1 A method of manufacturing a structure comprising at least one tube and at least one plate of metal-matrix composite material that are connected to each other, the method comprising the following steps in succession:
placing a first fiber preform having substantially the shape of the tube, a second fiber preform having substantially the shape of the plate, and a third fiber preform surrounding an end of the first fiber preform adjacent to the second fiber preform in a cavity of a single mold; and
injecting a metal or a metal alloy into the cavity of the mold.
2 A method according to claim 1, applied to the case where the tube is hollow, in which a mandrel is also placed in the mold inside the first fiber preform, the mandrel being complementary in shape to the inside of the tube.
3 A method according to claim 1, in which the third fiber preform is made in the form of two half-shells, each having the shape of a half-ring.
4 A method according to claim 1, in which the metal or metal alloy is injected into the cavity of the mold substantially along a longitudinal axis of the first fiber preform via a face of the second fiber preform remote from the first fiber preform.
5 A method according to claim 1, in which the first, second, and third fiber preforms are made by draping so that some of the fibers in each of the fiber preforms are substantially in alignment when the preforms are placed in the mold.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An integrated circuit comprising:
A. functional circuitry;
B. a serial scan path connected to the functional circuitry, the serial scan path having a stimulus data input, a response data output, and scan control inputs;
C. a formatter control input lead; and
D. formatter circuitry having one data input connected to a logic \u201c1\u201d signal, another data input connected to a logic \u201c0\u201d signal, a response data input cooupled to the response data output, a control input connected to the formatter control input lead, and an output coupled to the stimulus data input.
2. The integrated circuit of claim 1 in which the scan control inputs are a clock input and an enable input.
3. The integrated circuit of claim 1 in which the formatter control lead is accessible externally of the integrated circuit.
4. The integrated circuit of claim 1 in which the response data output is accessible externally of the integrated circuit.
5. The integrated circuit of claim 1 in which the formatter circuitry includes multiplexing circuitry having the one data input connected to a logic \u201c1\u201d signal, the another data input connected to a logic \u201c0\u201d signal, the response data input coupled to the response data output, the control input connected to the formatter control input lead, and the output coupled to the stimulus data input.