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Thick film and thin film composite substrate and electronic circuit apparatus using it

  • US 5,110,664 A
  • Filed: 07/10/1990
  • Issued: 05/05/1992
  • Est. Priority Date: 07/10/1989
  • Status: Expired due to Term
First Claim
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1. A thick film and thin film composite wiring substrate for mounting integrated circuit chips thereon, comprising:

  • a thin film substrate including a first signal wiring layer therein, said first signal wiring layer including a signal wiring for electrically interconnecting signal terminals of said integrated circuit chips; and

    a thick film substrate laminated together with said thin film substrate and including a second signal wiring layer therein, said second signal wiring layer including a signal wiring for electrically interconnecting signal terminals of said integrated circuit chips.

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