发明授权
US5825067A Dielectrically isolated IC merged with surge protection circuit and method for manufacturing the same 失效
电感隔离IC与浪涌保护电路及其制造方法相结合

Dielectrically isolated IC merged with surge protection circuit and
method for manufacturing the same
摘要:
A semiconductor IC comprising a supporting substrate; a first buried insulator film formed partially on the supporting substrate; a second buried insulator film thinner than the first buried insulator film formed partially on the supporting substrate; a plurality of island-shaped semiconductor layers formed on the first and second buried insulator films, respectively; and dielectric isolation regions formed between the plurality of island-shaped semiconductor layers. A surge protection circuit is formed in the island-shaped semiconductor layer formed on the second buried insulator film and also an internal circuit is formed in other island-shaped semiconductor layers formed on the first buried insulator film. Surface wirings are disposed to interconnect the surge protection circuit and the internal circuit.
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