Item 1: Membrane windows, qty 55.
Frame size and thickness: 25mmx40mm (± 1mm on each day), 200μm thick
Membrane: Low Stress Silicon Nitride
Film thickness: 500nm±25nm
Membrane coating: N/A
Metal Grid: N/A
Windows size: 750μmx750μm, Array of 11x7 interlaced with an array of 6x10 windows on each 25mmx40mm chip

Item 2: Windows with no membrane, qty 18.
Frame size and thickness: 25mmx40mm (± 1mm on each day), 200μm thick
Membrane: N/A
Film thickness: N/A
Membrane coating: N/A
Metal Grid: N/A
Windows size: 750μmx750μm, Array of 11x7 interlaced with an array of 6x10 windows on each 25mmx40mm chip.

Item 3: Silicon Chips, qty 24.
Frame size and thickness: 25mmx40mm (± 1mm on each day), 100μm thick
Membrane: N/A
Film thickness: N/A
Membrane coating: N/A
Metal Grid: N/A
Windows size: N/A

Source selection method ; Lowest price Technically acceptable or brand name or equal.

SLAC National Accelerator Laboratory is operated by Stanford University for the Department of Energy. As a management and operating contractor, subcontracts awarded by the Laboratory are not Federal procurements, and are not directly subject to the Federal Acquisition Regulations in 48 CFR. Nonetheless, certain Federal laws, Executive Orders, and regulations may affect our DOE approved purchasing system, as required by statute, regulation, or contract terms and conditions.