Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1992-04-09
1994-05-24
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
3072967, 307570, H03K 1716
Patent
active
053151674
ABSTRACT:
A switchable voltage generator is provided on-chip together with circuitry including transistors formed in accordance with several different technologies and optimized for operation at different voltages. Provision of a voltage generator on the chip avoids the need for dedicated connections for the lower voltage or voltages. To provide similar levels of burn-in voltage to the different transistor types, a bypass or shunt is provided across the regulator of the voltage generator. The on-chip voltage generator avoids the requirement for a large number of chip or module power connections for each supply voltage required in order to meet current requirements of different portions of chip circuitry. The use of a mode select receiver also avoids the requirement of additional connections to the chip. The combination of one or more switchable voltage generators with a mode select receiver allows economical and efficient electrically stressed testing of the chip at different levels of manufacture.
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Chan Yuen H.
Pelella Anthony R.
Reohr William R.
Callahan Timothy P.
International Business Machines - Corporation
Nu Ton My-Trang
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