摘要:
The present disclosure provides a semiconductor device, the device includes a substrate, a front-end structure formed in the substrate, a back-end structure formed on the front-end structure, a heater embedded in the back-end structure and operable to generate heat, and a sensor embedded in the back-end structure and operable to sense a temperature of the semiconductor device.
摘要:
The present disclosure provides a semiconductor device, the device includes a substrate, a front-end structure formed in the substrate, a back-end structure formed on the front-end structure, a heater embedded in the back-end structure and operable to generate heat, and a sensor embedded in the back-end structure and operable to sense a temperature of the semiconductor device.
摘要:
A method includes testing a first device and a second device identical to each other and comprising integrated circuits. The testing of the first device is performed according to a first test sequence of the first device, wherein the first test sequence includes a plurality of ordered test items, and wherein the first test sequence includes a test item. A test priority of the test item is calculated based on a frequency of fails of the test item in the testing of a plurality of devices having an identical structure as the first device. The first test sequence is then adjusted to generate a second test sequence in response to the test priority of the test item, wherein the second test sequence is different from the first test sequence. The second device is tested according to the second test sequence.
摘要:
In a method of testing a plurality of through silicon vias (TSVs) chained together by interconnect on a substrate, a test signal is applied to a first test pad among a plurality of test pads, and a return signal is measured at a second test pad among the plurality of test pads. At least one test pad of the plurality of test pads is grounded to the substrate. The remaining test pads of the plurality of test pads are either connected to the plurality of chained TSVs or are grounded.
摘要:
A plurality of sets of test conditions of a die in a stacked system is established, wherein the plurality of test conditions are functions of temperatures of the die, and wherein the stacked system comprises a plurality of stacked dies. A temperature of the die is measured. A respective set of test conditions of the die is found from the plurality of sets of test conditions, wherein the set of test conditions corresponds to the temperature. The die is at the temperature using the set of test conditions to generate test results.
摘要:
A package component includes a stack-probe unit, which includes a first-type connector, and a second-type connector connected to the first-type connector. The first-type connector and the second-type connector are exposed through a surface of the package component.
摘要:
A plurality of through silicon vias (TSVs) on a substrate or in a 3 dimensional integrated circuit (3DIC) are chained together. TSVs are chained together to increase the electrical signal. A plurality of test pads are used to enable the testing of the TVSs. One of the test pads is grounded. The remaining test pads are either electrically connected to TSVs in the chain or grounded.
摘要:
A device, such as a 3DIC stacked device includes a first device under test (DUT) connected to a first force pad by a first through substrate via (TSV) stack and connected to a first sense pad by a second TSV stack. The device further includes a second DUT stacked above the first DUT and connected to a second force pad and a second force pad by a second third TSV and connected to a second sense pad by a fourth TSV. Functional blocks on either the first or second blocks can be accessed for testing by way of the TSVs. In some applications the TSVs are vertically aligned to form TSV stacks.
摘要:
A method for assembling a probe card for wafer level testing of a plurality of semiconductor devices simultaneously is disclosed. The probe card may include a circuit board including wafer level testing circuitry, a partially flexible silicon substrate, a plurality of test probes disposed at least partially in the substrate for engaging a plurality of corresponding electrical contacts in a wafer under test, and a compressible underfill coupling the substrate to the circuit board. The method includes aligning and assembling the foregoing components, and curing the underfill. The probe card may be used for wafer level burn-in testing. In some embodiments, the probe card may include active test control circuitry embedded in the silicon substrate for conducting wafer level high frequency testing.
摘要:
A probe card for wafer level testing of a plurality of semiconductor devices simultaneously. The probe card may include a circuit board including wafer level testing circuitry, a partially flexible silicon substrate, a plurality of test probes disposed at least partially in the substrate for engaging a plurality of corresponding electrical contacts in a wafer under test, and a compressible underfill coupling the substrate to the circuit board. The probe card may be used for wafer level burn-in testing. In some embodiments, the probe card may include active test control circuitry embedded in the silicon substrate for conducting wafer level high frequency testing.