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Introduction

GDS RIP is a library that rasterizes GDSII files at very high resolutions. It is built as a static library designed to be linked into the user's main program. Gdsriplib is multi-threaded increasing throughput on CPUs that support hyper threading or on multiple CPUs that share a common pool of memory.


block diagram of gds_rip

Block diagram of GDS RIP operation.


Summary of Flow

    The GDSII stream file is loaded into memory and compressed on-the-fly as it is loaded.

    The layout data is exploded and a stream of polygons are extracted based on the window of interest.

    The rasterizer converts the polygons into a bitmap which is held in RAM. When complete, the function returns a pointer to the calling application which can then access the bitmap and perform some action on it - typically formatting and or compressing it.



GDS2TIFF Application

For non programmers who wish to rasterize GDSII data at a high resolution we include the application known as GDS2TIFF. This can be run from either the command line (on Linux/Windows) or from a GUI (Windows only.)



Grayscale Output Option

Some mask writers have the ability to modulate the power or beam intensity on a pixel-by-pixel basis. These machines can take advantage of grey scale input in order to generate smoother edges at the same resolution (or use a lower resolution and maintain edge smoothness. Details




Programmers Corner

Links to details of how the RIP library works and how it can be called by an application

Deliverables

Linking the Library

Functions

Setup Arguments

Sample Flow

Header

 

 

 
 
 

Geometry Details

Path Mitering

Stripe Orientation

Multi-threading

Raster Interleaving

Double Buffering

Orientation vs Speed

Output Tile Overlap

 

Benchmarks

We include a couple of benchmarks to show the performance of GDS_RIP.

LCD Flat Panel

300 mm Wafer Scale RDL Mask



Download Revision History Price



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