PROBER
PROBLEM TO BE SOLVED: To provide a prober with which it is possible to reduce stray inductance from a chip reverse side electrode to a test connection point.SOLUTION: The prober comprises: a wafer chuck 18 having an electroconductive support surface 18a; a probe card 24 having a plurality of probes...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a prober with which it is possible to reduce stray inductance from a chip reverse side electrode to a test connection point.SOLUTION: The prober comprises: a wafer chuck 18 having an electroconductive support surface 18a; a probe card 24 having a plurality of probes 25 on the surface facing the support surface 18a; a stage member 50 having an electroconductive stage surface 50a formed on the support surface 18a in parallel thereto and electrically connected to the support surface 18a and moving integrally with the wafer chuck 18; an electroconductive contactor 52 arranged at a position facing the stage surface 50a; and a tabular wiring member 70 arranged at a position parallel and close to the stage surface 50a, electrically connected at one end to the electroconductive contactor 52, and extended toward the wafer chuck 18 side.SELECTED DRAWING: Figure 4
【課題】チップ裏面電極からテスタ接続点までの浮遊インダクタンスを低下させることができるプローバを提供する。【解決手段】導電性の支持面18aを有するウエハチャック18と、支持面18aに対向する面に複数のプローブ25を有するプローブカード24と、支持面18aに対して平行に形成されると共に支持面18aに電気的に接続された導電性のステージ面50aを有し、ウエハチャック18と一体的に移動するステージ部材50と、ステージ面50aに対向する位置に配置された導電性接触子52と、ステージ面50aと平行かつ近接した位置に配置され、一端が導電性接触子52に電気的に接続され、ウエハチャック18側に向かって延設された平板状配線部材70と、を備える。【選択図】図4 |
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