Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1996-12-23
1999-03-02
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310331, H01L 4108
Patent
active
058775803
ABSTRACT:
A dispenser for chemical fluid samples that need to be precisely ejected in size, location, and time. The dispenser is a micro-electro-mechanical systems (MEMS) device fabricated in a bonded silicon wafer and a substrate, such as glass or silicon, using integrated circuit-like fabrication technology which is amenable to mass production. The dispensing is actuated by ultrasonic transducers that efficiently produce a pressure wave in capillaries that contain the chemicals. The 10-200 .mu.m diameter capillaries can be arranged to focus in one spot or may be arranged in a larger dense linear array (.about.200 capillaries). The dispenser is analogous to some ink jet print heads for computer printers but the fluid is not heated, thus not damaging certain samples. Major applications are in biological sample handling and in analytical chemical procedures such as environmental sample analysis, medical lab analysis, or molecular biology chemistry experiments.
REFERENCES:
patent: 3848118 (1974-11-01), Rittberg
patent: 4032929 (1977-06-01), Fischbeck et al.
patent: 4115789 (1978-09-01), Fischbeck
patent: 4639631 (1987-01-01), Chason et al.
patent: 4680595 (1987-07-01), Cruz-Uribe et al.
patent: 4812856 (1989-03-01), Wallace
patent: 5411602 (1995-05-01), Hayes
patent: 5415679 (1995-05-01), Wallace
patent: 5448126 (1995-09-01), Eda et al.
patent: 5475279 (1995-12-01), Takeuchi et al.
patent: 5512793 (1996-04-01), Takeuchi et al.
patent: 5617127 (1997-04-01), Takeuchi et al.
Budd Mark O.
Carnahan L. E.
Regents of the University of California
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