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EP0150929A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Substrate with optical communications systems between chips mounted thereon

Assignee: Texas Instruments Inc
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Filing: 1985-01-10
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Granted: —
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Expires: 2005-01-10
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Abstract

Abstract The disclosure relates to a complex circuit composed of a circuit board (Silicon Mother Board) which is formed of crystal- fine elemental silicon in the form of a slice and circuit component in the form of semiconductor integrated circuits (Flip Chip) thereon which are preferably formed of a Group III-V compound. Signals from each of the integrated circuits are transmitted to other integrated circuits on the board or externally of the board either by conventional printed conductors on the board or, preferably, by means of a laser (TX) formed in each integrated circuit at each output terminal thereon which transmits light signals along light conducting members (Optical Link) in the silicon board to photo responsive elements (RX) at the input locations on other ones of the integrated circuits on the board for external to the board. The tight signal is transferred from an integrated circuit output to an integrated circuit input or to a device external to the board by means of light conducting members. These light conducting members may be light conducting rods positioned either on the surface of the board or in grooves formed therein. Alternatively, the light conducting members can be silicon dioxide paths formed in the silicon circuit board by selective oxidation of the silicon board to form silicon dioxide light conducting paths therein. Each light conducting path is coupled between a light emitting output from an integrated circuit and a light emitting input of another integrated circuit or travel to the edge of the circuit board for transmission external of the board.

Inventors

  • 👤 Lee R. Reid
  • 👤 Han-Tzong Yuan

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 04:48
CPC Classifications
H; H10; H10F; H10F55/00; G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/43; H04; H04B; H04B10/00; H04B10/80; H04B10/801

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 65 words
An optical communication system which comprises: a) a crystalline silicon support means, b) optical frequency transmission means disposed on said support means, c) a first semiconductor device, including an optical frequency transmitter disposed on said support and optically coupled to said transmission means, and d) a second semiconductor device including an optical frequency receiver disposed on said support and optically coupled to said transmission means.
Claim 2
Dependent Claim 65 words
An optical communication system which comprises: a) a crystalline silicon support means, b) optical frequency transmission means disposed on said support means, c) a first semiconductor device, including an optical frequency transmitter disposed on said support and optically coupled to said transmission means, and d) a second semiconductor device including an optical frequency receiver disposed on said support and optically coupled to said transmission means.
Claim 3
Dependent Claim 20 words
An optical communication system as set forth in Claim 1 wherein said first semiconductor device is formed from gallium arsenide.
Claim 4
Dependent Claim 24 words
An optical communication system as set forth in Claim 1 wherein said transmission means is a light conducting fiber disposed on said support means.
Claim 5
Dependent Claim 24 words
An optical communication system as set forth in Claim 1 wherein said transmission means is a silicon oxide path formed from said support means.
Claim 6
Dependent Claim 41 words
An optical communication system as set forth in Claim 1, 2, 3 or 4 further including a plurality of mesas formed in the surface of said support, said first and second semiconductor devices being disposed on predetermined ones of said mesas.
Claim 7
Dependent Claim 28 words
An optical communication system as set forth in Claim 5 wherein each of said semiconductor devices includes conductive pads thereon contacting said mesas, said mesas being electrically conductive.
Claim 8
Dependent Claim 95 words
An optical communication system comprising: a) plural crystalline silicon support means positioned one above the other and spaced from the adjacent support means, each support means comprising, b) optical frequency transmission means disposed on said support means, c) a first semiconductor device including an optical frequency transmitter disposed on said support and optically coupled to said transmission means, and d) a second semiconductor device including an optical frequency receiver disposed on said support and optically coupled to said transmission means, and e) means optically interconnecting optical transmission means on plural ones of said support means.
Claim 9
Dependent Claim 95 words
An optical communication system comprising: a) plural crystalline silicon support means positioned one above the other and spaced from the adjacent support means, each support means comprising, b) optical frequency transmission means disposed on said support means, c) a first semiconductor device including an optical frequency transmitter disposed on said support and optically coupled to said transmission means, and d) a second semiconductor device including an optical frequency receiver disposed on said support and optically coupled to said transmission means, and e) means optically interconnecting optical transmission means on plural ones of said support means.
Claim 10
Dependent Claim 22 words
An optical communication system as set forth in Claim 7 wherein said first semiconductor device is formed from a Group III-V material.
Claim 11
Dependent Claim 24 words
An optical communication system as set forth in Claim 7 wherein said transmission means is a light conducting fiber disposed on said support means.
Claim 12
Dependent Claim 24 words
An optical communication system as set forth in Claim 7 wherein said transmission means is a silicon oxide path formed from said support means.
Claim 13
Dependent Claim 52 words
An optical communication system which comprises; a) a first crystalline silicon support means, b) a second support means, c) a Group III-V material light transmitting means on said first support means, and d) a slight receiving means optically coupled to the output of said light transmitting means on said second support means.
Claim 14
Dependent Claim 52 words
An optical communication system which comprises; a) a first crystalline silicon support means, b) a second support means, c) a Group III-V material light transmitting means on said first support means, and d) a slight receiving means optically coupled to the output of said light transmitting means on said second support means.
Claim 15
Dependent Claim 18 words
An optical communication system as set forth in Claim 11 wherein said Group III-V material is gallium arsenide.
Claim 16
Dependent Claim 22 words
An optical communication system as set forth in Claim 11 wherein said light receiving means is formed from a Group III-V material.

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