Semiconductor wafer contact system and method for contacting a semiconductor wafer
First Claim
Patent Images
1. A semiconductor wafer contact test system comprising:
- a flexible membrane comprising a first plurality of electrical contacts; and
a support substrate pressing against the flexible membrane, the support substrate comprising a grid of raised supports, each of the first plurality of electrical contacts aligned to a separate one of the raised supports.
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Accused Products
Abstract
A semiconductor wafer contact system includes a base substrate (13) which has an array of raised supports (18). The array of raised supports (18) are distributed in a pattern corresponding to the pattern of electrical contacts (12) on the semiconductor wafer (10), to be contacted. In between the base substrate (13) and the wafer to be contacted (10) is a flexible circuit layer (14) including an array of electrical contacts (15) having the same pattern as the contacts (12) of the wafer and the raised supports (18). The raised supports (18) provide focused and localized force, pressing the membrane test contacts (15) against the wafer electrical contacts (12).
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Citations
27 Claims
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1. A semiconductor wafer contact test system comprising:
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a flexible membrane comprising a first plurality of electrical contacts; and a support substrate pressing against the flexible membrane, the support substrate comprising a grid of raised supports, each of the first plurality of electrical contacts aligned to a separate one of the raised supports. - View Dependent Claims (2, 3, 4, 5)
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6. A semiconductor wafer contact test system comprising:
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a base including a grid of raised supports; a compliant layer overlying the grid of raised supports; and a removable flexible circuit layer overlying the compliant layer, the removable flexible circuit layer including a grid of electrical contacts, each of the grid of electrical contacts aligned to a different one of the grid of raised supports. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A semiconductor wafer contact test system comprising:
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a base including a grid of raised supports wherein the base includes a vacuum orifice; a compliant layer overlying the grid of raised supports; and a removable flexible circuit layer overlying the compliant layer, the removable flexible circuit layer including a grid of electrical contacts, each of the grid of raised supports aligned to a different one of the grid of electrical contacts.
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14. A semiconductor wafer contact test system comprising:
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a base substrate including a first array of ridges separated from one another by respective recessed regions; and a circuit layer overlying the base substrate, the circuit layer comprising a second array of electrical contacts, each of the first array of ridges aligned to only one of the second array of electrical contacts. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method for contacting a semiconductor wafer, the method comprising the steps of:
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providing a flexible membrane comprising a first plurality of electrical contacts; and pressing a support substrate against the flexible membrane, the support substrate comprising a grid of raised supports, each of the first plurality of electrical contacts aligned to a separate one of the raised supports. - View Dependent Claims (23)
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24. A method of manufacturing a semiconductor device comprising:
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providing a base including a grid of raised supports; covering the grid of raised supports with a compliant layer; providing a removable flexible circuit layer overlying the compliant layer, the removable flexible circuit layer including a grid of electrical contacts, each of the grid of electrical contacts aligned to a different one of the grid of raised supports; and pressing the grid of raised supports towards the grid of electrical contacts. - View Dependent Claims (25)
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26. A method of contacting a semiconductor wafer, the method comprising the steps of:
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providing a base substrate including a first array of ridges separated from one another by respective recessed regions; providing a circuit layer overlying the base substrate, the circuit layer comprising a second array of electrical contacts, each of the first array of ridges aligned to only one of the second array of electrical contacts; and pressing the first array of ridges against the second array of electrical contacts, the respective recessed regions permitting a plurality of portions of the circuit layer to bow. - View Dependent Claims (27)
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Specification