Electronic test system and associated method
First Claim
1. An electronic test system for testing a chip, comprising:
- a first connection terminal and a second connection terminal respectively coupled to two pins of the chip;
a signal source terminal coupled to a signal generator;
a first measurement terminal and a second measurement terminal coupled to a tester;
a switch circuit comprising a first front terminal, a fourth front terminal, a first back terminal and a fourth back terminal, the first front terminal and the fourth front terminal being coupled to the signal source terminal, the first back terminal and the fourth back terminal being respectively coupled to the first connection terminal and the second connection terminal;
wherein the switch circuit controls conduction between the first front terminal and the first back terminal, and controls conduction between the fourth front terminal and the fourth back terminal;
a fifth switch coupled between the fourth back terminal and the first measurement terminal for selectively conducting between the fourth back terminal and the first measurement terminal; and
a seventh switch coupled between the first connection terminal and the second measurement terminal for selectively conducting between the first connection terminal and the second measurement terminal;
wherein the electronic test system operates in a check mode and a test mode;
when the electronic test system operates in the check mode, the fifth switch conducts;
when the electronic test system operates in the test mode, both the fifth switch and the seventh switch do not conduct.
1 Assignment
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Accused Products
Abstract
Electronic test system and associated method, including a first and a second connection terminals respectively coupled to two pins of a chip under test, a signal source terminal coupled to a signal generator, a first and a second measurement terminals coupled to a tester, a fifth switch, a seventh switch and a switch circuit which has a first and a fourth front terminals coupled to the signal source terminal, has a first and a fourth back terminals coupled to the first and second connection terminals, and controls conduction between the first front terminal and the first back terminal, as well as conduction between the fourth front terminal and the fourth back terminal. The fifth switch is coupled between the fourth back terminal and the first measurement terminal, and the seventh switch is coupled between the first connection terminal and the second measurement terminal.
4 Citations
15 Claims
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1. An electronic test system for testing a chip, comprising:
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a first connection terminal and a second connection terminal respectively coupled to two pins of the chip; a signal source terminal coupled to a signal generator; a first measurement terminal and a second measurement terminal coupled to a tester; a switch circuit comprising a first front terminal, a fourth front terminal, a first back terminal and a fourth back terminal, the first front terminal and the fourth front terminal being coupled to the signal source terminal, the first back terminal and the fourth back terminal being respectively coupled to the first connection terminal and the second connection terminal;
wherein the switch circuit controls conduction between the first front terminal and the first back terminal, and controls conduction between the fourth front terminal and the fourth back terminal;a fifth switch coupled between the fourth back terminal and the first measurement terminal for selectively conducting between the fourth back terminal and the first measurement terminal; and a seventh switch coupled between the first connection terminal and the second measurement terminal for selectively conducting between the first connection terminal and the second measurement terminal; wherein the electronic test system operates in a check mode and a test mode;
when the electronic test system operates in the check mode, the fifth switch conducts;
when the electronic test system operates in the test mode, both the fifth switch and the seventh switch do not conduct. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method applied to an electronic test system, the electronic test system being arranged to test a chip, and comprising a first connection terminal, a second connection terminal, a signal source terminal, a first measurement terminal, a second measurement terminal and a switch circuit;
- wherein the signal source terminal is coupled to a signal generator, the first connection terminal and the second connection terminal are respectively coupled to two pins of the chip, the first measurement terminal and the second measurement terminal are coupled to a tester, the switch circuit comprises a first front terminal, a fourth front terminal, a first back terminal and a fourth back terminal, the first front terminal is coupled to the fourth front terminal and the signal source terminal, the first back terminal and the fourth back terminal are respectively coupled to the first connection terminal and the second connection terminal, and the switch circuit controls conduction between the first front terminal and the first back terminal, and controls conduction between the fourth front terminal and the fourth back terminal; and
the method comprising;for function check of the switch circuit, conducting the first measurement terminal to the fourth back terminal, conducting the second measurement terminal to the first back terminal, and not conducting between the signal source terminal and the first front terminal. - View Dependent Claims (12, 13, 14, 15)
- wherein the signal source terminal is coupled to a signal generator, the first connection terminal and the second connection terminal are respectively coupled to two pins of the chip, the first measurement terminal and the second measurement terminal are coupled to a tester, the switch circuit comprises a first front terminal, a fourth front terminal, a first back terminal and a fourth back terminal, the first front terminal is coupled to the fourth front terminal and the signal source terminal, the first back terminal and the fourth back terminal are respectively coupled to the first connection terminal and the second connection terminal, and the switch circuit controls conduction between the first front terminal and the first back terminal, and controls conduction between the fourth front terminal and the fourth back terminal; and
Specification