There is provided multicolored metal rings and multicolored metal tubing and a method for producing metal rings and metal tubing for use in forming multicolored rings. The method may also include saving a first test result of the execution of the test code segment after a first iteration and comparing additional test results of each subsequent iteration with the first test result. for between about five minutes to sixty minutes; depositing an oxide layer and a second polysilicon layer, thereby filling the trench; planarizing the structure to the top of the level of the portion of the second polysilicon layer which is located in the trench; and completing the CMOS device. The compounds are also useful in medicine e.