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Chuang; Chien-Hui
Taipei Hsien, TW
No. of patents:

Patent Number Title Of Patent Date Issued
7339398 Driver impedance control apparatus and system March 4, 2008
A driver impedance control apparatus and system for determining the impedance of at least one driver are provided. The driver impedance control apparatus includes a first reference impedance, a second reference impedance, a dummy pull-up array, a dummy pull-down array, a pull-up arra
7282953 Pre-buffer level shifter and input/output buffer apparatus October 16, 2007
A pre-buffer level shifter and an I/O buffer apparatus are provided. The pre-buffer level shifter includes a switchable current source, a current mirror, a buffer unit, a first clamping circuit and a second clamping circuit. Because of a clamping circuit inside a thin oxide MOS transisto
7050282 Power supply clamp circuit May 23, 2006
A power supply clamp circuit for preventing damage to an integrated circuit due to electrostatic discharge. The power supply clamp circuit includes a voltage generator electrically connected to a first node for generating a voltage; a first PMOS transistor having a source electricall
6728086 Power-rail electrostatic discharge protection circuit with a dual trigger design April 27, 2004
A power-rail ESD (electrostatic discharge) protection circuit with a dual trigger design is proposed, which is coupled between a first power line and a second power line connected to an IC device for protecting the IC device against ESD on the first power line and the second power line.
6690561 Effective gate-driven or gate-coupled ESD protection circuit February 10, 2004
An ESD protection circuit, arranged between a first and second potential terminals, has a RC branch, a voltage adjuster circuit, and an ESD discharge transistor. The RC branch includes a resistor and a capacitor series connected from the first to the second potential terminal. The vo
6690557 CMOS whole chip low capacitance ESD protection circuit February 10, 2004
A low capacitance electrostatic discharge circuit (ESD) for a built-in CMOS chip capable of protecting an internal circuit within the chip. A first voltage source and a second voltage source are provided to the electrostatic protection circuit. The ESD circuit is coupled to a bonding
6639772 Electrostatic discharge protection circuit for protecting input and output buffer October 28, 2003
An electrostatic discharge (ESD) protection circuit for protecting input and output buffers. The ESD protection circuit is driven by a first voltage source and a second voltage source and coupled to a bonding pad. The ESD protection circuit has a first resistor, a first PMOS transistor,

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