Keysight / Agilent / HP N4237A DDR2 DRAM BGA Probe Kit

The Keysight N4237A DDR2 DRAM BGA Probe Kit is an interposer probe designed for high-speed signal access and measurement within DDR2 DRAM memory systems. It has non-intrusive electrical connection to Ball Grid Array (BGA) components, enabling direct observation of data traffic on industry-standard FB-DIMMs (Fully Buffered DIMMs). The kit facilitates design validation and debugging by granting access to full command, address, control, and data bus signals at the BGA ball level. Signal integrity is maintained throughout the probing process through careful electrical design that minimizes signal distortion – critical for accurate measurements in high-frequency DDR2 applications. Trace lengths are matched to reduce skew issues, ensuring reliable signal capture across all measured channels. ## Technical Specifications • **Technology Supported:** DDR2 DRAM
• **Package Type:** BGA (Ball Grid Array)
• **Module Type:** FB-DIMM (Fully Buffered DIMM)
• **Signal Access Method:** Non-intrusive electrical connection at BGA balls
• **Signal Path:** Matched-length traces designed to minimize skew ## Key Features • Direct probing of DDR2 signals at BGA ball locations
• Non-intrusive measurement architecture eliminates load effects
• Access to command, address, control, and data bus signals
• Signal integrity preservation through controlled impedance and matched trace routing
• Mechanical interface between logic analyzer and DRAM components ## Typical Applications • DDR2 memory subsystem validation and debugging
• High-speed DRAM signal characterization
• FB-DIMM design verification and troubleshooting
• Data traffic observation during functional testing ## Compatibility & Integration • **Logic Analyzer:** Keysight 16900 Series
• **DRAM Modules:** FB-DIMM DDR2 memory modules **Note:** This product is obsolete. A user’s guide is available for installation and connection instructions.