (17) and into the semiconductor structure (12) to expose an underlying region (15) having an opposite polarity to the region (13) exposed by the first holes (19). The surfaces of the second holes (23) are doped with the same dopant polarity as the underlying region (15) and a second metal film (28) is formed over the first metal film (23) and extending into the holes (32) to contact the underlying semiconductor region. The metal structure is then scribed between each first hole (19) and adjacent second holes (32) to isolate the contacts to the upper and lower semiconductor regions.